Gear and supercharger question

Yan88gt · 07-18-2001, 03:52 PM

Hi! I have done the cobra mass-air conversion and i wan't to buy a 9psi powerdyne. Can i keep my underdrive pulley, wich smog pump eliminator kit will fit my car (i've heard that it's not all kit that fit).
Another question. After the supercharger i will approximately have 320-330 rwhp and i go to the strip on street tire. Will i have to **** the fourth gear with a 3.27. My other mods are : stock ported head and intake, 1.7 roller rocker, exhaust and some bolt-on.

TM88GT · 07-18-2001, 05:47 PM

Quote:

Originally posted by Yan88gt:
Hi! I have done the cobra mass-air conversion and i wan't to buy a 9psi powerdyne. Can i keep my underdrive pulley

You can, but the smaller crank pulley will slow down the blower pulley. That means less boost.

Quote:

wich smog pump eliminator kit will fit my car (i've heard that it's not all kit that fit).

Not sure about that.

Quote:

Another question. After the supercharger i will approximately have 320-330 rwhp and i go to the strip on street tire. Will i have to **** the fourth gear with a 3.27. My other mods are : stock ported head and intake, 1.7 roller rocker, exhaust and some bolt-on.

Depending on your tire size, you'll probably be in third at the end of the 1/4. I'd get some 3.73's, and get into boost quicker.

------------------
TM88GT

[This message has been edited by TM88GT (edited 07-18-2001).]

Yan88gt · 07-18-2001, 07:31 PM

I'm racing on street tire, i think that the supercharger and my actual combo will give lots of power and torque.I would not like to see my 0-60 foot with a 3.73 even with the world's best driver. What would be the best for my application. I would like to launch hard in the street and be able to follow those LS1.( they always beat me on the launch in the street)I think that i'm a not so bad driver, my best 0-60 is 2.03 with a 3.55.

07-18-2001, 03:52 PM	#1
Yan88gt Registered Member Join Date: Jun 2001 Location: Quebec canada Posts: 92	Gear and supercharger question Hi! I have done the cobra mass-air conversion and i wan't to buy a 9psi powerdyne. Can i keep my underdrive pulley, wich smog pump eliminator kit will fit my car (i've heard that it's not all kit that fit). Another question. After the supercharger i will approximately have 320-330 rwhp and i go to the strip on street tire. Will i have to **** the fourth gear with a 3.27. My other mods are : stock ported head and intake, 1.7 roller rocker, exhaust and some bolt-on.

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07-18-2001, 07:31 PM	#3
Yan88gt Registered Member Join Date: Jun 2001 Location: Quebec canada Posts: 92	I'm racing on street tire, i think that the supercharger and my actual combo will give lots of power and torque.I would not like to see my 0-60 foot with a 3.73 even with the world's best driver. What would be the best for my application. I would like to launch hard in the street and be able to follow those LS1.( they always beat me on the launch in the street)I think that i'm a not so bad driver, my best 0-60 is 2.03 with a 3.55.