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  1. #26
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    I do believe it is all above the butterflies. They have a video of the bores while running on a full dyno pull
    James & Stacy Miller
    GSCA #1143
    '70 GS 350 w/ 455. Red/ Black bucket seat int.
    Stock for now.

  2. #27
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by Ttype455 View Post
    I do believe it is all above the butterflies. They have a video of the bores while running on a full dyno pull
    I saw the same thing. If that is the case then you can understand about adjusting the butterflies for idle.

    Also wonder what that tube is in one of the bores. My guess is that it is some kind of sensor.
    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

  3. #28
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    Oregon
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    93

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

    What do the instructions say about a fuel vent back to the tank? My 65 doesn't have a vent so would that be a required change or does the system just vent to the reservoir?
    Go fast with class!


  4. #29
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by hobbby View Post
    What do the instructions say about a fuel vent back to the tank? My 65 doesn't have a vent so would that be a required change or does the system just vent to the reservoir?
    If you are using the fuel command system you would have to build a vent line to he gas tank.

    If you are using your own electric fuel pump you will need a return fuel line to the gas tank. The one thing I am confused about is do you need a pressure regulator with this type of system? FiTech's directions just show line in and line out with no regulator. Would have a talk with them about this when ordering.
    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

  5. #30
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    Oct 2006
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    Bremerton, WA
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    734

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

    Regulator is supposed to be built into the throttle body. No need for an additional one.
    Peter Tonder
    1967 GS 400

  6. #31
    Join Date
    Jul 2006
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    Northwest burbs of Chicago
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    460

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

    Eric,

    That's a cool setup and definitely less expensive than a lot of the other options out there. I'll be curious to see how it does on the road and if you see any increase in mileage. Thanks for posting!
    Jon S.
    1968 Skylark
    Built 464:TH400:12 Bolt w/ 3.42 Posi:BBS Style 42 Wheels:Recaro Buckets:UMI Suspension:Wilwood 6 Pots

  7. #32
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    Oct 2005
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    Albuquerque, New Mexico
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    537

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

    Quote Originally Posted by 70purplerag View Post
    The install looks great, very clean and well thought out. Can't wait to hear results of the road test. How loud is the the fuel sump under the hood. Is it overpowering at idle? I ordered mine a few days ago, I hope it will also help with the raw fuel smell in the garage.

    Keep us posted and thank you for sharing and documenting your experience.

    Kevin
    I ran the car through a warm up cycle tonight. I can't even hear the fuel pump after start up.........

    Edit.......after the test drive today, I will say you can faintly hear the pump......but it is not bad at all. I have heard many pumps, including the stock one on my Chevy truck, that I would consider louder than this one.
    Last edited by real82it; 11-14-2015 at 08:28 PM.
    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

  8. #33
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    Oct 2005
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    Albuquerque, New Mexico
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    537

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

    I will start with the good. Took my first test drive today with the unit installed and was extremely impressed. Idle was smooth, acceleration was crisp, and the unit seen perform great from the very beginning. As the unit continued to learn it drove even better! Very smooth acceleration. I also noticed that my switch pitch in low stall behaved much better. The car no longer seemed like it wanted to die in low stall at a stop when idling in gear. I was extremely happy until I got home and tried to move the car into the garage.

    When I did and backed the car up I noticed fluid pouring out from underneath the car! I shut the car off and opened the hood to find gasoline everywhere! And I mean everywhere. There had to be a gallon of gas in the engine compartment.

    The high pressure side line after the fuel filter but before the throttle body had burst and was squirting a half inch stream of fuel onto my engine and all over my engine compartment. I can't stress how lucky I am the car did not catch on fire. I think the only thing that saved me was the fact it had cooled down since the test drive earlier in the day.

    ....DO NOT USE their supplied fuel line if it is not Russell branded line. I am lucky my car is not a pile of ashes right now. I believe I received an older unit with their previous suppliers fuel line (based on a conversation with them last week). I had called them asking to see if I could get some more of the same type of fuel line that I had received my kit. They indicated the fuel line I had was probably the old-style and all their new kits were shipped with Russell branded fuel line with the larger weave on the outside of the fuel line. I think I understand why they changed suppliers now! That stuff dissolved and blew a hole within 10 miles of me driving the car! I am extremely lucky my car did not catch on fire. The bad news is that most of my freshly refinished engine compartment now gets to be re-done! The paint is spotted and damaged from all the gasoline! I am pissed off.....but also thankful the fire department was not involved. Here is a picture of a portion of the fuel line they supplied with the area that burst towards the bottom of the photo. The rest was an area I cut to inspect more of the line.



    Even worse, once I looked at the line I found it it was actually disintegrating! It was very gummy and falling apart! After only a few minutes of use!!!! absolutely unacceptable. I will be calling them on Monday to see what they say. Stay tuned.
    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

  9. #34
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    Ely, NV
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Holy crap! I've had great luck with Gates EFI hose I get by the foot from NAPA. Seems to be resistant to all of today's gasoline's ills. I've got Russel brand braided line on the car now, to make sure I didn't have any tech inspection issues at Drag Week. Bought some cheap stuff that was rated for the pressure, etc and after about four years it started to weep through the braiding, and same thing it was gummy and disintegrating.

    In a little over six years of being EFI I've only had two instances where the pressure line came loose (fittings on the pumps I use) and both times fuel pressure drop was enough to shut the engine down and the ECU turned the fuel pump off. Certainly glad it wasn't worse for you, and does beg the question, does the TBI control the fuel pump relay?
    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. #35
    Join Date
    May 2002
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    Linden, MI
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    4,663

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

    All of my fuel line are now Teflon. Now really happy I did it that way. Thinking when I move to the fuel injection I will take all lines to the shop and have them pressure tested.

    Sure glad that you did not catch on fire. Scary deal no matter what.
    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

  11. #36
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    Oct 2005
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    Albuquerque, New Mexico
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    537

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

    Quote Originally Posted by TheSilverBuick View Post
    Holy crap! I've had great luck with Gates EFI hose I get by the foot from NAPA. Seems to be resistant to all of today's gasoline's ills. I've got Russel brand braided line on the car now, to make sure I didn't have any tech inspection issues at Drag Week. Bought some cheap stuff that was rated for the pressure, etc and after about four years it started to weep through the braiding, and same thing it was gummy and disintegrating.

    In a little over six years of being EFI I've only had two instances where the pressure line came loose (fittings on the pumps I use) and both times fuel pressure drop was enough to shut the engine down and the ECU turned the fuel pump off. Certainly glad it wasn't worse for you, and does beg the question, does the TBI control the fuel pump relay?
    The TBI unit does control the fuel pump on the fuel command center.....but it didn't shut off. Must have still been getting enough fuel to run at idle and I guess there is not some type of low pressure shut off in the unit/software.
    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

  12. #37
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by real82it View Post
    The TBI unit does control the fuel pump on the fuel command center.....but it didn't shut off. Must have still been getting enough fuel to run at idle and I guess there is not some type of low pressure shut off in the unit/software.
    Eric, what is the length and gauge of the orange fuel pump wire. It looks a little light and would not run to the back of the car.

    When I inquired about my fuel system's compatibility with the FiTech TBI they said I would have to use a relay (already set up that way) BUT, Fitech schematics claim no relay is required. It may have something to do with my pump. Will have to run that down.

    Hoping that Fitech will get their tech page set up soon.
    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

  13. #38
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    Oct 2005
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    Albuquerque, New Mexico
    Posts
    537

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

    Quote Originally Posted by sailbrd View Post
    Eric, what is the length and gauge of the orange fuel pump wire. It looks a little light and would not run to the back of the car.

    When I inquired about my fuel system's compatibility with the FiTech TBI they said I would have to use a relay (already set up that way) BUT, Fitech schematics claim no relay is required. It may have something to do with my pump. Will have to run that down.

    Hoping that Fitech will get their tech page set up soon.
    It appears to be 16 gauge wire.
    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

  14. #39
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by real82it View Post
    It appears to be 16 gauge wire.
    That seems way too small to run an electric pump at the back of the car. May be why they told me to run a relay. Guess I will have to really look at power requirements and do the math.
    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

  15. #40
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    Oct 2008
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    Central IL
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by real82it View Post
    I will be calling them on Monday to see what they say. Stay tuned.
    If you end up buying new line out of pocket save yourself a few pennies and buy Parker Pushlok from your local hydraulic hose shop, its NHRA legal and will cost WAYYYY less than buying from Summit, etc... and they'll just re-box/re-label the parker stuff anyways. IIRC Fragola is the name they sell it under. Im pretty sure the Earl's stuff is Parker too -- hell wouldn't be surprised if most of the domestic pushlok type hoses are re-branded Parker hoses.

    61 Sky 215CI 2spd

  16. #41
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    Dec 2002
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    378

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

    Quote Originally Posted by regal81455 View Post
    If you end up buying new line out of pocket save yourself a few pennies and buy Parker Pushlok from your local hydraulic hose shop, its NHRA legal and will cost WAYYYY less than buying from Summit, etc... and they'll just re-box/re-label the parker stuff anyways. IIRC Fragola is the name they sell it under. Im pretty sure the Earl's stuff is Parker too -- hell wouldn't be surprised if most of the domestic pushlok type hoses are re-branded Parker hoses.
    Good info there. Thanks for sharing.
    James & Stacy Miller
    GSCA #1143
    '70 GS 350 w/ 455. Red/ Black bucket seat int.
    Stock for now.

  17. #42
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    Oct 2005
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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

    Thanks for the Parker hose info.

    I contacted the company today. I talked to Ken (Owner?). He was understandably concerned and said the reason they had switched to Russell hoses was due to previous issues. They had an issue with some hose while testing but the hose mfg assured them it was because they were unlucky and got some from the very end of a run that was not vulcanized correctly. He said I was the first to contact him with this type of problem.

    He said he would send a new unit with Russell hose today. Even offered to expedite it if I wanted him to (which I declined because I won't be able to get back to the car until this weekend anyway).

    I suggested, twice, that they contact anyone who may have received kits with this hose in it. Very high risk of a major problem, including injury or death.
    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

  18. #43
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    Linden, MI
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Did some checking on wiring. A Walbro pump that will put out 340 lph @ 70 psi will need about 17 amps. Wire length should be no more than 15 feet. Used a marine wiring chart, figured they were more stringent. Recommended gauge would be 10. That would support 1000 HP.

    Would like to know more about how fuel pressure is regulated and specs on electronics for fuel pump.
    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

  19. #44
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    Feb 2002
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    Dayton, OH
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    1,104

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

    Quote Originally Posted by sailbrd View Post
    Did some checking on wiring. A Walbro pump that will put out 340 lph @ 70 psi will need about 17 amps. Wire length should be no more than 15 feet. Used a marine wiring chart, figured they were more stringent. Recommended gauge would be 10. That would support 1000 HP.

    Would like to know more about how fuel pressure is regulated and specs on electronics for fuel pump.


    If the chart recommens 10ga I'd go at least 8ga and solder as many of the terminals and connections as possible. A smear of dielectric grease wherever there are crimp terminals/connections that are removable will save you headaches later on as well. Be sure to use a fuse for that long run right at the battery to keep things safe, maybe start with a 20amp fuse and keep a 25 and/or 30 amp fuse in the glove box until you get things proven out. A spare relay in the glovebox is cheap insurance as well. I've read some stories of chineesium relays rated for 25 amps melting out at around 15, one article recommended the Bosch 30 amp units as safe and cost effective.

    That fuel line failure would add a lot of "pucker factor" to a drive. I can only imagine the possible liability, I hope they get that resolved as i'd like to see these guys succeed. I was hoping they would offer to send you a new fuel line kit and I see they did, good for them and you! I'm actually going to get to SEMA this year, I hope to chat with these guys if they aren't too busy.
    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!

  20. #45
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by Ken Warner View Post
    I'm actually going to get to SEMA this year, I hope to chat with these guys if they aren't too busy.
    PRI? SEMA just ended a week ago
    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.

  21. #46
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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
    PRI? SEMA just ended a week ago
    Attached Images Attached Images
    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

  22. #47
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    Ely, NV
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Hmm, now that you mention it

    http://www.tflcar.com/2015/11/toyota...re-sema-video/






    Now I feel dirty
    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.

  23. #48
    Join Date
    Feb 2002
    Location
    Dayton, OH
    Posts
    1,104

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

    Quote Originally Posted by TheSilverBuick View Post
    PRI? SEMA just ended a week ago
    Yep, brain cramp.. meant to type PRI.
    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. #49
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    Oct 2005
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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

    Got the replacement unit with new hose yesterday. FI tech responded quickly with a replacement. The new hose is clearly stamped "Russell" on the exterior. Here is another pic of the old hose. They had to send me an entire new unit because the hose was disintegrating and I found pieces in the throttle body when I drained it. I will be moving my filter to directly before the TB even though the instructions show to install mid line....

    I won't have time to install the new one for a few weekends with all the thanksgiving family coming into town....unless I can sneak away for a few hours.

    Testing the mfg issue/vulcanization problem theory.........The hose piece on the left is a piece I cut off from a different section of the line and soaked in gas overnight. I then took out and cut open to inspect. No sign of deterioration. The piece on the right is what happened when I soaked the piece that came from the area near where the line blew.....completely started disintegrating. Interesting the pieces of line can react so differently with only a small length separating the 2 samples.





    Again....I can't stress enough....if you received one of these units and your fuel line is not stamped "Russell", and it looks like this with this with the cloth wrap exterior.....DON'T use it. Buy something else or contact the company for new line.
    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. #50
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    Default Re: FI Tech "Go EFI 4" Self Tuning Throttle Body Injection Install Thread

    Quote Originally Posted by real82it View Post
    I will be moving my filter to directly before the TB even though the instructions show to install mid line....
    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...

    61 Sky 215CI 2spd

 

 
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