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Question about the turbo size for my set-up

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Old 05-10-2007, 01:56 PM
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Default Question about the turbo size for my set-up

Whats up guys, i am in the process of finishing my turbo set-up but before i do i had a few questions. Now being a die hard all motor guy im relatively new to FI so i was curious if i could get some useful and constructive answers about my set-up

current set-up:
stock b20z block (9:6:1)
stock p8r head
Blox IM
Greddy 15g
2.5" downpipe
Hondata s200

My first and probably most important question is would it be worth it to upgrade now to the 18g before i take this to get tuned?

This is my daily driver and i will not be running anything over 7psi and DONT want to build the block at all.

Would i safely be able to pull off 7psi with the 18g assuming i get tuned with s200?

What difference in power would i expect to see from switching from the 15g to the 18g?

Once again thanks in advance
Old 05-13-2007, 09:35 AM
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Default Re: Question about the turbo size for my set-up (dohcMONSTER)

bumo, anyone?
Old 05-15-2007, 10:05 AM
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Default Re: Question about the turbo size for my set-up (dohcMONSTER)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dohcMONSTER &raquo;</TD></TR><TR><TD CLASS="quote">bumo, anyone?</TD></TR></TABLE>
Old 05-24-2007, 01:35 PM
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Default Re: Question about the turbo size for my set-up (dohcMONSTER)

Old 05-24-2007, 04:01 PM
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Default Re: Question about the turbo size for my set-up (dohcMONSTER)

The 18G isn't that large, but it will make considerably more power than the 15G.

I run 12 psi on my stock GSR with an 18G. You should be perfectly safe at 7 psi.
Old 05-24-2007, 04:36 PM
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The 15G was made for d-series. Get the 18G if you can. And 7 lbs of boost is nothing if it's well tune.
Old 05-24-2007, 06:05 PM
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Default Re: Question about the turbo size for my set-up (Dartanian)

i have a buddy that runs 9pounds on a stock gsr out of a 57trim t3/t4 garrett tubo he now has just hit 22000 miles running it that way
Old 05-27-2007, 11:05 AM
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Default Re: Question about the turbo size for my set-up (PiMpIn)

thanks for the replies guys, any one else want to chime in?
Old 05-27-2007, 11:36 AM
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get the 18g.
Also, upgrade the downpipe and get a 3" exhaust.

My numbers are in my sig, spiking to 12 or so psi, holding around 8-9.

Jason(st00pid) said i would be in the high 200's but my exhaust is holding me wayyy back, I just have the stock greddy bs and a shitty dcsports exhaust.
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