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Old 01-04-2014, 10:37 PM   #1
brent flynn
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Default Re: It's official :-)

Yeah, i pretty much gonna start with bias plys, so i figured the 56s would be the best way to go... Doubt that i will have radials in April... luckily i have ratios to choose from... i figure this engine will need to see around 6500 at traps, to get any kind of ET out of it...
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Old 01-04-2014, 11:16 PM   #2
69Cobra
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Default Re: It's official :-)

First off, Congrats on making it official! I also made it official last year when I got my number its a pretty cool thing to make a dream come true. I'm hoping to be out sometime this year as well.

I'm just curious (as I know nothing about Pontiac's) with you guys talking gear ratio's and all with a 3.75 stroke engine and hoping for a 6500 trap RPM's that just sounds kind of low to me. I'm guessing there is a big restriction on the induction side to not let it RPM any more than that?
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Old 01-05-2014, 12:26 AM   #3
brent flynn
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Default Re: It's official :-)

Quote:
Originally Posted by 69Cobra View Post
First off, Congrats on making it official! I also made it official last year when I got my number its a pretty cool thing to make a dream come true. I'm hoping to be out sometime this year as well.

I'm just curious (as I know nothing about Pontiac's) with you guys talking gear ratio's and all with a 3.75 stroke engine and hoping for a 6500 trap RPM's that just sounds kind of low to me. I'm guessing there is a big restriction on the induction side to not let it RPM any more than that?
Thanks Kris! The big restriction is on my wallet...hehe... I'd say that the engine will only do what the cam/springs/valvetrain will allow. Im starting off pretty conservative, and i doubt my stuff will want to go any higher... My deal will probably like 6000-6200 shifts(maybe) and string it out a little higher, through the traps. Pontiacs arent usally real high winders, like a 350 chev would be...parts are somewhat heavier, too. Pontiac heads seem to fall off earlier than a sbc, but you can fool it , with enough duration , valvespring pressure, and plenty of gear and converter. But, it doesnt always work...hehe
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