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Old 03-29-2009, 08:15 PM   #1
MOMSWGN
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Default Suggestions for a 550 replica built (motor and tranny)

http://forums.nasioc.com/forums/show....php?t=1727818

Mid-engine set up. Want to stay away from air cooled. Thanks for the suggestions.
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Old 03-30-2009, 09:28 AM   #2
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you need to talk to matt about transmissions .

if you were going to go stinger ... a ej20kh/j20r (twin turbo) might b an entertaining choice
i have seen it done on a 550 before .. and they are relativity cheap
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Old 03-30-2009, 03:10 PM   #3
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Think if I was to go turbo would stick with a single turbo setup to make piping easier.
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Old 03-30-2009, 04:12 PM   #4
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Hey so I am going to chime in here just a smidge with my buildspecs...
I am building a Type1 chassis with full race cage and a fiberglass body as seen in this concept painting I did just to show a sideshot concept (roof snorkle supports the stock TMIC):

http://cogknow.com/mad1son/jmd_Sterling_handPaint.png

Running an 05 STI EJ25T Adapter-plated to a Porsche 901 5spd.
At the moment my setup is as follows.

Motor:
05 sti with full vehicle harness and stock 05 sti ecu/key/immobilizer/gaugecluster
This choice was based on plug and play usability with the focus being getting it up and running, kinked out and then tune down the road once I learn how to drive the beast.

Tranny:
69' Porsche 901 5spd fully rebuilt with longer gearset, hardened first/reverse and longer 5th.

Adapter:
Kennedy Adapter 228mm flywheel stage 2/3 clutch with ext. bits.

Starter Motor:
Porsche

Rear-engine configuration with custom motor/transmounts. I have also upgraded the entire rear suspension system to porsche as well including solid cast alu. trailing arms, porsche springplates and torsion bars. Still awaiting the final swaybar setup. modification allows for the full 4 pot calipers and large cross drilled rotors all around, in addition to allowing me to run the larger porsche cv's / axles.

thats about it at the moment. Let me know if you wanna talk about setup and configuration for the water system ect.

looking forward to talking about your build.
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Old 03-30-2009, 05:24 PM   #5
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Both of these projects sound ambitious, yet extremely cool!!!!

Best of luck and please post pics as you go along.

Jay
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Old 03-30-2009, 06:06 PM   #6
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Icanfly's project is ambitious and kick ass. Mine is just meh. There are plenty of 550s with suby engines. I'm just trying to get some more info before I start sourcing parts and the roller package.
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Old 03-30-2009, 07:05 PM   #7
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As long as it turns out better than the Fiero/F40 I saw years ago.......way too much ride height and very little thought in the details dept.......

Good luck guys!

Jay
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Old 03-31-2009, 09:15 AM   #8
PirateSanchez
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Best of luck, I saw a beck 550 replica (and my favorite, the porsche 904 replica) this past weekend, what fun cars!
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Old 03-31-2009, 10:38 AM   #9
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Thanks for the positive feedback. I have been working on my build for some time now, with the focus being buildability, streetability, realiability and longevity. I am confident that I will be successful in my project but will have lots and lots of questions with regards to getting this suby motor up and running happily. Here is a link to some back story and additional build info including roughups of my racecage ect...
check it out.

Having been a fan of "Hand built" cars for years I know that the difference between a succesful build and a failure is about 1/8" by that I mean in the body gaps, ride height and over all build quality. I have spent many years learning the skills required to get this done, and done in the correct way. If I can build this and get it into the AMA Hall Of Fame, I have faith in my skills.

Please ask any question (i don't wanna highjack the 550 thread by any means but we are doing similar things I think...)

As for the 550 what is the chassis going to be?
How will you handle the mid-engine arrangement?
Have you any finished builds that your using for inspiration?
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Old 03-31-2009, 03:51 PM   #10
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^^^ Yeah....looking at the bike and the photoshop renderings....I'd say you're well equipped to build a really nice car!!!!

Jay
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Old 03-31-2009, 06:00 PM   #11
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Wow... She looks really good in blue. I mean, the bike... With the black and the chrome. Anyway, back on subject, has the OP considered a Porsche 914 with a swap? I know they're uglier than sin, but alot of people really seem to like driving them.
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Old 03-31-2009, 09:42 PM   #12
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I loved the heck out of my 914 and can say one of those with a subi motorsould be a damn blast.

Storm, thanks for the encouragement. I'm stoked on the project.

Where is the 550 coming from?
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Old 04-01-2009, 12:10 AM   #13
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I'm going to get a roller package from either Vintage Spyders http://www.vintagespyders.com/ or Special Edition http://www.beckspeedster.com/.
The former has a history of taking a LOOONG time to deliver a car, but has had experience with mocking up a chassis to fit the suby engine. The rear will be a swing arm configuration and the engine will be mated to a VW 4-sp. The latter company delivers faster and can setup the car for IRS/De Deion.
The chassis will be purpose built (just not by me as I've never done this before) not off a VW pan. Will be a 3" DOM tubular chassis in either quasi-space frame or ladder frame (like the original 550). Engine will be mounted behind the cockpit, tranny behind the engine using either suby FWD (94 legacy) or 4WD converted to 2WD http://www.bremarauto.com/subaru_tra...conversion.htm.
I have no finished builds for guidance, that is why I am here.
I think anything porsche will be expensive compared to suby.
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Old 04-02-2009, 04:55 PM   #14
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man I wish I was going midengine but the chassis cost is just a bit high for this version of the build. Maybe 3.0 as this will be 2.0 for the car.

As for the Manu. Of the 550 I would vote beck hands down. I have seen 2 becks first hand and can say they are flawless...

Can't wait to see the build come together.
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Old 04-02-2009, 06:24 PM   #15
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Do a search for "poruki" or Wayne Seivers. He's got a SOHC EJ25 in a 69 912 with Webers on it. That's what I would do in this car.

I would also personally use a 914 transmission over the Subaru tranny. I don't know why they are getting so popular. They weigh a whole lot more than the 914 mag-case gearbox and aren't all that much stronger. The engine I am suggesting above doesn't put out a whole lot more power than a 2.2l S spec 911 engine. It's not going to strain a 914 gearbox in the least and they are a dime a dozen. You can find decent used ones for less than the cost of the Bremer components, and that's not even taking into account the CV axle pieces you'll need that aren't listed on Bremer's site.
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Old 04-02-2009, 07:31 PM   #16
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Matt, I glad you chimed in, was going to PM you. PM me your # so we can discuss tranny options. I'd really like to keep the turbo option open. Thanks.
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Old 04-02-2009, 08:24 PM   #17
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Email is best. My corporate email is phoenixrennwerks@live.com
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Old 04-03-2009, 10:26 AM   #18
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I look forward to seeing more about the subitrans vs. porschetrans. I have a feeling that I am going to be pushing my little 901 trans to the full max with the stock STI engine...

Matt,
what is the highest HP you've seen safely pushing through a stock 914 trans?

I will never drag launch my car so I am not concerned about 1st/reverse but I know that in 3rd with full boost blasting I might just rip it apart...that and I am still a bit worried about getting used to the odd gear layout in the 901
R 2 4
1 3 5
It's going to be interesting learning how not to jam reverse (slow is fast... slow is fast)
I am thinking about machining a shift gate ala the ferrari setup...thoughts?
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Old 04-13-2009, 12:33 PM   #19
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Matt knows his stuff and I don't build trannys. But the suby tranny was used in a 260-280 hp oem car driving about at least 32 inches of tire width in a 3000 lb. car. Yes a kid can tear one up. There are 3500.00 gear sets available for the suby and 400.00 obx/lsds. For the rough users. A later suby tranny has better metalurgy in the gears than the earlier ones. The legacy gears are a typical upgrade to the wrx tranny. When these trannys are put in a light single axle car they should hold up good. No adapter, no expensive 200mm clutch and flywheel. But the bremar conversion and possibly the axle flanges for the 100mm porsche cv's that porscharu is currently getting together another group buy on the club narp forum is a cost. Also a aftermarket or homebuilt shifter is a good idea. Actually the bremar could be home made with a little engunity. You are locking the upper and lower shafts together (removing a center differential and using it's parts welded together) and making a block off plate to cover the rear driveshaft hole while making a hole for the shift shaft to protrude. I have some 901's and some 914 trannys and they are fine for type 1 and type 4's but I like the idea of no adapter as I have used adapters before and there is always a compromise when they are used.
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Old 04-14-2009, 03:00 PM   #20
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charliew,
what is this "Club Narp" of which you speak?

I would like to see more about what others are doing.
I'm pretty sure that my project will require the use of the 901 trans in that I am still rear-engine... however as I plan yet another version of this car it would be nice to have those other options as I look at the design for a mid-engine setup.
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