Ok, so I ran my car at the 1/4 mile last night. When I drive on the street its not very noticeable at all but under hard shifting my car bogged really bad. I think it was leaning out but I'm not sure.
Anyway, i thought I'd post up my info and see if you guys have and suggestions.


for injectors I got gsl-se primaries (680)
and 1680 secondaries
stock FPR and walbro 255lph pump

thanks.

 

To me those pulses look too small.

I have mine set to TPSdot with the default rates, but with 4,3,2,1 top to bottom, and the engine runs very responsively.

300 kpa/sec isn't actually a very hard acceleration, so you're probably going way over that.. I'd set one to the max megatune will let you put in there, and make that 4, then set one 25% lower, make that 3, etc...

Ken

 

I just posted the settings in case some of them are jacked. It seems like MS will let me set super high numbers like 1,000 kpa/sec, so should I do something like that or do you think 400 is good? Also for drag racing do you think thats its really nessicary to install a TPS? or have people had sucess useing the map?

 

Some people have had success with MAPdot. Mike Robert was one of the original people to do that.

You'll really have to experiment with hard stabs and the max numbers for MAPdot until you get it right. I've never used MAPdot on my rotary, so I don't really know what a good value is for the top number. I was just saying that 300 seems a bit low.

Ken

 

I have something to add into the mix. I'm using a Series 5 Turbo intake manifold and throttle body, which has hand the secondary butterflies removed as well as the thermowax and some other stuff. When I did have the car on the road if I stabbed no matter how rich I seemed to make the enrichment the car would always cough with a stab of the throttle. I figured it was a lean misfire (or even a proper backfire out the intake) because by the next engine cycle would almost definitely run ridiculously lean.

Other than throttle control is there anything I can do?

 

Are you sure you're not running so rich that it's misfiring? A misfire will show up as "lean" on an O2 sensor.

I am running a "stripped" throttlebody and the narrowband TPS, and my accel enrichments are TINY compared to everyone else's that I have seen. My accel bins are .5/1.0/1.5/2.0 with a .15s time period, and it never bogs or stutters even if you stab the throttle once past 100% on the TPS. Weird.

It *used* to stutter when the time was .5 sec. Way too much

 

You can also get a situation where your enrichments don't start quick enough, causing a lean spike... Making the threshold more sensitive can help this (as long as you don't go too sensitive).

Ken

 

cool, i did what ya'll said and that help alot... mine were way too high.

 

Thanks!

I will try those settings in a few months when i get a chance to get the car back on the road.