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post #1 of 16 Old 03-11-2009, 02:37 PM Thread Starter
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302 single.

Hey guys,
im in the process of picking a turbo.
The engine is a rebuilt 1971 302 block, hipereutectic 0.30" over pistons, mild cam and the rest is stock. Gasket match port and polished 351W heads.
Im not trying something insane. My redline will be left @ 5,500rpms.
It is a street cruiser, not a dragstrip demon. It will see races once in a while but not for the main thing.

Im thinking a T4 .81/.96 from Compturbos. Is this a good size for a 302 single setup? Has anyone done a 302 from this year? im going blowthrough carb as well.
Any advice?
Thanks

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post #2 of 16 Old 03-11-2009, 03:29 PM
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I'd use a Turbonetics 62-1 with .81 a/r for that set-up.


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post #3 of 16 Old 03-11-2009, 04:01 PM Thread Starter
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Originally Posted by r.barn View Post
I'd use a Turbonetics 62-1 with .81 a/r for that set-up.
Cool, What year is your motor?
When does your turbo starts seeing boost?
How is your setup?
Sorry man, i just have a lot of questions
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post #4 of 16 Old 03-11-2009, 06:40 PM
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Originally Posted by jackdaniels View Post
Cool, What year is your motor?
When does your turbo starts seeing boost?
How is your setup?
Sorry man, i just have a lot of questions
i run that exact turbo and love it..

bone stock 89 roller motor, full boost (10 psi) by 3200 or so..

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post #5 of 16 Old 03-11-2009, 07:36 PM
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hey i got and old cartec 63mm with a d.f.i stck bottomend pushing 440rwh 3 speed street monster
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post #6 of 16 Old 03-11-2009, 07:36 PM Thread Starter
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i run that exact turbo and love it..

bone stock 89 roller motor, full boost (10 psi) by 3200 or so..
Hoo Cool!!!
Thats kind of what i thought it would start giving some juice..
Now, what cam do you have on your motor? specs?
And how many ponies are you gettn???
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post #7 of 16 Old 03-11-2009, 07:53 PM
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Originally Posted by jackdaniels View Post
Hoo Cool!!!
Thats kind of what i thought it would start giving some juice..
Now, what cam do you have on your motor? specs?
And how many ponies are you gettn???


stock cam, no clue on specs of the 89 roller cam off the top of my head lol

no clue, never had it on the dyno, but IF I had to guess I would say about 425 or so based on trap speed/weight of car.

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post #8 of 16 Old 03-11-2009, 07:57 PM
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Originally Posted by jackdaniels View Post
Cool, What year is your motor?
When does your turbo starts seeing boost?
How is your setup?
Sorry man, i just have a lot of questions
Bout to put same turbo on my 5 liter Tahoe.
Its a good street turbo for a 5.0L engine not looking to make over 500rwhp.

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post #9 of 16 Old 03-11-2009, 08:13 PM Thread Starter
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Originally Posted by NJMatt50 View Post
hey i got and old cartec 63mm with a d.f.i stck bottomend pushing 440rwh 3 speed street monster
stock pistons as well?
im going with hipereutectic and read somewhere to go with moly rings. Any other advise .
I did my 351W heads gasket match port & polish. That should give me some good flow. My concern is my cam. I think is too big for this application.
What is it that gets hurt with turbo + big cam?
Thanks everyone for your advise.
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post #10 of 16 Old 03-11-2009, 08:16 PM Thread Starter
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Originally Posted by r.barn View Post
Bout to put same turbo on my 5 liter Tahoe.
Its a good street turbo for a 5.0L engine not looking to make over 500rwhp.
I was having a word with this guy named Sonny Diaz, the guy ran a top fuel dragster and won the championship like in eighty something, he like owns the team "over the hill gang". We where talking about motors with boost and everything. He was even giving me a couple of words of advise. I was explaining my intentions with this small 302. He said i would end up with like 560hps or little bit more on bhp. I was ....
That would be awesome!!!!

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post #11 of 16 Old 03-11-2009, 08:21 PM Thread Starter
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Originally Posted by red89coupe View Post
stock cam, no clue on specs of the 89 roller cam off the top of my head lol

no clue, never had it on the dyno, but IF I had to guess I would say about 425 or so based on trap speed/weight of car.
Thats cool, you should get it dynoed some time!!
Times on the 1/4?

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post #12 of 16 Old 03-11-2009, 08:24 PM
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Originally Posted by jackdaniels View Post
stock pistons as well?
im going with hipereutectic and read somewhere to go with moly rings. Any other advise .
I did my 351W heads gasket match port & polish. That should give me some good flow. My concern is my cam. I think is too big for this application.
What is it that gets hurt with turbo + big cam?
Thanks everyone for your advise.
I would go forged pistons. NOT that it cant be done on hypers, just more room for error with the forged.

NEVER do business with Sam Rivera AKA Sam Wilson.
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post #13 of 16 Old 03-11-2009, 08:30 PM
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Originally Posted by jackdaniels View Post
Thats cool, you should get it dynoed some time!!
Times on the 1/4?
I want to toss it on the dyno sometime real soon.. weather needs to break lol

I have yet to make a good hooking/clean pass but went 12.1 @ 120 with a 1.9 60 foot. spinning like crazy on small 225/50/15 DRs!! went to a full slick cut a 1.63 60 foot dead hooked but slick walk on the top end got me and I lifted lol first pass on slicks.....I need new shorts lol

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post #14 of 16 Old 03-11-2009, 08:32 PM
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What are the specs of your cam Jack?
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post #15 of 16 Old 03-11-2009, 10:35 PM Thread Starter
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What are the specs of your cam Jack?
if im not mistaken, i have the isky mega lift. [email protected] .517int/.517exh.
If not this, pretty close to this.

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post #16 of 16 Old 03-23-2009, 09:12 PM
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I would get forged pistons over a cam if I were you but an F cam is magic in a turbo motor
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