Help on Analyzing Powerlogger file
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turbo nasty
Turbo Dojo / MNTR
- Joined
- Jul 19, 2001
- Messages
- 9,478
First off a signature would help with what you have.....Year of car...stock or not....turbo ....Alky injection, Chip, translator, Turbo, etc etc???
Off the hip...if that was a WOT hit its a little rich... ...max boost looks like 20 ish psi.
TPS sensor is low for WOT should be 4.4 or better at WOT.
105 mph and didnt see the 3rd gear switch acknowledged in the ecm. You have the trans connector plugged in on the side of the trans?
Off the hip...if that was a WOT hit its a little rich... ...max boost looks like 20 ish psi.
TPS sensor is low for WOT should be 4.4 or better at WOT.
105 mph and didnt see the 3rd gear switch acknowledged in the ecm. You have the trans connector plugged in on the side of the trans?
ok, this is what i see
No Wideband,--- i would get one as well as a WB chip for easy tunning
TPS needs to be set correctly. Right now your at .46 at close throttle and 3.46 at WOT, i like it at .44 idle and 4.60 WOT, dont exceed 4.80
Looks like a stock cam car, make sure when you do these WOT pulls to leave it in D you don't want it shifting into OD. you can chop the throttle around 5100
MAF looks good
Coolant Temp looks good
IDC looks good
Looks like alittle false knock on the shift. Also don't let it shift to forth. not sure if thats real or false at the end of the run. it might be real since its at 20psi in 4th which is the most load. im guessing you dont have alky or anything. no sig so im guessing here
Alternator/charging system looks weak but still ok
o2's look like its on the rich side, if you get a WB sensor we can see the true A/F. tunning off 02's suck
Looks like a TT chip.
Hope this helps. Thats all i can see. not sure of the setup but i would lean it out some. however i would get a WB sensor first
No Wideband,--- i would get one as well as a WB chip for easy tunning
TPS needs to be set correctly. Right now your at .46 at close throttle and 3.46 at WOT, i like it at .44 idle and 4.60 WOT, dont exceed 4.80
Looks like a stock cam car, make sure when you do these WOT pulls to leave it in D you don't want it shifting into OD. you can chop the throttle around 5100
MAF looks good
Coolant Temp looks good
IDC looks good
Looks like alittle false knock on the shift. Also don't let it shift to forth. not sure if thats real or false at the end of the run. it might be real since its at 20psi in 4th which is the most load. im guessing you dont have alky or anything. no sig so im guessing here
Alternator/charging system looks weak but still ok
o2's look like its on the rich side, if you get a WB sensor we can see the true A/F. tunning off 02's suck
Looks like a TT chip.
Hope this helps. Thats all i can see. not sure of the setup but i would lean it out some. however i would get a WB sensor first
Sorry I didm't give you more info. The car is an 87GN. It has a stroker motor built by Weber Racing. It also has Razor's alky. Just to give you a little background, after the motor was built by Weber we took the car to the track and proceeded to blow the headgasket and destroy a piston. We got that fixed then took the car to one of the best tuners in the area, took it took the track and blew the head gasket again. Fortunately didn't destroy anything else. The Razor alky kit was installed after this. Before the Razor's kit we had an SMC. We seem to always have a problem with knock. When the car was tuned it was making over 500 rwhp at 20 lbs of boost, but at the track knock again. Finally got the powerlogger installed to see what is going on. I'm thinking that maybe there isn't enough fuel, so we turned the boost down at the track yesterday. I thought we had around 17-18 boost. If you want more details on the motor, I can give it.
More info on the car. The cam is not stock. It's a 218/212 billet roller. Also has GN1 iron ported heads, TE67GT turbo (not bb), girdled, just about everything, built/billet trans with Art Carr 9" TQ, 60 # injectors, Terry houston 3" downpipe, RJC power plate, stretch intercooler, hotwire kit, etc.
turbo nasty
Turbo Dojo / MNTR
- Joined
- Jul 19, 2001
- Messages
- 9,478
Whats the dial on the alky control set at?
I can't believe you spent all that money on a motor like that and aren't running a wideband!! 
How can you expect to tune it properly????? It's not surprising you keep popping it. Since it's a Weber built motor, do you even know the compression ratio? I'm betting it's higher than you may think.
How can you expect to tune it properly????? It's not surprising you keep popping it. Since it's a Weber built motor, do you even know the compression ratio? I'm betting it's higher than you may think.- Joined
- Feb 18, 2006
- Messages
- 10,084
Looks pretty good. Rich but safe. How does it feel?
I think my son had the alky set to 7. We were going to lower it this week.
His last run last week, he ran 12.3. He said it felt pretty good. Just gets very cautious when he sees the slightest bit of knock. Afraid to break something again. We just want to tune to no knock and have some fun.
Don't know the compression ratio. Maybe it's in the documentation from Weber but I couldn't find it.I can't believe you spent all that money on a motor like that and aren't running a wideband!!
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