Compound1g
Proven Member
- 58
- 1
- Feb 10, 2019
-
Qualicum beach,
BC_Canada
1). No boost, vac, or exhaust leaks. No noticeable leaks
2). Verify mechanical timing. Fresh timing belt, properly setup
3). Verify base timing. 5°
4). Ignition system. 028, NGk br7es
5). Motor health. Fresh Build, about 1k kms on it
6). Basic throttle body adjustments. Adjusted and tight, TPS is adjusted as well
7). Compression ratio. Je 8.5:1 pistons, but head and block decked, so probably about 9:1
8). Wiring and sensors. All good and healthy, went over the harness and sensors when motor was out
9). No DTC/CEL codes. No
10). Electrical system. Decent battery, and alt seems to work well still
11). Base fuel pressure and injector values. Rx7 550cc injectors, stock 37 psi fpr (for now anyways)
12). Properly calibrated and configured wideband sensor. Aem 30-4110 wideband, seems to log correctly with the analog input option
13). Type of fuel. Shell 91 octane, only option around here
14). ECMlink how-to videos. Watched a ton, but can't find reference to this issue
I'm having an issue trying to get wot tuning correct, I've got start, idle, and cruise damn near perfect, but at wot, between 4k and redline it starts to buck and act like a misfire a bit, not a huge amount, but it feels like a dog when it starts, and makes no power. you can see in the log that the Afr holds steady, but jumps around after 4k, it was a bit lean in this log, but I forgot to include another after I richened it up a bit, but it didn't help, did the same thing, just rich
Ive got boost set as low as I can get it at about 16 psi, and timing is set low so as to rule that out, but I can't figure it out, I've tried leaner, richer, full rich across the board, nothing seems to really change it
The car used to have a tuned emprom chip for this setup, but for the stock 7.9:1 Cr, so it had too much timing for the new higher Cr, hence why I got ecmlink, but it worked fantastic overall, pulled like a bat outa hell, so I know it's not something in the setup, it's a tuning issue, anyone have some thoughts on it?
Build is on my profile
https://www.dropbox.com/s/zs7615n0357q0ok/new log.elg?dl=0
2). Verify mechanical timing. Fresh timing belt, properly setup
3). Verify base timing. 5°
4). Ignition system. 028, NGk br7es
5). Motor health. Fresh Build, about 1k kms on it
6). Basic throttle body adjustments. Adjusted and tight, TPS is adjusted as well
7). Compression ratio. Je 8.5:1 pistons, but head and block decked, so probably about 9:1
8). Wiring and sensors. All good and healthy, went over the harness and sensors when motor was out
9). No DTC/CEL codes. No
10). Electrical system. Decent battery, and alt seems to work well still
11). Base fuel pressure and injector values. Rx7 550cc injectors, stock 37 psi fpr (for now anyways)
12). Properly calibrated and configured wideband sensor. Aem 30-4110 wideband, seems to log correctly with the analog input option
13). Type of fuel. Shell 91 octane, only option around here
14). ECMlink how-to videos. Watched a ton, but can't find reference to this issue
I'm having an issue trying to get wot tuning correct, I've got start, idle, and cruise damn near perfect, but at wot, between 4k and redline it starts to buck and act like a misfire a bit, not a huge amount, but it feels like a dog when it starts, and makes no power. you can see in the log that the Afr holds steady, but jumps around after 4k, it was a bit lean in this log, but I forgot to include another after I richened it up a bit, but it didn't help, did the same thing, just rich
Ive got boost set as low as I can get it at about 16 psi, and timing is set low so as to rule that out, but I can't figure it out, I've tried leaner, richer, full rich across the board, nothing seems to really change it
The car used to have a tuned emprom chip for this setup, but for the stock 7.9:1 Cr, so it had too much timing for the new higher Cr, hence why I got ecmlink, but it worked fantastic overall, pulled like a bat outa hell, so I know it's not something in the setup, it's a tuning issue, anyone have some thoughts on it?
Build is on my profile
https://www.dropbox.com/s/zs7615n0357q0ok/new log.elg?dl=0