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fatmr2
Forums Junkie

Location:
sydney
Registered:
November 2003

Re: 20V Blacktop vs GZE Turbo

Fri, 18 March 2005 12:25

screech wrote on Fri, 18 March 2005 23:01

you gotta drop the compression real low, about 7:1. this can be done with decompression forged pistons and a layered stainless 1.5 - 2mm head gasket cause 15- 20 psi is a fair amount of boost. while you at it, forged rods and a blueprinted crank and block to minimise clearances. bla bla bla the dollars roll on!

if you do it, it should make around 300 - 350 rw Hp using something like a ball bering GT 30 from GCG.

Im not sure where you pulled that compression figure from but i would have to say you are wrong.
I have done all the things you have said and i run 20psi at a compression of 8:1. Even that is too low. You would be best to go for a compression of about 8.3:1
And as for that turbo.......i would say a little to big for a quick street car. You need something a little smaller.
With the set up that you have mentioned(compression/turbo) the car would drive like an absolute pig till you hit full boost which would be around the 5-6k mark!

If i may, i would sugest an s15 turbo and a compression of about 8.3:1. I ran a set up like that and was able to get 177kw atw. It had good response and little lag. A very good street car with lots of power.

Good luck with it all.

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