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Old 10-08-2007, 11:57 PM   #1
virpacalis
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Default 07 STI with DP on 93

Andy at Verocious in Wilmington, DE installed and Protuned the following: a Cobb catted downpipe and heat shield, a Walbro fuel pump, and a Prodrive boost control solenoid. The car is still quiet but much smoother and quicker. I'm very satisfied with the crew at Verocious and RallySport Direct which delivered the parts.

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Last edited by virpacalis; 10-09-2007 at 12:04 AM.
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Old 10-09-2007, 01:54 AM   #2
wuuusaa
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i presume you running a stock cbe?
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Old 10-09-2007, 02:12 AM   #3
jordanretro1223
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Very nice, if you're logging it now after the tune, what are they looking like, AFR's? Any knock of any sort?

Just curious since it is an 07...
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Old 10-09-2007, 02:13 AM   #4
wRxbeater11
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Wow, deff high for those mods. congrats
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Old 10-09-2007, 02:40 AM   #5
AZScoobie
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Yuck... SOmeone does not know how to tune the KNock correction system on the ecu. Its knocking pretty bad around 6300.

CLark
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Old 10-09-2007, 02:50 AM   #6
Equilibrium Tuning
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Quote:
Originally Posted by AZScoobie View Post
Yuck... SOmeone does not know how to tune the KNock correction system on the ecu. Its knocking pretty bad around 6300.

CLark
You read my mind
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Old 10-09-2007, 11:21 AM   #7
nxttruck2002
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I don't think someone knows how to tune the '07 ecu's...
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Old 10-09-2007, 01:44 PM   #8
SinistiR
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This is Andy from Verocious. I would completly agree that it looks like the DAM is dropping from knock. I am trying to post a log of the run now showing absolutly no knock and the motor taking full advance over the full rpm range. I am having trouble posting the datalog, so if anyone can help me I would appreciate it. I think the issue is with my dyno electronics. I have been losing the signal from my rpm pickup and drum pick up sensors the last week and it is getting worse.

Actually I am quite fond of the 07 ECU's

Last edited by SinistiR; 10-09-2007 at 02:07 PM.
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Old 10-09-2007, 02:06 PM   #9
Equilibrium Tuning
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Quote:
Originally Posted by SinistiR View Post
This is Andy from Verocious. I would completly agree that it looks like the DAM is dropping from knock. I am trying to post a log of the run now showing absolutly no knock and the motor taking full advance over the full rpm range. I think the issue is with my dyno electronics. I have been losing the signal from my rpm pickup and drum pick up sensors the last week and it is getting worse.

Actually I am quite fond of the 07 ECU's
You realize that in the 07 ECU's knock will NOT be represented by a drop in the DAM or even in the Learned Ignition value that you log? Check out your total ignition advance around 6300... see a nice sudden dip?

-- Ed
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Old 10-09-2007, 02:45 PM   #10
SinistiR
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Ed

There is no sudden dip in timing. It does lose about a degree right there, but I had to smooth out the drop through the load ranges as rpm increased.

On a side note I also monitor knock via an earpiece and amplifier I made.
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Old 10-09-2007, 03:03 PM   #11
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Ed

There is no sudden dip in timing. It does lose about a degree right there, but I had to smooth out the drop through the load ranges as rpm increased.

On a side note I also monitor knock via an earpiece and amplifier I made.
Losing 1-1.5 degrees is generally what a knock event will look like on the 07's.
After the drop, the ECU will continue to advance the timing .5* at a time. Compare that dip with what your maps are actually calling for and you'll likely see a discrepancy.

Thanks
-- Ed
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Old 10-09-2007, 04:24 PM   #12
virpacalis
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Quote:
Originally Posted by ol'skoolwrx View Post
i presume you running a stock cbe?
That's right.
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Old 10-09-2007, 04:35 PM   #13
gabedude
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Quote:
Originally Posted by Vaus View Post
Losing 1-1.5 degrees is generally what a knock event will look like on the 07's.
After the drop, the ECU will continue to advance the timing .5* at a time. Compare that dip with what your maps are actually calling for and you'll likely see a discrepancy.

Thanks
-- Ed
Default is -1.4* and the step without the knock signal present is .35*

Gabe
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Old 10-09-2007, 04:38 PM   #14
gabedude
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I bet it was running out of fuel or he did not adjust the ETC to hold the throttle open till fuel cut.

Gabe
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Old 10-09-2007, 05:16 PM   #15
SinistiR
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The last three rpm break points for throttle are set to 6900, 7150 and 7200. Duty cycles are 100% until 7150 and fall to 25% at 7200. Rev limit is set to 7200.

The car has an upgraded fuel pump, and running 89-90% DC.

When I view the gear ratios instead of power and torque in WinPep. At the same time power drops, the gear ratio goes crazy and ossilates all over the place. Its not smooth like a slipping clutch. I have never observed this happening before.
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Old 10-09-2007, 07:03 PM   #16
bren wrx
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Quote:
Originally Posted by gabedude View Post
he did not adjust the ETC to hold the throttle open till fuel cut.

Gabe
yup thats it right there
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Old 10-09-2007, 09:02 PM   #17
Equilibrium Tuning
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Quote:
Originally Posted by SinistiR View Post
When I view the gear ratios instead of power and torque in WinPep. At the same time power drops, the gear ratio goes crazy and ossilates all over the place. Its not smooth like a slipping clutch. I have never observed this happening before.
That sounds odd... possibly just a dyno issue. If you can do a couple on-road pulls I could plot them in my road dyno for you

-- Ed
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Old 10-10-2007, 12:35 AM   #18
wuuusaa
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Quote:
Originally Posted by virpacalis View Post
That's right.
how did you get that to mate up? i thought cobb dp's are full 3'?
got pics of exhaust set up?

thanks
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Old 10-13-2007, 12:03 AM   #19
virpacalis
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Quote:
Originally Posted by ol'skoolwrx View Post
how did you get that to mate up? i thought cobb dp's are full 3'?
got pics of exhaust set up?

thanks
No pics, no leaks, clean fit. It mates up to the OEM stuff exactly.
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Old 10-13-2007, 12:12 AM   #20
virpacalis
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Because of responses to my original post, I asked Andy to look at my car again. His professionalism and helpfulness are most impressive. He offered to strap it down again and do a few more pulls. The car is still nice and quiet but even quicker and smoother. Here's what I ended up with:


Last edited by virpacalis; 10-15-2007 at 09:31 PM.
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Old 10-13-2007, 01:29 PM   #21
JDubD
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I had my car tuned by Andy and the results were amazing. With a tbe and equal length headers, he tuned open ecu for 295awhp and 378lb/ft of torque. Not to mention almost 300 miles per tank. I know this is a little off topic but Andy is an excellent tuner with alot of knowledge. Just my .02
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