Car stumbles under WOT at 4200-4500 rpms. I'm stumped....

[94 Cobra R]

jwm3786 any info from your tuner.. I have an appt. at 2 this afternoon

Let's just say, holy thread resurrection. Did any of you get anywhere with these problems? I'm having the issue at WOT in 3rd gear and it just started. Gonna do a data log but it'll have to wait til the end of next week

https://www.svtperformance.com/threads/car-stumbles-under-wot-at-4200-4500-rpms-im-stumped.846827/

 

[blwn03sonic]

Intercooler pump was my issues. Pulling timing with temps in the 200’s


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[94 Cobra R]

Intercooler pump was my issues. Pulling timing with temps in the 200’s


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Whew! Didn't have a gauge on the IAT2??

 

[blwn03sonic]

Whew! Didn't have a gauge on the IAT2??

No sir. I’ve since replaced pump and upgraded heat exchanger everything’s cool now. Can’t log that pid cause my tuner used a different Strategy on my car. Aeroforce interceptor ftw


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[Tifosi2003GT]

Let's just say, holy thread resurrection. Did any of you get anywhere with these problems? I'm having the issue at WOT in 3rd gear and it just started. Gonna do a data log but it'll have to wait til the end of next week

https://www.svtperformance.com/threads/car-stumbles-under-wot-at-4200-4500-rpms-im-stumped.846827/

I actually couldn't get my car to run on Ngk's and had to switch over to Autolight copper plug and it worked like a charm

 

[MG0h3]

That's peak torque area.

Fuel ok?

Ignition ok?

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