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 Post subject: 302 question
PostPosted: Sun May 30, 2010 1:27 am 
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60ft
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Location: south jersey
on a sbf forum, i read that a bone stock 302 is capable of withstanding 12psi of boost.. is that plausible?

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 Post subject: Re: 302 question
PostPosted: Fri Jul 30, 2010 1:03 pm 
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330ft

Joined: Thu Feb 28, 2008 9:45 am
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93F150 wrote:
on a sbf forum, i read that a bone stock 302 is capable of withstanding 12psi of boost.. is that plausible?



Boost is just a measure of restriction and means nothing really. Figure 500hp on a 302 block is going to be the limit. How ever much boost it takes to get you around that is where I would stop (if you want it to live).

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 Post subject: Re: 302 question
PostPosted: Thu Jan 20, 2011 8:34 pm 
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Renting Helmet

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stock 302 block with factory forged pistons (pre 94+) with nothing done to it will take 14-15lbs or more. but the guy above is right 500HP is the limit once you are around 450+WHP its a waiting game.


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 Post subject: Re: 302 question
PostPosted: Tue Mar 08, 2011 12:31 am 
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Staged

Joined: Fri Mar 21, 2008 9:05 pm
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Location: STATEN ISLAND
wazslow wrote:
93F150 wrote:
on a sbf forum, i read that a bone stock 302 is capable of withstanding 12psi of boost.. is that plausible?



Boost is just a measure of restriction and means nothing really. Figure 500hp on a 302 block is going to be the limit. How ever much boost it takes to get you around that is where I would stop (if you want it to live).



ITS HAS BEEN PROVEN THAT A STOCK BOTTOM END 302 HAS MADE 815RWP WITH A 76MM TURBO,IT STAYED TOGETHER FOR 2 YEARS BEFORE IT POPPED...

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 Post subject: Re: 302 question
PostPosted: Tue Mar 08, 2011 12:32 am 
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Staged

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DOUBLE POST

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 Post subject: Re: 302 question
PostPosted: Tue Mar 08, 2011 8:25 am 
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Quarter mile
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yea but how much did he run it and how long was it hurt before it let go ?
internet is full of pictures of guys who took perfectly good running 302's apart to find the block split or a main saddle broken out of the block

buddy had a nitous 302 in the 9's that we wanted to step up and just change pistons , imagine our surprise when we pulled off the timing cover and bell housing and found the block split in half , ran fine though
johns right , after 500 hp its just a waiting game

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 Post subject: Re: 302 question
PostPosted: Tue Mar 08, 2011 11:20 am 
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d2racer wrote:
yea but how much did he run it and how long was it hurt before it let go ?
internet is full of pictures of guys who took perfectly good running 302's apart to find the block split or a main saddle broken out of the block

buddy had a nitous 302 in the 9's that we wanted to step up and just change pistons , imagine our surprise when we pulled off the timing cover and bell housing and found the block split in half , ran fine though
johns right , after 500 hp its just a waiting game



he ran raced the car for 2 years,it even ran several 275 races.....it was built n tuned by HED out in north carolina ... i also have 2 friends that have stock block 302's in their car one had a procharger p1sc setup with a stick n made 589rwhp n has been raced n beat for the last 8 years,the other has also has a stock block with a S-trim made 550ish n hasnt broken it yet... i also know several people with stock bottom end 302's make serious power with turbo setups....i am building a stock bottom end turbo car now,so once i get it on the dyno i will ost the dyno numbers..

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