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Old 08-20-2003, 12:01 PM   #1
SpeedShift
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Default should i get an uppipe?

only mod right now is a reflash.

should i get an uppipe? will an uppipe give me more power, or just help me spool up faster? can you hear the turbo even more with an uppipe?

i have $500 and i dont know whether to spend it on an uppipe or a V1 radar detector....
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Old 08-20-2003, 02:44 PM   #2
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An uppipe will give you better long term reliability - as there's no cat to disintegrate for your turbo to ingest. There will be quicker spool, depending on the design of the pipe.

Autospeed and Helix with flex sections are good bets, and not ludicrously priced.
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Old 08-20-2003, 03:51 PM   #3
jblaine
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Yes.
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Old 08-20-2003, 04:47 PM   #4
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yes, but gut your stock one for free.
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Old 08-20-2003, 05:16 PM   #5
SpeedShift
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Quote:
yes, but gut your stock one for free.
thats what i was thinking. now to just do some research on what an uppipe looks like and where it's at

wont i need another reflash if i have an uppipe?
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Old 08-20-2003, 05:47 PM   #6
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Gut the stock one, then get the V1.

But be prepared for WORK doing it that way.

OR, get the Gruppe-S uppipe (cheapest I have seen) and still get the V1.

Either way, replacing the up-pipe is a pain. Use the Vishnu instructions and it helps to have a helper on a few spots.
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Old 08-21-2003, 12:04 AM   #7
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Default UTEC Stage 1

I'm thinking about getting TurboXS UTEC Stage 1, (no other engine mods) with 15.1 psi. Do you guys think 15.1 psi is SAFE for stock uppipe with the cat crap inside?
Thanks, Maw
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Old 08-21-2003, 11:22 AM   #8
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Boost target on stg1 is 16psi - your 15.1psi is low - and consequently pretty safe

Last edited by digitaltekniq; 08-21-2003 at 11:47 AM.
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Old 08-21-2003, 10:46 PM   #9
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I would recommend NOT gutting the stock pipe. This will cause turbulent air, and not help you. That and its a LOT of work.
perrin or vishnu uppipe's are good. I'm running a aps flex uppipe (and no, there are no deformities)

isn't this the wrong forum? this should be in FI
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Old 08-21-2003, 10:53 PM   #10
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Quote:
Originally posted by BOFslime
This will cause turbulent air, and not help you.
Prove it.

http://clubwrx.net/forums/showthread...=gutted+uppipe

Though not a thoroughly scientific experiment, it suggests that the "turbulence" introduced doesn't do jack to a mildly tuned WRX. I'm pushing 209-213 to the wheels with a gutted stock pipe. So far so good.

Last edited by supermarkus; 08-21-2003 at 11:02 PM.
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Old 08-21-2003, 11:39 PM   #11
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Quote:
Originally posted by supermarkus


Prove it.

http://clubwrx.net/forums/showthread...=gutted+uppipe

Though not a thoroughly scientific experiment, it suggests that the "turbulence" introduced doesn't do jack to a mildly tuned WRX. I'm pushing 209-213 to the wheels with a gutted stock pipe. So far so good.
I second that.
turbulent air? I polished mine to a near mirror finish. You can't beat the price, and if you do a little homework it won't take that long. i did the entire thing in about 45min.
Marcel
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Old 08-22-2003, 12:34 AM   #12
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Quote:
Originally posted by supermarkus


Prove it.

http://clubwrx.net/forums/showthread...=gutted+uppipe

Though not a thoroughly scientific experiment, it suggests that the "turbulence" introduced doesn't do jack to a mildly tuned WRX. I'm pushing 209-213 to the wheels with a gutted stock pipe. So far so good.
I would be more interested in boost vs time, in this type of experiment. peek HP didn't change, but this doesn't paint the whole picture, and proves little.
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Old 08-22-2003, 02:04 AM   #13
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And your conjecture on the effect of the turbulence proves lots?
If boost vs RPM is an indication of up-pipe performance, I make full boost by ~2700 RPM in 3rd gear. I'm still at stock boost, ~14 psi. I wish I still had my DD so I could read my old datalogs, I may be able to convert some of my Pocketlogger datalogs. I think they show MAP vs RPM. I'll get back to you guys on this.
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Old 08-22-2003, 02:25 AM   #14
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BAH! My friggin datalogs are crap, it doesn't look like I managed to find a place to do one dyno-style pull. I'll try to get some logs this weekend, they'll be on my Pocket logger though, so they won't be directly comparable to Delta Dash stuff, or as high resolution, but they show general trends. More to come.
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Old 08-22-2003, 09:49 AM   #15
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Quote:
Originally posted by supermarkus
And your conjecture on the effect of the turbulence proves lots?
I never said my opinion was end-all, be-all fact. This is a msg board where people post there expirences, first hand or word of mouth. Don't need to get all up in a bunch about it.

and yes spool time, is a much better mesurment of an up-pipes performance than peek HP. My dd is in the mail, and should be here either today, or monday. I'll get some logs of my own car, although they will not be directly comparable to others, as exhaust and my ecutek boost map, play's into this aswell.

Last edited by BOFslime; 08-22-2003 at 10:04 AM.
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Old 08-22-2003, 12:22 PM   #16
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Default turbulance is irrlevant in real life, nice theory though...

The fact of he matter is this.
I have talked to 3 different peopl that do dyno tuning. All 3 have dyno tuned cars with multiple brands of up pipes. Here is what they ALL said
They have seen no power/spool difference between ANY of the up pipes (other than they are better than stock)
That's with cast iron, matched to the inlet sized pipes (txs)
Thats with larger than the inlet stainless
thats with gutted stock up pipes.
no difference whatsoever between them all.
So while the turbulance theory is solid, and looks great on paper, it falls on its face in real world testing.

BUT gutting the stock uppy is a MAJOR PITA.

with 500 bucks I would
buy another stock up pipe for 45 bucks then gut it, swap it in, then sell my stock up pipe for 45 bucks
I would then buy some Somco intercooler hoses and the V1.
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Old 08-22-2003, 12:50 PM   #17
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Default Re: turbulance is irrlevant in real life, nice theory though...

Quote:
Originally posted by Davenow
The fact of he matter is this.
I have talked to 3 different peopl that do dyno tuning. All 3 have dyno tuned cars with multiple brands of up pipes. Here is what they ALL said
They have seen no power/spool difference between ANY of the up pipes (other than they are better than stock)
That's with cast iron, matched to the inlet sized pipes (txs)
Thats with larger than the inlet stainless
thats with gutted stock up pipes.
no difference whatsoever between them all.
So while the turbulance theory is solid, and looks great on paper, it falls on its face in real world testing.

BUT gutting the stock uppy is a MAJOR PITA.

with 500 bucks I would
buy another stock up pipe for 45 bucks then gut it, swap it in, then sell my stock up pipe for 45 bucks
I would then buy some Somco intercooler hoses and the V1.
^
^
^
What he said
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Old 08-22-2003, 01:40 PM   #18
BOFslime
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Default Re: turbulance is irrlevant in real life, nice theory though...

Quote:
Originally posted by Davenow
The fact of he matter is this.
I have talked to 3 different peopl that do dyno tuning. All 3 have dyno tuned cars with multiple brands of up pipes. Here is what they ALL said
They have seen no power/spool difference between ANY of the up pipes (other than they are better than stock)
That's with cast iron, matched to the inlet sized pipes (txs)
Thats with larger than the inlet stainless
thats with gutted stock up pipes.
no difference whatsoever between them all.
So while the turbulance theory is solid, and looks great on paper, it falls on its face in real world testing.

BUT gutting the stock uppy is a MAJOR PITA.

with 500 bucks I would
buy another stock up pipe for 45 bucks then gut it, swap it in, then sell my stock up pipe for 45 bucks
I would then buy some Somco intercooler hoses and the V1.
thats all i've ever implyed..
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Old 08-22-2003, 10:51 PM   #19
supermarkus
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Quote:
Originally posted by BOFslime

My dd is in the mail, and should be here either today, or monday. I'll get some logs of my own car, although they will not be directly comparable to others, as exhaust and my ecutek boost map, play's into this aswell.

You're going to love your DD, I'm bummed that I never found a laptop to run it with. But I traded it straight up to a buddy of mine that I know would put it to far greater use than my broke ass could, for Prodrive springs

One of the cool things was being able to activate the logger by hitting the rear defrost button, and the road dyno feature was pretty cool if you had enough space to make some pulls.

If you have a buddy with a stock WRX, you could A/B the two cars on the same stretch of road to make some legit comparisons.
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Old 08-23-2003, 01:47 AM   #20
BOFslime
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Quote:
Originally posted by supermarkus



You're going to love your DD, I'm bummed that I never found a laptop to run it with. But I traded it straight up to a buddy of mine that I know would put it to far greater use than my broke ass could, for Prodrive springs

One of the cool things was being able to activate the logger by hitting the rear defrost button, and the road dyno feature was pretty cool if you had enough space to make some pulls.

If you have a buddy with a stock WRX, you could A/B the two cars on the same stretch of road to make some legit comparisons.
I hope so, looking forward to getting it..
sadly i rarly see any wrx's, impreza's, or anything other than outback wagons around here. let alone know someone..

although tonight!!.. i saw a new modded WRX in Saginaw (city just south of mine) i thought me and rattler(nasioc) were the only one's ANYWHERE around Mid mich.

but good news is.. there are plenty of roads for me to do dyno pulls on.. (4th gear pulls too )
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Old 08-24-2003, 01:49 PM   #21
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That's what I did. I bought a stock gutted uppipe and put it in.
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