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> Out with the old...in with the new...Britain's Racecar Development, Subaru Engine, Lotus Suspension! Time to go racing!
dian
post Sep 11 2012, 02:06 AM
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i just read the whole thread. thanks for sharing. my question regards the engine. you mention jdm version8 spec c. what exactly is that, as jdm seems to be selling stock used engines. and what turbo are you using? it is an exellent mach for the motor.
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FourBlades
post Sep 11 2012, 06:41 AM
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This is one of the all time 914 World threads... (IMG:style_emoticons/default/piratenanner.gif)

Stuff I never knew was even possible made to look easy and fast to accomplish, but I am sure not cheap. (IMG:style_emoticons/default/happy11.gif)

John
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Britain Smith
post Sep 11 2012, 11:16 AM
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QUOTE(dian @ Sep 11 2012, 01:06 AM) *

i just read the whole thread. thanks for sharing. my question regards the engine. you mention jdm version8 spec c. what exactly is that, as jdm seems to be selling stock used engines. and what turbo are you using? it is an exellent mach for the motor.



The JDM Spec-C engine was a limited production engine produced for the Japanese market. It was a 2.0L with various internal upgrades like counterweight/nitrided crank, large port heads, different pistion, twin-scroll turbo, no emission, etc. There were different versions over the years with version 8 being the one that I got. Because of the limited production (i.e. ~900/year) and the fact that it had little emissions other than a cat, owners in Japan are required to change the engine after 5 years and therefore there is a surplus of these engines that are then imported into Canada and sold to people in the US.

That is how I understand it.

-Britain
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Britain Smith
post Sep 11 2012, 11:18 AM
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QUOTE(FourBlades @ Sep 11 2012, 05:41 AM) *

This is one of the all time 914 World threads... (IMG:style_emoticons/default/piratenanner.gif)

Stuff I never knew was even possible made to look easy and fast to accomplish, but I am sure not cheap. (IMG:style_emoticons/default/happy11.gif)

John


Thanks! I will tell you one thing, I would argue that it is the best handling 914's out there.

-Britain
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Britain Smith
post Oct 8 2012, 12:58 PM
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Hey Guys, the Where2Race Motorsports Porsche 914 ran the 2012 Siskiyou Club Fall Enduro this past weekend, taking TTOD and setting the XP class track record at 3:42.007secs (beating the previous XP record by 10secs). I was less than 3secs off the overall track record set by an A-mod and with a little aero improvement and some more aggressive driving I think I could have gotten it.

Here is a video of my run.
http://www.youtube.com/watch?v=Iy2kCsOYFyc&hd=1

With only one shot at the course, you can't afford any mistakes so I ended up driving a little conservative as you can see with my early braking points. You also go out "cold turkey" so that first lap is challenging as the tires and the brakes get up to temp. Either way, it is a great event and can't wait to give it another try next year.

-Britain
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Woody
post Oct 8 2012, 01:49 PM
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That looks like a bunch of fun. Real tight track, is it a cart track?
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Britain Smith
post Oct 8 2012, 01:57 PM
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Go-Kart Track.

http://www.where2race.com/venues/view/medford-kart-track
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FourBlades
post Oct 8 2012, 05:52 PM
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Congrats on the new track record!

You have some real driver skills, looks bumpy and challenging.

John
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Britain Smith
post Oct 8 2012, 11:48 PM
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QUOTE(FourBlades @ Oct 8 2012, 04:52 PM) *

Congrats on the new track record!

You have some real driver skills, looks bumpy and challenging.

John



Thanks man.

It is actually not as bumpy as it looks....however it is challenging to get it right for 5 laps in a row. My last two laps were my fastest ever around that track.

-Britain
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DBCooper
post Oct 9 2012, 10:37 AM
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Very cool Brit, congrats. My son set the record in Street Prepared at that same track eight or ten years ago, a VW Ghia with a 2.0 T4 motor. I remember everyone liked the track, different than most autocross venues. Looks like fun.
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Phil Plummer
post Nov 4 2012, 07:53 PM
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QUOTE(396 @ Dec 6 2010, 11:01 PM) *

Very very nice! I can only wish I had the skills to do what you've just accomplished!

Once done..your going to kick some A with that set up:)
Congrats and good luck!

Hi: can anyone tell me where I can find a well priced oil cooler for my 914/6 conversion??? the front bumper is a 916 type. I need an oil cooler that fits well.-Phil
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Elliot Cannon
post Nov 5 2012, 09:29 AM
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QUOTE(Phil Plummer @ Nov 4 2012, 06:53 PM) *

QUOTE(396 @ Dec 6 2010, 11:01 PM) *

Very very nice! I can only wish I had the skills to do what you've just accomplished!

Once done..your going to kick some A with that set up:)
Congrats and good luck!

Hi: can anyone tell me where I can find a well priced oil cooler for my 914/6 conversion??? the front bumper is a 916 type. I need an oil cooler that fits well.-Phil

Send a PM to bdstone.
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Britain Smith
post Nov 5 2012, 10:14 AM
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QUOTE(Phil Plummer @ Nov 4 2012, 06:53 PM) *

QUOTE(396 @ Dec 6 2010, 11:01 PM) *

Very very nice! I can only wish I had the skills to do what you've just accomplished!

Once done..your going to kick some A with that set up:)
Congrats and good luck!

Hi: can anyone tell me where I can find a well priced oil cooler for my 914/6 conversion??? the front bumper is a 916 type. I need an oil cooler that fits well.-Phil



Interesting Hijack!
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FourBlades
post Nov 5 2012, 12:19 PM
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Dang! I was hoping there would be some more good stuff on your car!

Is the season over for you?

John
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Britain Smith
post Nov 5 2012, 12:27 PM
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Yep...season is over. I have some things planned for the offseason...stay tuned.

-Britain
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Britain Smith
post Feb 14 2013, 04:37 PM
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Couple of updates of what I have been working on. There is going to be a nice addition going on next week and I will post those pictures then.

First, I decided to strip the multiple years of undercoating, grims, etc. out of the fender wells. A quick coat of primer and they look much better.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1360881470.1.jpg)

Rear fender well stripped and primed. Gotta add another fender support that will go out horizontally just before the wheel opening. I hit a few cones this last season and actually cracked both rear fenders.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1360881470.2.jpg)

hated the duez fasteners that were holding the front hood on so today I replaced the outside four with Aerocatches. I had to redo all the mounting brackets and cut holes in my carbon hood, but overall weren't too bad to install. They are very nice parts, pricey, but nice.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.ak.fbcdn.net-364-1360881470.3.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-364-1360881471.4.jpg)

Aerocatches on the front bumper. I will fill the old DZUS holes and clean all that up.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-364-1360881471.5.jpg)

Front fenders freshly painted and mounted. I also cleaned up and spray painted the inner fender wells to match. It is much cleaner and brighter in there now.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1360881471.6.jpg)

Front view of freshly painted fenders mounted, aerocatches in the hood and front bumper. Need to replace the splitter, I have to source a new supplier for Alumacore or Alumalite.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1360881471.7.jpg)

Degreased and powerwashed the engine today. The JDM intake manifold looks so much better with the engine clean.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1360881471.8.jpg)

That is a lot of yellow. The car is all cleaned up and ready to hit the dyno next week for a retune.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-364-1360881471.9.jpg)

-Britain
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tscrihfield
post Feb 14 2013, 07:23 PM
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Looks awesome! I really like your attention to detail!

Thomas
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Britain Smith
post Feb 19 2013, 11:12 PM
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Well, if I can't make it go faster, I might as well make it pretty. Painted the cage in the front and sprayed some yellow on sheetmetal.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1361337126.1.jpg)


Then...Murphy's Law strikes again!! Getting the car ready for a dyno session on Thursday so I took a few laps around the block only to find oil squirting off the back of the motor. See the hairline crack just above the banjo fitting. This is the AVSC line on my engine.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1361337126.2.jpg)
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Britain Smith
post Feb 20 2013, 11:51 AM
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Oil line tig welded shut this morning, now to reinstall tonight and re-bleed the radiator.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1361382695.1.jpg)
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Britain Smith
post Feb 22 2013, 12:57 PM
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Took the car down to Cobb Tuning Surgeline for Dr. Tim Bailey to work his magic on tuning the car for the new injectors and more boost. Overall the session went great with the engine running well and no major issues.

Here is the car strapped down to the dyno.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1361559455.1.jpg)

I had to take off the driver side rear fender in order to get an A/F meter on the exhaust which exits out under the car.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-364-1361559455.2.jpg)

At higher power levels we were dealing with significant rear wheel spin. We ended up with 3 jugs of water in the rear truck to put weight over the rear wheels.

(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-364-1361559455.3.jpg)

Here are the final dyno plots. At 18psi, we are making 335whp and 305ft-lbs. This is on a Mustang Dyno which notoriously measures low. Either way, the hp is fairly linear all the way up, we reach full boost pretty quickly, and the torque curve is nice and flat where we want it.
(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-b.xx.fbcdn.net-364-1361559455.4.jpg)

I am working on video and will post it soon.

-Britain
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