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Old 04-25-2005, 10:05 PM   #1
SubWRX2002
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Member#: 63802
Join Date: Jun 2004
Location: K-Town, WI
Vehicle:
2002 PSM WRX Stage 2
2000 Black Trans am WS6

Default Ported and polished stock turbo

First off i plan on UP, DP, catback and accessport for my otherwise stock WRX. I want to be able to be faster than a stock STI without and aftermarket tubro set up and was wondering what the advantages/disadvantages of PortingandPolishing the stock turbo is.
1. Will this give me good gains? what kinds?
2. Can I get my stock turbo P&P'ed and run it with these mods as is, or do i have to upgrade anything else?
3. What is required in P&Ping a turbo and how much should it cost (approx)?
4 Is it worth it, if I dont want an aftermarket fuel or turbo set up, but would like to be able to beat a stock STi?

Thanks.
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Old 04-25-2005, 10:20 PM   #2
kennyvb
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Location: NYC
Vehicle:
MY86 BMW E30 325
SCIC/NWIC tranplant (-_-)

Default

1. Arguably better spool
2. As-is will work
3. Time, Skill, Grinder (not necessarily in that order) OR ~$200
4. Maybe, Maybe

You'd be running a Cobb Stage 2 which people argue can compete with a STi in a straight-line dig. There is no real disadvantage to PnP'ing a turbo but you won't find it giving you significant horsepower if that's what you're asking.
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Old 04-25-2005, 11:09 PM   #3
InfamousDX
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Also with faster spool.. you should get better reponse...
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Old 04-25-2005, 11:42 PM   #4
ebeck
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RIP I'll always be
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If you plan on staying with a stock turbo, might as well. Can only help. Even if a little it is more cost effective than many other mods. Especially if you do it yourself.
Read up on it, make a project out of it. As far as being faster than an STI, Who keeps an STi stock? If they do then you'll be faster. Kinda. They still have the torque.
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Old 04-25-2005, 11:44 PM   #5
2ndGearFling
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A lot of people say that the P&P doesnt really do anything and a waste of time. Somthing to reasearch a little more.
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Old 04-26-2005, 01:35 AM   #6
ebeck
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It is a matter of degrees. It helps some. Nothing like a big turbo. Do it your self. It is cheap and can't hurt.

Probably worthwhile on a USDM car, I personaly never did it on a USDM car. Like I said, can't hurt though. If you can feel a turbo inlet hose I imagine you would feels this more so.

Do it man. Noting but upside.
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Old 04-26-2005, 02:22 AM   #7
SleepinRex
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for those who think the stock wrx is "laggy" a p&p tod4 is perfect for them. Makes the power curve much more linear and helps roll on power. Ive done a bunch of them, and while i feel that still dies at the higher rpms, other gurus swear by the P&P tdo4.
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Old 04-26-2005, 03:11 PM   #8
phamster
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i have one and it is great, for in city driving wonderful, but beating STI i don't think so..keeping up, maybe until 80mph, then they pull ahead...as to the upgrade, nice instant boost in 2nd and beyond. read on... crazy thread there..

basically your power band is shifted to the left side by 500 or so rpm which is noticable, but your ceiling line is still the same as the orginal TD04.. make sense? boost earlier and that is it. so for sprints from 0-50 mph it is super but beyond that it is the same as the factory turbo..



http://forums.nasioc.com/forums/show...light=deadbolt
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