Out with the old...in with the new...Britain's Racecar Development, Subaru Engine, Lotus Suspension! Time to go racing! |
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Out with the old...in with the new...Britain's Racecar Development, Subaru Engine, Lotus Suspension! Time to go racing! |
Britain Smith |
Dec 6 2010, 11:33 AM
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#1
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Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
For those who don't know me or the car, I have a '74 914 that is a dedicated AX car. It previously had a high compression 2.7 6-cylinder motor and made 205hp/205ft-lbs at the wheels. This set-up wasn't all that bad considering that it won the 2008 and 2009 914 Shootout events, however the quest for more speed continues.
Here is the car in the 2010 season trim. (IMG:http://www.914world.com/bbs2/uploads_offsite/dragracevws.com-364-1291656786.1.jpg) I have recently sold the 2.7L 6-cylinder engine and all the remaining 914/6 conversion parts. I have used the proceeds to fund the conversion to Subaru power. Now most would say that a Subaru conversion can be done on a budget, however I have found that the money goes flying out the window when doing something like this. Regarding the engine...logical choice would be to go for a EJ257 2.5L USDM STi engine. However, all the SCCA rules for AX are built around displacement which in turn dictates the minimum weight. Therefore, I have gone with a JDM STi version8 Spec-C engine which is a 2.0L, twin-scroll, hand ported/polished, 8500rpm animal. I will get slightly less hp and torque numbers than the 2.5L, but save 150lbs of weight. |
Britain Smith |
Dec 21 2010, 03:18 AM
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#2
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Nano Member Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 |
I had the day off work and was able to get a couple of things done.
First off, I had the backside of the fuel tank welded up and some tabs mounted. (IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos.ak.fbcdn.net-364-1292923119.1.jpg) With a set of brackets made, the fuel tank now fits perfectly in the available trunk space. (IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos.ak.fbcdn.net-364-1292923119.2.jpg) I also got the engine back to my garage after having all the exhaust all tig welded up. I added a flex joint in-between the two wastegates to aid in installation. (IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos.ak.fbcdn.net-364-1292923119.3.jpg) Overview shot of the engine...almost ready to go, just a few more things to do. (IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos.ak.fbcdn.net-364-1292923120.4.jpg) Some of you might know, but I have a special 2-speed transmission in this car. In addition, the placement of the header and turbo make it virtually impossible to pass a shift bar through to the transmission. Therefore I have converted to a cable shift set-up. Here is my new shifter I built today. (IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos.ak.fbcdn.net-364-1292923120.5.jpg) I will need to have a pair of small spacers made tomorrow at the machine shop to correctly position the hem joint, but the functionality works. Here is a short video of the motion. Britain's Shifter Motion Finally, I started working on the placement of the pedal assembly. Does anyone have any experience with mounted a set of these on the uneven floorpan. I haven't decided if I want to mount them to the aluminum or just cut out the raised portions of the floorpan and weld in a flat panel. (IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos.ak.fbcdn.net-364-1292923120.6.jpg) More to come... |
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