This is all great info. Has anyone taken the 'super' cat cam and advanced it back to straight up to bring all that HP down a little? Mike
Wow Bill, I HAVE that cam! :beer I bought it years ago in a package deal, and put it on a shelf. It's real close to my Isky 310...my Isky has a bit more intake duration, and closer lobe centers. I always wanted to try it, just need to get the lifters. Is this cam in your Blue 'Cat??
We will be using a cam specifically made for our application many years ago & were not able to use it because of V/P clearance issues. Now that has been overcome. Guess we'll find out how or if it works. Some of the specs. 274*/274*@.050". .400" lobe lift. RPM range????? With the "Rockers" we were able to go to 7100 & did not find the drop-off point with the older cam. Using stock "Rockers" actual lift at the valve .570". With the "Rockers" actual lift at the valve .792". Will find out at Dyno time if it was worth the time, effort & $$$$$$. Hopefully 10's here we come. If calcs are correct compression will be in the 14.5-1 area. If nothing else with this compression the exhaust should have that "Crackle" to it like the ole gassers of the past, maybe?
I have been running this Engle cam for about 12 years or so now, (info taken from mid 1960s Engle Cam catalog) Engle solid tappet part #1901, cam grind #322, type 'Super 3/4' Lift at valves .460"(1.5:1 ratio rockers) .480"(1.6:1 ratio rockers) ( I am not sure how they figured that out, the numbers don't work out quite right- I never measured lift at cam before installation-but should be right around .300") Duration 274* Intake timing 30-68 Exhaust timing 68-30 Valve lash (hot) .018" I have two Isky roller cams (only one set of roller lifters so far but looking for more) which I am planning on using soon. 1) Isky '505C' roller cam Lift at valves .505" (adv gross using 1.6:1 ratio rockers) Adv duration 320* Duration at .050" 274* Lobe seperatin 110* Intake timing 50-90 Exhaust timing 90-50 Valve lash hot .028" 2) Isky 550 Super Legerra, grind #RR-550, type 'Ultra Super Track' Lift at valves .576" ( using 1.6:1 ratio rockers) Lift at cam .360" Duration 330* Lobe seperation 108*(this is not good) Intake timing 57-93 Exhaust timing 93-57 Overlap 114* Valve lash .018" hot (above timing given at .028" lifter rise) (following timing given at .050" lifter rise) Duration 282 Intake timing 33-69 Exhaust timing 69-33 I also have a few 'hot cams' for 322" but no specs for them. I have a factory Export cam, an Export cam reground by Ed Winfield, a Weber solid, and a Harmon Collins Roller. I need to do more research and see what I can come up with for specs on them. The specs for the 322" factory 'Export' cam are: Lift at valves .420"-(I assume using 1.5:1 as the ratio as this was for the earlier motors) Duration 297* Intake timing 34-83 Exhaust timing 76-41 Overlap 75* If any one has any roller lifters they are looking so sell ( or trade?) please let me know. I have three roller cams and on ly one set of lifters for them. I may look in to having Chevy roller lifters modified for use-mainly just having cross links made up.
Here's a question for all the smart people. I have a pretty nasty cam in my 65 Wildcat, but used Rhodes lifters to help the vacuum and idle quality. I have always been happy with the performance of it, but what are your thoughts of using a bleed down lifters? Obviously this question applies to hydraulic cams only. I would guess that a solid lifter cam would be a bit unrulely on the street.
Walt, yes....that is TOPCAT's cam.......i really love it.....pulls great.....sounds great.......and it works well with the 4 speed. Never really raced it............yet...... Peace WildBill
Im running the Comp cam 501/506 in mine, but for some unknown reason my lifters tick. doesnt do it all the time, just start out of the blue.
Sig Erson 140 H part Number 625821 IO 41, IC 81 EO81, EC 41 .480 Lift at 1.6 rocker ratio 302 Duration (I believe this was at .006 checking clearance) (going from memory from 1972 :>) I believe the lobe center is 110 Valve Clearance is .080 Intake, .085 Exhaust @ 2 degrees advance (at 4 degrees advance, intake valve clearance was only .020) Roger
i sed the ta perf 413 cam give over 500 lift with their roller rockers jam TA 413-401 .426 .426 .452 .452 .487 .517 228 234 286 228 244 296 276 276 110 113 20-5500 20-5500 .487 .517 Part Nos. Stock 1.40 RATIO TA 1.60 Roller Rockers AT .050 ADVERTISED LOBE CENTER POWER RANGE VALVE LIFT DURATION IN. EXH. IN. EXH. IN. EXH. IN. EXH. PRICE CODE TA 25 .415 .474 .495 280 288 110 15-5000 TA 20 TA 112 .411 .406 .411 .421 .470 .464 218 210 218 218 215 228 280 260 280 262 110 112 15-5000 15-5000 .470 .481 H H H H H HYDRAULIC .433 364-401-425 & 264-322 Nailheads Part Nos. STOCK 1.55 RATIO TA ROLLERS 1.60 RATIO AT .050 ADVERTISED LOBE CENTER POWER RANGE VALVE LIFT DURATION IN. EXH. IN. EXH. IN. EXH. IN. EXH. PRICE CODE TA V260H .434 .434 .440 .440 206 206 260 260 112 1500-5500 J HYDRAULIC 231 - 252 Turbo V6 TA 413-401 TA 30 TA 25 TA 20 TA 112 TA V260H Nailhead CAMSHAFT DESCRIPTIONS Turbo V6 CAMSHAFT DESCRIPTIONS Performance street and strip cam, gives 25+ HP increase. TA 1440 Stage 1 springs required. Moderate idle. 2000+ stall converter recommended. Recommended for all around street performance, an upgrade over the dual quad Riviera cam gives 20 HP increase in most combinations. TA 1440 Stage 1 springs recommended. Stock converter and gears ok. Good idle. Similar to stock with some extra lift resulting in the same driveability as original. Works well with low compression engines and smaller displacements. TA 1440 Stage 1 springs recommended. Stock converter and gears ok. Good idle. Great street/strip cam, makes lots of power without compromising drivability. 112 degree lobe center allows the use of more boost before experiencing detonation. Smooth idle. Hot street/race cam, gives 40+ HP increase. TA 1440 Stage 1 springs required. Rough idle. 2500+ stall converter and gears recommended. A great cam to really bring out the power of the Nailhead engine. Hot street/race cam, gives 30+ HP increase. TA 1440 Stage 1 springs required. Fair idle. 2500+ stall converter and gears recommended. Smooth Idle - just like stock, Good Idle - mild lump, but doesnt impair driveability, Moderate Idle - nice performance sound, Fair Idle - heavy lump, Rough Idle - very lumpy race type idle Smooth Idle - just like stock, Good Idle - mild lump, but doesnt impair driveability, Moderate Idle - nice performance sound, Fair Idle - heavy lump, Rough Idle - very lumpy race type idle Idle Quality: Idle Quality: SPO Grinds Also Available, Please Inquire Ground on new cam blanks, not old cores! CAMSHAFTS 480-922-6807 Order and Tech Line www.TAPERFORMANCE.com 64 TA Performance Products, Inc. TA V264H .464 .464 208 208 264 264 112 1500-6000 J TA V270H .470 .470 214 214 270 270 110 .449 .449 .455 .455 1500-6000 J TA V264H TA V270H Excellent street/strip cam, makes more upper rpm power without sacificing low end torque. 112 degree lobe center allows the use of more boost before experiencing detonation. Good idle. Great strip or hot street cam, designed for high flowing heads and larger turbos. 110 degree lobe center for explosive top end torque and horsepower. Moderate idle. Ask About Our Roller Cams See Our V6 Roller Cam accessories for the nose of the cam (see pg 57). See our all NEW shrouded solid roller lifter. Fully unleash the power of your Turbo car with a Solid Roller! *** Please Indicate If Using Stage 2 Cylinder Heads &/or Stroker Crankshaft. OVERLAP @ .050 0008 13
sorry copying their page didnt work to good but max lift both intake and exhaust is 517 with their roller rockers
Schneider has a nice selection of Nailhead cams. Even a grind for a supercharged nail!:TU: http://schneidercams.com/364401425hydraulicliftercamshafts.aspx Most of the grinds are on the milder side, so they would make great street cams....I'm liking the 284-94 with a set of Roller Rockers!:laugh: Grind Number: 262-70H Intake Duration (gross): 262 Exhaust Duration (gross): 270 Intake Duration (.050): 208 Exhaust Duration (.050): 214 Intake Valve Lift*: .448" Exhaust Valve Lift*: .456" Lobe Separation: 112 Intake Valve Lash: .000" Exhaust Valve Lash: .000" RPM Range: 1800-5000 Grind Number: 270-80H Intake Duration (gross): 270 Exhaust Duration (gross): 280 Intake Duration (.050): 214 Exhaust Duration (.050): 220 Intake Valve Lift*: .456" Exhaust Valve Lift*: .480" Lobe Separation: 112 Intake Valve Lash: .000" Exhaust Valve Lash: .000" RPM Range: 2000-6000 Grind Number: 284H Intake Duration (gross): 284 Exhaust Duration (gross): 284 Intake Duration (.050): 224 Exhaust Duration (.050): 224 Intake Valve Lift*: .512" Exhaust Valve Lift*: .512" Lobe Separation: 112 Intake Valve Lash: .000" Exhaust Valve Lash: .000" RPM Range: 2400-6400 Grind Number: 284-94H Intake Duration (gross): 284 Exhaust Duration (gross): 294 Intake Duration (.050): 222 Exhaust Duration (.050): 230 Intake Valve Lift*: .480" Exhaust Valve Lift*: .480" Lobe Separation: 112 Intake Valve Lash: .000" Exhaust Valve Lash: .000" RPM Range: 2400-6400 Grind Number: 288H Blower Cam Intake Duration (gross): 288 Exhaust Duration (gross): 288 Intake Duration (.050): 232 Exhaust Duration (.050): 232 Intake Valve Lift*: .480" Exhaust Valve Lift*: .480" Lobe Separation: 112 Intake Valve Lash: .000" Exhaust Valve Lash: .000" RPM Range: 2600-6500 Grind Number: 288-96H Intake Duration (gross): 288 Exhaust Duration (gross): 296 Intake Duration (.050): 232 Exhaust Duration (.050): 238 Intake Valve Lift*: .516" Exhaust Valve Lift*: .524" Lobe Separation: 110 Intake Valve Lash: .000" Exhaust Valve Lash: .000" RPM Range: 3000-7000
got me a hyd roller, now I need some lifters, guess ill try the chevy. .530-.536--230'-236' who has forged pistons?
As far as the forged pistons: Diamond, Egge and I think Ross... may be more but may be of questionable quality. Where did you buy the roller cam? TA? Erik
I'm sure you can get the lifters from TA, but you'll have to call becuase last time I checked they weren't on the website.