First EB Driveshaft shop CF driveshaft!!!

[Firepath]

Pretty sure the confusion is coming from free-revving response VS in-gear response. It (driveshaft) won't do anything for free-revving response.

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[wproctor411]

I had over 50 passes on the car and my 60 foot times were just about identical after I got enough seat time. I took the car to the track twice after I installed the DS and I could not improve my time over my best passes. It was my experience with one. I am not opposed to them, but if I am going to spend a grand on a speed part, it had better show a return with no effort.

Mike

p.s. I would not consider a manual car a good candidate for bracket racing where the consistency of an auto with a brake and delay box is what you are looking for.

I have a good method but the MT82 isn't ideal for stick drag racing. I took my best E.T. and took about 8/10ths second off to get a bracket time. At first it helps having a two way radio and spotter checking your times at the 1000' mark. I can run low 11s with slicks but ran a 12.20 dial in both times I bracket raced. I can run regular 12.20-12.22, 5000 rpm launch in 2nd gear, so you shift only 2 times, and depending on the atmosphere conditions and time of year, the last few hundred feet of track make up the rest by speeding up or slowing down. I had a 100 shot just in case I needed it. 15 Years ago I could bracket race within a few 10ths of my best E.T. but I can't shift, feather or side step the clutch like I could back then, and I was using a TK0600. If your slicks lose the sweet spot the 60ft times start to vary (combo of temps and tire pressure).

 

[wproctor411]

Curious, how does a ds increase throttle response? Push on pedal, engine revs...never heard drivetrain being part of the equation...?

My experience w/ Al shafts is that they're good for a tenth or so depending on application. Noticeable reduction in NVH, however.

CF ds is too rich for this po' boy.

Less rotational mass has something to do with it.
I also have a lighter flywheel so the combo is really helping spin the engine faster.

I'm not sure why the shift effort was reduced unless something was wrong with my OEM driveshaft - it felt clunky before.

 

[Herr_Poopschitz]

No one has answered. By 'your' (generic - those trying to educate me) definition titanium lugnuts increase throttle response...yes or no? Decreasing vehicle weight increases throttle response...yes or no?

'I' (get it...'I'? Probably not...) work w/ moment of inertia on a daily basis...pretty basic concept. It can be manipulated to reduce the amount of torque required to overcome it, but this doesn't, in my eyes, have anything to do w/ 'response'. Instead these are forces and acceleration.

I guess I see response as a controls (in the engineering sense) function. Acceleration is something altogether different.

 

[Full-Race Geoff]

'I' (get it...'I'? Probably not...) work w/ moment of inertia on a daily basis...pretty basic concept. It can be manipulated to reduce the amount of torque required to overcome it

AGREE. here is a good visual video explanation of inertia:

http://www.pinkbike.com/news/e-thirteen-finally-answers-the-age-old-question.html

this doesn't, in my eyes, have anything to do w/ 'response'. Instead these are forces and acceleration

http://en.wikipedia.org/wiki/Transient_response

 

[Hendrix-Engineering.com]

There's not going to be much difference in weight between the carbon and aluminum .what you will get with the carbon is a quieter cabin and more importantly more rotational twist which lessens the shock on the drivetrain.

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