Can any of you conversion guys please tell me what kind of flywheel you used to mate a 3.6 to a 915 tranny? Would be greate if you could tell me how many teeths the flywheel has.

Here's a pic of the conversion kit from Timmons. I counted 58 teeth plus the gap. Hope this helps.
http://forums.pelicanparts.com/uploa...1334521615.jpg

This thread has been useful! I need to figure out how to maintain the RSR look with my exhaust tips for my upcoming 3.6 conversion. The crab style doesn't work for me.

Have you thought about something like this? You could probably weld new flanges onto your existing muffler to have it mate up to 3.6L heat exchangers...

http://forums.pelicanparts.com/porsche-911-technical-forum/843146-happy-crab-exhaust-instant-g-anyone-tried.html#post8402798

In 2008, Chris Powell, of Bellevue WA installed a 1996 3.6 Varioram motor in my 1972 911T/ST. The engine was completely rebuilt by Monty Jarvies with Carillo rods, RS valves, 993 Sport cams, solid lifters, race springs, Ti retainers, chipped DME, headers and a Sycip rally muffler. On a rolling dyno, we achieved 270 hp @ 6100 rpm and 258 ft-lb torque @ 4200 rpm - at the wheels. Assuming a 15% drivetrain loss, that's 310 hp and 296 ft-lb of torque (or 318 hp and 303 ft-lb, depending on how you figure it). It's run great for the past seven years, turn key reliable. The car has traveled up and down the west coasrt several times and won its class at the 2012 Porsche Parade Autocross, third fastest overall.

http://forums.pelicanparts.com/uploa...1435503103.jpg

Looks great Randy!


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I'll join in, haven't come across this thread before.
This is a '92 3.6 in my '88 Carrera.
Engine management is MS3X driving 12 Toyota COPs.
Triumph Daytona triple throttle bodies mounted on custom intake runners feed in the air.
Engine-mounted oil cooler and custom ductwork takes care of cooling. Simple, eh!
Build thread here.

http://forums.pelicanparts.com/uploa...1435668841.jpg

http://forums.pelicanparts.com/uploa...1435669393.jpg

http://forums.pelicanparts.com/uploa...1435669069.jpg

http://forums.pelicanparts.com/uploa...1435669209.jpg

http://forums.pelicanparts.com/uploa...1435669672.jpg

Drool.


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same place
 

My Instant G 3.6 motor has been on order since mid April:D.
Installed a 72 row oil cooler with AN-16 oil lines as low and far from the front tub wall as possible behind the front spoiler for optimized air flow.
Sachs Power Clutch and some 1 3/4" Headers are next.

It all started when my 3 liter broke a head stud, the sound it made when it fell out was just like the sound of a big pile of $$$ hitting the floor:rolleyes:

Just read this entire thread. Absolutely mesmerizing billjam. Where does one even BEGIN to learn the skill set you bring to the table? Between your fab skills and overall knowledge, it's unbelievable. I feel like you could be a lead engineer on any number of professional race teams.


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What type of clutch you use?
Best regards.

Fixing to join the club....

1975 Carrera with Rothsport 3.6 vario ram. Custom Rothsport stainless headers tied to factory GT3 Cup muffler with Ti tips. And LOTS of suspension and brake upgrades! http://forums.pelicanparts.com/uploa...1469928116.jpg
http://forums.pelicanparts.com/uploa...1469928162.jpg
http://forums.pelicanparts.com/uploa...1469928214.jpg
http://forums.pelicanparts.com/uploa...1469928254.jpg

…. that-a-way boys - keep throwing money at it ….. :')

http://forums.pelicanparts.com/uploa...1470072240.jpg

Pic of completed car @ AAA Speedway in action, SO MUCH FUN

Maybe for a race car but I would be hesitant any longer to convert any air cooled 911 from it's original engine even if a lowly 2.7 Considering the huge appreciation I,ve seen in the last few years it will probably cost you a bunch of money to lower the value of your car.
Last one of 2 that I swapped to a 3.6 was a 1980 coupe ,the other one was a 1977 3.0 Carrera targa about 12 years ago when the average 911 was worth about 10k. Sold it in 2010 for 18 k and bought a high miles 993 for 19k. Sold the 993 last year for $40k Now look at prices of stock cars.

its all about the fun, not the financials.

Kennedy Engineered Products in Palmdale CA makes conversion flywheels and clutches. I have done business with them for many years.

Sachs "Power Clutch"
Sachs P/N# 3000 961 101

Mike,
Back in '92 when I was doing my 3.6 update into my '80SC there were no transplant
products on the market available. I had to do all the wiring, clutch/flywheel, etc by my
own jerry rig engineering. I even added an on engine oil cooler as I knew just the front Carrera cooler would not be enough.

As far as a conversion flywheel, the engine I got was an '89 C4 motor which had a normal flywheel, not the dual mass one. I looked it over and took it to my local machine shop and had them redrill it to use a 915 pressure plate. Easy Peasy, problem solved!

That flywheel by the way is still available Part #: 964-102-239-00-M260

I have read that the conversion flywheel from your favorite supplier PMS (lol)
Had clearance problems with the flywheel sensor.

How are you coming with your cruise control retrofit ? Let me know if you need any
assistance.

Best,
Grant

Bill... exceptional body of mechanical & fabrication art. Good onya!

…. oh ….

Nice work, and I like the Brown.

Swapped my 3.2ss for a 3.6


http://forums.pelicanparts.com/uploa...1483489901.jpg
http://forums.pelicanparts.com/uploa...1483489901.jpg

here is a short video of mine

slow progress- but progress https://www.youtube.com/watch?v=5uRlhb68__U

Sounds familiar. Keep up the good work. You're going to have a fun car when it's all done.

After coil over setup installed, 3.8l going in

http://forums.pelicanparts.com/uploa...1487730405.jpg

http://i118.photobucket.com/albums/o...ps8e9dzi1d.jpg

3.2ss coming out to make room for 3.6

http://forums.pelicanparts.com/uploa...1514952210.jpg
http://forums.pelicanparts.com/uploa...1514952210.jpg
http://forums.pelicanparts.com/uploa...1514952210.jpg
First time seeing this thread, below are the specs for the conversion into my 81 backdate. Lots of help from Mark Kinninger on this build including rebuilding both engine and trans.

Based on a 964 3.6L enlarged to 3.8L
Oil plugs removed and case cleaned, tumbled and inspected, check tolerances
Std/Std Crank Magnaflux and Polished, Cross Drilled for oiling
Pauter Lightweight Rods with ARP Bolts
Mahle Motorsport 3.8L Pistons and Cylinders with Custom Valve Pockets 11.3:1
Heads rebuilt, new valves, guides, valve job, Aasco springs and Ti retainers
Custom WebCam 3.8 RSR Billet Cams
B & B 1.75” Exhaust Headers with Heat Exchanger, Stainless Steel
Rarly L8 RSR Sport Muffler, Stainless Steel
Supertec Head Stud Kit
Supertec Rebuilt Rocker Set
Coated Bearings
RSR Center Mount and Carrera Fender Mount Oil Coolers, Dual Fans,
Elephant Racing Finned Oil Lines, Black Braided Cooler Lines and Fittings -12 AN
Custom Engine Tin for 3.8L into Earlier Chassis
Custom Fan Shroud Adapting Early Fan to 3.8L Engine
Patrick Motorsports Pulley

AEM Infinity ECU Programable Engine Management with Custom Harness
JBRacing Twin Plug Distributor
Clewett Engineering Cam and Flywheel Sensors
Clewett Engineering 8mm Wire Set

EFI 50mm PMO ITB’s
EarlsPTFEConvoluted -6 AN Lines and Fittings, Black
Fuel Lab 10 Micron Fuel Filter, Black
Summit Racing Fuel Pressure Regulator, Black
ITG Sausage Air Filters
New Bosch Fuel Pump



Original Number Matching 915 Gearbox
Fully disassembled cleaned, tumbled check tolerances
Wavetrac LSD
New Synchros, Sliders, Dog Teeth, Welded Gears
Custom G50 Output Flanges by Gbox
New G50 Axles
Wevo Billet Bearing Retainer
Wevo Billet Side Cover with 930 Turbo Bearing
New Rear Wheel Bearings
Centerforce Clutch Kit
Patrick Motorsports Lightweight Flywheel

Like Dave, mine was built by Mark Kinninger at Black Forest. 3.8L based on a 1995 993 OBD1 motor. Almost identical in the engine build with the exception of Carillo rods, Supercup cams (also from Webcam) and ported and polished heads. I'm running the non vram setup with custom SWong chip. The chassis is a 1984 M491. Car was featured in Excellence magazine back in 2008 in completion.
Love it. It's a beast. http://forums.pelicanparts.com/uploa...1514955819.jpg
http://forums.pelicanparts.com/uploa...1514955819.jpg
http://forums.pelicanparts.com/uploa...1514955819.jpg

Did you buy this car earlier this year? I really wanted to buy this car for my next project.

Yes, Dave - I bought it earlier in 2017. I can see why you would have liked it as a starting point. Were your plans to backdate it?

+1 for the Wavetrac LSD

Are you using the 044# style pump?
Fuel pressure @ idle?

I almost bought your car. I hesitated and then it was gone. I regret the indecision. Nice pick up and congrats.

I recently completed a 3.6 conversion in my '77. Info and pics in my build thread in my sig.

https://scontent-sea1-1.cdninstagram...45280000_n.jpg

Yea, I saw it and acted quickly. It is my first 911 so I consider myself lucky. The seller Patrick was a stand up guy as he had other offers for his full asking price but stuck to our agreed number. Car has been great, especially since the bespoke Wong chip woke it up.
Your car looks like a lot of fun!

I have done a couple
 

Mine is a 1980 SC and the white one is an ex-racecar 72 from Puerto Rico. and my neighbor/buddy has a 74 he bought already done donehttp://forums.pelicanparts.com/uploa...1515019882.jpg
http://forums.pelicanparts.com/uploa...1515020018.jpg
http://forums.pelicanparts.com/uploa...1515020295.jpg

And my buddy Matt's car too..backdated 89 with a Varioram

And you smog that in California, how?

it passes the roller test, clean as a whistle. hood release was broken though.

Based on a 993 3.6L carrera 1995
Pistons and Cylinders 11.3:1
993 Bosch Fuel Pump
993 oïl radiator
993 carrera 1995 Gearbox
993 RS Lightweight Flywheel
turbo PRECISION 6262
Large intercooler
993 turbo calipers/brake disc
wastegate 40mm
6 psi boost

http://forums.pelicanparts.com/uploa...1515024225.jpg
http://forums.pelicanparts.com/uploa...1515024233.jpg
http://forums.pelicanparts.com/uploa...1515024243.jpg
http://forums.pelicanparts.com/uploa...1515024252.jpg
http://forums.pelicanparts.com/uploa...1515024263.jpg
http://forums.pelicanparts.com/uploa...1515024276.jpg
http://forums.pelicanparts.com/uploa...1515024284.jpg
http://forums.pelicanparts.com/uploa...1515024294.jpg

Your running over 11:1 compression with a Turbo? :eek: