Log Plots of EVO 8; Do they look OK?
Log Plots of EVO 8; Do they look OK?
After a lot of reading I decided to go ahead and make some changes to my ROM. Right now the car has full, TBE, Works Drop In Air Filter, Walbro 255 Fuel Pump, EVO IX MR DV/BOV, JDMMAP and ECU Boost with GM 3 Port. Lean Spool is disable.
Anyone care to comment on two of my plots. One is a 3rd Gear Pull (2400 to 7600) and the other is acceleration from 1st to 4th all the way to redline in all 4 gears.
Do the logs looks OK? Is it safe to drive it like that? I am running 93 octane with an AFR about 11.4. Timing goes from 2~3 at peak load and 14~15 at redline.
Here are the logs:
All this is on the street. I am trying to schedule a visit to a dyno but no dyno close to where I am. Comments are welcome. No drag or road race on this evo just daily drive.
Anyone care to comment on two of my plots. One is a 3rd Gear Pull (2400 to 7600) and the other is acceleration from 1st to 4th all the way to redline in all 4 gears.
Do the logs looks OK? Is it safe to drive it like that? I am running 93 octane with an AFR about 11.4. Timing goes from 2~3 at peak load and 14~15 at redline.
Here are the logs:
All this is on the street. I am trying to schedule a visit to a dyno but no dyno close to where I am. Comments are welcome. No drag or road race on this evo just daily drive.
Last edited by racer135; Jul 1, 2008 at 04:13 PM.
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Joined: Jan 2006
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From: Oxfordshire
Over all that looks nice, but the load is a bit ragged. What does the TBEC, WGDC and BDEL tables look like? Maybe you could smooth it out by modding that. My GM3 port doesn't need to much error correction.
MB
MB
Well that is actually the JDM MAP Boost logs not the load. For the boost error correction I use an interval of 2 maybe that causes the raggedness. I leave the error correction take care of boost tapper. I keep my numbers low so it does not overboost when changing gears.
I had a chance to go to a dyno today. It was very hot day (102.3 F). Anyway the car with the tune above gave:
265.98 HP
265.36 Torque
The dyno read a max boost of 21.11 psi but my JDM MAP read a max of 22.8 PSI. I am not sure which one one is more reliable. Also the dyno wideband was reading a little leaner than my AEM UEGO. On ocassions up to 0.3 higher but I need to look at the logs to confirm.
Area those decent numbers for an Evo 8?
265.98 HP
265.36 Torque
The dyno read a max boost of 21.11 psi but my JDM MAP read a max of 22.8 PSI. I am not sure which one one is more reliable. Also the dyno wideband was reading a little leaner than my AEM UEGO. On ocassions up to 0.3 higher but I need to look at the logs to confirm.
Area those decent numbers for an Evo 8?
I asked the dyno owner and he told me it was a DynoJet. I did not see the dyno type or brand anywhere on it. It was mounted on a trailer. I need a scanner to post the actual chart.
The chart also have this info:
CF: SAE Smoothing:0
SAE:1.01
Kind of weird I got the same number for HP and Torque.
Mods are basically TBE and drop in filter with ECU boost control. What would be the common power output for an 04 on a DynoJet? (The 04 have the smaller turbine). Should I get a custom tune for about $300 plus $100 for dyno time? Or it is not worth with the numbers I have right now.
The chart also have this info:
CF: SAE Smoothing:0
SAE:1.01
Kind of weird I got the same number for HP and Torque.
Mods are basically TBE and drop in filter with ECU boost control. What would be the common power output for an 04 on a DynoJet? (The 04 have the smaller turbine). Should I get a custom tune for about $300 plus $100 for dyno time? Or it is not worth with the numbers I have right now.
