Clutch compared to quick drive

Hello,
still running a 2 disc 10.7 Crower / B&J 3 speed in my Blown Pro Mod (FIA legal, roots, 20% overdrive). Thinking about changing to a 3 disk or even switching over to a Quick Drive/Converter for next saison. what do you guys think is the best to go for regarding set up and maintenance. Not sure if running a Converter will help us or even make it easier setting up the car driving through shake/spin zone etc.
Thanks, Marco

 

You won't beat a converter as far as maintenance between rounds. Get a good fluid cooler, plug it in after the run and make sandwich.

 

Quick Drive paired with latest and greatest converters seems to be a great combination these days. Converter technology has come a long way and there is more and more data to compare to every day that is also pushing development. And between round service is a joke when you're used to a clutch.

After years as a die hard clutch guy (in no small part because my job depended on it), I've come to appreciate what converters can do. They seem much more forgiving in how early wheel speed(first .5 second) is applied. But just like a clutch, you can get the fluid too hot and lose top end application, especially in 1/4 mile. I believe there is a slightly larger window to the slow side of wheel speed with a converter. As for driving through shake easier or causing less, in some cases it can be even worse with a converter. But the consistency is far greater than that of a clutch, so it can definitely aid in tuning car setups. It definitely isn't any easier to get the tune up right than it is with a clutch either.

I will still contest that unless your rules allow a lockup converter, in the 1/4 mile, a clutch will be faster from the 660' mark on, although converter combos these days are awfully capable of showing me otherwise on occasion. But clutches are messy and a lot of service work, especially in a Pro Mod, not to mention they are considerably more difficult to drive consistently as well.

 

Thanks for the advice Jason,Justin,
I not so familiar with parts I have to use when switching over. Need the quick Drive for sure but not sure if I can go with my Browell bell housing? And is there any better or less quick Drives on the market?
Will stay with the B&J because we never had trouble with it broken sprags or what ever.

 

Hey Mike, thanks for the advice. Pretty sure I will switch over this off saison

 

Hi Marco
sounds like a good move , more and more people have converters . You will need an off board cooler (we made our own). I have a bellhousing that may be of use to you
Wayne

 

Hi Wayne, you run an converter as well?

 

Mike, run a Power Grid jet as well

 

Yes Marco , i have never had a clutch in a race car.

 

sounds good, so we can meet at Santa Pod next week and I can take a look on your trans combo

 

No problem

 

Hello Mike,
Why do you think a Grid is mandatory with a converter ?

 

Doing the same thing with the clutch now ......locking up the clutch almost 100% in the gear changes doing all wheel speed control with the grid .clutch is just alone for the ride. only thing to do between rounds is just cool, and from time to time add some counter weight if its not locking up fast enough. still pull it out every race and grind everything between races.with pre ground packs its about a 1 0r 2 hour job no big deal lol cheaper than the new 20,000.00 lock up convertor and 2-3 speed setup

 

Really?..... I guess it does free up funds for the 25K+ super whammy supercharger and whatever else comes along. Another example of NHRA thinking (or lack thereof).