Can Traction Control kicking in cause detonation at WOT/BOOST?

[chief455]

I've been blown since 2005 with 5K on the clock. Defyant Marauder now rests comfortably in the garage with over 85K on the clock. Countless trips at the track and WOT blasts. On occasion, the pilot would forget that wretched traction control button.

Aside from looking like a dork, it has never been a problem!

Nice report card!

I sent an email to Bosch, waiting on a reply.
I believe at this point whatever fuel reduction method the system does is not risking detonation by leaning out, but hoping they will explain exactly how fuel is reduced during TC engagement.

 

[Marauderjack]

How about the "Rev Limiter"........does it shut off fuel or ignition??

Shutting off fuel could really be disastrous on a blower motor!!

 

[SIZEMOREMK]

How about the "Rev Limiter"........does it shut off fuel or ignition??

Shutting off fuel could really be disastrous on a blower motor!!

Seems like if it only cut ignition, you'd end up with a bunch of un-burnt fuel in the exhaust that would likely go boom.

I can see reducing fuel causing big problems going lean; but cutting fuel for some percentage of cycles, I don't see what the issue is. If for a particular cylinders compression stroke, there is no fuel, I don't see the problem?

I have been looking into the racelogic aftermarket traction control unit, and it essentially cuts fuel by some fine tunable rate.

This unit seems quite popular with some Japanese and Euro cars, I see evidence that a guy with a 96 cobra used it, but not sure how it worked out. Also read somewhere that someone used one on a Lightening truck...

http://www.svtperformance.com/forum...e-traction-control-for-the-first-time-tonight

http://www.svtperformance.com/forum...ftermarket-traction-control-(-a-bit-long-read-)

https://www.youtube.com/watch?v=q1D9eANYyBc

https://www.youtube.com/watch?v=TUtoG98NzQs

This definitely has my interest peaked. I actually emailed the company to see what experience they have with these on a ford...

 

[lifespeed]

How about the "Rev Limiter"........does it shut off fuel or ignition??

Shutting off fuel could really be disastrous on a blower motor!!

On fuel injected motors, limiting is pretty much always done by shutting off fuel. They're not going to wash down the cylinder walls with unburned fuel (cut spark only) and blow it through the catalyst.

Turning off an injector for one entire cycle does not alter the mixture, the affected cylinder does not fire at all - just like turning off a spark plug in the carburetor days - without the wasted fuel.

A minor torque reduction can be done by retarding ignition timing. This is often the way it is done in some limiting algorithms that are designed to smooth automatic transmission shifts, for example. But really cutting back the power requires shutting down cylinders and this is done by cutting the fuel completely.

 

[GetMeMyStogie]

Would there be an increase in load on the engine (like when you do a brake stand)? I suppose retarding the engine timing on the cylinders that are firing would counter any load increase.