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Discussion Starter #1
I plan on putting a supercharger on this upcoming year. I was reading that the stock internals only hold up to 500hp and to not go more then 8 lbs of boost. I want to put heads and a cam on it. I was looking into a 426 stroker but that's more money I don't want to spend so I've up to just get forged internals. What would be a ball park figure of have them installed. Thanks for any input
 

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I have 20K miles on stock internals making 570 bhp @ 8 lbs. and no problems. Many others making as much or more on stock internals. Perhaps you were referring to rwhp and not bhp?
 

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I think it was rwhp. I also heard the rear axles hold up to 600
 

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The reality is there is no specific set in stone answer. We all have opinions and even when people provide real world data..you will have experts on these boards telling u otherwise. When u hotrod crap is going to break eventually.

As far as boost. .outside that max number ur talking about is the tune!! Very important. I have been running over 10lbs for quite a while on my 5.7 with probably a couple hundred passes at the drag strip. Been great so far but reality is it will more than likely break at some point.

I honestly think 8lbs without changing ur internals at all with a good tune will give u years of enjoyment. ..on the axles..well a lot of factors involved..auto or standard..drag radials or slick or street tires...track prep and on and on.

Good luck with ur decision

Sent from AutoGuide.com Free App
 

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Discussion Starter #5
Yea I figured as much. I'm just checking oneverything I might run into
 

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I know some people running 600whp with nothing more than forged pistons as the motor comes from the factory with a billet crank and forged rods. Shouldn't be much for that. If you're curious then PM Vinny32 and tell him I sent you.
 

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I think it was rwhp. I also heard the rear axles hold up to 600
As said, the tune is critical. I have an off-the-shelf tune that came from Vortech designed for 8 psi. It has very safe parameters with a lot of head room. A custom tune can get more out of set-up provided the tuner knows what they are doing. You push the envelope too much and, Kaboom, you're on your way to a new stroker motor.

Mine is an '09 M6. I broke an axle on drag radials when I was still N/A with just the basic bolt-ons. Axle upgrades are a must if you're going to launch it hard with sticky tires.
 

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Discussion Starter #8
Thanks for all the input. I'll stick with the s/c for now Ive never been to the track just messed around on the street.
 

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Discussion Starter #10
I understand the whole breaking thing when you mod I guess I'm asking what the next weak link will be.
 

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Discussion Starter #11
Now what about throttle body's I was thinking about getting a 87 mm before I do the sc is it worth it to put one on I've read mixed results
 
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