if those numbers are right / ithink they are not whp numbers, they are crank as usual/ , you will exceed the limit, with only :
TBE -intake - boost controller and tune. And thats for me a stage 1 upgrade....

Only with ECU tune, on the BONE stock X, Ivey made 315 whp -312 wtq. Wich is already over the limits ,if those number are true...
SO yes you dont need to buy anything just tune the car to go over the transmission limit??? How reliable that tranny will be then?
So i think those number can't be right.

 

No here is exactly what he said.

"Its hard to say honestly until it starts to get pushed. The factory was saying it will be limited to about 400-450whp before problems start occuring. Until it happens we just have to wait and see. I know it sucks but its just too new of a car."

Maybe he will chime in, but yea its WHP. Trust me at the fly would not make me happy. Bur remember nobody really knows, and I know nobody wants to be the first to break one. I would go to the conservative side till they do. After tranny upgrades become available then you can push it.

 

That's more than the GT-R. You think they really put in a tougher tranny than the GT-R's? Also, I find it hard to believe they wouldn't have a torque-based limp mode well below those figures, so it must assume the TCM will be cracked first. Lastly, breaking the tranny is one thing and those sound like the kind of levels where that might happen. But getting it to last for a reasonable period of time (the length of a car loan?) is another.

Of course, I'm just speculating, but it's my right as a fully-licensed intarweb user. I hope to be proved 100% at the earliest opportunity.

 

If it's just at the flywheel then even just staying at stock power level the SST will not last very long. That would be a huge mistake by Mitsubishi. The MR would end up being a total failure with a transmission that is fragile.

 

I'm pretty sure that the R35 transmission is significantly tougher than that. If it's just as weak as the SST on the X then the GT-R's trans will blow up within a year because of higher torque. A smart car company will over engineer their parts for longevity and reliability.

 

I dunno, 133-150% of stock seems like a pretty reaonable margin for engineering. There's a guy on Evo X who says that Japanese tuners were breaking the GT-R's DCT at 125% of stock (600 hp). I think peoples' expectations that an "automated manual" which is as good for both track use and DD use will be as strong as a real manual need to be adjusted. I've adjusted mine, anyway. Maybe the SST won't allow people to fulfill their Evo super-high hp fantasies like the MT, but it doesn't appear to be aimed at that market niche anyway.

 

In answer to do I really think they put in a tougher tranny in the MR. I don't know, this is just what I was told. But note he said nobody really knows yet. I don't see why they wouldn't put in a better tranny though, last I checked the MR was the more expensive car. I quess time will tell though.

 

Yea I just need about 500 to make me happy, if it will hold up with 500 at the fly thats good enough for me. If it does hold 450 at the wheel then I'll put 400 to 425 on it and be done. I'm not sure why you think it can't be as strong. First this is a manual. Only it has 2 clutches instead off one. Think about a motorcycle tranny. The only differance is instead of you pushing the clutch in, the car does it for you. Don't confuse this with those poser automatics you can shift manually. Hell I can do that with my TH650 in a 77 Chevy pickup. There is no torque convertor, this is a manual. There are other cars with a simular set up and they hold more power than we are talking here. Yea I know but they are race cars you say. I say so is this. I think ferrari also has a tranny close to this as well, same general set up.

 

O' yea I forgot to add, and this is in response to cracking the torque limiters. I was thinking about this today. My conclusion was if you remove that then I think it will break really fast. My other thought was if it will hold 450 at the wheels and you put 400 at the wheels, and don't remove that. I think it might just hold up. 1st through 4th has this btw. I'm not buying mine to drag race so this doesn't bother me.

 

We will have the best idea of what it will hold when someone cracks one open to see what the shaft spacing and individual gear thickness looks like. If the shaft spacing and gear thickness is anything close to what the VIII-IX five speed is (maybe the X's as well) then the gearset itself should be sufficient. At that point it will be up to the wet clutches and I would hazzard a guess to say that the aftermarket will come to the rescue there as it has with the VW/Audi DSG.

 

USP45, I hope your rite. I don't imagine they would screw it up, so hopefully all is well. If they did as good a job on the tranny as they did the new engine we will be good to go. I'm impressed with the new cars so far. Looks like they have a ton of potential. 5 speed or SST, 5 speed or SST, LOL. I don't know what to do.

 

problem is that upgrading clutch packs aint a cheap mod. you'd have to shell out some serious coin to do this, instead of just getting the GSR, a cheaper car to begin with... go figure

what DOES bode well imo is that mitsu can see how the market reacts and upgrade the clutch packs in future models. as long as the important bits are engineered for big power, you shouldn't worry. question is how much faith do you have in mitsu? getrag is a great company but if mitsu is cheap and tells them to use marginally adequate parts, tolerances, clutch packs, etc. then aw shucks eh?

 

Yup, it's all part of the manufacturing cost/benefit analysis. Mitsu and Getrag have been telling us that there isn't a ton of margin for power upgrades on this tranny. Not that will allow you to drive the car until your loan is paid off without having to replace the tranny. Expecting it handle 500 whp is clearly insane and 400 whp is probably enough to get you committed. Why would they overbuild the tranny to the point that it could handle that degree of modification from stock power? With the SST, they are trying to get away from selling cars based on their implied ability to be modded to insane power levels. Even 350 whp seems like it will be pushing it based on the Getrag ratings and signals coming from Mitsu (ie., what they let AMS do and the hearsay discussion with the HQ supervisor).

But I am grateful that others want to find out and apparently have the spare cash to buy a replacement tranny when and if it becomes necessary. Actually, it will be interesting to see what happens with the UK Ralliart SST cars. There Mitsu has the profit margin to justify increasing the amount of power applied to the SST. If they start to offer the FQ 360 with the SST, then we'll know they can at least handle 356 bhp for something near that for the ordinary service life of the car.

 

I don't know, someone mentioned above they were already breaking the manual tranny too. I believe he said at 425 WHP. Looks like a lose lose at that rate. I quess its cheaper on the GSR end though. I think I'll just set back and waite awhile, see whats what. Let the breaking begine :].

 

Seeing AMS put on bolt on parts( exhaust, intake, UICP, LICP, intercooler, MBC) and NO tune. They claimed around 300-310 whp which would mathematically put an estimate of 350 to 360 to the Crank. Now reliability, AMS says the car runs well and i take their word for it that the modifications they put on will not strain the SST transmission.

Now with the tune ( which no one has done yet or someone I'm sure is testing the SST limits). Would prolly push 300-310 whp car to about a good estimate of 350 whp - give or take 10 whp, which then would yield out almost close to 400 to the crank or even more.

Frankly, ppl want 350whp to the 400 whp range with the SST tyranny and ppl will be satisfied.

We'll just have to hope and see. The UK ppl with their MR or AMS will be the first ppl to tell the full potential of the SST tyranny.