2006 gpgt. Mods: headers, 1.9 rockers, AL104's, 3.2 pulley, #60 injectors and e85. Fuel trims are within 5 when cruising and zero out at wot. 11psi at wot. Timing advance 16.5-17 wot, 28-30 cruising. Seen some blips of kr up to 1.2* at the beginning of the wot pulls but I'm pretty sure it came down as I got deeper into the pull. Any thoughts?
checking to see if my scans sound ok
- Thread starter Army2005
- Start date
Fivefingerdeathpunch
New member
With no scan to look at, I can't give my opinion.
You can't directly post HPT or DHP scans here which kind of sucks, maybe do it as an attachment??
If it's only around 1º of knock total I wouldn't even care. That's not enough to cause any damage or make you worry that it's going to blow up. You could reduce timing by 1 degree and see if it goes away or just leave it.
And 28-30 at cruise is pretty low, you must have sloped it down alot. I ran a hybrid timing table, basically a 2005 GTP table with my 2000 GTP table put together. More overall timing out of boost with closer to stock timing in boost area's. I was running upwards of 35-38 degrees on the freeway and get fuel mileage.
You can't directly post HPT or DHP scans here which kind of sucks, maybe do it as an attachment??
If it's only around 1º of knock total I wouldn't even care. That's not enough to cause any damage or make you worry that it's going to blow up. You could reduce timing by 1 degree and see if it goes away or just leave it.
And 28-30 at cruise is pretty low, you must have sloped it down alot. I ran a hybrid timing table, basically a 2005 GTP table with my 2000 GTP table put together. More overall timing out of boost with closer to stock timing in boost area's. I was running upwards of 35-38 degrees on the freeway and get fuel mileage.
Stock 05 tables will keep you in the mid 30's to 46* of timing at cruise and 18-19* at WOT. Did you change any of your timing tables? I'm running stock but on E85 and I am not having any issues with KR at all during a pull. If I downshift while at a cruise without letting the TCC unlock then I might see .5* of KR as it releases but that's it.
Jeff
Jeff