TAFT website?

[glhsken]

Good stuff Pat, most impressive is the torque with the s2 happened BEFORE the TBI cam

[crazy1eye]

Quote:

Originally Posted by nkuehn Patrick, Were you able to play with the cam timing any? I suspect the S60 will be similar in performance to the S2 but durability is the big issue.

Yes I did play with the cam timing. When I installed the cam with the Fidanza cam sprocket, it was visibly off, meaning, with the timing mark on the flywheel at 0 & the cam installed straight up, I had to advance the cam 8* to have the cam aligned straight up with the engine, everything aligned. I test drove the car like this & by the seat of the pants dyno, it was blah at the top of the rpm range so I adjusted the cam sprocket back to 0*(retarding the cam to give me better top end) & sure enough, it felt better. With it like this at the dyno today, after 3 pulls of adjusting just the fuel psi & timing the whp went from 287 to 297, then I retarded the cam 4*(from 0*) & it then pulled 301whp. We also tried advancing the cam 2*(from 0*) & it pulled 297whp & lost 10ft/lbs.

Unfortunately, I did not have the Fidanza adj. cam sprocket with the S2 cam, although I did have the old style MP cam sprocket & we did try retarding the cam 4* which increased the whp from 313 to 323, BUT the boost also jumped form 21 to 24psi, so I figured it wasn't an improvement & put it back to where I had originally centerlined it(114*).

[crazy1eye]

Quote:

Originally Posted by glhsken Good stuff Pat, most impressive is the torque with the s2 happened BEFORE the TBI cam

Thanks!... Maybe those tbi cams are better suited for 2.5L or, maybe it's just my set-up. My head does flow well at higher lift, thats why I'm going to try the S60 cam, which is what I use to run with the old set-up.

Considering the tbi cam has .040" less lift on the intake & .020" less on the exhaust, it ain't bad for the $$.

Now, if only there was someone willing to let me try a prototype high lift roller

[nkuehn]

Pat,

A fellow canuck will be handling the duties as in the past.

[crazy1eye]

Quote:

Originally Posted by nkuehn Pat, A fellow canuck will be handling the duties as in the past.

Ya, I'd heard that the cams were made here, in Ontario I believe. Does that mean one could be shipped to me, easier & cheaper for me to test

[DakotaKid]

1989 T1 cam, 32 psi 337 whp and 404 wtrq. (Stock head)
I had cam advanced 6*, which is really only 2* because of the year of my engine.

Another car
1989 T1 cam, 26 psi, ported head.
Gained 21 whp by advancing cam 4* (a little might be a cooler engine)

Both 2.2

-Bryan

[Brian Putman]

Quote:

Originally Posted by nkuehn Ken, Ken, Ken You are correct! Maybe I should shut up...... I get in trouble when I do speak. I can say that although we have been working for some time to find an alternate for the 88 EFI cam we just haven't been content with the specs considering that the factory roller works pretty damn good for most applications with few modifications. The S1 still works great for auto cars though. We are closer to introducing a cam that will get rid of the urge for people to go out an d buy those short lived slider high lift cams, if that helps......

The S3 cam seems to work well with an auto and high stall converter.I just witnessed Kedavis' 3000+lb Daytona run a 7.95@92mph with 26psi in 90+degree heat last night!! We are still learning the combo and have went quicker and faster every trip to the track. The +40's couldn't seem to safely support over 26 psi as EGT's were climbing to high after that point. Kevin is taking care of that problem with some 72lb injectors. He said his car felt much stronger when he accidentally hit 30psi for a few seconds.

[DakotaKid]

Quote:

Originally Posted by Brian Putman The S3 cam seems to work well with an auto and high stall converter.I just witnessed Kedavis' 3000+lb Daytona run a 7.95@92mph with 26psi in 90+degree heat last night!! We are still learning the combo and have went quicker and faster every trip to the track. The +40's couldn't seem to safely support over 26 psi as EGT's were climbing to high after that point. Kevin is taking care of that problem with some 72lb injectors. He said his car felt much stronger when he accidentally hit 30psi for a few seconds.

hmmm, I have run 32-34 psi with +40's. (Relentless Calibration)
You might have too much fuel?

-Bryan

[Brian Putman]

Quote:

Originally Posted by TrboVan hmmm, I have run 32-34 psi with +40's. (Relentless Calibration) You might have too much fuel? -Bryan

I'm curious, with what Head (valves) , turbo specs, exhaust specs including down pipe, and what camshaft?

All I know is, Kevin has the SDS maxed out on the pulse width once he hits around 24psi. At 24psi EGT's were at 1480 to 1500. AT 26psi the EGT's were up to around 1600. I'm sure Kevin could tell you more, it's his car.

[GLHandGTS]

I have an adjustable cam sprocket but have never messed with it.

I see everyone talking about how they installed the cam, at what degree, etc. Are you guys talking about the indicator marks on the sprocket themselves being set at 0?

[DakotaKid]

Quote:

Originally Posted by Brian Putman I'm curious, with what Head (valves) , turbo specs, exhaust specs including down pipe, and what camshaft? All I know is, Kevin has the SDS maxed out on the pulse width once he hits around 24psi. At 24psi EGT's were at 1480 to 1500. AT 26psi the EGT's were up to around 1600. I'm sure Kevin could tell you more, it's his car.

Stock head, stock valves
(I could be pushing less air? but I did put down 337 whp with those injectors)
My EGTs were 1400.
Turbo is a T3/T4, T04E Compressor Housing with T04E 50trim Wheel and .63 A/R T3 Turbine Housing with Stage III Wheel.
Exhaust is a stock swingvalve modified to 3" with 3" down pipe about 18" long.
Cam is a 1989 Turbo I roller cam.

-Bryan

[gdonovan]

Quote:

Originally Posted by TrboVan Stock head, stock valves (I could be pushing less air? but I did put down 337 whp with those injectors) -Bryan

Bill Baker cranked out 344 to the wheels on the dyno, Steve Menegon makes an estimated 400+ at full boost (3100 lbs car running 121 mph)

[crazy1eye]

Quote:

Originally Posted by GLHandGTS I have an adjustable cam sprocket but have never messed with it. I see everyone talking about how they installed the cam, at what degree, etc. Are you guys talking about the indicator marks on the sprocket themselves being set at 0?

Yes, sort of. Technically, the cam installed straight up or at 0* with an adj sprocket should be in at it's installed centerline, but for ex; the super 60 cam, I installed 3 in my previous set-up, all went in different, only 1 went in at it's installed centerline, 112*

So, yes, I would mess with it, of course the best way is on the dyno, but you can go by the seat of your pants. Grab a couple wrenches & go to a nice deserted road & try moving it a little each way. Each line is 2*, so try 4* at a time, advancing the cam forward or clock-wise Will give you more low end, where is retarding it will give you more top end.

***Sorry if this thread has gotten a little off topic.***

[kedavis]

Quote:

Originally Posted by gdonovan Bill Baker cranked out 344 to the wheels on the dyno, Steve Menegon makes an estimated 400+ at full boost (3100 lbs car running 121 mph)

are they doing that with 52s just curious because i havent went lean just want to make sure with the 72s.going to have to remap my whole setup.i data log my runs with the lm1 wideband afrs are in the 11.8:1 any higher and egts get high and i want to last until winter.

[kedavis]

Quote:

Originally Posted by TrboVan hmmm, I have run 32-34 psi with +40's. (Relentless Calibration) You might have too much fuel? -Bryan

thats to close for comfort,how many passes with that combo.