superirocz

My 89 iroc with 350 TFW heads unported, very mild cam, 1.5rr, super ram, 52tb, 24#svo, LT hedman headers and 3.5 mufflex made 320hp390ftlbs at the wheel. The engine has 40k on it and has gone 12.7@111mph 3years ago and still does today. You can see the cam puke at 5000rpm i need a better cam but still very impressed with 390 torque at the wheel, makes for a great street car. This car has the factory chip in it also.

Yellowknifer

Burn yourself a chip and get some traction and you should be seeing 11's with relative ease...

AutoRoc

Nice numbers. Do we assume i still has a stock TPI intake manifold on it?? It would be cool to see what an aftermarket/higher rpm intake would do. HP would probably match your TQ numbers

superirocz

It has the accel intake and super ram box. What cam should i get? I have 3:73 gears and a 5 speed.

Yellowknifer

TPI is a good setup... the torque numbers are usually a little higher for TPI setups... TPI's need big time traction though which means investing a lot in suspension and tires... which unfortunately is not usually something people do enough of it seems...

[This message has been edited by Yellowknifer (edited August 06, 2002).]

Yellowknifer

Lingenfelter has some cams for superram setups... might want to check what he offers out... LT4 Hotcam would probably work ok too...

RedIrocZ-28

Dude, burn a chip for yourself, I ran a 14.42 @ 96.1 mph about 3 weeks ago and did nothing other than burn a new chip with a factory .bin file called the infamous ARAP.bin. I netted a .7 drop in ET and 3+ mph 13.732 @ 99.30.

Say hello to 11's if you'd like with a new chip.

superirocz

Who can burn me a GOOD chip? This shop i dynoed my car is great for mustangs and burning chips but won't touch a gm computer. My air fuel ratio was dead on. Will a burnt chip realy do anything for my car?

AutoRoc

An LT4 Hotcam isn't a bad place to start out as far as a cam selection goes. You get 218/228 degrees of duration and .525" of lift with 1.6 rocker arms...If you use stock rocker arms it's in the .490 range

It's not HUGE but it should make ok power up in a powerband a little higher than a stock cam.

A lot of people say the Hotcam is tiny. Those guys go with something like a Comp Cam 306 cam....230/244 duration and .540" of lift...it pulls hard up top

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Denny Villemure
1989 Camaro IROC-Z Convertible, 305 TPI, 2.73 Gear, Flowmaster 2 chamber. 15.60 on motor, 14.20 on a 75 shot from NX. Woo hoo!
www.denny.cz28.com

GMTech

What do you consider a "mild" cam? I'm running 13.5 @ 103.7 w/ a ZZ4 and ported stock TPI pieces, with everything else being almost identical to yours.

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Webmaster:SETHIRDGEN
GM Tech
ASE Master Auto Technician + L1
1987 Trans Am: 357ci
Ported TFS heads, ZZ4 cam, headers & exhuast and other go fast goodies
13.53 @ 103.77

Markolc

I have an LPE 219/219 cam for sale if you want it. It's the perfect match for the superram, and makes power to just over 5700 RPM.

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1987 Flame Metallic Red IROC-Z Camaro. LT1 motor installed. http://home.attbi.com/~markolc

Jim85IROC

That cam is far-and-away the most popular cam for Super Ram owners on the Corvette Forum, and some of the guys are making a ton of horsepower with their combos.



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superirocz

My cam is 470 490 lift forget the duration. Where is that corvette forum? I think i might go with that LPE cam. Markolc how much?

Markolc

On 1.6 rockers, the LPE cam is .560/.560 lift. You may have to replace your valvesprings. This cam, with AFR heads and superram combo is a proven low 12sec/high 11second combo! I actually passed emmissions with this cam too :-). My cam is used with unknown mileage (I took it out of the motor myself after using it for 500 miles just for the emmissions test), but I can tell you it's in great shape. I'm not even sure what to ask for it. New, LPE wants $315 plus shipping...I think I'd sell it for $150 + shipping. The only thing you'll have to do to the cam is cut the dowel pin slightly shorter (I used it in an LT1 so the dowel pin needed to be longer to drive the opti-sprak).

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1987 Flame Metallic Red IROC-Z Camaro. LT1 motor installed. http://home.attbi.com/~markolc

[This message has been edited by Markolc (edited August 07, 2002).]

Kevin91Z

Those are cool numbers, but I'm surprised you're getting 3 more MPH than me with the same HP. It must be the RPM thing, you're getting more with the SuperRam vs my peak at 4800 with long tube runners.

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1991 Camaro Z28
350 L98 w/ T56 (originally 305 LB9 w/ T5)
318 RWHP, 419 RWTQ
12.803 @ 108.50 MPH (1.932 60')
Member: SoCal F-Bodies
ThirdGen 4-Life!