kinda basic question??? Grady maybe

FINALY, I have the 94 back up and together...got the last PITA issue fixed (alt. was not getting a ground threw all the powdercoat).

I have a question about the J4J1 speed limits. When I set up my speed limits I did the 16xxx thing and have been looking at some of the what seems to be "newer" info. Is this the correct way to kill the speed limits on our processor?

Last year I was having an issue with my J4J1 tune at the track, with a VERY basic T4M0 tune with only the inj. changed for the 24's very basic with the 24 and 24 x's 1.2 for slopes and checksum set to 0. I picked up like 3 tenths and 3mph with the 100% stock timing tables and 10* base.

Now I know I had some valvetrain issues that I sorted out. However, I have been thinking the speed limit kill info thing was kinda old and might have more for the fox stuff and not the same for our 94-95's. Picking up so much from such a basic file has me thinking I have mine setup wrong as the drivability is great but WOT perf. was soft.

Nothing else I had messed with on the J4J1 should have caused this other than what I found out about the breakpoint/slope being a mix of J4J1 and T4M0 issue that I think had the major roll...just want to make sure its not the speed limit as well.

Sorry for the long read...and thanks.

sorry, scaler

speed limit stage 1off
speed limit stage 1 on

speed limit stage 2 on

speed limit stage 3

WOW, maybe this also is a miss-communication then...if you dont know what the speed limits are on the j4j1 maybe its something to just not mess with? I am going to run a log tomarrow morn and see whats up with the rough tune I have now...might make a quick change and remove the speed limits then.

Mine are all the same at 16384, I will change it to match your current one and see if it helps.

Thanks as always .

31* at 2000rpm and from 4000-5000 its at 30* in both top two rows in the base and alt. table (useing both)

Fuel is set to 12.901 or 12.89 (commanded 12.8 but it reverted to 12.9).

I really have not messed with it yet...will for sure tonight. Preatty sure the issue was the breakpoint and slope was a mix of t4mo and j4j1 style (j4j1 breakpoint and t4m0 diff. slope) THat is fixed with a t4m0 breakpoint and slope style.

Just want to make sure, as the info I got the speed limit stuff from was quite old and like you posted didnt want to run into another fox setup or wrong info thing.

No wideband yet . The biggest reason I have the timing on the lower side. I have 93 avail. at 90% of the stations around...then QT (local-ish chain) just dumped there prem. to 91 (but I only get there gas as a last resort). I smoothed out my chambers so that should help fight off the det. also. Depending on the production var. of +/- 2cc on the heads and the smoothing I am around 10.33 and 10.66 to one on compression...so I deff. want to keep it lower until I double check the A/F. On the old stock maf it was dead on from the dyno session...diff. stock maf now so who knows...I think I may be the only person running a 98 GT maf on a 94 GT.

I REALLY REALLY want to get a WB to double check things...I am not going to say anything but hope things go as planed this time...yeah right .

Was going to log some tonight while I had it out...started raining and the wife and I just went to dinner and a movie instead we were going to have dinner and go hang with our own friends for the night...good date night .

Drove it at least 50-60 miles and well over 1hr. Not one single issue...even got into a little scuffle with a WS6...he didnt catch me on the hwy on the top side...but there was traffic in the other 2 lanes so I am not claming anything. It did good though at WOT in the 4th and 5th gear (before rain started BTW). Got cought at at least 20 lights and not once did it surge or bobble at idle, no bucking or surging at part throt. or mid load either.

Only thing I can complain about is I NEED to do some susp. work...thinking about selling my SSM bars for something more mild. Had ALOT of fun and doing what I missed the most just having fun with it.

I agree 110% grady I NEED A WB...I have saved up the money 3x's over the summer...just ended up having 8 (yes 8) weddings to go to I was in 2 and had 3 bach. parties...then the 10 day vac. we took to NC in the middle of that. Really ate up the budget for the WB. I do not want to guess and will do the check K's thing on the CL for the non-WOT areas...but yes to those who are watching/reading GET A WB. I may just duck out and at least go to a dyno for a pull or two to check at least until I get one...hope its not that long though.


The info on the "Fuel Enrichment for WOT" would be great Methodical, I never messed with that so its stock in that regard. I do know its diff. than the gt tune.

Thanks, guys.

final5-0 said:

Yes Sir



IIRC it starts at 90mph on GT files and 120mph on the GT flavor.


After I found that function ... I promptly killed it

Grady

Click to expand...

typo or is there 2 for the gt file? what one is the cobra mph?

and

how do you go about killing it?