Help with tune
Oct 5, 2011, 11:30 AM
#1
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Help with tune
Any input would be appreciated. I have attached 3 Evoscan logs that were done within 40 minutes of each other on same stretch of road. First log shows a little knock but the other two nothing shows. I just want to get opinions on where I may need to make some adjustments. Also included are ignition and fuel maps. Car is Evo 8 with 3" catless tb, 272intake/264exhaust GCS cams, Ingen intake, stock turbo, 93 oct, Hallman MBC @ 25psi, Walbro. Thanks in advance!
Oct 5, 2011, 01:24 PM
#3
That's pretty odd dialing it in on the same road and having that result. Maybe something was loose? As of right now your map looks very choppy and your AFR is swinging super rich at redline...it needs more work. If you're just curious the default answer is do a couple more pulls, drop timing a degree in the knock area and do 3 pulls, then up timing a degree in that area and do 3 pulls. That much knock is probably timing related. If you're trying to learn understood...but I've yet to see someone who was "learning" make more power than a good tuner. I'd contact tscompusa, he's tuned a ton of Evo's (including mine) and done a stellar job on every single one that I've ever seen a review on.
Oct 5, 2011, 03:28 PM
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That's pretty odd dialing it in on the same road and having that result. Maybe something was loose? As of right now your map looks very choppy and your AFR is swinging super rich at redline...it needs more work. If you're just curious the default answer is do a couple more pulls, drop timing a degree in the knock area and do 3 pulls, then up timing a degree in that area and do 3 pulls. That much knock is probably timing related. If you're trying to learn understood...but I've yet to see someone who was "learning" make more power than a good tuner. I'd contact tscompusa, he's tuned a ton of Evo's (including mine) and done a stellar job on every single one that I've ever seen a review on.
Oct 6, 2011, 06:28 AM
#7
Looked like you were on the right track. I've actually attempted the same thing (don't tell Tom) and upped timing/fuel and experimented with things trying to get it to make more power, change my curve etc but in the end I never could make more power 
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Oct 7, 2011, 10:28 PM
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That's pretty odd dialing it in on the same road and having that result. Maybe something was loose? As of right now your map looks very choppy and your AFR is swinging super rich at redline...it needs more work. If you're just curious the default answer is do a couple more pulls, drop timing a degree in the knock area and do 3 pulls, then up timing a degree in that area and do 3 pulls. That much knock is probably timing related. If you're trying to learn understood...but I've yet to see someone who was "learning" make more power than a good tuner. I'd contact tscompusa, he's tuned a ton of Evo's (including mine) and done a stellar job on every single one that I've ever seen a review on.
I'm glad I took your advice and had Tom do his magic. I couldn't be happier. Dyno plot is in the dyno section.
