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Old 07-14-2002, 09:01 AM   #1
jimb
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RIP MBP WRX

Thumbs up Light mods dyno results (watch out Al).

Dyno'd yesterday at BMTranny in Bound Brook, NJ. 205.8awhp and 210.8 ft/lbs torque. Only mods are turbo-back (single cat, 3.0"), uppipe, and samco ic hoses. No engine management or boost control. Boost dropped pretty steadily after 5k. I'd have seen much better results if I had an mbc installed.



A few other cars were dyno'd also. But I'll let those guys reply with their own results.

jb
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Old 07-14-2002, 10:17 AM   #2
stickman
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looks good. all u need is that mbc and up pipe

what are u next mods?
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Old 07-14-2002, 11:19 AM   #3
TurismoLou
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Way to go Jim! Ofcourse your car is the one that broke the dyno yesterday, causing me to leave. Anyway, I got to get back there soon. All you need now is a mbc and one of those nifty s-afc's.
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Old 07-14-2002, 11:31 AM   #4
atf78
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Here's my plot from yesterday. My mods include an MBC at 15.5 psi, TurboXS Stage 1 Unichip, K&N drop in filter, and a Blitz Nur Spec axleback.

This was the last run I made, and I gained 14.1hp by using the MBC instead of the factory boost with an ABC at 16psi .



Next month I'll be installing an uppipe, TurboXS turboback, Samco IC hoses, and a Stage 2 remapped Unichip.

-Anthony
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Old 07-14-2002, 12:43 PM   #5
jimb
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I'll be back there at the end of the summer. My MBC came in the mail yesterday, after I got home... Go figure. Next mods are the Zero Sports intake pipe (I am dead set on keeping the stock air box with resonator and intake) and the samco inlet hose. Maybe, and I mean maybe, lightened pulleys, but I doubt it.

jb
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Old 07-14-2002, 03:03 PM   #6
stickman
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Quote:
Originally posted by jimb
I'll be back there at the end of the summer. My MBC came in the mail yesterday, after I got home... Go figure. Next mods are the Zero Sports intake pipe (I am dead set on keeping the stock air box with resonator and intake) and the samco inlet hose. Maybe, and I mean maybe, lightened pulleys, but I doubt it.

jb
sounds good. im doing the same with my air box. not changing a thing. how do u like ur samco I/C hoses?
i love mine.

my next mods are springs (tein) and cusco strut bar but i want to get vishnu DP when it comes out and keep the stock muffler. i love the quietness.
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Old 07-17-2002, 10:10 AM   #7
n20x3whitewrx
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not bad fellas i also visited bmtranny,mark and jeff hill ran my wrx hard on that dyno and put out a ok 220.0 hpand 227.9 torque.i only have a turbo back exhaust and stage 2 chip injen intake[wich sucks due too mad heat] and dual stage boost controler.i plan too get those #s higher,does a uppipe make a large difference?top mount help also or what??i will post the printout soon as my girlfriend does it for me i dont know how
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Old 07-17-2002, 11:55 AM   #8
JenisonWRX
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been to the track yet?
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Old 07-17-2002, 12:17 PM   #9
I am b
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It's all about the turbo back. Pretty amazing that a turbo back and up-pipe put out the same power as a uni-chip w/ mbc. Not bad at all. People are wasting their money w/ the cat-backs.
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Old 07-17-2002, 01:33 PM   #10
stickman
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Quote:
Originally posted by blkwrxwgn
It's all about the turbo back. Pretty amazing that a turbo back and up-pipe put out the same power as a uni-chip w/ mbc. Not bad at all. People are wasting their money w/ the cat-backs.
i agree to a point but the bigger, free flowing exhaust helps alot.

efficiency is the name of the game
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Old 07-19-2002, 01:24 AM   #11
BIGSKYWRX
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jimb,

Thanks for posting. Your setup is real close to a STX legal setup (samco ic hoses may be questionable). The recently enacted new rules allowed us to remove two of the three cats- obviously the uppipe would go. We then have the option of a high flow in the dp or midpipe (I'm leaning midpipe-more power I'm guessing). With close to 40 hp/torque jump over stock (based on your dyno run), I'd say mighty impressive. I'm looking forward to a leap in power.

As a side note we are allowed engine mgt, but w/o any boost adjustment. Timing and fuel adjustment are OK. Talking to Trey and he feels a properly tuned unichip (minus boost controller) should be in the neighborhood of ~ 20 hp/torque. That would be in the ballpark of 60 extra horses over stock.

We are also allowed intake modification- don't think there is a whole lot there, but probably a few ponys.

Thanks again for posting as I've been very curious what kind of potential there was for STX allowed mods.

Big Sky
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Old 07-19-2002, 07:00 AM   #12
jimb
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In case anyone is wondering, my exhaust is Graham Goode, turbo back with a single high flow cat in the middle of the downpipe. It has a wide mouth flange at the turbo, similar to the TXS (not as wild though), and tapers to 3.0" to the tailpipe. It also contains a single resonator in the midpipe. It's a 'system' per se, and has slip fit joints, so you can't really mix and match here. I opted for the cat in the DP for two reasons, to keep the cat hotter and thus, keep CEL's away, and secondly, because the cat gets hotter quicker, emissions should be lower than a mid-pipe catted car.

I'm not sure about picking up 20hp across the board, however, seeing an safc tuned to 11.0 a/f and gaining over 15hp, it could certainly be possible.

Ideally, running with the stock BC, you'll want to port and polish everything between the turbo and manifold. I don't know what the rules state, but you want to do everything possible (within the rules) to hold boost at higher rpms (lowering the boost threshold wouldn't hurt either).

jb
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Old 07-19-2002, 07:23 AM   #13
ralan
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Do any of you guys have a EGT , and what were you seeing for temps?

Thanx,
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Old 07-22-2002, 10:45 AM   #14
stickman
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Quote:
Originally posted by ralan
Do any of you guys have a EGT , and what were you seeing for temps?

Thanx,
i got greddy egt and i see typically just over 700C.
mods are: vishnu up pipe, samco I/c hoses, and mbc
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