Just ran a new best time thanks to some killer air, see sig, but smoked the clutch the next run. It pulled hard then fell on its face, hit second and it felt like neutral. I just coasted off the track, then got a whiff of burnt clutch. I let it cool down and it got me home. Now question is what is a good streetable clutch that will handle ET streets and a sticky track for more than 20 or so runs?

 

Need I say it???????

*ahem* Street Twin *cough, cough*

 

I dont know anyone who has the ST but from what I hear it sounds overkill for my set up. Then again thats just what Ive heard. What are the pros and cons to using the street twin?

Thanks Kevin

 

Pro: It's not going to slip. Smoothest clutch I've driven. Rebuildable for about $350 or so I believe.

Con: Unless you're on slicks, you're not going to get a very good launch. Known to break anything behind it AKA tranny, rear end, ect.

 

Spec stage II

 

Thanks Fastbird

 

It looks like there is two versions of the street twin, steel flywheel and aluminum flywheel. Which one do most guys use? I know aluminum is not recommended for drag racing applications in most cases but it would seem like a better option to counter the extra weight of the second disk and floater. Any opinions on which would be a better choise for a street/ strip car at my power level.

Thanks Kevin

 

Aluminum flywheels are much lighter and do not store nearly as much inertia as a steel flywheel. This will hurt your launch. Aluminum flywheels are more suited to road racing where engine speed needs to be changed up/down fairly quickly.

 

Actually, if you can compensate on your launch, an aluminum flywheel is beneficial in drag racing. Vizard has even done testing on multiple cars at multiple power levels, and the end result is the same. The gain from the flywheel is worth having to relearn how to launch the car and you will be that much faster.

 

How much gain are we talking for the aluminum flywheel though?? Is the cost/gain ratio worth it though?? That sucker is expensive.