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-   -   restoring a factory 90's imsa gtu racecar (https://www.rx7club.com/race-car-tech-103/restoring-factory-90s-imsa-gtu-racecar-1107254/)

GreenMachine 02-25-17 01:51 PM

Will this car be racing at Knox mountain hill climb?

Or your other king of the mountain!

Alpine 02-25-17 02:33 PM

looking good ! where do you plan to race this thing?

racingdriver 03-26-17 08:21 PM

https://cimg1.ibsrv.net/gimg/www.rx7...328657dc24.jpgWing , splitter, windows, diffuser, fasteners, tail lights, canards installed
https://cimg3.ibsrv.net/gimg/www.rx7...0aed34f7a0.jpgFlat bottom front to back ensures plenty of clean air to the carbon fibre diffuser.
https://cimg5.ibsrv.net/gimg/www.rx7...442a2aedc5.jpgIt took about 10 hours to set up the suspension. I forgot to disconnect the swaybars so I could have done it in 8 hours. Camber , toe, control arm lengths were all out of spec as everything had been apart at one point.

racingdriver 03-26-17 08:31 PM

https://cimg5.ibsrv.net/gimg/www.rx7...0e96cc472f.jpgMade the screen out of stainless
https://cimg9.ibsrv.net/gimg/www.rx7...4a09a2ecb1.jpgIt took a while to get to these numbers. The front started at 300/700 lbs. This is not the total weight as the hood was off.
https://cimg0.ibsrv.net/gimg/www.rx7...485a616536.jpgThis is the weight with about 40 litres of fuel. 40 litres is about 65 lbs so the weight of the car is about 2060 pounds.
We will race the car in the Pacific Northwest this year and the Knox hillclimb in 2018.

racingdriver 03-26-17 08:39 PM

The wheel weight were with a driver. The total weight was with the big muffler which is 30 pounds heavier that the smaller unit . And no driver btw. The used fibreglass bodywork required a lot of prep and fillers. I'm sure down the road we will change the tail, hood and nose to carbon fiber and lose at least 50 pounds. That would make it just under 2000 pounds with no driver.

Narfle 03-27-17 12:18 AM

What a work of art!

Gilgamesh 03-27-17 08:47 AM

Does this thing have to breathe through a restrictor? Is that what I am seeing with the intake airbox to a rubber duct to the restrictor?

MaczPayne 03-31-17 02:25 AM

Amazing. Thanks for taking the time to share with us this awesome piece of history!

Did you find it a pain to take pictures while packing those bearings with grease? Haha.

racingdriver 04-10-17 11:54 PM

https://cimg7.ibsrv.net/gimg/www.rx7...c9383165af.jpgMost of the decals are on. Brake lights are working now, fire system done, seat belts in.
https://cimg8.ibsrv.net/gimg/www.rx7...9efb801757.jpgAir filter installed. No restrictor.

Valkyrie 04-12-17 09:43 PM

With all the bodywork on, it's really hard to imagine that it's basically a prototype racecar underneath.

racingdriver 07-25-17 04:54 PM

We had to rebuild the fuel cell . We should be on the track next month. https://cimg9.ibsrv.net/gimg/www.rx7...e915efabe8.jpgLots of foam to prevent fuel slosh. Internal surge tank is cool.
https://cimg0.ibsrv.net/gimg/www.rx7...cc2f8d1b4b.jpg

racingdriver 08-06-17 07:54 PM

Took the car out for the very first time . A few items left to do and it's ready for the first race weekend. https://cimg1.ibsrv.net/gimg/www.rx7...51cb0cd4de.jpghttps://cimg3.ibsrv.net/gimg/www.rx7...7af09906c4.jpg
https://cimg4.ibsrv.net/gimg/www.rx7...b581a410e8.jpg
https://cimg5.ibsrv.net/gimg/www.rx7...d969b3ca04.jpg

gracer7-rx7 08-08-17 11:48 PM

Woot!
I hope there will be videos!

Rx Seven 08-17-17 08:23 PM

Wow..... Thanks for sharing!

I also hope there will be lots of videos. I love the build and beeing able to see the car progress. :icon_tup:

racingdriver 09-09-17 12:30 PM

https://cimg7.ibsrv.net/gimg/www.rx7...668688bd44.jpg

our first race weekend at mission raceway

https://cimg2.ibsrv.net/gimg/www.rx7...c1141c3ab5.jpg

the car qualified on the pole

https://cimg4.ibsrv.net/gimg/www.rx7...a1181d45eb.jpg

finished 2nd in the race. the handling is amazing.

racingdriver 09-10-17 06:46 PM

some in car footage. Unfortunately there wasn't a great spot to mount the camera .


MaczPayne 09-11-17 05:56 PM

I'm in love

Quickshoeracer 09-19-17 12:24 PM

Wow! That's a lot of quality work and a beautiful result.

Valkyrie 09-23-17 03:56 AM


Originally Posted by racingdriver (Post 12214977)
some in car footage. Unfortunately there wasn't a great spot to mount the camera .

https://www.youtube.com/watch?v=gH6hooIMMWA

Fix that camera angle, stat!

racingdriver 10-16-17 12:18 AM

https://cimg6.ibsrv.net/gimg/www.rx7...ee41011b34.jpgCar is running great and ready for 24 hours of racing . But I have decided to sell it.
https://cimg7.ibsrv.net/gimg/www.rx7...071319f3e7.jpgCar is for sale . $89,000 USD

Carl Byck 11-05-17 04:57 AM

Extraordinary...
Restoring a Rotary Engine IMSA or similar car has long been on my bucket list, thanks for sharing this with us!

racingdriver 02-27-18 01:04 PM

New price : $79,000 USD

Freeskier7791 03-02-18 09:53 AM

GLWS! Awesome car, looks great on track

racingdriver 08-26-18 02:15 AM

new price $69,000 USD.

gracer7-rx7 09-03-18 01:02 PM

^what are you selling?


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