RPM limiter on FOX body.

[CBZGT50]

I have a nice 93 Cobra that I just aquired. I also have a 95 Cobra Coupe. In the 95 I can get it up to 6000+ before the rev limiter kicks in, but in the 93 it bounces at 5000-5200. The tach colors are bearly in the yellow before the revs bounce. Is this correct for the Cobra fox body? Do I need to get a power commander of some sort to up the rev limiter? Any help would be great.

 

[kck6894]

I have a nice 93 Cobra that I just aquired. I also have a 95 Cobra Coupe. In the 95 I can get it up to 6000+ before the rev limiter kicks in, but in the 93 it bounces at 5000-5200. The tach colors are bearly in the yellow before the revs bounce. Is this correct for the Cobra fox body? Do I need to get a power commander of some sort to up the rev limiter? Any help would be great.

I am not 100% sure but I thought all the limiters were close to the same place at around 6200.

You might ck and see if it's an ignition problem. Could just be a bad set of spark plug wires.

 

[HISSIN50]

The tach probably is leaving something to be desired.

As for the SN95 redline, seems to me that Paul and others have reported a true (per logging) 7K RPM limiter. I have no info to confirm that.

Stock fox puter does limit at 6250, but I dont know if the cobra puter has a slightly higher limiter.

Are you not running out of lung at 6000 RPM anyhow?

Good luck.

 

[darthcual]

I agree with hissin, what is the seat of ur pants telling you that way you know if its the guage or another problem.

 

[CBZGT50]

The 93 just doesn't run as hard in the top end because right where the serious power band is, the limiter bumps it. Maybe I am just not used to driving a fox. I have had two SN95's. One a Cobra (still have) and the other a 95 vert.

BTW the 93 is clean and perfect. Maybe the clutch is different to me and it just revs faster than the SN-95 with a king cobra clutch vs. the stock ford disk and plate. I was just asking incase anybody knew.

 

[Kerpal]

I'm kind of thinking possible ignition problem as well, when was the last time the car had a full tune up?

When I first bought my car it would die out at 5000-5500 rpm. Felt like a rev limiter kicking in, but in my case the ignition components were original so it was obvious that was the problem.

 

[TenorPlayinGuy]

yup.... just cuz the limiter is that high dont mean you can actualy HIT that high. I have issues getting above 5400 but I know for fact its my fuel pump... poor little thing... gonna bite the bullet soon

 

[QDRHRSE]

Stock tachs are crapolla. Either get a shift light or an aftermarket tach.

 

[tjm73]

All 5.0 H.O. EFI engines are limited to 6250rpm.

I've seen over 7000 rpm on my '90 Mustang GT. Like someone else said the stock tach is crap.