912 + Subaru STi motor +WRX trans project, conversion Options

[oldschool]

Ron very cool 912 do have any pictures of the build...ie the front rad. Set-up etc...

[RonW]

Thanks oldschool.

So, radiator mounted up front and using the 912 gas tank opening for the exhaust. here was an early stage before i enclosed it and after i put in the fuel cell.

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1370806457.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1370806457.2.jpg)

i tigged up some 1.25" tubing with mandel bends to run forward along the pinch seam and connect to motor/rad via the same gates style hose you guys use.

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1370806458.3.jpg)

there are 2 spal 14" fans drawing air in via sealed rear mound. this was a complete unit from Ron Davis. the stock ecu control each fan to temps and load situations i selected.

as a note, you NEED to have a bleed line running from the radiator back to the turbo tank otherwise air will be trap in this style of a set up. i am running a -4AN hose front to back for this.


after getting a cheapo hf sheet metal break I finished it off. there were some small gaps but i closed them all off with foil tape and she runs cool and no heat on to fuel cell.

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1370806458.4.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1370806458.5.jpg)


as a side note, that 10 gal fuel safe cell fit perfect and i was able to adapt the stock sending unit (had to trim it down and re solder some internal wires and works with the stock gas gauge.

[0396]

All I can say is WOW, great looking fabs on this conversion 300 + HP....mmmmi the 912 going to fly.

Congrats

[aircooledtechguy]

I don't know how I missed this thread earlier. . .

Wow!! Nice job!

You probably have the clutch hyd mc figured out by now, but in case you don't, you may look at the mc Saco makes that fits into the tunnel on a stock aircooled VW. It could probably be easily adapted to your 912. You can do a search about them on thesamba.com.

Again, nice job!

[RonW]

Hey Nate, thanks. I have not yet decided on the clutch master but just did a little research and that might actually work well but will have to see how throttle rod runs in there so not to interfere, sometimes I really wise I was DBW. I figure one step at a time, get the tranny in and deal with what comes next (IMG:style_emoticons/default/biggrin.gif)

[rick 918-S]

Nice build. (IMG:style_emoticons/default/popcorn[1].gif)

[Zaney]

Great Build!!!

For the clutch option, I followed what STRAWMAN used for his suby conversion.

It is in his thread here.

It works great and is easy enough for a novice like me to copy (IMG:style_emoticons/default/biggrin.gif)


Please post a video of it driving when you get there!

Cheers!
Nate

[RonW]

Nate, thanks for link, it yielded a few ideas (IMG:style_emoticons/default/smile.gif)

I used a pinion depth tool and its spot on. I marked it up and it seems like a slightly thinner shim may be called for. Thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1371431698.1.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1371431698.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1371431698.3.jpg)

[RonW]

long overdue for update:
I want to get the trans in this winter. Not that the Bay Area gets that cold in winter but I’m a pussy. I decided to start while the gettin is good. I knew I’d be pulling the motor and trans in and out repeatedly to take care of interference and to mock up the trans support and doing this all my self would be quit a chore. Instead, I sourced a dead case that a rod had tried to escape at speed. With that and a disassembled trans case, I found the areas on the rear seat hump that needed massaging with the precision big fcuk'in hammer. After an hour or so of getting out my aggression, I was able to locate were the new hole for the shift rod would enter the cab. The original 901 shifter is in the 6 o’clock position while the suby unfortunately is in the 11 o’clock position and has to go over the torsion tube. Anyway, got it mostly mocked up but still need a few more love taps to be “perfect.”

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197160.1.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197161.2.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197161.3.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197161.4.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197161.5.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197161.6.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197161.7.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197162.8.jpeg)


got wilwood clutch master and slave and will fab on brackets and run the hydraulic line.
still need to figure out the axles but im leaning towards Ians solution with hybrid axle 912 outer cv (i believe same as 914 diameter and spline count) and subaru inner cv. or 930 inner cv cuz i do have the adapter flange. not sure yet, opinions?
finally since i cant run the cable shift as you guys do, will have to run something like this but off set to pass side and hopefully clear the ebrake

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197162.9.png)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1382197162.10.png)

[jpnovak]

Ron, Just run a Hargett or something similar to raise the shift rod above the ebrake assembly.

[Dr Evil]

Dang. I can see me following this build to a T and building similar. Nice job (IMG:style_emoticons/default/thumb3d.gif)

(IMG:style_emoticons/default/popcorn[1].gif)

[RonW]

Jamie,
they hargett is bank and from what ive read is a pita to still access the ebrake. i already have my wevo shifter and coupler so id rather note fork out more dough, the above elevated platform should be simple to cut and tig up and call it a day (IMG:style_emoticons/default/biggrin.gif)

Dr. Evil,
Thanks for the kind words. I was actually thinking about you and your clinic you had in Napa this weekend. I was tearing into one of my stashes of 901's to harvest a shift for to cut of for an adapter to go between the suby shift rod (16.5 mm diameter) to the Wevo coupler (for 901 shift rod 15mm). work out perfect.

got the trans mount mocked up to use to oem unit. figured out the mounting for the Wilwood hydraulic slave and will hopefully get the fab up a mounting bracket for the Wilwood clutch slave to work with the stock pedal as other teeners have documented.

[veekry9]

Nate, thanks for link, it yielded a few ideas (IMG:style_emoticons/default/smile.gif)

I used a pinion depth tool and its spot on. I marked it up and it seems like a slightly thinner shim may be called for. Thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1371431698.1.jpeg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1371431698.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/iwolfe.com-5340-1371431698.3.jpg)

This is Great Work Ron.
Are you the first in the territory of a 912/Subi4?
I recall Ruf has built a 356/911 POLO.
I'm certain you will be happy with your high
powered car.Is a turbo to follow?To hear the whistle
and pop.

[RonW]

This is Great Work Ron.
Are you the first in the territory of a 912/Subi4?
I recall Ruf has built a 356/911 POLO.
I'm certain you will be happy with your high
powered car.Is a turbo to follow?To hear the whistle
and pop.

thanks veekry9, i don't know if im the first but ive only seen the 914 guys crazy enough to do this with P-cars (IMG:style_emoticons/default/screwy.gif) . also lurking around with vw bug conversion forums cuz a thats a subys are becoming quite popular with them too.

sti moto with turbo has been in for over a year now and running 18psi. im running big turbosmart BOV and EWG and makes lots of great noises with my heavy foot, just have to be careful out of first gear...well use to be careful, can't wait to waste the remainder of these re-11s in a plum of white smoke (IMG:style_emoticons/default/aktion035.gif)

[veekry9]

912RON
That would be worth seeing on youtube.
I recall there are a number of 914s
that have posted their vids complete with a
selection of their favourite music.
Now a 912 belching tiresmoke and flames
would be a rare thing.

[RonW]

912RON
That would be worth seeing on youtube.
I recall there are a number of 914s
that have posted their vids complete with a
selection of their favourite music.
Now a 912 belching tiresmoke and flames
would be a rare thing.

no belching tire smoke but a vid none the less
not sure if im posting this correctly - thanks Chris H for helping me embed this correctly, i had the entire url, not just the "OsZ4F1cwgeA"

https://www.youtube.com/watch?v=OsZ4F1cwgeA

[DBCooper]

What I"m really curious to see is the feel you get with the Subaru transmission compared to the 901. In the 914 and a cable shifter it's a huge improvement, really night and day. I'm not sure if that improvement is more because of the cable linkage, the transmission being a more modern design, or the combination of the two. You're going to remove the cable shifter from the equation, so you'll be able to compare just transmissions, Subaru to 901. I'm curious to hear how it turns out.

If nothing else you'll get ratios that are better matched, and that by itself makes a huge difference in the overall feel of the car. Mismatched ratios are kind of like the car has a personality disorder. Big difference.

[veekry9]

Thanks Ron
That made my day.
A lot of questions answered.
It's plain to see the spectacular results.
I have to ask,Big Brakes,Late 911 Suspension?

[RonW]

dbcooper,
i am excited to see/feel the results too. when i switched to the wevo shifter and their shift coupler and new bushings, as well as upgraded the tranny to wevo pucks, it really helped the 901 but heel toe from 3rd to 2nd is sometimes a bit questionable if rushed. i am confident it will be improved and cruising at 2600 rpms on free way will be much better than 3200 with the 901 for sure.

veekry9,
ive updated to an later model SC front end with bigger brakes and rebuilt the front with all elephant polybronze bushes and fresh bilstein strut inserts, turbo tie rods, later steering rack etc. rear unfortunately is still '68 smaller calipers but so far for ax, its been fine.

[veekry9]

dbcooper,
i am excited to see/feel the results too. when i switched to the wevo shifter and their shift coupler and new bushings, as well as upgraded the tranny to wevo pucks, it really helped the 901 but heel toe from 3rd to 2nd is sometimes a bit questionable if rushed. i am confident it will be improved and cruising at 2600 rpms on free way will be much better than 3200 with the 901 for sure.

veekry9,
ive updated to an later model SC front end with bigger brakes and rebuilt the front with all elephant polybronze bushes and fresh bilstein strut inserts, turbo tie rods, later steering rack etc. rear unfortunately is still '68 smaller calipers but so far for ax, its been fine.

Have you installed the later antiroll bars as well?
The 72 914 I havewas produced without them,
so I will do the Later stock install shortly as I have all the
requisite parts on hand.I recently purchased the R-Design
Outer Long Stiffener panels in anticipation of the Corvair
install.It'll be fun,It'll be fun.