3:23 is the gs400 rear end, the gs300 is 3:92. Tire size changes affect top speed the same a rear end changes so that is a factor is well.

The 6spd supra trans could get you 200mph.

 

I went for a ride in Bippu147's GTE swapped GS3 the other day. We hit 150-ish mph and the car kept pulling. We could have gone to 200 if we didn't run out of road. He's currently running the stock GTE 4 speed transmission, stock GS300 rear end. I think you are putting too much thought into this, just swap the Aristo engine and transmission and get a big single and call it a day.

His car has just under 500 to the ground and the transmission is starting to slip now. So at the end of the day you will have to end up strengthening either transmission, but the Aristo transmission will be easier to install and operate than messing around with the POS 5 speed transmission and NON Turbo ECU on a Turbo motor.

 

You can estimate A340 possibilities on the video. 290 km/h = 180 mph, and it not a limit!
http://www.youtube.com/watch?v=n7UuffIej_U

 

Thats insane.

 

nice video

wish i had the skills to do this

 

I probably am putting way too much thought into this. We'll see what happens with the 4 speed and a single turbo I have in mind and go grom there.

 

The main reason I chose to keep the cars on the stock ECU and leave them on the 5-spd auto is so that the car will still work like stock and still pass state inspection. No check engine lights period. This has taken me a LOT of R&D testing and experimenting to reach this point, but I think I've perfected it to pretty much OEM drivability. Anyone who is interested is free to come by and I'll take you for a spin. I'll tell you one thing though, doing it this way is definitely not for someone looking for the easy way out.

If you don't care about doing that then it would be easier to swap in the complete Aristo motorset with transmission and ecu. However, on the 01/02+ cars the wiring harness is completely revamped so that will make a direct plug and play swap(such as the 98-00 enjoy) much harder. This is the main reason I started doing it this way because all of my GS's are 02+ and it was going to be difficult to try and build a whole new harness for the Aristo ECU. So I started my quest on getting all the GS300 components to work properly with boost.

 

Jeff that is one of the more impressive things I have seen in a while! Great work.
A few years back you posted that PFS informed you that one of the limits for the 650 was RPM. That was a curious answer and I wonder if you have confirmed or debunked this?

As you have also stated it is usually torque peak that a transmission must support being. You seem to have the 650 holding 550rwhp which is probably around 650hp engine... guessing in the 7000rpm range? So, what kind of torque is it holding? Since a boosted 4 or 4.3 liter will likely make more torque I am curious what yours is holding as a "factory" driveable boosted V8 would make a bunch of L owners smile!

 

IPT has race clutch sets and valve body and shift kits for the A650E as well as a full race 800hp capable model for $3300. Thats a good deal considering the dealer wants $3400 for a rebuilt unit.