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Old 01-18-2009, 10:15 PM   #51
testes1010
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Originally Posted by Bullwinkle1983 View Post
You using any correction factors on your DLL dynos? What IATs have the recent runs been at?
I never use corrections. The most recent were ambient temps of ~17*F IIRC. Most of the other runs have been in the 30's, I think the stock one was in the 40's. I'll get more runs when it warms up a bit to back the data more.
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Old 01-19-2009, 12:11 PM   #52
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Old 01-19-2009, 03:05 PM   #53
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Originally Posted by testes1010 View Post
I never use corrections. The most recent were ambient temps of ~17*F IIRC. Most of the other runs have been in the 30's, I think the stock one was in the 40's. I'll get more runs when it warms up a bit to back the data more.
Great, thanks! I've found my road dyno numbers can vary by up to 30-40 WHP depending on ambient temp, which is not surprising.
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Old 01-19-2009, 03:54 PM   #54
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Great, thanks! I've found my road dyno numbers can vary by up to 30-40 WHP depending on ambient temp, which is not surprising.
I haven't seen that big of a swing in the past. A local STi I've tested at different points in time and only noticed a ~10whp max difference from +100*F IATs to sub-60*F temps. On my old WRX I saw less than a <5whp difference thru the seasons. Some of the differences on these cars can be accounted for with the Temperature Compensation on the Timing table, 1-3 degrees more timing on these cars during the cold can really make a difference.
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Old 01-19-2009, 04:20 PM   #55
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Quote:
Originally Posted by testes1010 View Post
I haven't seen that big of a swing in the past. A local STi I've tested at different points in time and only noticed a ~10whp max difference from +100*F IATs to sub-60*F temps. On my old WRX I saw less than a <5whp difference thru the seasons. Some of the differences on these cars can be accounted for with the Temperature Compensation on the Timing table, 1-3 degrees more timing on these cars during the cold can really make a difference.
I go from 310 whp at 110F to 360 whp at -35F.

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Old 01-19-2009, 04:42 PM   #56
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Originally Posted by testes1010 View Post
I haven't seen that big of a swing in the past. A local STi I've tested at different points in time and only noticed a ~10whp max difference from +100*F IATs to sub-60*F temps. On my old WRX I saw less than a <5whp difference thru the seasons. Some of the differences on these cars can be accounted for with the Temperature Compensation on the Timing table, 1-3 degrees more timing on these cars during the cold can really make a difference.
Well yes, some. The stock timing comp table only pulls some timing when it gets warm out, but if you actually tune that table, you can get around a 4* swing between 100* and 0*.

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Originally Posted by LittleBlueGT View Post
I go from 310 whp at 110F to 360 whp at -35F.

Yeah, thats about what I've seen. If your tune is set up aggressively, you can really get some extra grunt out of the colder temps.
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Old 01-19-2009, 04:54 PM   #57
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bullwinkle...how is your car running now with the new turbo?
edit sorry to hijack
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Old 01-19-2009, 04:59 PM   #58
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Great man. The 18g sized turbo is much better suited for the 2.5L engine then the TD04. And it's nice having some top end .
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Old 01-19-2009, 05:03 PM   #59
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I go from 310 whp at 110F to 360 whp at -35F.
Haha, thats 145 degree swing in temps ....If it gets to the single digits here, its sets records. However we do see +100*F a couple times a year.

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Originally Posted by Bullwinkle1983 View Post
Well yes, some. The stock timing comp table only pulls some timing when it gets warm out, but if you actually tune that table, you can get around a 4* swing between 100* and 0*.
The LGT actually adds timing in the cold from the factory. If you make your timing map too aggressive during spring/fall temps the cold winter temps correction will push it over the edge in to knock.

Stock LGT Timing Temp Comp table:
Code:
[Table2D]
-40	-22	-4	14	32	50	68	86	104	122	140	158	176	194	212	230
3.16	3.16	3.16	3.16	2.11	1.05	0.00	0.00	-2.11	-3.16	-3.87	-4.92	-5.98	-5.98	-5.98	-5.98
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Old 01-19-2009, 05:10 PM   #60
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Originally Posted by testes1010 View Post
Haha, thats 145 degree swing in temps ....If it gets to the single digits here, its sets records. However we do see +100*F a couple times a year.



The LGT actually adds timing in the cold from the factory. If you make your timing map too aggressive during spring/fall temps the cold winter temps correction will push it over the edge in to knock.

Stock LGT Timing Temp Comp table:
Code:
[Table2D]
-40    -22    -4    14    32    50    68    86    104    122    140    158    176    194    212    230
3.16    3.16    3.16    3.16    2.11    1.05    0.00    0.00    -2.11    -3.16    -3.87    -4.92    -5.98    -5.98    -5.98    -5.98
Nice. Thats about similar to what I change my WRX maps to.
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Old 01-19-2009, 05:27 PM   #61
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Nice. Thats about similar to what I change my WRX maps to.
My ecu added 1deg at 17*F(I have max of 2deg added below 14*F, 0deg above 14*F) was enough to cause knock at redline in one of logs I posted up on 1/17/09. Needless to say 29.5 degrees of timing is enough at redline.
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Old 01-19-2009, 05:44 PM   #62
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glad to hear the vf52 is a good option for a bolt in turbo....i been wanting to get a new snail for my camry sometime soon
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Old 01-19-2009, 05:44 PM   #63
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Originally Posted by testes1010 View Post
My ecu added 1deg at 17*F(I have max of 2deg added below 14*F, 0deg above 14*F) was enough to cause knock at redline in one of logs I posted up on 1/17/09. Needless to say 29.5 degrees of timing is enough at redline.
hehe, yeah that is a lot of timing. My timing comp maps are usually a little more smoothly sloped then the stock mapping you posted. It's nice to have the car add or subtract only .3-.5* as the air changes slightly, instead of 1-2* when it hits just a specific temp range.

But the timing (and WG, for that matter) IAT comp tables are pretty hard to tune. You basically have to wait for the weather to change and then do some logging. It takes awhile, .
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Old 01-20-2009, 05:38 PM   #64
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I cant wait to see trap speeds
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Old 01-20-2009, 05:54 PM   #65
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I cant wait to see trap speeds
Closest 1/8th is ~10 miles away, track conditions generally suck. Closest ~1/4mile is almost 100miles. I only made to the track 4-5 times with the WRX, we'll have to see once spring rolls around.
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Old 01-20-2009, 06:09 PM   #66
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Originally Posted by Bullwinkle1983 View Post
But the timing (and WG, for that matter) IAT comp tables are pretty hard to tune. You basically have to wait for the weather to change and then do some logging. It takes awhile, .
I gave up on those. I just made mine a little more conservative that the stock rom for my daily map and started to pull -0.35 at 104*. Since its over 100* here 8 months out of the year....

for my drag strip map i zero'd all the comps.....i figured it would be safe with 100+ octane and meth spraying.
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Old 01-20-2009, 06:13 PM   #67
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I gave up on those. I just made mine a little more conservative that the stock rom for my daily map and started to pull -0.35 at 104*. Since its over 100* here 8 months out of the year....

for my drag strip map i zero'd all the comps.....i figured it would be safe with 100+ octane and meth spraying.
If you plan to go, let me know. What track is 100 miles away? Bowling green or clay city? I would be up for a trip to clay city
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Old 01-21-2009, 03:21 AM   #68
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^^Phatron lives in Cali, that would be one hell of a road trip for you!
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Old 01-21-2009, 09:10 AM   #69
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If you plan to go, let me know. What track is 100 miles away? Bowling green or clay city? I would be up for a trip to clay city
Bowling Green/Beech Bend.
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Old 01-21-2009, 12:31 PM   #70
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^^Phatron lives in Cali, that would be one hell of a road trip for you!

Quoted the wrong person...

I maybe up for a trip to BG. They have a nice track
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Old 01-21-2009, 12:46 PM   #71
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Doh!!
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Old 01-21-2009, 12:46 PM   #72
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Looks like some nice progress on the Legacy. Good work.
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Old 01-23-2009, 02:55 PM   #73
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What are your IDC at when running 19psi with the VF52?

Are you planning on getting just injectors, or a fuel pump as well?
I'm trying to figure out if 650cc injectors and the stock LGT pump will be ok to max the turbo out (no E85, just 92 pump). LittleBlueGT thought maybe the stock pump would be ok, but I'm just trying to get other opinions as well.
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Old 01-23-2009, 03:08 PM   #74
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^logs with IDCs.

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Originally Posted by yamie700 View Post
What are your IDC at when running 19psi with the VF52?

Are you planning on getting just injectors, or a fuel pump as well?
Peaking out @ 99% but I can afford to lean it out a bit more, I'm still at 11.3-.4:1AFR neighborhood.

The Fuel pump is cheap insurance, so I'd do the FP with any injector upgrade.
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Old 01-23-2009, 03:46 PM   #75
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If you plan to go, let me know. What track is 100 miles away? Bowling green or clay city? I would be up for a trip to clay city
There's a bunch of us that can't wait for Clay City to open back up, all be it a somewhat crappy track. I never been down to Bowling Green, but I've heard its a nice track. Jeremy, looking good with your new turbo setup. Hopfully you can come out to one of the meets this year or hell mayb I can find some time to head up your way one weekend.
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