2006 wrx Cobb Stg2

[Dutchman]

Stock intake, cobb AP version 1 with stg 2 OTS map, helix catted downpipe. Mustang dyno (~sea level) shows 197 hp [@4800] & 250 tq [@3000]. Is this about right ?

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[wrxSIN]

kinda low IMO
check out Cobbs mustang #'s

[Audiosavvy]

Your car was on a different dyno. If you REALLY think there's a problem, post up the graph so we can see if something's not right. What does a stock 2.5WRX dyno at on THAT dyno?


You're killing yourself trying to compare numbers.

[Dave D.]

Depends on the dyno. Kito's Mustang dyno in Seattle reads low, and so could yours. My stock #'s were 177hp/200tq and my VF39'd numbers were 225hp/250tq, whereas a stock STi on their dyno pulls about 230/230.

So with the VF39 I pulled about +50hp/+50tq, which is a decent gain, knowing my stock #'s on the same dyno. Did you do a baseline pull? If not, ask your tuner if he has stock #'s for an 06 rex or for an Sti. It's all relative.

[treystoys]

The drag strip tells all!

Do you have any track numbers stock? If so, that, and seat of the pants feel from stock to stage 2 is pretty noticable...also might add the catted downpipe is choking you up some as well.

Trey

[treystoys]

Also just realized you don't have a cat back exhaust listed...if your running the oe parts there, your not getting everything from the fairly rich stage 2 off the shelf map. My 05 2 litre rex ran 13.2-13.6 @ 100 or so, weather dependant with the stage 2 cobb high wastegate map with an APS catless turbo back, drop in K&N filter, perrin turbo inlet and aps upipe on 93 octane.

hope these things lessen your anguish...as far as dyno numbers, my car was tuned for its first turbo upgrade (evo3 16g) on a unknown at the time low reading dynodynamics dyno...I left there making a measly 260 whp and 233 wtq...later that year with the same tune, I was running low 12s! So like I said, dynos mean nothing unless your comparing the exact same car with different mods in like weather conditions.

ttyl

Trey

[Dutchman]

***Update - Car felt better on the way home last night in colder temps. Popped the hood today to find that the shop did not re-install my turbo heat shield after installing the helix downpipe - I'm guessing it should fit [i didnt have a chance to try myself]... Now this leads me to the question, could the reason why the dyno #'s were a little low be due to the fact that the cars was idling for quite a few mintues and then run 2 times on the mustang dyno [60+F outside temp] with all of that turbo heat up against the intercooler..? Thoughts [possible heatsoak causing the computer to pull timing].?

[FreNetiC STi]

no, it's probably do to the fact that you don't have a CBE. The stock intake and the catted DP (though worlds better than the OEM DP) don't help the airflow with your stock CBE. believe it or not, i tuned stg II one after the other with a kid who had the same car, and the only differences were that he had a short ram and an STi TMIC, and he made about 10+ hp and TQ at the wheels on me. all of these things come into play.


but these other guys are right too. don't get SO caught up over numbers, wait until you actually test it at the 1/4 strip or something. dyno's aren't the best comparison for what the car actually puts down on the street.

[Blacksails192]

does seem alittle low but the mustang dyno is the heartbreaker dyno. but they are the most accurate... you could go throw it on a dynojet somewhere and get high numbers if it would make your happier but you know the real power of your car on a mustang

[FreNetiC STi]

Originally Posted by Blacksails192

but you know the real power of your car on a drag strip

fixed

though you are correct, the mustang is the truest reading dyno i guess. as far as dyno's go.

not to jack his thread, but out of curiosity, what did you make on your 20g? what dyno?




BTW- you're two posts away from becoming a specialist i was seeing if you started a thread about your tune.

[Dave D.]

Why didn't your shop do a baseline pull?

[Blacksails192]

my car made 327whp and 348wtq at 20psi on a mustang dyno...

[bulgarianfreak55]

Originally Posted by Blacksails192

my car made 327whp and 348wtq at 20psi on a mustang dyno...

lol, I don't want to bash in anyway I just don't see how this will help him since you have a different engine, turbo, and different mustang dyno.

[Blacksails192]

it was to answer Skunky Butt08's question... im not trying to thread jack

[Blacksails192]

if he wants more numbers he can get a protune or more mods

[FreNetiC STi]

Originally Posted by bulgarianfreak55

lol, I don't want to bash in anyway I just don't see how this will help him since you have a different engine, turbo, and different mustang dyno.

he has already received his answers, blacksails was answering my question, you did read above your post right?

[Dave D.]

Have you asked your tuner yet what a stock rex or STi makes?

[FreNetiC STi]

^^yeah, i figured he'd of mentioned that by now.

he's got full tq at 3k, which is where mine is too, and i made 315 on a dynojet. but the 197 seems really low, even for a mustang dyno. i made 245/315. once again, getting into comparing numbers can be useless sometimes, but just throwing it out there.

[FreNetiC STi]

Originally Posted by Dave D.

Have you asked your tuner yet what a stock rex or STi makes?

you know what? i think we're going about this all wrong. i don't think he got tuned at all. the way it seems (based on what he said) is that the shop installed his DP for him and he flashed a stg II map instead of a stg I map, and the shop dyno'd him w/o a tune, solely on the ots stg II map. is this correct?

maybe i'm just the only retard in this thread who didn't realize that


if that's the case, i don't think anything sounds too far off.

[Audiosavvy]

It's an OTS map with a stock catback. There is a lot left on the table. Under the circumstances, it's right where I would expect it to be.

[FreNetiC STi]

^^exactly, i was under the impression that he was tuned with it.

[Dutchman]

Car has 59k mi -- stock intake w/ dirty air filter, helix catted downpipe & SPT cbe. We flashed stg. II OTS map v1.01, then disc'd battery to install new spark plugs, then hit the dyno without heatshield [verified on AP that base map was still stg2]- I was originally thinking heat soak caused low hp #'s. Also, I dont have a boost gauge and their dyno cant check boost so we have no idea.. Car drove ok today and is def smoother and torquier, just doesnt seem much faster than stock. Tuner said that he has done stg 2 wrx's and seen ~230/250 on same dyno - i was at 197/250 - torque is there but not hp. Any last thoughts?

[FreNetiC STi]

hmm, that's strange, because tuners usually can't pull much more whp out of the OTS stg II maps on our 2.5l wrx's, so that still seems low. the wtq still seems a little low as well, but since it's hitting at 3k that's about right. how the hell does their dyno not read boost? especially if he tunes on that dyno?


when i flashed stg II there was a significant difference, much quicker and torquier, and much more fun. then with the tune it was a world of difference. just get it tuned man. the OTS maps are garbage anyway.


all in all, sounds about right for a STG II OTS map. but there's no way you should be making the same TQ numbers as a tuned stg II wrx. i made 65wtq over the OTS map, and 15 whp, so something is still fishy here.

[Dutchman]

Just to clarify - shop where i got this done has seen OTS cobb stg2 wrx's hit 230/250+. Either way I was at the 197/250 - so are we ruling out the idea of heat soak causing the ecu to pull timing and bring my hp #'s down on the 2 pulls? At this point, I may just take the car to another tuner that can protune the car and diagnose any and all issues - hopefully I dont grenade anything if I drive the car hard.

The car was strong to begine with and i regret not baselining it - now if the car was ~ 195+/225+ stock [assumption], how the hell could i only pick up a few hp with the downpipe and stg2 map? Boost issue? -
AFR= 11.0 and hit 13.0 at peak power

[FreNetiC STi]

^^well, i was detonating badly on the OTS map, so i dunno man, could be. i would drive it around easy, and i would take your second choice as well. if you have money for a tune, i would go to a different tuner, and get a reliable tune.

my heat shield is nowhere to be found, and I personally don't think that had anything to do with your numbers.


also, you're saying they weren't watching your AFR's or anything while it was on the dyno? is this a known tuner or just a shop w/ a dyno?