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Old 10-26-2013, 06:04 PM   #1
Heedlessone
Scooby Specialist
 
Member#: 254130
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Bozeman, MT
Vehicle:
2004 STi
Twinscroll Goodness

Default 2004 STi Grimmspeed TMIC

Event: Road tuning
Location: Bozeman, MT
Ambient Temp: ~50
Elevation: 5000
Weather: Clear
Tires: 245/45/17 Ventus V710

Car: 2004 STi
Tuner: Ron Watson at Phatbotti
Dyno Info: brand
Transmission: 6spd
Gear: 4th
Peak HP at RPM: 269 @ 5160
Peak Torque at RPM: 311 @ 3970
Baseline hp/tq for a stock on same dyno: ~190whp
Target Boost: 20psi
Target AFR: ~10.6
Fuel: 91 octane
Engine/Power Modifications: Stock turbo, catless turboback, 38mm EWG, Grimmspeed MBC, Grimspeed TMIC
Driveline Modifications: NA
Suspension Modifications: NA
Other Modifications: Bushings


I was fortunate enough this year to be granted the Grimmspeed Contingency and earned quite a bit of money. I decided to bite the bullet and go with their intercooler. First off, I was blown away by the quality of the intercooler. Much heavier than stock, but in a good way.

Ron and I were both surprised at the hp/tq gain, needless to say. The car feels smoother and I'm pretty pleased with the end product. Elevation is a killer, but on a Dynojet Dyno (there is a facility in Bozeman) with the stock TMIC I was at 265whp/340wtq. When I'm able to get on it again I'll post the results.

Here is a VD Dynojet log for comparison, it's not spot on, but at least the gains are depicted.

Both pulls were same ambient temperature, same timing on the top end and less at peak boost, and same boost pressure.
- Stock TMIC vs. GS TMIC:



I'd like to thank Ron @ Phatbotti and Andy @ Grimmspeed for hooking me up!
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Last edited by Heedlessone; 10-26-2013 at 06:11 PM.
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Old 10-26-2013, 08:22 PM   #2
bilt2run
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Member#: 134211
Join Date: Dec 2006
Location: LONG ISLAND
Default

I honestly dont believe there could be that much of a difference at that power level..especially way down in the rpm
I def would like to see the dynojet results too
If that were close to correct you def should feel the difference, how is it on the street?
Were you able to check intake temps before and after?
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Old 10-26-2013, 08:52 PM   #3
Heedlessone
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Member#: 254130
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Bozeman, MT
Vehicle:
2004 STi
Twinscroll Goodness

Default

Everything was done with almost identical conditions. Intake temps actually drop on both pulls.

It is noticeably faster. Boost comes on sooner and hits harder.
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Old 10-26-2013, 10:15 PM   #4
Phatron
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Member#: 36033
Join Date: Apr 2003
Chapter/Region: SCIC
Location: Tuning Lab
Vehicle:
CEO PhatBottiTuning
2006 STi GTX3582 + Meth

Default

Heres the MAF voltage and Intake temps. You can see the MAFv's are up everywhere and the IAT's are within 6*

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Old 10-26-2013, 10:23 PM   #5
Phatron
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Member#: 36033
Join Date: Apr 2003
Chapter/Region: SCIC
Location: Tuning Lab
Vehicle:
CEO PhatBottiTuning
2006 STi GTX3582 + Meth

Default

Maybe there was some other factor....as far as I know all Jon changed was the intercooler. Maybe there was a leak before, maybe the stock intercooler was leaking....maybe some other parameter (atmospheric pressure) was causing a higher density altitude when we tuned the car last time, dirty air filter....a combination of all of them. But those are the results. I don't have a dog in this fight as I don't slang parts.
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Old 10-26-2013, 11:35 PM   #6
mod maniac
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Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
Vehicle:
2&4 fxt & fxt sti
Fullers Garage

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That looks great. I wanted one of those but they were not available when I did mine. #'s look good Ron is the man..
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Old 10-26-2013, 11:43 PM   #7
Heedlessone
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Member#: 254130
Join Date: Aug 2010
Chapter/Region: NWIC
Location: Bozeman, MT
Vehicle:
2004 STi
Twinscroll Goodness

Default

Quote:
Originally Posted by mod maniac View Post
Ron is the man..
Agreed!
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Old 10-27-2013, 07:58 AM   #8
Bru1212
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Join Date: Apr 2008
Chapter/Region: NESIC
Location: Western,MA
Vehicle:
06 STi
04 FXT

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Killer!! congrats. I shoulda got in on the GB
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