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coupetx
tinkerer


Joined: 09 Apr 2003
Posts: 186

PostPosted: Mon May 05, 2003 9:17 pm    Post subject: what turbo Reply with quote

i have a g180 dohc, i'm just replacing and decompressing the bottom end and i haven't desided on what head work im doing, but i'm wondering what turbo to run, i want good range of power with out it costing a shit load, by the way its efi
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hypaTG
backyard mechanic


Joined: 15 Oct 2002
Posts: 524

PostPosted: Mon May 05, 2003 9:58 pm    Post subject: Re: what turbo Reply with quote

t28 and t3 seems pretty popular. as for head work, crow cams makes a turbo cam 3000 - 7000rpm, so either use that or a standard cam, long duration cams are unsuitable. Porting the head and throttle body should give big gains aswell. I think porting the head on a turbo engine is meant to give up to 40% more flow than stock. on a n/a engine it is 20%.
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tx1975
tinkerer


Joined: 21 May 2002
Posts: 321

PostPosted: Mon May 05, 2003 10:37 pm    Post subject: Re: what turbo Reply with quote

i read a whole article in hot 4s how porting was the very last thing u do to a turbo car as the power gain isnt that great.
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Gene FJ20DET
hod rodder


Joined: 06 Oct 2001
Posts: 9163
Location: brisbane

PostPosted: Mon May 05, 2003 11:09 pm    Post subject: Re: what turbo Reply with quote

"posted by tx1975 on Mon May 5 20:37:01 2003, ip logged

i read a whole article in hot 4s how porting was the very last thing u do to a turbo car as the power gain isnt that great. "

thats true!
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hot1800
tinkerer


Joined: 15 Mar 2003
Posts: 59

PostPosted: Tue May 06, 2003 12:43 am    Post subject: Re: what turbo Reply with quote

hey mate who are you getting to make the exhaust manifold
what pistons are you using and how much approx do you think it will cost you
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coupetx
tinkerer


Joined: 09 Apr 2003
Posts: 186

PostPosted: Tue May 06, 2003 8:27 pm    Post subject: Re: what turbo Reply with quote

i'm a apprentice machanic and i still contemplating the turbo idea, i was going to get the manifold made down victor harbour for around 200, the pistons i'm getting track down for me, if there any suitable around, in a few days i will know more about them.
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