Car cutting out over 6000 RPMS?

[Qcksnk]

Alright guys you can see in my sig what I have done. I have been experiencing car cutting out after shifting over 6000 rpms. I have checked the plug gap which I set at .32. I am running the Autolite XP 103. Could it be the tune? Should I try NGK TR6? Should I change the gap? Any input will help!!!:shrug: Kind of feel like its bucking as if the traction control is on. The tune has it set to be off permanently.

Thanks!!

 

[RDJ]

you are probably hitting your rev limiter.

 

[Qcksnk]

you are probably hitting your rev limiter.

Set a 7k. This is a huge buck. Falling on its face.

 

[Jimmysidecarr]

Can you data log MAF counts?

I don't see a MAF of MAFia in your mods and you have a ported blower with a pretty small pulley, stock MAF might be pegging.

That results in a hard lean out.

 

[Qcksnk]

Can you data log MAF counts?

I don't see a MAF of MAFia in your mods and you have a ported blower with a pretty small pulley, stock MAF might be pegging.

That results in a hard lean out.

Sorry forgot about that. Yes I have the Mafia set on 2.

 

[greengt88]

Pprv?

 

[Jimmysidecarr]

Pprv?

Could be, or even a dirty fuel filter.

 

[Qcksnk]

Could be, or even a dirty fuel filter.

Brand new Fuel Filter

 

[Jimmysidecarr]

Brand new Fuel Filter

Do you have data log capability?

 

[EvilBlack]

Is your PPRV Deleted? Sound like that for sure.

 

[cbr repsol]

Why would you rev it more?....my dyno graph power fell off at around 6200. Unless you have cams , that would change your power band.

 

[Qcksnk]

Why would you rev it more?....my dyno graph power fell off at around 6200. Unless you have cams , that would change your power band.

I do shift at 6 most of the time. Even if I go to 6200 it bucks. I do know that my torque falls off tremendously at 5500. I just want to make sure that this is supposed to happen? I am coming from the z06 world so all new to me:??:

 

[Qcksnk]

Is your PPRV Deleted? Sound like that for sure.

pprv?

 

[Qcksnk]

Do you have data log capability?

Yes, I will try to do this evening.

 

[Jimmysidecarr]

Yes, I will try to do this evening.

Fuel pump duty cycle
&
Volts

For sure, others would help too.

 

[Qcksnk]

Just watched how to fix pprv problem. Could this be it?

 

[Jimmysidecarr]

Just watched how to fix pprv problem. Could this be it?

That was going to be my very next question.. does this car have a pprv delete?

A collapsed line, a burst line, a popped off line or one failed pump, any of those could produce these symptoms.

 

[unit213]

My guess is the tune is way off up top. Let's see some data. Plugs are inexpensive and take about 10 minutes to change. Throw a set of NGK TR6's in just to be sure that it's not the plugs. It can't hurt.

 

[bigmoose]

If you stay in it does it all of a sudden come back alive? If so I would bet pprv. Mine did the same thing you are experiencing. Removing the pprv fixed it.

Sent from my HTC

 

[Posi]

I always thought PPRV was in between shifts and never in a gear under full throttle. At least the 2 times mine did it that's when it happened. If the car is breaking up under a load in gear I don't think it can be the PPRV.

Alternator?