 Subaru Engine w/Boxster transaxle, Perfect fix for 914??? |
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| precisionchassis |
 Jul 26 2010, 05:08 PM
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#1
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Member  Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region  |
I know there may not be a lot of people on here who will be interested in this for their car, but it will be nice to have more options for people who want more power, and a modern shifting mid-engine transaxle. These pictures are of a 6 speed version, but the 5 speed will use the same adapter plate and flywheel.
(IMG:http://www.914world.com/bbs2/uploads_offsite/i180.photobucket.com-11979-1280185725.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/i180.photobucket.com-11979-1280185729.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/i180.photobucket.com-11979-1280185731.3.jpg) |
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| daveyboybadion |
Jul 26 2010, 05:21 PM
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#2
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Member Group: Members Posts: 108 Joined: 19-January 06 From: Seattle, WA Member No.: 5,437 Region Association: Pacific Northwest |
That's cool, are you selling the adapter?...daveyboy
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| jimkelly |
Jul 26 2010, 05:25 PM
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#3
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
the shoe prints on the wall - big distraction : )
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| andys |
Jul 26 2010, 05:36 PM
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#4
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None 
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Did you have to notch the bellhousing to get the starter to fit?
Andys |
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| precisionchassis |
Jul 26 2010, 05:42 PM
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#5
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(andys @ Jul 26 2010, 04:36 PM)  Did you have to notch the bellhousing to get the starter to fit? Andys Yes |
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| precisionchassis |
Jul 26 2010, 06:22 PM
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#6
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(daveyboybadion @ Jul 26 2010, 04:21 PM) That's cool, are you selling the adapter?...daveyboy Yes, the plan is to eventually sell an adapter kit. |
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| charliew |
Jul 26 2010, 08:07 PM
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#7
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
I wonder what is the torque specs for the boxter 6 speed and what is the first gear ratio? If the boxter 5spd is higher than 300 ft lbs torque rating it may be a worthwhile investment. It costs about 3500 to upgrade a suby 5spd I think to handle 450 ft lbs where the case becomes to weak part. At any rate it is nice to have a alternative as this should also fit the suby 6. What is the distance from the center of the axle to the motor bellhousing flange? The adapter also appears to move the motor further forward which is good I think. Also the tranny looks more robust in the case webbing than a suby tranny.
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| BIGKAT_83 |
Jul 27 2010, 08:43 AM
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#8
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Senior Member Group: Members Posts: 1,798 Joined: 25-January 03 From: Way down south Bogart,GA Member No.: 194 Region Association: South East States 
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Great work!!
I guess its time to start looking for a Boxster with a bad engine. How much lighter is the Subaru engine than the 2.7 water cooled boxster engine. I'm guessing that the subaru is at least 200lbs lighter if not more. Bob |
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| tommy914 |
Jul 27 2010, 08:52 AM
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#9
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Life is a journey, enjoy every turn. Group: Members Posts: 1,103 Joined: 15-September 03 From: Ridgeland, MS Member No.: 1,165 Region Association: None |
will this use the cable shifter from the Boxster? or a custom setup?
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| precisionchassis |
Jul 27 2010, 01:01 PM
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#10
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(tommy914 @ Jul 27 2010, 07:52 AM) will this use the cable shifter from the Boxster? or a custom setup? I'm pretty confident I can make the stock Boxster cable shifter system work in a 914, but won't know until I try. Cable length will be the deciding factor. Regardless, there's no reason not to use the shifter itself. It would just be a matter of some custom cables. The first conversion will happen in a Boxster S that will be a track car. As long as all goes well in that car on the track, I will venture out to a 914 chassis. |
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| budman5201 |
Jul 27 2010, 04:19 PM
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#11
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Senior Member Group: Members Posts: 595 Joined: 1-April 07 From: tempe, az Member No.: 7,635 |
Hey are you making this adaptor? I am VERY interested. I just took a good look at the boxster cable shifter setup at 20th Street porsche junkyard here in Phoenix. It is a real nice light setup and cables are pretty long stock. I can get the whole setup shifter and all the cables, plus the rear brackets that bolt to the transmission for $150.
I bet this would be a perfect fit for my subie 6. So i have a few questions. 1. clutch, how is this setup? 2. flywheel\pressure plate setup, are you making it? 3. how soon till you get this setup done? 4. Which transmission the 5 or the six speed is better, are they both computer controlled?? thanks man, very interested!! Oh hey !! I just saw I live right next door to you in Chandler.....Would love to come and see your setup. |
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| precisionchassis |
Jul 27 2010, 04:28 PM
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#12
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(budman5201 @ Jul 27 2010, 03:19 PM) Hey are you making this adaptor? I am VERY interested. I just took a good look at the boxster cable shifter setup at 20th Street porsche junkyard here in Phoenix. It is a real nice light setup and cables are pretty long stock. I can get the whole setup shifter and all the cables, plus the rear brackets that bolt to the transmission for $150. I bet this would be a perfect fit for my subie 6. So i have a few questions. 1. clutch, how is this setup? 2. flywheel\pressure plate setup, are you making it? 3. how soon till you get this setup done? 4. Which transmission the 5 or the six speed is better, are they both computer controlled?? thanks man, very interested!! Oh hey !! I just saw I live right next door to you in Chandler.....Would love to come and see your setup. Clutch will be stock style Boxster pieces Flywheel will be completely custom Should hopefully have the test car running and testing by the end of the summer 6 speed is stronger than the 5 speed but slightly heavier and more expensive. Both use the same adapter plate, clutch and flywheel. Neither are computer controled. I am making the complete adapter kit and conversion kit myself. As you already know, the same adapter plate will work for the EJ, EG, and EZ Subaru motors. |
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| budman5201 |
Jul 27 2010, 04:52 PM
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#13
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Senior Member Group: Members Posts: 595 Joined: 1-April 07 From: tempe, az Member No.: 7,635 |
QUOTE(precisionchassis @ Jul 27 2010, 03:28 PM) QUOTE(budman5201 @ Jul 27 2010, 03:19 PM) Hey are you making this adaptor? I am VERY interested. I just took a good look at the boxster cable shifter setup at 20th Street porsche junkyard here in Phoenix. It is a real nice light setup and cables are pretty long stock. I can get the whole setup shifter and all the cables, plus the rear brackets that bolt to the transmission for $150. I bet this would be a perfect fit for my subie 6. So i have a few questions. 1. clutch, how is this setup? 2. flywheel\pressure plate setup, are you making it? 3. how soon till you get this setup done? 4. Which transmission the 5 or the six speed is better, are they both computer controlled?? thanks man, very interested!! Oh hey !! I just saw I live right next door to you in Chandler.....Would love to come and see your setup. Clutch will be stock style Boxster pieces Flywheel will be completely custom Should hopefully have the test car running and testing by the end of the summer 6 speed is stronger than the 5 speed but slightly heavier and more expensive. Both use the same adapter plate, clutch and flywheel. Neither are computer controled. I am making the complete adapter kit and conversion kit myself. As you already know, the same adapter plate will work for the EJ, EG, and EZ Subaru motors. If the price is right, I'll be your first buyer for the Complete kit so i can just buy the transmission and bolt that baby in!! If you need a test subject, my 914 subie 6 is up and screaming around already. I'd be glad to put that adaptor kit through its paces. I am sure the gear ratios will bring my rpms down quite a but while cruising at 75mph. |
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| precisionchassis |
Jul 27 2010, 05:08 PM
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#14
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(budman5201 @ Jul 27 2010, 03:52 PM) QUOTE(precisionchassis @ Jul 27 2010, 03:28 PM) QUOTE(budman5201 @ Jul 27 2010, 03:19 PM) Hey are you making this adaptor? I am VERY interested. I just took a good look at the boxster cable shifter setup at 20th Street porsche junkyard here in Phoenix. It is a real nice light setup and cables are pretty long stock. I can get the whole setup shifter and all the cables, plus the rear brackets that bolt to the transmission for $150. I bet this would be a perfect fit for my subie 6. So i have a few questions. 1. clutch, how is this setup? 2. flywheel\pressure plate setup, are you making it? 3. how soon till you get this setup done? 4. Which transmission the 5 or the six speed is better, are they both computer controlled?? thanks man, very interested!! Oh hey !! I just saw I live right next door to you in Chandler.....Would love to come and see your setup. Clutch will be stock style Boxster pieces Flywheel will be completely custom Should hopefully have the test car running and testing by the end of the summer 6 speed is stronger than the 5 speed but slightly heavier and more expensive. Both use the same adapter plate, clutch and flywheel. Neither are computer controled. I am making the complete adapter kit and conversion kit myself. As you already know, the same adapter plate will work for the EJ, EG, and EZ Subaru motors. If the price is right, I'll be your first buyer for the Complete kit so i can just buy the transmission and bolt that baby in!! If you need a test subject, my 914 subie 6 is up and screaming around already. I'd be glad to put that adaptor kit through its paces. I am sure the gear ratios will bring my rpms down quite a but while cruising at 75mph. Thanks, but I already have a 914 test vehicle that I will be putting the first 5 speed into... http://www.precisionchassisworks.com/subar...orsche-914.html |
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| Zaney |
Jul 27 2010, 06:29 PM
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#15
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Deuchland en der Haus Group: Members Posts: 461 Joined: 1-March 04 From: Engine 11 Redmond, WA Member No.: 1,738 Region Association: Pacific Northwest |
Is this your 911 SVX engine swap?
If so, AWESOME craftsmanship!!! (IMG:style_emoticons/default/smilie_pokal.gif) |
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| precisionchassis |
Jul 27 2010, 07:09 PM
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#16
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(Zaney @ Jul 27 2010, 05:29 PM) Is this your 911 SVX engine swap? If so, AWESOME craftsmanship!!! (IMG:style_emoticons/default/smilie_pokal.gif) Yes it is. That was a fun car. |
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| precisionchassis |
Jul 29 2010, 03:54 PM
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#17
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
New body work mocked-up on test car...
(IMG:http://www.914world.com/bbs2/uploads_offsite/i180.photobucket.com-11979-1280440458.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/i180.photobucket.com-11979-1280440459.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/i180.photobucket.com-11979-1280440460.3.jpg) |
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| rickthejetman |
Jul 29 2010, 04:12 PM
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#18
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Member Group: Members Posts: 90 Joined: 5-May 09 From: victorville ,ca Member No.: 10,335 Region Association: None |
about how much does a boxter trans cost? 5spd or 6spd?
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| precisionchassis |
Jul 29 2010, 05:07 PM
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#19
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Member Group: Members Posts: 99 Joined: 26-July 10 From: Gilbert, AZ Member No.: 11,979 Region Association: Southwest Region |
QUOTE(rickthejetman @ Jul 29 2010, 03:12 PM) about how much does a boxter trans cost? 5spd or 6spd? A good 5 speed is about $1500, and a 6 speed is about $2500. I've seen them for less on Ebay, but those are good "retail" prices from reputable salvage yards. |
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| andys |
Jul 29 2010, 05:20 PM
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#20
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None
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QUOTE(precisionchassis @ Jul 29 2010, 04:07 PM) A good 5 speed is about $1500, and a 6 speed is about $2500. I've seen them for less on Ebay, but those are good "retail" prices from reputable salvage yards. The Boxster 5 speed and the Audi 5 speed model 012 are the same transaxles (same output flanges?). There are some gear ratio variations, but most of the 1.8T Audi's have the same ratio as the Boxster. Only thing you don't get with the Audi transaxle is the cable shift bellcranks and linkage. The Audi stuff can be had for about half the cost of the Boxster. Andys |
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