06-30-2011, 03:42 PM
The mad scientists at Twins Turbo have resurrected this car from a long slumber
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First Startup after hibernation
Dyno
NASA @ Buttonwillow, chasing LS-powered Lister
![[Image: DSC_0585_1.jpg]](http://ll.speedhunters.com/u/f/eagames/NFS/speedhunters.com/Images/Linhbergh%20Nguyen/Features/Twins%20Turbo%20Supra/DSC_0585_1.jpg)
Quote:About 2.5 years ago we started making some suspension changes to the car to try to take it to the next level. We took out what we did to the track to test and, well went back to the drawing board.
Here's what we ended up with:
We started by taking the entire rear cross member, mounts and all, and moved it UP into the chassis by 1.5". This was pretty tricky and we needed to clearance the frame for the tire but it came out prefect.
The idea is not new, and we wanted to "lower" the car without compromising the suspension geometry. Having the mass of the car 1.5" lower helps out dramatically on a track car, but lowering the car too much on the coil overs causes the control arms to begin pointing up towards the ball joint. This will get you into all sorts of fun scrub issues with the radius changing dramatically as the car compresses.
The issue now was what to do with the front suspension? If you look under the engine, the FT cross member is very close to the bottom on the engine, so we were not just able to "move" the front up as we did in the rear. We were thinking of moving the engine back, behind the crank pulley, and that would allow us to move the cross member up. The problem is the engine would need to go back a good 16"+ to clear. That would mean the trans would be back 16", driver would need to go back 16", pedals, seat, on and on. It would be good, but time and cost prevented us from going this route. We even considered using a 4 banger like the 2AZFE, or 3SGTE, but couldn't part with the 2J power.
The solution was in the front hub.
What we did to start is we made a set of Billet Aluminum, 7075 aluminum uber light weight uprights for a drag customer over seas. Those along with our LCA's dropped almost 22 lbs of unsprung off the front suspension. When we made them we moved the wheel bearing up 1.5" to drop the ft some. We took a set of the Billet uprights (we made 2 sets) and created a fixture that would allow us to cut up and re make a factory set of uprights out of chrome molly steel.
We could have used the aluminum uprights, but we were worried about the side load with 12" slicks up front. A drag car just goes up and down. a RR car sees all sorts of different loads in the suspension. We thought steel was a better bet for long term life.
So here are some pics of the current state of the car. Rebuilt engine, new turbo, LCA's, FT uprights, rear cross member.
Hopefully we can make Button Willow in less than 2 weeks from now.
![[Image: 2vv5kj5.jpg]](http://i56.tinypic.com/2vv5kj5.jpg)
![[Image: ips84z.jpg]](http://i52.tinypic.com/ips84z.jpg)
![[Image: 2dv8pr7.jpg]](http://i51.tinypic.com/2dv8pr7.jpg)
![[Image: bjgac5.jpg]](http://i55.tinypic.com/bjgac5.jpg)
![[Image: 110bo0j.jpg]](http://i54.tinypic.com/110bo0j.jpg)
First Startup after hibernation
Dyno
NASA @ Buttonwillow, chasing LS-powered Lister
Current: '20 Kia Stinger GT2 RWD | '20 Yamaha R3 | '04 Lexus IS300 SD
Past: '94 Mazda RX-7 | '04 Lexus IS300 (RIP) | '00 Jeep XJ | '99 Mazda 10AE Miata | '88 Toyota Supra Turbo
My MM Movies - Watch Them Here
Past: '94 Mazda RX-7 | '04 Lexus IS300 (RIP) | '00 Jeep XJ | '99 Mazda 10AE Miata | '88 Toyota Supra Turbo
My MM Movies - Watch Them Here



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Sucks that Unique went out of business and stopped producing them......
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