Swifty's never-ending project thread!

[FattyBoomBatty]

No one's buying highly modded cars anymore either, so you have to stick with what you have for the time being.

[At-Least-It's-An-Evo]

Then, sort out this god-forsaken revving issue!

:cough: COP :cough: / DIS-23443543345

[Kevin 1G Drummer]

I noticed on Saturday you seem to have a bit of a studder in the middle of your RPM range. I know you were talking about having a problem that you couldn't rev up any higher, but any ideas what's causing the studder? I also noticed that you're getting alot of backfiring on decel. Maybe need to take a little fuel out when the throttle is closed? It pops more than my bike does. haha

[Swifty1638]

ya, I think I need a revisit to shane. Seems that usually you go lean when decel, or more-so lean under part throttle, but I think he made it more on the rich side, for smoother throttle transitions with these injectors?

[scheides]

I've never heard someone bitch so much in my entire life about a 500 something HP car jeez...

Maybe try some new tires????

LOLOLOL! EPIC! It is so true!

[Shane@DBPerformance]

1600s and an AEM EMS don't mix. The AEM is very bad at running those junk ass injectors made for CNG. You can't fix mechanical and electrical problems with tuning.

Put a factory ECU on the car, some good injectors, and a factory ignition system on it and have a chance at a decent running car. If you really want to run 1600s, then either run them as secondary injectors on a second rail or run a factory ECU. I have had some luck with the DW 1600s, but the usual Ford/Bosch/PTE/FIC ones were not orginally designed for normal fuels and they do not respond in a linear fashion(sometimes more IPW gives less fuel).

[Swifty1638]

oh yea, I'm not complaining about the tune at all shane, know that. It works, and feels safe. And, for part throttle inputs, and the shit I have on the car, like that q45, once she warms up, she drives just fine. No stalling when I come to a stop, the cams lobbing a way, and I enjoy the looks I get. I'm more-so trying to figure this bunk-ass revving issue. ARG!

[MustGoFaster]

Valve springs.

[Shane@DBPerformance]

Throw in a MunchGSX stage 1 motor.

[Swifty1638]

yea, we will see if it's the valve springs or not. I just cannot believe that they would be THAT fricken' accurate, as to "failing/floating" at EXACTLY the same rpms!