red93spyder

iTrader: (1)

I am having a miss fire under full load in higher RPMS. My AFRs are not going crazy and are rather steady. I know the tune is not so great right now. It's a MSPNP2 I installed a couple weeks ago and have been trying to understand the manual and all aspects of tuning this. My car is a 91 with 96 engine with 265cc tan tops, MAF is gone, and I do have a VTPS installed. AEM WB02 as well.

I have a turbo setup and rx7 550 high imp injectors I would like to get on the car but I want to get much more versed in tuning this and understanding exactly what all of my changes are doing. Math is not one of my strong points either.

Techsalvager

Fix your warmup enrichments, you are taking fuel out. WUE should be at 100% once you are done adding extra fuel for warm up.

Your issue is your decel fuel ammount is 2, change it back to 100 for the time being, also your injector dead time is way to much for thsoe injectors. I would start around .8ms and retune.

Fix WUE, injectors dead time, decel fuel ammount

red93spyder

iTrader: (1)

Wow, instant fix. The car drives 100x better. The table is so much smoother now after VEAL for about 35 minutes. Thank you.

red93spyder

iTrader: (1)

here is how the tune is as of now.

Techsalvager

cool, probaly needs some tuning on acceleration enrichments but looking good.

Techsalvager

are you planing to use the 550's as low impdeance injectors or with resistor packs?

red93spyder

iTrader: (1)

The pnp rx7 550s aren't pnp?

Techsalvager

sorry I thought you said low imp rx7 injectors.
yeah rx7 550 high imp injectors are pnp
for those I would use around .75ms injector dead time