Mr_Roboto
08-23-2013, 01:19 AM
I'm just looking for a basic sanity check here, I have been dealing with tuning issues that have been anything but and want a clear perspective.
First off, probably should elaborate a bit on my combo. I have an L03 with ported 416es on it (done myself, no flow #s) felpro Blues, a ported TPI base/plenum with stock runners and a set of Cobra 39s. Exhaust is shorty headers into 2.25 that merges into a single 3" exhaust.I'm running Megasquirt II for my ECU doing fuel and spark. Cam is a 91 Y-body/"good" F-body cam.
I've had issues with everything from using a Cold start injector TPI TB on a non cold start injector plenum to burnt plug wires to bad injectors. FP is ~43 PSI and pulls down to ~34 PSI at idle, which comes to 17-19" HG idle vacuum which my ECU confirms. All the plugs are even, and white now. As in the porcelian is brand new looking after 30-40 mins run and a few pulls around the block. I do not have a WB hooked up currently but the plugs tell a ton without even going that far.
Ultimately my question boils down to this:
At below 1500RPM and at the 30-35KPA cells I'm in the low-mid 60s for my VE. Does this even sound sane? It's about 15-20% more than the cells around it, I'm wondering if all the other issues I had are forcing me to add fuel because I wasn't burning it well before. Power drops off like a rock after I leave these cells (it won't go above 1700 or so) and it's really making me wonder if I have other issues still or if I just need to dump fuel into it till she's good.
Pic of the plug. The porcelian looks like that all the way back. I was initially leery it may be that I was running Autolites, but at the same time I guess not. I stuck NGKs in there and I like them better if only because they are about 1/8 shorter which is awesome since my headers are tight around my plugs in a couple spots.
https://static1.pt-content.com/images/pt/2013/08/20130819_165635_zps8504727b-1.jpg
First off, probably should elaborate a bit on my combo. I have an L03 with ported 416es on it (done myself, no flow #s) felpro Blues, a ported TPI base/plenum with stock runners and a set of Cobra 39s. Exhaust is shorty headers into 2.25 that merges into a single 3" exhaust.I'm running Megasquirt II for my ECU doing fuel and spark. Cam is a 91 Y-body/"good" F-body cam.
I've had issues with everything from using a Cold start injector TPI TB on a non cold start injector plenum to burnt plug wires to bad injectors. FP is ~43 PSI and pulls down to ~34 PSI at idle, which comes to 17-19" HG idle vacuum which my ECU confirms. All the plugs are even, and white now. As in the porcelian is brand new looking after 30-40 mins run and a few pulls around the block. I do not have a WB hooked up currently but the plugs tell a ton without even going that far.
Ultimately my question boils down to this:
At below 1500RPM and at the 30-35KPA cells I'm in the low-mid 60s for my VE. Does this even sound sane? It's about 15-20% more than the cells around it, I'm wondering if all the other issues I had are forcing me to add fuel because I wasn't burning it well before. Power drops off like a rock after I leave these cells (it won't go above 1700 or so) and it's really making me wonder if I have other issues still or if I just need to dump fuel into it till she's good.
Pic of the plug. The porcelian looks like that all the way back. I was initially leery it may be that I was running Autolites, but at the same time I guess not. I stuck NGKs in there and I like them better if only because they are about 1/8 shorter which is awesome since my headers are tight around my plugs in a couple spots.
https://static1.pt-content.com/images/pt/2013/08/20130819_165635_zps8504727b-1.jpg