redline stutter

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Mar 27, 2024 | 10:46 PM

p0p_sm0k3

Thread Starter

Cruising

Joined: Sep 2022

Posts: 12

Likes: 2

redline stutter

I have a 16 stage 3 cam m7 666 to the wheels. I was getting on it and when i would get close to redline it would stutter then go away and again close to redline same thing. Next day I ripped it at the light and then SERVICE rear axle light came on. Started back up and came back on. Im thinking i need to change the spark plugs. Any ideas? and if spark plugs should i do coil packs as well? if so what spark plugs should i go with and coils?

Mar 28, 2024 | 11:38 AM

96GS#007

Race Director

Joined: Apr 2000

Posts: 15,344

Likes: 4,009

From: Texas

You need to log what's going on, otherwise you'll just be guessing and shooting the parts cannon at it.

Mar 29, 2024 | 10:35 PM

gordoni

Instructor

Joined: Apr 2023

Posts: 191

Likes: 124

From: Pacific Northwest

Are you hitting the rev limiter?

Mar 30, 2024 | 07:00 AM

Dcasole

Le Mans Master

Joined: Oct 2014

Posts: 8,673

Likes: 2,728

From: Atlanta GA

Quote:

Originally Posted by 96GS#007

You need to log what's going on, otherwise you'll just be guessing and shooting the parts cannon at it.

^^^^^^^^^^^THIS^^^^^^^^^^^^^
It could be a million things , plugs maybe , wires , maybe , fuel preasure , maybe , valve float , maybe , knock retard , maybe, coils highly unlikely....

Don't shoot the parts cannon at it .... log the car and see what's going on
Dave

Mar 31, 2024 | 05:31 PM

Citation

Racer

Joined: Mar 2016

Posts: 442

Likes: 157

From: Sayre PA

Check the small gauge ground wire at the battery. It needs a really clean connection. Many symptoms from that wire. Service rear axle is top of the list.

Apr 9, 2024 | 03:24 PM

LT1GMC

Drifting

Joined: Apr 2000

Posts: 1,390

Likes: 36

From: INDIANA

Need to log, keep close eye on fuel pressure. Good chance its running low at top rpm, have seen that a few times, especially if no upgrades with mods you have done.

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