Camshaft help for my 87 irocz 350
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Car: 87 Chevy Camaro Iroc-z
Engine: 350tpi
Transmission: 700r4
Axle/Gears: 3:27 POSI
Camshaft help for my 87 irocz 350
Hey i need some help am looking to swap the factory cam out of my 350 tpi and get a good high performance one that will work well with the car,the stuff i have done to the car is full exhaust and headers,and reworked ported heads,high stall torque converter,bigger injectors/adjtble regulator.Many people told me i should go with the lt4 hotcam,but i feel its way to much lift @ 525,am looking for something that will give me a noticable loopy rough idle in my 350 and something that will work well throughout the rpm's ,thanks alot help would be greatly appreciated
#2
The LT4 cam is much too big for the engine you have right now. I have it in my TPI, but I have the heads and ported intake, etc to put it to somewhat good use. I would stay around 212-216 on the intake and 220-224 on the exhaust, especially if you can not do your own tuning.
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Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
I put a 350 cam in my 305, I love it! It sounds awsome with a nice exhaust. All my #'s are in my Sig. Dont forget new springs....and you might as well change the valves seals too while your in there.
Last edited by tenpin842; 10-16-2006 at 08:40 PM.
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Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
check out thunder racings' cam choices for us TPI guys. very good cams.
Thunder Racing - Camshafts for your 1982-1992 F-Body
anything from the 300 to the 305 grinds would be good for your application![nod](https://www.thirdgen.org/forums/images/smilies/nod.gif)
if you want to stay away from computer tuning check out the crane cams on the bottom of the page. only the first choce from the comp section is with stock tuning.
Thunder Racing - Camshafts for your 1982-1992 F-Body
anything from the 300 to the 305 grinds would be good for your application
![nod](https://www.thirdgen.org/forums/images/smilies/nod.gif)
if you want to stay away from computer tuning check out the crane cams on the bottom of the page. only the first choce from the comp section is with stock tuning.
Last edited by 3rdgenZ; 10-16-2006 at 01:34 PM.
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Check out chevy performance parts zz4 cam(same cam in the zz4 crate motor with 355hp), can be used without computer tuning, but tuning would really help achieve it's full potential. Good idle with a slight lope and great power throughout the rpm band. You can pick up a take out cam for around $130 if you look around.
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Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
I have the ZZ4 and she fired right up in my 353 ....stilll useing the 305 prom LOL . But I have since changed to a vette bin for the time being .
there are better choices for cams but it's not that bad as far as they go at this level
there are better choices for cams but it's not that bad as far as they go at this level
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#9
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Car: 87 Chevy Camaro Iroc-z
Engine: 350tpi
Transmission: 700r4
Axle/Gears: 3:27 POSI
need some help finally choose a cam/need help with which roller rockers to get
Hey i finally choose the cam and i called the people up at thunder racing and i got a great cam for my tpi motor which is the comp cams extreme roller camshaft that works well with tpi computer controlled vehicles ,now i need help because am undecided on what ratio rocker arms to get 1.5 or 1.6,and does anyone no if the camshaft kits from thunder racing come with lifters and timing chain?help would be greatly appreciated thanks
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Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
Hey i finally choose the cam and i called the people up at thunder racing and i got a great cam for my tpi motor which is the comp cams extreme roller camshaft that works well with tpi computer controlled vehicles ,now i need help because am undecided on what ratio rocker arms to get 1.5 or 1.6,and does anyone no if the camshaft kits from thunder racing come with lifters and timing chain?help would be greatly appreciated thanks
it depends on the lift of the cam, and what your head can take.
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Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
the cam will not come with lifters. Just use your stock ones. Also unless its some sort of kit, it will not come with a timing chain. I researched for about a month before I made my decission.....speciallt sence I have a 305. MAKE SURE YOU GET THE MATCHING SPRINGS! That is a must. You cant use your stock ones....well you can but you might be taking it back apart after awhile.
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Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
not to jump too far off the subject but tenpin, what kind of numbers are you running in that car. looks nice.
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Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
Never had it to the track, I'm having transmission problems. Its not shifting 2-3 at WOT. So that will give me something to work on in the winter. On the Dyno, I never got a print out when they tuned my ECM. They said it was 211hp at the rear wheels. They did all the pulls in 2nd gear. But it was on a mustang dyno which they said reads 15% lower then the more common dyno machines around. I dont know much about Dyno machines, but it sure feels like more then 211hp. I know my car stock was only 190hp at the motor. The bottom end has 100,000 miles on it. It runs great for a 305....so as far as realistic #'s I really dont know. But you can see everything I've done to it so far. I'll take it to the track sometime next year. So I will know what I will run in the 1/4 mile in 2007. I will also have it on the dyno machine again for a re-tune in the spring...theres a couple bugs they need to work out for me.
#14
If you have the money and valve to piston clearence availible I would go with a pair of 1.6 roller rockers. If not at least go with a pair of 1.5 roller tipped rockers and new springs. New springs are inexpensive. used roller rockers are also cheap on ebay and the classifieds.
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Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
I only paid $100.00 for my set of springs. I found out they dont come with new keepers LOL!!! I just used my stock ones.
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