turbotuner20v

The low hp run was filter on, the high hp run was filter off actually. The Dallas Performance inlet seems to be doing a pretty solid job. It looked grey and dirty compared to new, so I figured I'd pull it and see if it was part of the problem while I was on the dyno.

One other thing I forgot to mention - I'll have to test to make sure, but unless my closest station switched to E85 lately, this pull was also on E70 fuel w/ the E85 tune in. Timing advance is the same betwen the two tunes, it just has fuel tweaks (hence running rich here).

I'm also on the stock plug wires, just with the metal boot things pulled off.

I need to get w/ my tuner to get an E70 map done anyways, so I'll swap the plugs and check some logs and then hit the original dyno and see where it's at.

SERB Z06

iTrader: (6)

PM'd you....

I don't think retuning for E70 is worth it at all...you might see some slight drivability improvements but I really don't think it's worth the time and money

Detoxx03

iTrader: (14)

Absolutely correct. Always get SAE numbers and correction factor set on 5.

turbotuner20v

STD and SAE both correct for weather, just to different degrees, hence the STD numbers being higher than SAE. Most dyno shops around here use STD with smoothing 3 it seems like for better numbers, so I just roll with that to keep it consistent and not always have to check and swap the correction before printing.

SAE j1349 correction:
29.23 in/hg.
77 degree temp
0 percent humidity

Standard correction:
29.92 in/hg.
68 degree temp
0 percent humidity

turbotuner20v

Forgot to update, it was the plugs. Went back to the dyno and it made the power back and was smooth. Guess I'll just have to change them out every 1,500 miles or so.

skinnies

iTrader: (33)

Post a pic of the plugs, the NGK BR7EF should go a LONG time.

turbotuner20v

Already threw them out unfortunately... they all looked good though, maybe a touch rich looking at the base ring. It's the same plugs I used since the first start up, so they've been through the break in, 1st real tune, couple race events, and lately had been run on E70 w/ the E85 tune ~mid -10's:1.

turbotuner20v

I did forget to check the gap on them when I pulled them out to see if they opened up... do you have to check gap on yours when you use them a while?

skinnies

iTrader: (33)

Nope, the 7's seem to do great, my ltd hated the 8's, not sure why. I ran the 7's for almost a full year without issues.

The Alchemist

iTrader: (19)

Whatever the reason, glad you figured it out.