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  1. #51
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by regal81455 View Post
    IIRC correctly filtered down to 30microns and the one at the TB is 10microns. Just a thought...
    That's the standard recommendations.

    On my cars I use a simple carburetor filter between the low pressure pump and the surge tank then a standard GM MPFI fuel filter (late 90's Astro Van) filter after the high pressure pump. I am not sure what the micron filtration levels are between the two filters, but figured if its good enough for OE's trying to get 100,000 miles out of an engine (~12,000 mile change intervals), its good enough for me.
    The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 2 & TKO-600 (Drag Week 2011!), '72 Centurion Conv't - 455w/TH400, '67 T-bird 4Dr (suicide) w/428, MegaSquirt 1 & C6. '69 Firebird replaced, now building a Pontiac Turbo L6!

    My Skylark thread
    http://www.v8buick.com/showthread.php?t=208168
    My Pontiac OHC Six thread.
    http://www.v8buick.com/showthread.php?t=219250

    I'm just a regular guy that fuel injected an old Buick and Thunderbird.

  2. #52
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    Oct 2005
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    Albuquerque, New Mexico
    Posts
    538

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by regal81455 View Post
    Why not install two filters, that's what I did on my EFI install -- one right before the pump @ the tank ( obviously your pump is much closer to engine ) so I'd say one right at the tank and then one in the engine compartment before the TB. Double the filtration! I really didn't want any junk being sucked into my pump, nor did I want to take the chance something slipped by the 1st filter and then into the TB somehow. I think the one at the pump if IIRC correctly filtered down to 30microns and the one at the TB is 10microns. Just a thought...
    Good idea.
    Eric B

    1972 GS 350 4sp Convertible (running 455)
    1972 GS 350 Hardtop (running 455)
    1971 Olds Cutlass - turbo LS conversion - project underway!
    1995 Trans Am - Supercharged and FAST
    1997 Chevy 3500 Supercharged

  3. #53
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    Nov 2011
    Location
    Rifton, NY
    Posts
    850

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    I've been on and off the Holley site for 2 weeks now. Look what just magically appeared.... https://www.holley.com/products/fuel.../parts/550-511

    Wonder how much they were influenced by the success and price point of the Fi Tech unit
    Jacob
    72 Skylark with rebuilt Buick 355. 8.5:1 JE pistons. TA 1.60 roller rockers, roller cam and lifters.
    TA SP3 Intake converted to Holley HP MPFI with 66lb injectors
    Chevy 12 bolt 4.11 gears
    TA 1 5/8" headers
    Extreme Automatics Stage II 200-4r Extreme Automatics 2600rpm 9.5" converter
    Coil near plug ignition, GN cam sensor, 36-1 crank trigger.
    Front and rear disc brake conversion, Rear sway bar, boxed lower rear control arms
    17x8 and 17x9 Year one Magnum wheels. 285/40/17 rear tires.

  4. #54
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    hazard,ky
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    in a way that's good maybe all these systems will come down some. as in the 2k units. I hope fi tech had patents and sues holley though.

    I wonder with either system if I can load the software on a tablet and tune it like e street. I know you can plug in a laptop into fi tech. so im sure I could emulate it on android.
    66 skylark 2 dr hartop...... in progression
    07 silverado 3500 hd 6.0
    12 kia sorento sx
    99 f150
    89 dodge spirit
    http://smg.photobucket.com/albums/v237/nekkidhillbilly/

  5. #55
    Join Date
    Nov 2006
    Posts
    153

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    received my kit about a week ago and it did include the Russel hose, the throttle body and the fuel command center are built with excellent quality I was very impressed with the fuel command center when you hold this piece in your hand and look at it, by today's standards I was really impressed with the quality .
    I seen jegs is also selling the fitech also as pace. I will post some pics soon I have the fuel center installed but it is tacking me a bit longer to complete cause I am really trying to make it look like it was built with it from the factory.

  6. #56
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    Sep 2012
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    MI.
    Posts
    2,966

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by nekkidhillbilly View Post
    in a way that's good maybe all these systems will come down some. as in the 2k units. I hope fi tech had patents and sues holley though.

    I wonder with either system if I can load the software on a tablet and tune it like e street. I know you can plug in a laptop into fi tech. so im sure I could emulate it on android.
    WOW!!! You're not only nekkid you're an hightechhillbilly! LOL

    Would be cool if someone sold a self tuning EFI brain that would control TBI so the old TBI can be adapted to other cars very inexpensively or upgraded to a brain that doesn't need a chip burned for it!!! Or be able to upgrade an old TBI engine to actually make some power!!!



    Derek
    64 Skylark,401 Nailhead,ST400,3.23:1Posi
    64 Skylark,305Vortec sbc,700R4,12blt Posi 3.73,low 14s. A sbb 300 stroker planned for it.
    72 Skylark Convert. in progress, Not yet assembled 455 .020 over,70 heads with stage1 valves,gasket matched and bowl blended,transmission to be determined.
    65 Chevy Impala,4,400lbs,383sbc,700R4,3.07posi,1.80 60' foot time low 13s @101mph,15mpg city,24mpg highway

  7. #57
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    May 2002
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    Linden, MI
    Posts
    4,677

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Holley is asking a lot to make a pre order with so little information. Of course my main problem is that Holley unit looks like a toad.

    From what I can see the screen looks nicer than Fitech's but my piggybank still says Fitech on it's side. Unless someone here starts showing major problems with the Fitech I am going to see how good it works with blow through this spring.
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  8. #58
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    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,464

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Each year the efi systems get better and lower cost.. I sold all my efi stuff and will buy another setup in a few years.
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  9. #59
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    Ely, NV
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    From the Holley screen's I saw on various cars during Drag Week, Holley makes a very nice dash screen/controller for their ECU's. I was genuinely impressed with it.


    Competition is usually a good thing.
    The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 2 & TKO-600 (Drag Week 2011!), '72 Centurion Conv't - 455w/TH400, '67 T-bird 4Dr (suicide) w/428, MegaSquirt 1 & C6. '69 Firebird replaced, now building a Pontiac Turbo L6!

    My Skylark thread
    http://www.v8buick.com/showthread.php?t=208168
    My Pontiac OHC Six thread.
    http://www.v8buick.com/showthread.php?t=219250

    I'm just a regular guy that fuel injected an old Buick and Thunderbird.

  10. #60
    Join Date
    Nov 2011
    Location
    Rifton, NY
    Posts
    850

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    It sounds silly but Holleys touch screen and the various standalone ecu controlled gauges they offer are a big draw for me to their product. It allows me to simplify my interior, eliminate wires and reduce the load on my fuse block. I can cater them to whatever situation I encounter and don't need to carry around a laptop.

    It all comes down to what you want to get out of your Efi setup. Are you looking for maximum performance, the best bang for the buck or something to install and forget about. There are companies that make a product for each type of customer
    Jacob
    72 Skylark with rebuilt Buick 355. 8.5:1 JE pistons. TA 1.60 roller rockers, roller cam and lifters.
    TA SP3 Intake converted to Holley HP MPFI with 66lb injectors
    Chevy 12 bolt 4.11 gears
    TA 1 5/8" headers
    Extreme Automatics Stage II 200-4r Extreme Automatics 2600rpm 9.5" converter
    Coil near plug ignition, GN cam sensor, 36-1 crank trigger.
    Front and rear disc brake conversion, Rear sway bar, boxed lower rear control arms
    17x8 and 17x9 Year one Magnum wheels. 285/40/17 rear tires.

  11. #61
    Join Date
    Jul 2009
    Location
    Palm Harbor, FL
    Posts
    746

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Wonder where the new Holley unit is/will be assembled? Their Terminator units are assembled in the US which is partly responsible for the price premium. I suspect the FiTech unit is assembled overseas.
    64 Skylark Convertible
    462 w/ Stage 2 heads, TA 212 cam, B4B intake
    TKO600
    3.73 12 Bolt w/ TruTrac and Moser axles

  12. #62
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by 300sbb_overkill View Post
    WOW!!! You're not only nekkid you're an hightechhillbilly! LOL

    Would be cool if someone sold a self tuning EFI brain that would control TBI so the old TBI can be adapted to other cars very inexpensively or upgraded to a brain that doesn't need a chip burned for it!!! Or be able to upgrade an old TBI engine to actually make some power!!!



    Derek
    like tbi chevy? you could run a megasquirt on it but its not a simple tune process like these are but you could make changes without burning chips and its cheap. moneywise these two setups are the best bang for the buck though.
    66 skylark 2 dr hartop...... in progression
    07 silverado 3500 hd 6.0
    12 kia sorento sx
    99 f150
    89 dodge spirit
    http://smg.photobucket.com/albums/v237/nekkidhillbilly/

  13. #63
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    hazard,ky
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    5,918

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by sailbrd View Post
    Holley is asking a lot to make a pre order with so little information. Of course my main problem is that Holley unit looks like a toad.

    From what I can see the screen looks nicer than Fitech's but my piggybank still says Fitech on it's side. Unless someone here starts showing major problems with the Fitech I am going to see how good it works with blow through this spring.
    let me ask you the handheld programmer what software is it based off? ie linux,win mo,android etc..

    "edit this is meant for real82it I clicked the wrong quote"
    Last edited by nekkidhillbilly; 11-29-2015 at 07:14 AM.
    66 skylark 2 dr hartop...... in progression
    07 silverado 3500 hd 6.0
    12 kia sorento sx
    99 f150
    89 dodge spirit
    http://smg.photobucket.com/albums/v237/nekkidhillbilly/

  14. #64
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    Oct 2005
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    Albuquerque, New Mexico
    Posts
    538

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    I need ideas to properly vent the fuel reservoir. I currently have the vent tube from the fuel command center reservoir hooked up to my "emissions tube" on the drivers side. This tube used to connect to my emissions carbon canister....but that was tossed long ago.

    I discovered that this will not work. The emissions tube pressurized as the gas tank started to vent. This in turn pressurized the reservoir, my low pressure line, and then vapor locked my mechanical fuel pump (or at least this is my theory as to why my car died and my mech fuel pump temp quit working, then started working again later).

    I need some ideas on how to vent this thing.

    I am thinking I could run a new line from the vent line on the reservoir in my engine compartment to the vent line at the corner of the tank and tee into it. I think this would work, but don't really want to run a new line up my frame. Even if I do this, I need to figure out where to vent my old emissions line.....since it seems venting is important to the reservoir. Without my emissions canister attached it vents right by my header/brake prop valve.......not sure I love that idea.

    Another redneck fix I read in the inter webs was to just drill a small hole in my "non vented" gas cap. While easy, the downside is potential gas fumes in the garage and spillage if your tank is really full.

    Other ideas?




    Here are the directions from the FI tech install sheet:


    Command Center Vent Port - IMPORTANT
    The Vent Port is a critical part of the installation and these instructions must be followed for a safe and proper operation of the system. The Command Center has a Vent Port complete with a Rollover Valve. A fuel rated hose or hard line must be routed from the Vent Port back to the fuel tank. Many vehicles are already equipped with a vent line to the tank. You can tee into the existing line if your vehicle is so equipped. DO NOT run a vent line from the Command Center to the OPEN AIR in the engine compartment or pointed to the ground or to the air cleaner. Fumes from the Vent Port are dangerous and must be properly routed. You may need to change the pipe fitting on the Command Cen- ter to suit the line diameter you use. If no existing vent line to the tank exists, you must plumb your new line to a point above the fuel level of the tank at the top or in the filler neck. Proper routing of a vent line is not an option. It is a mandatory part of the installation. If the vent is not prop- erly routed to the gas tank FiTech cannot be responsible for any fires or other issues resulting from improper vent rout- ing or failure to follow these instructions.
    Eric B

    1972 GS 350 4sp Convertible (running 455)
    1972 GS 350 Hardtop (running 455)
    1971 Olds Cutlass - turbo LS conversion - project underway!
    1995 Trans Am - Supercharged and FAST
    1997 Chevy 3500 Supercharged

  15. #65
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    the vented fuel cap wouldn't work I wouldn't think due to the fact that the command center is what needs vented. you should just be able to vent it directly on its own vent. all you need is a check valve charcoal filter that is on new cars hooked to it if im right on this.
    66 skylark 2 dr hartop...... in progression
    07 silverado 3500 hd 6.0
    12 kia sorento sx
    99 f150
    89 dodge spirit
    http://smg.photobucket.com/albums/v237/nekkidhillbilly/

  16. #66
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    They call it a vent line, but I bet its really and overflow return line, that doubles as a vent line when ever the EFI pump is out flowing the low pressure pump so a vacuum doesn't form in the surge tank.

    My vote is looking for a vented gas cap that fits.
    The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 2 & TKO-600 (Drag Week 2011!), '72 Centurion Conv't - 455w/TH400, '67 T-bird 4Dr (suicide) w/428, MegaSquirt 1 & C6. '69 Firebird replaced, now building a Pontiac Turbo L6!

    My Skylark thread
    http://www.v8buick.com/showthread.php?t=208168
    My Pontiac OHC Six thread.
    http://www.v8buick.com/showthread.php?t=219250

    I'm just a regular guy that fuel injected an old Buick and Thunderbird.

  17. #67
    Join Date
    Jun 2005
    Location
    hazard,ky
    Posts
    5,918

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by TheSilverBuick View Post
    They call it a vent line, but I bet its really and overflow return line, that doubles as a vent line when ever the EFI pump is out flowing the low pressure pump so a vacuum doesn't form in the surge tank.

    My vote is looking for a vented gas cap that fits.
    oic. then a vented tank or cap will work vent the tank.
    66 skylark 2 dr hartop...... in progression
    07 silverado 3500 hd 6.0
    12 kia sorento sx
    99 f150
    89 dodge spirit
    http://smg.photobucket.com/albums/v237/nekkidhillbilly/

  18. #68
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,464

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by DauntlessSB92 View Post
    I've been on and off the Holley site for 2 weeks now. Look what just magically appeared.... https://www.holley.com/products/fuel.../parts/550-511

    Wonder how much they were influenced by the success and price point of the Fi Tech unit
    I contacted Holley about this EFi and they say it is not setup to handle turbos or superchargers but the 1200 HP will be out soon and it is good for boost.
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  19. #69
    Join Date
    Jan 2004
    Location
    Motown, MI
    Posts
    1,016

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by DauntlessSB92 View Post
    I've been on and off the Holley site for 2 weeks now. Look what just magically appeared.... https://www.holley.com/products/fuel.../parts/550-511
    Looks nice and clean, & still much better looking than a q-jet
    Roller cam vid....
    https://youtu.be/XOOTINTA1DA
    Another vid, this May.....
    https://youtu.be/0v0TgH4cTPc


    71 GS 350, 2004r, JW 3,200 stall, TRW Forged .030, Ported T/A intake, 830HP Holley , Hooker supers, 2-1/2" Amer.Thunder thru N25's, 410 posi, F41, Full MSD ign. T/A Roller Cam,1.6 roller rockers, big valves, bronze guides,& fully ported heads. Fun street car. Platnum mist with blk. top and interior. Owned it since '76.

    Marty.

  20. #70
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    Oct 2005
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    Albuquerque, New Mexico
    Posts
    538

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by real82it View Post
    I need ideas to properly vent the fuel reservoir. I currently have the vent tube from the fuel command center reservoir hooked up to my "emissions tube" on the drivers side. This tube used to connect to my emissions carbon canister....but that was tossed long ago.

    I discovered that this will not work. The emissions tube pressurized as the gas tank started to vent. This in turn pressurized the reservoir, my low pressure line, and then vapor locked my mechanical fuel pump (or at least this is my theory as to why my car died and my mech fuel pump temp quit working, then started working again later).

    I need some ideas on how to vent this thing.

    I am thinking I could run a new line from the vent line on the reservoir in my engine compartment to the vent line at the corner of the tank and tee into it. I think this would work, but don't really want to run a new line up my frame. Even if I do this, I need to figure out where to vent my old emissions line.....since it seems venting is important to the reservoir. Without my emissions canister attached it vents right by my header/brake prop valve.......not sure I love that idea.

    Another redneck fix I read in the inter webs was to just drill a small hole in my "non vented" gas cap. While easy, the downside is potential gas fumes in the garage and spillage if your tank is really full.

    Other ideas?




    Here are the directions from the FI tech install sheet:


    Command Center Vent Port - IMPORTANT
    The Vent Port is a critical part of the installation and these instructions must be followed for a safe and proper operation of the system. The Command Center has a Vent Port complete with a Rollover Valve. A fuel rated hose or hard line must be routed from the Vent Port back to the fuel tank. Many vehicles are already equipped with a vent line to the tank. You can tee into the existing line if your vehicle is so equipped. DO NOT run a vent line from the Command Center to the OPEN AIR in the engine compartment or pointed to the ground or to the air cleaner. Fumes from the Vent Port are dangerous and must be properly routed. You may need to change the pipe fitting on the Command Cen- ter to suit the line diameter you use. If no existing vent line to the tank exists, you must plumb your new line to a point above the fuel level of the tank at the top or in the filler neck. Proper routing of a vent line is not an option. It is a mandatory part of the installation. If the vent is not prop- erly routed to the gas tank FiTech cannot be responsible for any fires or other issues resulting from improper vent rout- ing or failure to follow these instructions.

    Well, I decided to suck it up and do it the right way. I ran a new vent line from the fuel command center reservoir to my gas tank. I routed it in the frame rail following my factory fuel lines. I tee'd into my existing gas tank vent line on the drivers side of the tank. I will install a check valve (on order) in the vent line to make sure the flow can only go to gas tank and not pressurize or allow any gas liquid towards the fuel command reservoir (although I think a low prob of this ever happening)

    I also discovered that I have had the wrong type of gas cap on my car for many, many years........likely since I bought it in 1989! I always thought these cars had a non vented cap on them........but apparently not. I had also removed my vapor charcoal canister and plugged the line years ago. This caused my pressurization issue. It now has a nice new shiney vented cap on it.

    I believe this will fix my fuel pressure issue.....will report back after some testing this weekend.
    Eric B

    1972 GS 350 4sp Convertible (running 455)
    1972 GS 350 Hardtop (running 455)
    1971 Olds Cutlass - turbo LS conversion - project underway!
    1995 Trans Am - Supercharged and FAST
    1997 Chevy 3500 Supercharged

  21. #71
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by TheSilverBuick View Post
    They call it a vent line, but I bet its really and overflow return line, that doubles as a vent line when ever the EFI pump is out flowing the low pressure pump so a vacuum doesn't form in the surge tank.

    My vote is looking for a vented gas cap that fits.
    I had a chance to call FI Tech today. Asked them if the vent one was also an overflow....they said no. There is a check valve that will not allow liquid out of vent. I also asked if there was any issue if somehow gas made it into the vent tube from the gas tank (because instructions say to tee into vent line) ...... They said if gas does make it into vent line and back to the fuel command reservoir, it would simply drain into the unit....no issue.

    So, I think the vent line I ran to the tank is sufficient. No check valve needed (there's $10 wasted yesterday when I orders one).......I do that a lot when I get in too much of a hurry)

    I will try to drive it a lot this weekend and make sure there are no further issues.
    Eric B

    1972 GS 350 4sp Convertible (running 455)
    1972 GS 350 Hardtop (running 455)
    1971 Olds Cutlass - turbo LS conversion - project underway!
    1995 Trans Am - Supercharged and FAST
    1997 Chevy 3500 Supercharged

  22. #72
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    Albuquerque, New Mexico
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Well, after the 20 mile test drive today:

    The good news........I have a correctly routed vent line and correct vented gas cap on the car......

    The bad news.......still experiencing fuel pressure problems.(I think)...car didn't totally die on me, but did stutter and buck during wide open throttle tests. It was fine when I first tried one. Then we drove a few more miles, I tried a few more runs and had the issues.

    I am back to suspecting the mechanical fuel pump. I have a spare that I will swap out tomorrow. Hope that fixes it, otherwise i will likely have to drop the tank and inspect the pick up tube.
    Eric B

    1972 GS 350 4sp Convertible (running 455)
    1972 GS 350 Hardtop (running 455)
    1971 Olds Cutlass - turbo LS conversion - project underway!
    1995 Trans Am - Supercharged and FAST
    1997 Chevy 3500 Supercharged

  23. #73
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    Feb 2002
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    Dayton, OH
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    1,115

    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Check your messages. I spoke with the Fitech guys today at PRI and they have an idea what your problem may be.
    Ken Warner

    1970 GS 455 With Trishield 470 BBB, TA Stage-1 SE heads, TRI-Shield spec roller cam, FiTech EFI, Extreme Automatics Stage III TH200-4R and now a 3.90 rear gear!

  24. #74
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Thx guys for reaching out to FI Tech for me. I will be in contact next week.

    I put my spare fuel pump on and started car up just fine. Idled fine. Rev'd fine. Fuel pressure rock solid at 6lbs. I decided that before I go test the fuel pressure again with a few good runs I would try to fix another issue. This may have saved my motor......Unbelievably, while troubleshooting a very small pinhole leak in my NEW aluminum radiator, car got up to temp and was idling, I noticed vapor coming out of my breather......heard water boiling off in valve cover once I shut it off.......checked my oil.......had at least one quart of coolant in my oil. UN FRIGGN BELIEVABLE! This is the second motor I have had built for this car since 2013. First one had less than 1000 miles before I discovered it was full of metal. This motor has less than 800 miles on it. I will spare you the extensive list of crap that has went wrong with this build.....but it is mind boggling. This is my 4th build and all others went reasonably well. If my first one 25 yrs ago went like this, I would have walked away from this hobby and never looked back.......

    I have run a compression check and ruled out a blown head gasket. I will be doing a coolant system pressure test this weekend to see if I can narrow down the cause. My leading theory right now is that when my fan snapped off the snout of my water pump (see another post on that issue: http://www.v8buick.com/showthread.ph...NG!&highlight=) some type of damage may have been done to the front cover. I did inspect it pretty close when I put the new pump on, but maybe I missed something and coolant is leaking into the front cover and down into my oil pan somehow. Maybe the gasket between the front cover and engine? It may also be leaking at the intake into engine I think......just not sure yet, and not the point of this thread.

    Anyway, once I get this sorted out I will be back to finishing up the fuel injection install, but right now, not sure when that will be.
    Eric B

    1972 GS 350 4sp Convertible (running 455)
    1972 GS 350 Hardtop (running 455)
    1971 Olds Cutlass - turbo LS conversion - project underway!
    1995 Trans Am - Supercharged and FAST
    1997 Chevy 3500 Supercharged

  25. #75
    Join Date
    Nov 2006
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    I think when you test with cap psi you will find your problem. you can check your plugs for discoloration also, or a bore scope in the cylinders.never heard of a water pump change cause issues of coolant in oil. keep us posted, don't test over cap psi or about 15

 

 
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