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01-10-2008, 01:59 AM | #1 |
Former Vendor
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Join Date: Apr 2004
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SCIC
Location: Torrance, CA
Vehicle:2006 Mod Class STI TIMEATTACK!! |
2008 STI: Turboback and tune - 91 and 100 octane
As some of you know, we've been busy working on some 2008 STIs lately. I just finished tuning this one last night.
2008 STI w/ BBS 650 miles Catless Turboback California 91 Octane Protuned Cobb Accessport [CLICK HERE FOR A LARGER GRAPH] Turboback:231WHP / 262 TQ Custom Tuned w/ Turboback: 264WHP / 297TQ Running the car on the Mustang MD500SE The 2008 STI spools considerably faster than the earlier single AVCS motors. It's also making more torque than comparable 2007 STIs on this dyno. Horsepower is right in-line with the 2007. Like our shop STI, this car has the SI-drive reprogrammed for improved throttle response and driveability. [CLICK HERE FOR LARGER GRAPH] 91 Octane: 264WHP / 297TQ 100 Octane: 282WHP / 336TQ I'm putting together some graphs comparing the 2008 to a similarly prepped and tuned 2007. I'll post them up tomorrow. - Dan
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01-10-2008, 02:47 AM | #2 |
Scooby Guru
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SCIC
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Vehicle:2007 2.34LR, EFR7670 LINK G4+ hybrid STi |
I was at Kevin's shop when he got back with the car tonight. First time I've seen an '08 STi in person and I have to say I kind of like it. It sounded pretty sweet too. Good work Dan.
PS: Talked to Ian today about my car and upcoming tune. I hope I can get in to see you guys soon. Kelly |
01-10-2008, 03:12 AM | #3 |
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SCIC
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Vehicle:2015 WRX Black |
What brand is the TBE? Is it a DP only?
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01-10-2008, 03:25 AM | #4 | |
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Join Date: Aug 2003
Location: san ramon
Vehicle:03 wrx gt35r, 2.5L, meth |
Quote:
How much faster? So basically, is this car going to be pure sex when more twinscroll GT series kits hit the market? Because if for mid sized turbos it appears you already get a couple hundred rpm in spool time w/ single AVCS, and you get a couple hundred more from twinscroll.... |
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01-10-2008, 03:27 AM | #5 |
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TBE = turbo back exhaust
what was the horsepower with the stock exhaust? I must be missing something, isn't that a protuned "stage 2" setup. |
01-10-2008, 04:15 AM | #6 |
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Vehicle:2015 WRX Black |
tbe = dp + ANY cb
ex. cobb catted dp + OEM cb on a 07 STI w/ 91 Costco gas on the same dyno --- see below (LMK if you want me to take this down.) |
01-10-2008, 08:57 AM | #7 |
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Tri-State
Vehicle:2008 Land Rover 02 WRX |
wow so it seems like the 08 spools around 500rpm quicker and holds 300tq for a bit longer than the 07.. thats neat
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01-10-2008, 09:34 AM | #8 |
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MWSOC
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Vehicle:2001 Legacy GT back to stock is a project too |
are you guys running 20psi on these 08's like in merrinr813's graph?
just curious for future comparison reference cause I know in your other thread you did a stage 1 tune and only upped boost by 1 psi. thanks Ben |
01-10-2008, 09:35 AM | #9 |
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good numbers!
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01-10-2008, 11:13 AM | #10 |
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Nice job. Im starting to like the 08's a lot.
on a side note: wow, your dyno area looks awesome! |
01-10-2008, 11:25 AM | #11 |
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South East
Location: WEsley Chapel, FL
Vehicle:2007 STi White |
am i reading things wrong ?
I see an 07 above with just a DP has pretty much the same numbers on 91 as the 08 with a TBE ? I dont see the 08 making more power with the same mods/same fuel/same dyno. |
01-10-2008, 12:10 PM | #12 |
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I think what they are saying is that it doesn't have more peak power, just a broader power band. Correct me if I am wrong though.
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01-10-2008, 12:27 PM | #13 | |
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Quote:
Long story short, 08 powerband > 07 powerband Ben |
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01-10-2008, 12:33 PM | #14 |
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01-10-2008, 01:04 PM | #15 |
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What turbo does the 2008 STI use?
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01-10-2008, 01:31 PM | #16 |
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that slightly larger powerband makes me glad i have an 07
the 08 is using a VF48... and yea, it looks like the 08 peaked 20 psi... |
01-10-2008, 02:19 PM | #17 |
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01-10-2008, 02:28 PM | #18 |
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Vehicle:2001 Legacy GT back to stock is a project too |
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01-10-2008, 02:32 PM | #19 |
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Vehicle:2010 Ford Taurus Company Car |
This makes me wonder if the new JDM has the same dual AVCS heads. If so... V.7 block+new 2.0 JDM dual-AVCS heads ftw!
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01-10-2008, 02:35 PM | #20 |
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Vehicle:10 Toyota Taco K8 SV650SF |
jsut checkin in on nabisco...
good work with the sti! you got an awesome powerband out of that and pretty respectable numbers.. me likey paul |
01-10-2008, 03:46 PM | #21 | |
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Vehicle:2008 Land Rover 02 WRX |
Quote:
long story short: 08>07 in initial tuning results so far. |
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01-10-2008, 03:55 PM | #22 |
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01-10-2008, 04:02 PM | #23 |
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Would it be possible to overlay the the 2007 plot with the 2008 plot?
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01-10-2008, 04:14 PM | #24 |
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Vehicle:2006 BLACK STI UR Rotated GT30R |
only 650 miles and beating the hell out of it already. good for him but bad for long term oil consumption
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01-10-2008, 04:21 PM | #25 |
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Vehicle:2013 STI GR White |
I wonder how much the increased spool (again wrong but popular word, should be boost threshold) is attributed to the turbo vs the dual AVCS?
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