1987 GN scan numbers

[87GNwashington]

my quarter number are 13.74@95MPH. Car has TurboTweak Classic Chip v5.7 on pump gas 92 Octane, 60 pound injectors, hot wire fuel pump, upgraded fuel pump, fuel regulator, K&N filter on an after market piping, manual boost controller. Car had all it's work done at GN Northwest. I'm running around 17 on the boost. Just wondering if there is anymore adjusting to get it down to a lower 13's Thanks.

AF 05
L8 37
BAT 13.7
INT 128
BL 126 I HAVE SET FOR 132
CLE 187
ATS 127
RPM 825
TPS .44
IAC 61
CC 81

 

[626gn]

As mentioned in your other post, hard to find much fault in your posted numbers. IAC could stand to be lower but that doesn't affect performance. In addition to the other link I gave you, you should read this one to learn the basics on how to tune http://www.vortexbuicks-etc.com/TuningBasics.htm#Engine_Tuning

 

[Pronto]

What's your time slip look like?

 

[87GNwashington]

What's your time slip look like?

I'm G02 for my time slips

 

[Pronto]

Are you spinning off the line? Are you leaving on boost?

 

[87GNwashington]

Are you spinning off the line? Are you leaving on boost?[

Not spinning I use drag tires. Leaving at about 2300 rpm with about 7 LBS of Boost that's all the front brakes can hold.

 

[aminga]

Turbo and converter?

 

[87GNwashington]

Turbo and converter?

Stock turbo and converter

 

[87GNwashington]

So, anyone else with any advice? Where should I be setting all BL'S?

 

[Pronto]

Leave it at 126. I wouldn't raise the boost unless you up the octane to 100.

 

[87GNwashington]

Leave it at 126. I wouldn't raise the boost unless you up the octane to 100.

Ok there all at 126. thanks by the way.
Next question how much timing retard is bad. At about 16 LBS of Boost I'm seeing around 8-15 degree's.

 

[Pronto]

Ya, don't go WOT with that kind of knock. You'll hurt your engine for sure. You need to do go over everything to find out why you are seeing that.

 

[Pronto]

http://www.vortexbuicks-etc.com/
Read this end to end!!

 

[87GNwashington]

Ya, don't go WOT with that kind of knock. You'll hurt your engine for sure. You need to do go over everything to find out why you are seeing that.

Well, what should I do now? I did put all of the BL'S to 126. Drove it around so the ECM can learn. Park in driveway at idle and BL show 133. Why?

 

[87GNwashington]

number now and its about 95 degree's outside
AF 05
L8 37
BAT 13.5
INT 128
BL 133 THESE ARE SET FOR 126 (1THRU 4)
CLE 189
ATS 143
RPM 850
TPS .44
IAC 68

 

[Pronto]

The adjustments in the chip are for WOT only. You are running a little lean. You may have a vacuum leak somewhere. Where in the boost and rpm are you getting that kind of knock? What is your fuel pressure set at line off? Do you have a hot wire kit and a good fuel pump in it? How old is the fuel filter?

 

[87GNwashington]

The adjustments in the chip are for WOT only. You are running a little lean. You may have a vacuum leak somewhere. Where in the boost and rpm are you getting that kind of knock? What is your fuel pressure set at line off? Do you have a hot wire kit and a good fuel pump in it? How old is the fuel filter?[/QUOT
Fuel pump filter and hot wire are less than a year old. Only been driven for about 3000 miles since installed at GN Northwest. Boost level is about 16 not sure about rpm but I know I'm at around 70 MPHISH if that helps. I don't think I have any vacuum leaks because I changed out with all new hoses.

 

[Pronto]

Fuel pressure?

 

[87GNwashington]

Fuel pressure?

43

 

[87GNwashington]

I want thank everyone that tried to help. Talked with the mechanic at GN Northwest in Everett Washington and was told to leave it alone since my GN is pretty much stock. 13.74@95 MPH is a pretty good numbers. Thanks again!!!!