Centrifugal, with wastegates & over drive pulley

[JohnG]

I'm debating rather to do mine or not before the supercharger install. Some are telling me I don't need them at all

I'm not worried that anything will happen at my power level, but I'd rather just get them done for piece of mind. Honestly, wish I would have done it before. Now I have to take it all off to get to the timing cover.

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[Pincushin3819]

I'm glad yall brought up the OPG's & stuff, that was something that I was wondering about. That was also one of the reasons I wanted to do the ATI pulley to keep the crank snout from vibration. I read that it was a better choice for FI cars over the stock, so at a minimum I wanted to do that while keeping the car under 12-15 lbs of boost.

 

[christian]

What PSI are you seeing John?

 

[Pincushin3819]

3.6 Pulley with stock exhaust & air box should be around 12.5 from what I've seen on dyno. Do headers drop it 1-1.5lbs & intakes add around 1lb like on the ls motors?

 

[Barrel]

What size pulley ?

4.5" pulley.

 

[turbo50]

3.6 Pulley with stock exhaust & air box should be around 12.5 from what I've seen on dyno. Do headers drop it 1-1.5lbs & intakes add around 1lb like on the ls motors?

I was seeing 11lbs at 7500

 

[Pincushin3819]

I was seeing 11lbs at 7500

That's even better! Do you have headers or cats deleted?

 

[turbo50]

That's even better! Do you have headers or cats deleted?

Sw with 3 inch connects

 

[JohnG]

What PSI are you seeing John?

3.6 Pulley with stock exhaust & air box should be around 12.5 from what I've seen on dyno. Do headers drop it 1-1.5lbs & intakes add around 1lb like on the ls motors?

I don't run a boost gauge and the dyno I went on didn't measure. I'm betting 12.5-13 is a good guess given the stock exhaust. I'm having cat deletes installed tomorrow. I need to buy a boost gauge. May just order one today.

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