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Old 02-23-2015, 01:02 PM   #251
RonW
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1968 Porsche 912
STi v8 Spec-C conversion

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Quote:
Originally Posted by SubasaurusWrex View Post
Badass build!

Just one thing that's bothering the hell out of me:

Used to.
Supposed to.

not

Use to
Suppose to.
Thanks for the comment and feedback, I have pet peeves as well so I can empathize
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Old 02-24-2015, 11:12 AM   #252
914forme
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Default MC? on your Tilton setup

Ron,

Who's MCs did you use with the pedal setup? I was looking into Howe's as they are short. They don't make a 5/8" bore MC for the clutch slave. Worst case I could build a pedal box down there to make get me the clearance I need.
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Old 02-24-2015, 11:54 AM   #253
RonW
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STi v8 Spec-C conversion

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All three are Tilton's and everything fit fine, perhaps 1-2" further back than stock pedal face location. I considered just building a small clutch master bracket and keep the stock pedal cluster but opted for this in case I needed to adjust bias after brakes were upgraded/completed but in the ended did not.
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Old 02-25-2015, 10:10 AM   #254
914forme
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Thanks, Ron
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Old 02-25-2015, 03:14 PM   #255
RonW
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STi v8 Spec-C conversion

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no worries, love to hear more about your build, got a thread? btw, running 13/16" masters front/rear and 5/8" master for clutch slave.
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Old 02-26-2015, 01:45 AM   #256
pksystems
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Did you ever consider using the G50 pedal cluster?

If you graft in the OEM brake booster, or have a BB car, the OEM G50 pedal cluster bolts right in.

I have the g50 cluster in my '66 912. I had to convert to the later style steering column to make room for the booster. The pedal area seems to be unchanged from '65-'89.

Adding the later car BB to non-assisted cars is pretty common with people that track the older cars when they put in big brakes.

Last edited by pksystems; 02-26-2015 at 05:02 AM.
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Old 03-15-2015, 06:00 PM   #257
Algershick
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Beautiful car, your approach is clever and inspirational! Though not a Porsche, I'm working on a rear engine Subaru swap myself.
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Old 03-27-2015, 05:17 PM   #258
vitai0
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(not to hijack your thread Ron) but for those looking to do this similar swap to a Porsche or other vehicle, I have my build page on Pelican Parts - 912 Subaru swap that is the same swap, of course with the help and expertise of Ron!
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Old 03-29-2015, 11:27 AM   #259
RonW
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Algershick,
thanks man, post up a link to reference your build/swap. always great to see other ideas for refinement on mine

vitai0,
hey matt! whats with the username, took me a sec then realized it was you. your car is turning out AWESOME! hurry up and get that harness done from brian and lets start that bad boy up

autocross last weekend and holy crap its fun. no longer worried about the trans holding up under hard accel and the thing chirps sticky tires in 1st and 2nd no problem install rear sway bar this weekend so welding the wevo brackets to chassis. of course nothing is a straight install on the car, the wevo brackets are for 73+ so i had to modify them to work then weld to chassis. hoping i dont have to mess with the coolant lines, its gonna be close but if i do, it'll be just a slice and rotate the tube a few decrease and tig it back together.
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Old 03-29-2015, 04:20 PM   #260
Corbic
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Quote:
Originally Posted by vitai0 View Post
(not to hijack your thread Ron) but for those looking to do this similar swap to a Porsche or other vehicle, I have my build page on Pelican Parts - 912 Subaru swap that is the same swap, of course with the help and expertise of Ron!

Great build. I'm curious to see how the cooling system turns out.
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Old 03-30-2015, 02:43 PM   #261
jdmdon
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sweet build! keep it up!
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Old 03-30-2015, 04:09 PM   #262
tomtom84
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Quote:
Originally Posted by vitai0 View Post
(not to hijack your thread Ron) but for those looking to do this similar swap to a Porsche or other vehicle, I have my build page on Pelican Parts - 912 Subaru swap that is the same swap, of course with the help and expertise of Ron!

nice.
I can't wait to get started on my project! You guys keep giving me great ideas on what to add on to it
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Old 03-31-2015, 02:40 AM   #263
RonW
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STi v8 Spec-C conversion

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just for completeness, rear sway bar installed and did have to cut and rotate the pass side coolant tube ~15-20 degrees to clear the sway bar mount. the Wevo chassis mount was flipped and shimmed to mount flush to the chassis since the Wevo mount was designed for 72-89 chassis contour. the rest bolted up as designed.









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Old 03-31-2015, 08:12 PM   #264
vitai0
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Ivory White

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Thanks for the kind words everyone!

Hey Ron - It's Mike. I had this account here when I owned by old BG Legacy back in the day! http://forums.nasioc.com/forums/show...postcount=2475 You can even see the 912 in the background of the last pic!

I dropped off my harness to Brian @ iWire last weekend, and while doing so, noticed that my harness has a APEXi Turbo Timer on it! Freebie! Ill be in San Jose this weekend working on buttoning up some details, but should be starting it up once the harness is done!!

BTW - nice install!! Glad you got those Wevo mounts in finally!

Last edited by vitai0; 03-31-2015 at 09:34 PM.
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Old 04-26-2015, 10:28 PM   #265
RonW
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STi v8 Spec-C conversion

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Ok Mikey, looking forward to checking your beast out, hopefully soon. you guys have given me some great ideas on improving mine.

here is a vid from the weekend at thunderhill for some testing. need to build sometype of cowl to replace the rear deck grill to force air to the WAIC radiator, got pretty hot.





Thunderhill testing '68 912 STi - Youtube




...

Last edited by RonW; 04-26-2015 at 11:07 PM.
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Old 06-10-2015, 11:00 AM   #266
Jeff911C
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I bought a Covin 911 on a Tubular chassis and I'm going Subaru power plant as well! Thanks for the motivation! I hope to have a build thread started soon. Keep up the great work!
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Old 06-14-2015, 05:24 AM   #267
1303Steve
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Hi

Nice build, Im running a EJ207 in a 73 Beetle, good to see Im not alone.

Steve
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Old 01-18-2016, 06:04 PM   #268
ducs
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Default 77 911S 851 widebody

Quote:
Originally Posted by RonW View Post
twin custom radiators behind each head light similar to how a boxer or 996 is set up. wish i could run those radiators but i dont have that much space up there. cooling lines will be run thru the side heating ducts (if you know 911's you'll know what i am referencing) on one side over the front wheel arches to one rad then out to the other side to the other rad then back via the other side heating duct to the motor. should be pretty clean and no cutting required!
Great thread, I have an 07 Rally 2.5 STI engine in my 1977 Porsche 911S 851 widebody,was wondering about what the exhaust issues are,currently just using an open exhaust. The car came with the engine installed and mated to the Porsche Tranny as the 2.7 engine was blown. Tks Ducs

Last edited by ducs; 01-18-2016 at 06:09 PM. Reason: adding information
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Old 01-18-2016, 08:02 PM   #269
RonW
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STi v8 Spec-C conversion

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Quote:
Originally Posted by ducs View Post
Great thread, I have an 07 Rally 2.5 STI engine in my 1977 Porsche 911S 851 widebody,was wondering about what the exhaust issues are,currently just using an open exhaust. The car came with the engine installed and mated to the Porsche Tranny as the 2.7 engine was blown. Tks Ducs
Hey Ducs,
thanks for the kind words.
Exhaust is likely going to need to be custom. Stock location is not going to work without having to hack things up and do some majoy mods. You will first have to figure out your desired turbo location. once there, you'll need to build a custom header/collector/up pipe to the turbo and then the down pipe to some small muffler. I've seen it done a few different ways but all will have to be custom. Once this is done, you'll still need to figure out the cold side to and intercooler and into the throttle body. Wish we could use the stock location but the drives side shock is right there and in the way.

best of luck!
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Old 02-28-2016, 03:25 PM   #270
RonW
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STi v8 Spec-C conversion

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Update:
SOOO much fun! driven her all around NorCal, Sierras, upto Tahoe, autocross and track. So nice to cruz on the freeway with proper gearing for modern traffic fuel milage approaching my TDI if I keep my foot out of it (~32mgp)

Issues
1) Battery CCA: for some reason, the Odyssey PC925 doesnt have enough CCA to start the subaru starter consistently, even bought a new one and still had same issue. I ended up swapping to new battery technology with Lithium Nano-Phosphate Motorsport Battery made by Antigravity 16 cell and 480 CCA and only 5 lbs. (vs 26lbs for the prior). so far its been flaw less and dumped 20lbs

2) Fuel vapor lock: not sure how to deal with this one yet but has only been an issue 2x. under heavy prolonged loads (>30 min of flogging) the fuel being recirculated will gradually start to warm up then I can hear the Walbro fuel pump start to work harder and whine then just stop pumping. if i pull over and let it cool for about 10 min or so, its starts and can continue or if i pull over an fill up with cooler fuel, then it im good again. hasnt been an issue at track because the volume of fuel and the duration is fine. its the prolonged spirited driving on the back roads without stopping. if anyone has advise, love to hear it.

besides that, been very happy and cant imagine going back
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Old 02-28-2016, 05:00 PM   #271
panel
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EJ20 Turbo Swap/convo

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Do you have a 'fuel swirl pot' yet ?
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Old 02-28-2016, 05:54 PM   #272
RonW
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STi v8 Spec-C conversion

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Quote:
Originally Posted by panel View Post
Do you have a 'fuel swirl pot' yet ?
no. i was looking at coolers like and oil cooler to put on the low pressure return line. i'd like it to be as simple as possible.

hows the splity coming along?
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Old 02-28-2016, 09:10 PM   #273
panel
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EJ20 Turbo Swap/convo

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^ Ron , got her running this weekend after being off the road for 2yrs. Check my thread

http://forums.nasioc.com/forums/show...0#post44221020
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Old 02-29-2016, 01:10 PM   #274
914forme
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Ron,

You may want to look at in tank fuel pumps, a lot of us are running them in our 914s and find they work well.

Though I am thinking about running a low pressure unit, and doing a fuel sump back by the engine. Never had an issue with fuel cut, that I am aware of, but no need to find out in a transition when you really want engine power.

Rock crawler guys do these a lot. Due to extreme angles and hitting the rock hard can move fuel away from the pickups.

Fuel coolers would be another solution. They are for the most part a normal oil cooler, but that seems like it might be a band-aid to the real issue.

Where is your fuel pump located, in the front or back?
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Old 06-19-2016, 01:27 PM   #275
Tremelune
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Very cool build. This car must be a real joy to drive. I stumbled on this thread while investigating the viability of using a Subaru transmission in place of the Porsche 915 in an '84 911:

http://forums.pelicanparts.com/porsc...ace-915-a.html

I scared up some of the missing photos from this thread (403 Forbidden error on them, currently):

















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