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03-06-2013, 02:59 PM | #7151 |
Scooby Guru
Member#: 133146
Join Date: Nov 2006
Location: SC
Vehicle:07 FPgreen 7.37@95 WRX VF39+E85 12.0, 121mph |
It never blew up, so I guess yes . Like I said those rods had 60k miles and I never had an issue.
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03-06-2013, 03:16 PM | #7152 |
Scooby Guru
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:06 Wrx RWD Auto 76MM-AEM-2200's |
yeah had to be a good tune then. I know you didnt idle it around everywhere!
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03-06-2013, 04:08 PM | #7153 | |
Scooby Specialist
Member#: 5591
Join Date: Apr 2001
Chapter/Region:
MWSOC
Location: Westerville, Ohio, USA
Vehicle:2002 WRX EJ257 Gt35r |
Quote:
How much boost were you running? |
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03-06-2013, 04:13 PM | #7154 | |||
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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Quote:
Quote:
That's one reason why "engineering" a 100% perfect fuel system is beyond the capability of just about any one person who doesn't have a large budget. As end users and enthusiasts we usually accept that there are always going to be quirks of some sort with our heavily modified, high horsepower density engines. Quote:
I've found an average of 2.5-3* at peak torque more than pump gas is sufficient. Obviously other things affect the octane sensitivity of an engine so it isn't going to be a fixed value for all setups. However, for stock engine VF turbo cars after 3* you don't get an appreciable gain in power. That's really the key. If you gain 10-15hp with 1 degree, that's great. If you gain 5hp with 1*, take it back out. 5hp is not worth the risk and is an indication that you are approaching MBT or a knock threshold. I would bet that 15-17 would be acceptable on your car, but I don't know all the specs. I always forget your comp ratio is so high. I bet that thing is just a beauty to drive. |
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03-06-2013, 04:24 PM | #7155 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
I ran 17 at peak torque on my PTE 6262 2.5L tune.
After the dyno, While running the 1/4 I bumped the redline timing to around 27 from 23, and picked up 4 mile/hr trap speed The car was picking up about 15-20 per degree on the dyno. I didn't try and find the threshold. I stopped at 17. I probably left some meat on the table, but with 100mm bore and eagle rods i did not want to risk it. The car made 464/445 corrected for June 110 degrees in the dyno room. |
03-06-2013, 04:26 PM | #7156 |
Scooby Guru
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:06 Wrx RWD Auto 76MM-AEM-2200's |
hmmmm, so you dont like the idea of fuel feed line y'ing into two feed lines feeding the rails from the front. 2 returns y'ing into fpr's return?? mps
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03-06-2013, 04:31 PM | #7157 | |
Scooby Specialist
Member#: 193757
Join Date: Nov 2008
Chapter/Region:
MWSOC
Location: Cedar, MI HP Techs MPS-SSLR2.5
Vehicle:2006 XTI Limited OBP, Junior tuned 573WHP |
Quote:
Heading to PnL on Monday to have Jr do a touch up on the tunes and to be fair! He's given me 3 sets of revised maps since the initial dyno tune!! |
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03-06-2013, 05:18 PM | #7158 |
Scooby Specialist
Member#: 103631
Join Date: Dec 2005
Location: Mililani, Hawaii
Vehicle:2004 STI Gray |
When I see values like that, I attribute it back to process (steps) and the method used to increase the timing. I could be guessing, but I'm wondering if the tuner selected the load columns above vacuum (all of them) off the basemap and just used the arrow key and went up in increments instead of increasing specific cells and interpolating vertically to smoothe out the points. Did a pull and then noticed the torque increasing in the upper rpms and kept doing it till diminishing returns. It seems that way since all values follow the same slope as the basemap but +9 degrees or so.
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03-06-2013, 07:01 PM | #7159 | ||
Scooby Guru
Member#: 133146
Join Date: Nov 2006
Location: SC
Vehicle:07 FPgreen 7.37@95 WRX VF39+E85 12.0, 121mph |
Quote:
What is an acceptable timing at redline? I am only running 19.5* at 7500rpm with 24-25psi. I imagine around 26*... Quote:
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03-06-2013, 07:19 PM | #7160 |
Scooby Newbie
Member#: 266208
Join Date: Dec 2010
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Hey thank you thank you! We are learning every day and hope to make it another good season. I'm blessed to have a fellow competitor who pushes the limits with us at our blistering altitude and is willing to help us along the way. We hope to offer any help we can back to Cameron as well! I've been keeping my fingers crossed for a gtx4094R to come out!
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03-06-2013, 07:43 PM | #7161 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
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03-06-2013, 07:44 PM | #7162 |
Scooby Guru
Member#: 133146
Join Date: Nov 2006
Location: SC
Vehicle:07 FPgreen 7.37@95 WRX VF39+E85 12.0, 121mph |
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03-06-2013, 07:46 PM | #7163 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
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03-06-2013, 07:48 PM | #7164 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
I have a 6 speed with no dccd controller. It spun 1st 2nd and mist of 3rd. That cant be good for trap speed.
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03-06-2013, 07:48 PM | #7165 |
Scooby Newbie
Member#: 266208
Join Date: Dec 2010
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03-06-2013, 08:44 PM | #7166 |
Scooby Newbie
Member#: 266208
Join Date: Dec 2010
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03-06-2013, 10:03 PM | #7167 |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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03-06-2013, 10:21 PM | #7168 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
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03-06-2013, 10:39 PM | #7169 |
Scooby Guru
Member#: 133146
Join Date: Nov 2006
Location: SC
Vehicle:07 FPgreen 7.37@95 WRX VF39+E85 12.0, 121mph |
http://www.bradbarnhill.com/projects/VirtualDyno/
Great tool if it is used correctly . It has been proven to read to ±5% to a real dynojet on the dynojet setting |
03-06-2013, 10:51 PM | #7170 | |
Scooby Specialist
Member#: 114730
Join Date: May 2006
Chapter/Region:
SWIC
Location: Albuquerque, NM
Vehicle:2006 WRX Limited Wag 9.8@150 |
Quote:
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03-06-2013, 11:13 PM | #7171 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
Lol. I used virtual dyno. But the tune I was referencing was done on a mustang here in phoenix.
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03-06-2013, 11:59 PM | #7172 | |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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Quote:
Am I confusing those plots with a different car I helped you with? |
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03-07-2013, 12:05 AM | #7173 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
That was the car. My legacy. Those were mustang graphs, your timing advice was spot on.
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03-07-2013, 12:14 AM | #7174 |
Former Vendor
Member#: 190729
Join Date: Oct 2008
Chapter/Region:
NWIC
Location: Marysville, WA
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03-07-2013, 12:25 AM | #7175 |
Scooby Specialist
Member#: 23123
Join Date: Aug 2002
Chapter/Region:
SWIC
Location: Gilbert, AZ
Vehicle:15 WRX 6MT 07 Legacy SpecB |
I never put it back on the dyno, but it wouldn't surprise me if it picked up that much.. it certainly felt much more powerful up top with the extra timing.
I have since converted the car back to pump gas and wastegate pressure. The wifey is driving it now so it didn't really need all that power. The five o 1400 top feeds sucked. They were okay, but not great on e85, but wouldn't idle or maintain decent afr corrections on pump gas at all. |
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