wow, i wish it'll do super sport mode. It already shifts faster than my cusco twin disc in the evo.

 

yes , because the RA tranny tuned for lower rpm and different power curb , which is obvious .
Also the gears have different ratio. So there is many differences from the beginning.
Not to mention the EVo SST has problems even with factory tq level.
I think the Big break trough will be when they can tune and upgrade the SST. Which is coming. So from there the RA shouldn't have any problem to shoot up all away to the Evo level../meaning WHP and WTQ with a necessary mods/

It is not hopeless or i'm talking down. Jut i try to make sure the RA guys will not over hype it and then bang disappointment.

I think the RA is a great car, but some guys want too much too soon.

 

Could you state some sources. Because as far as I know the only difference is the 5th/6th gear ratio (which in this day and age favors the RA). Obviously there will be differences with the TCU, but what else is physically different between the two?

 

No launch control.

 

Is that not part of the TCU?

 

go to mitsubishi. The Tranny tune alone is different. Simply got a differnt tq and hp range different rpm shifts etc.
Only the gear? well, the gearing makes the tranny good or bad.
Like the 03-04 evos 4-5 was long , so there was a big rpm drop. they fixed it in 05-06.
certainly you dont know yet it is a favor for the RA, yet. So because it has less hp and tq i think actually is a disadvantage.

the "same tranny" means the same tranny. the RA is based on the X SST. but not a same.

So when you will gaing TQ on the RA will be interesting to see how the SST will react on it. I think the raised rev limit certainly will be a problem. and i think that will be neccesery because the 6500 rpm just wont do it. Based on my experience with the X.
the transmission will think its some kinda malfunction and can go limp mode.
These tranny's are smart . which is good but some times bad.

 

I have been saying this all along. Since the engines have different power bands, the tranny programming will be completely different. You are NOT doing to be able to load an MR shift program into the RA. It will be a complete cluster.

 

I think that the hope here is that it will be possible to modify the SST in the RA to allow a higher red line and possibly add the launch control / s-sport into it. If the higher red line is possible to program and the engine can be tuned toward that. I would imagine it would come pretty soon. They are adjusting shift points on other electronically controlled transmissions.

Obviously there are differenced between the 2 transmissions, but they are more similar than different. Most likely the only changes are to the control module programing and the different gears. I highly doubt that they would go to the trouble to change much more than that as it would be difficult to overcome the manufacturing costs. Just my 2c.

 

getrag is not an easy tranny to modify . they are awesome as they are. You need to reprogramm the tranny , change the clutch etc to make the RA hold good numbers.
So then actually the question will pop up...
WHy not the X GSR then?
You see, if you get a RA for DD, and light mods . it is a perfect car. As soon as you try to over come the X limits , you will be better off with the X GSR.
Plus you can keep your warranty.

Dont be too optimistic about the SST. the clutch plus job will be easy over 2 grand. And i'm very generous.
Then you dont even touched the power yet.

So i wouldn't upgrade the SST and go thrue all the troubles. Keep the RA on that level what the SST can handle. If you need more then that. Then you are better off with the EVO, period.

Just my opinion.

 

+1

 

Hopefully Bryan has time to update you guys .. its not as it seems now

I just had a quick peek at the RA ROM .. there's more intricate differences than initially believed .. I hope

The injectors are different sized .. there's only 1 boost solenoid compared to 2 on the Evos .. The limiters are better defined than the X's but the values are lower (read MUCH lower)

Standard boost seems to be set for 0.9 to 0.8bar (read 13-14psi tapering to 10psi higher up)

I've only setup the initial tuning tables so Bryan can take up the slack and try them out on the RAs ..

Once I get into the SST tables, I'll know how detuned they are compared to the X's

Editted to add : All is not lost .. the JDM RA's are running mostly Evo stuff .. except for the solenoids .. Seems like the cams are milder on the USDM (not confirmed) versus JDM RA using Evo cams ..

 

While I can't say for certain, I would imagine that the R/A's TCU can be reflashed with the X's TCU program without trouble. This would give the R/A both a launch control, and super sport mode.

 

NO WAY. The power bands in those two cars are completely different and so are the 5 and 6 gears. That would be a killer to put that program in.

 

The different power bands might just cause the trans in fully automatic mode to shift at maybe not the most optimal RPM. I could deal with that to get super sport mode.

Again, I could be totally wrong. I don't know all the different data the trans obtains from the ecu.

 

The Evo is higher revving and more top end based. The RA revs less and is more bottom end/torque related. I don't know for sure, but it just seems like the trans and engine would fight where they wanted to be.