HLN A55

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Sounds like a whole lot more... Wouldn't you need comparison data from when the car was stock? What is there were other mods made like a cam, heads, intake?

IMHO.. I'd say no considering the amount of data and variables involved.
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Riley P

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Get a blow off valve to keep it at a set maximum....or is that a waste gate? I have no idea. I'm sure you will find this post very helpful.
 

not2melo

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Can you calculate the amount of boost?

What variables do you need?

Supercharger? pulley size? engine compression? Engine displacement?

You can change your pulley size to a smaller unit if needed and that will increase your overall boost on the car
depending on the SC that you have. Some do have limits on the boost like your head gaskets do also.
That being said, you just cannot put a super small pulley without taking into consideration other things.

Do you know what the original pulley is on the SC now?
Is it a Maggie unit?

You will be pumping more air, so you will need more fuel to go with that air to get the right AFR.
Also you would most likely need a tweek to the tune of the car or you could go lean, which is not a good thing!

On my past blown cars I just swapped to a smaller pulley and had a re-tune which adjusted the timing and
the fuel to stop getting any KR (knock retard) by the PCM.
The KR on GM cars when it kicks in has a very slow recovery time which really kills off the timing and performance
unless the tuner adjusts the recovery time to a smaller cycle.
 
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not2melo

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Beancounter, do you need some more torque out of your car, I heard Manny say it had some good pep!
You can also check out "Pulley Boys' site or give them a call and see what they suggest.
 

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