yes my tranny was done by that tranny guys via Speed Force Racing.same exact thing they did to those 1000+hp supra.which is not daidy beaters but they're weekly drag racer.they also did my TC

 

If you call Kyle he'll tell you that they are still in the development of this tranny and it just sits on their website as a placeholder. The only thing they can offer now is TC/VB upgrade and they have 425whp car running those upgrades succesfully for a while. Our car chewed up two sets of frictions pushing ~440whp.

To All,
Sorry if I came across rude, was not my intension. I just hear all those statements that make it sound like a very easy thing to do. A la get this, install and enjoy. I know from first hand experience that it is not the case. As I said we went through 2 sets of internals, and you can't get them at the dealership separately, you must buy full tranny. So far we're out $10k+ on both trannies and car is not moving.

 

The key in building high HP trannies is kevlar or metalloceramic frictions along with high heat resistance solenoids that are available for Supra applications and not yet available for our cars. At least that's what I hear from all the big shots in the industry. I'll call SpeedForce Racing just to double check on that.

 

MOTOP,

What kind of horsepower can the auto tranny handle and still remain a daily driver. Is 350rwhp still overkill on this tranny with a valve body upgrade? I ask because I just ordered the stillen supercharger for my auto g35 sedan and will be getting the valve body upgrade for the tranny. My research tells me that I should be fine with this setup....ofcourse I could be wrong based on someone else's real hand experience.

thanks
sukhi

 

It is virtually impossible to establish horsepower maximum for any given tranny. Way to many variables. I'd think that you should be fine, but than again, don't quote me on that. Whatever you do, get a tranny cooler and also funds permitting tranny fluid temperature sensor.

 

Bummer! I thought they were readily available!
No worries. . .I didn't think you were rude. I was offereing up what I've seen with respect to our autos besides TCs and VB upgrades to help deal with high TQ and HP applications. . .
Youch! Thanks for being an pseudo-involuntary test mule for us!

 

No problem, although that was not our intention. Especialy given the fact that the car itself is not even on the american continent. What pisses me off the most is the fact that we're going to spend less money on sequential Hollinger for our R34. And it will hold way more than 440whp.

 

MOTOP,

the number I used was actually a number that came out of three different builder's mouths (including Kyle, and reps from Level 10 and Stillen) - in fact, Level 10 was claiming 500whp, but imo, anyone planning to put that kinda power to an Auto G has other issues (no offense TINMAN )

And please don't mistake me for someone that is talking out of their *** - I've been around for quite a while and have been in/out/around this car than you might think... I've seen what works and what doesn't, and that's why increasing power is on hold right now b/c nothing seems to feel comfortable right now - and my money can be spent more wisely than being other's "test mule"...

 

Yeah, I definitely think these guys with their lame 2 speed autos have issues. . .like addiction to speed? But in the end, is that REALLY a problem? Haha! As I like to say it, "don't dis the auto! He just MAY be way the heck faster than you!"

 

bzabodyn,

It all depends on what you want from the car. In our case owner already has 3 AWD turbo cars with a stick, he wants something different.

Back to power levels, all you hear is testimonials, that it SHOULD hold those power levels. Some vendors will stand by their promises, some wouldn't.

We happen to have purchased full Level10 tranny (TC,VB, frictions and all) based on the promise of 600hp and 200mph holding with no problems. We never draged it. We did highway races and that's about it. Everybody was seechless about the tranny operation. Except for it gave up after 500 miles. Car was taken to 175mph only several times.

Complete teardown of the tranny will happen this weekend, but for now, look at the fricking pan, note the metal shavings on the magnet.

 

Ooops, forgot the pic.

 

This is hoow good it was while it lasted.




@ 6500rpm.

 

^^^ HOLY CRAP!!! i took my car to 145 a few times, and i would not want to go up any more... 165 seems suicidal!

 

Question the vaildity of any company's claims when they quote HP levels for tranny components. Why? Because it's easy to claim "handles 600hp". What you need to know is torque capacity. 3 liter V8 FI cars make 800hp, but only 300ft/lbs torque due to the motors ultra high rev nature. Then you have a Viper that makes 500hp and 500ft/lbs of torque from it's 8 liter V10. Which one is has the potential to break the tranny easier? The Viper because it's torque hits very low in the rpms and it's significantly higher in terms of torque production. Automakers rate their trannies in torque, not HP. The next time Level 10 tells you it can hold "X" HP tell them that's neat, but you want to know how much TORQUE the tranny can hold.

As for which to get, I'd say the torque converter and a good tranny cooler and then get the valve body if you want. A torque converter will results in significantly stronger off the line acceleration. With your power levels, the tranny is already going to be pushed to the edge of failure which means the quick shifting valvebody really isn't going to help things.

As for broken axles and such, they should be fine. Automatics do not shock the drivetrain nearly as hard as a manual. This is because you can load the drivetrain prior to launch which removes a majority of the drivetrain slack. With a manual you really can't do this unless. A 4000rpm launch with an auto is far less abusive than a 4000rpms launch with a manual.

 

DaveB,
Very valid statement about torque levels. However in our particular case we were getting 350z/G35 tranny, so 600hp number would be relevant to this particular aplication.