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- - Boost issue.. Kinda... (http://www.toyota-supra.info/forums/mkiii-supra/6750-boost-issue-kinda.html)

Boost issue.. Kinda...

Ok so I wanted to see how my car boosts through the first 3 gears since I never really tried going WOT through the first 3 gears. Well first gear went to 10psi, 2nd gear went to 5 psi, and 3rd gear went to 5 psi. Shouldnt it be 10, 10, 10?? Should it hold steady boost readings or drop a little? I think my car is fairly quick but I am sure that if I can do 10,10,10 it will fly. Do you guys think this is a boost leak issue somewhere in the system? How much does it cost to shim the wastegate and can it be done easily? I heard that shimming the wastegate lets the turbo spool to 14 psi. I also heard that a divorced downpipe gives the supra 30whp is this true? Sounds like a rediculous gain for one upgrade.

I know this is alot to read but my last question is what kind of power am I looking at with these upgrades. Just give me a rough estimate. I was thinking like 320hp?
Aluminum Radiator
Front mount intercooler
intake
divorced downpipe
test pipe
shimmed wastegate
14 psi
2 1/2 in magnaflow catback
HKS SS Blowoff valve
By the way I have a new HG, Timing chain, and ARP headbolts.
Would that setup be safe if I used 14psi only when racing and kept it at 6psi when daily driving?

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Aluminum Radiator

good mod

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Front mount intercooler

you already have a front mount IC if u have a turbo
why dont invest sum money first on sum hard pipes?

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intake

everybody should have that, a lot of pple say its good for about 10-12 hps

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test pipe

you live in illinois, if u ever get caught driving with this, the power:money ratio
is gonna tilt over to the money part cuz of all the fines/repairs your gonna be given

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shimmed wastegate

not a bad idea, but if willing to buy all of those in ur list
why not jus get a boost controller, even a manual one
that what it basically does, only ghetto

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14 psi

you're gonna be jus like a civic trying to race a mile
"u won bcuz i hit fuel cut" -civic
14 psi with no supporting fuel mods?

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2 1/2 in magnaflow catback

cmon man,, u got a turbo, 3 inch turbo back,
lesser restrictions, quicker exhaust gases get out of your system
more power ur car makes

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HKS SS Blowoff valve

sounds good and all, but im a greddy fan no offense lol

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Would that setup be safe if I used 14psi only when racing and kept it at 6psi when daily driving?

listen, the lucky number is nine (roughly)
do not try raising the boost so much without tuning, or without a dyno nontheless
you're gonna end up running too lean, and BOOM
well hope this helps u