http://store.summitracing.com/partde...rt=PWT-1810-LR

Has anyone heard of or used one of these. I was looking into getting one. It doesnt look like any of the lockers thati have seen, but the price is certainly better then the ones the ive seen.
Matt

 

I'm running one on my 8". Compared to my brother's no-slip Powertrax, I think mine is quieter. Both tires hook up everytime in straightline and lock when heavily gassing it through the corners.
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I've heard they're borderline unsafe in wet weather. They give the car a tendancy to snap oversteer with very little throttle in a corner. Granted, you'll get this with most locking rear ends, but I've heard that it's a little more unpredictable with the Powertrax units.

I was originally considering one for my 8.8" build, but have since decided to save the extra money for a Detroit TrueTrac unit.

 

I'm running a Powertrax, and the only issue I have with it is that it can cause driveline slap if you get off the clutch real fast in a low speed tight radius turn, such as a parking lot. Other than that, it's great. And I've found it to help a LOT in the wet weather, but how well the vehicle controls in wet weather is also greatly a function of suspension setup, and especially tires.

 

If you drive it much I hear lockers can be a bummer and wear out tires and stuff

I think you would be much better of with this http://store.summitracing.com/partdetail.asp?autofilter=1∂=DTL%2D912A580&N =700+115&autoview=sku

You never know its there until you need it. Applies nice even power in drifting turns and in straight line burnouts always equal amounts of rubber on the ground. Best of all it never makes any noise and engages very smoothly...Even better yet it functions just like an open differential under normal driving conditions and wont wear out tires or put undue strain on driveline components. To boot its gear driven and will not wear out like clutch packs.

-Gun

 

Gun the powertrax operates the same as the true track in that it isnt locked all the time, so its not as bad as a full spool.

I like the true trac. to those guys using the powertrax is it noticeable when it engages powering out of a corner?

 

A little, depending on how sharp you turn. Since it goes into a full lock, it generates push the same way a spool does. So if you're doddering through a turn and jump on the gas, or power when coming out of a turn you may feel the car push to the outside as it generates some understeer. Again, it depends on how tight you're tunring and where you are at in the turn when you power out. You notice it at first on curvey highway roads, but I've gotten so used to it I almost don't notice it, except like I said, the real slow tight turns if I get off the clutch quickly. It's pretty quiet too, just the occasionaly mechanical clink.

 

ok understeer was a real problem with the spool but better with the truetrac...sounds like the powermax is more like the original styledetroit locker without the banging. the truetrac is a bit more idiot proof but you'll get more out of a locker if you can drive it well

 

Since I primarily drag race the Powertrax does me fine. If I'd known about the True Trac at the time, I may have gone that route. It also needs resistance to work, so if a tire spins that side simply unlocks and you run on the other wheel. Very few parts like the True Trac as well, and no clutches etc, so nothing to wear out. And it's made from a Titanium alloy of some sort, so breakage isn't really an issue. I'm not sure I'd run it in a car that's regularly road raced though.