StangTangGT

im pretty sure its the stock injectors, but ive watched the air/fuel meter and once the blower kicks in the guage just pins to the rich side until i get off of the gas. fuel pressure, that may be a possibility. it has the 255lph in tank and i cant remember how big, but it has a in line fuel pump also. I havent heard of any places around here that have a dyno. it sounds like the best way to go, but is there another 2nd best route i can do until i find a dyno?

Birdieman4

You are a candidate for a programmable tuner or equivalent. If you are going to add mods one by one, a Diablo predator would be better than re-burning a chip. Annother way to do it is to get a timing adjuster, a digital wideband a/f guage, and a MAF tuner. That would give you everything you need to achieve a perfect tune without re-burning. From what you described, your car doesn't sound lean on top, but don't gamble: at very minimum get it to a dyno and find out how 'off' your tune is. A digital wideband could also tell you this.

StangTangGT

what is the diff. between the wideband and the air/fuel i have now. does the diablo predator adjust to the performance settings, and then tweek itself when you add a mod? is that what they recommens for superchargers? what exactly does the predator do?

11seccobra03

The predator is a good chip but i suggest before u go and do that make sure your mass air is is working correctly. We had a few mustangs coming in my shop who were having the same problem and the mass air wasnt working properly. Good luck with your stang

StangTangGT

ok cool thanks but how do i make sure its working right?

yellowstang98

i got a diablo sport 4 bank chip off ebay for 80 bucks and the guy that i take my car to charges 100 bucks for the first burn and then free lifetime reburns. so if you can find a shop that will give u a deal like that then i would get a chip but if you will have to pay each time that u have to adjust something i would go with the predator tuner

Birdieman4

The differnce between an analog guage and a digital guage is that with the digital guage you get EXACT a/f #'s all the time. What this gives you over your current setup is a way to see exactly how good your tune is, anytime, all the time. The predator doesn't adjust itself to your mods as you add them, you have to reprogram it. No big deal, pretty easy. For superchargers, this system is excellent. It is also very effective for adding mods 'as you go'. What the predator does in a nutshell is trick your ecu into believing the signal from the MAS is different that it really is. What this means is the predator allows you to change your timing and fuel flow to accomidate mods; it does a few other things for ya as well, but giving you control of the a/f ratio and timing are the most important factors when adding mods.

StangTangGT

right on, thanks for all the help guys

Sidewayz6.0

If you're getting detonation, and it doesn't sound like thats the problem. But just for ****s and giggles, throw a tank of race gas (Unleaded) in there and see what happens.