Ok,
I've spewed this a few times now. I've got the 30-40KPA and 50-60KPA values down pretty well... Engine idles at 58-61KPA. Now in order to get the higher values of the KPA ranges, what would i need to do. I've basically disabled the TPS threshold as Tim has, that way i never get into PE. I live in the flattest place on earth. I was discussing this with a friend and we MIGHT even put a hitch on my car and tow things around just so i can get some load on my car for tuning!
(seriously)
Anybody have any ideas at all?
One other thing, how drastic does the MAT change your values?, i have been reading that the weather does affect your tuning ALOT, earlier today(80degree/f) it was running, same chip later tonight it runs a little bit richer all around the band, thats pretty much normal right?


Brendan

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1987 IROC-Z L98,SuperRam,EB 6085's,LPE 219/219 Roller, Crane 1.6RR, EB TPI Base, 58mm TB, ADS 24#, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, MSD 6AL, MSD Blaster 3, Aluminum DS, 94 Disk Rear, Adjustable Valve, Precision 3.73 Gears, Sub-Frame Connectors, Hotchkis Lower Control Arms, KYB Shocks/Struts, Suspension Techniques Lowering Springs, Polyurethan Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm,

To see the ROC, Check out the webpage Here

 

Hahahaha,
I live by greenville,
anyway looks like you need to spend some time at the I70-75 interchange area. That's were I do some of my drivibility stuff.

MAT just covers things for temp., and while relocating it might help a little, I'd suggest leving where it is, and try more tuning.

Going from 60 to 100 K/Pa, you'll want to pull timing out, and in the VE tables add fuel.

Starting at like 2,400

58 cc heads drop the WOT timing down to 36-28 degrees

64 cc heads drop to 32-34

76 cc heads 34-36

THESE ARE JUST ROUGH NUMBERS
the intake valve closing point will have a huge effect on those numbers

At less then 2,400 you might even run negative numbers for timing depending on your converter and weight of car
HTH

 

When in a REAL pinch you can *attempt* to use the brakes to hold the car back while reving at a particular rpm. I have done this on several occasions and it works out ok (not great ... but ok)

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

Tim,
The brake theory works very well(costs pads alot though)
Oh well. I'm thinking that a trailer hitch is going to be the best route.. seriously. I think i can get a direct bolt on and then use the near by state route to get data.

Brendan


PS, i'll have to get some pictures of the car with the trailer on it ;P

[This message has been edited by leirch (edited May 27, 2001).]