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-   -   3.6 conversion question (http://forums.pelicanparts.com/porsche-911-technical-forum/774176-3-6-conversion-question.html)

earlycar911 10-05-2013 07:06 PM

I am doing a 3.6 conversion on a 84 cab. I got the conversion kit from Steve at instant-G. If anyone is interested I will send pics this week.I think it is tough horsepower to beat for the money. Also a ton of torque. I will admit I do like the responsiveness of a short stroke motor though.

wildcat077 10-05-2013 07:25 PM

If you need any tips/help , my 3.6 conversion is still fresh in my memory,it's only been three months ... lol

Cheers
Phil

Mikey83835 10-07-2013 11:11 AM

Quote:

Originally Posted by hightuned (Post 7685463)
whether i should get a 3,6 or go through with the supercharger conversion?

Both?:eek::D

hightuned 10-07-2013 01:47 PM

Quote:

Originally Posted by uwanna (Post 7690922)
Hang on to that 3.6 single mass flywheel. I did my 3.6 swap into my '80SC way back in '92. Back then there weren't any fancy swap kits or conversion parts. Had to figure out
the wiring etc. I thought I was stumped when I tried to figure out how to hook up to a
915. The motor came with a single mass flywheel ('89 C4 only). My solution was to use the 3.6 flywheel and have a machine shop redrill and thread it to take a 915 pressure plate.
Twenty one years later, and the old girl still runs like a raped ape! So really, Patrick doesn't
have a monopoly on conversion flywheels. You could convert yours!

Thx, ill keep that in mind.

P.s just saw that -big mac and fries motto, lauged so hard i spilled my beer, you owe me a carlsberg!

SCOTITUDE 10-11-2013 01:04 PM

my sc went from swift to fast. now chasin cup cars.

MFP911 01-02-2016 01:46 PM

Quote:

Originally Posted by umgang (Post 7684899)
Do it. You will have no regrets and it will be hard to drive the car while laughing so hard.
I have a 1975 911S w/ M64 3.6 Metzger engine. Owned it 8 years and still cannot sleep the night before i am going to drive it- it is that cool.
As far as differences between old and new: if you enjoy the process of the build, mechanicals of a true race engine with heritage, and a more convulsive experience go with the 3.6 in the SC.
If you are more new technology, gadget, less driver input, go with the Subaru motor cars (newer).

As far as the 915 trans- i have a magnesium cased 915 in mine.
It has run 200+ track days, 35+ GTS class races in NASA and PCA Club Racing.
I have a Setrab cooler with a Tilton pump that has helped keep the tranny cool.
But i will say, for DE/ TT/ you will be ok; for racing, i have had two failures / rebuilds of the 915 trans. It is a lot of torque for a weary mag cased box!

Any one can help me please,what type of clutch you use for a 3.6 with 915 gearbox?any part# ..

safe 01-02-2016 02:11 PM

Check out Patrick Motorsport for a conversion flywheel and a beefier clutch. I think they have a kit with everything.

3rd_gear_Ted 01-02-2016 02:22 PM

A Sachs "Power Clutch" is what I used on my Instant G conversion.

My car is @ Aase motors for commissioning, here is a couple things to consider

Think about mounting the "puke tank" you will need in the left fender well to eliminate oil mist in the engine compartment.

Get yourself the proper race fuel compatible AN-6 sized poly tubed lines with stainless braid to replace the stock SC fuel lines. This thin wall poly tubing will allow both lines back through the tunnel as required.

The brake change you desire to due because of the conversion is the "slippery slope", proceed wisely and READ this forum

The 3.6 motor will sit lower after install with the IG motor mount, look at the tension on the drain line from the oil tank. I am replacing the 35 year old hose with a longer one

removed stock oil lines and had custom oil lines mounted for my 315 tires w/o spacers, again NO 35 year old oil lines to worry about

Big ass oil cooler with max air flow

Alex973 01-02-2016 03:16 PM

old post
ok No one said that, after the conversion you or anyone including me
could not wipe off that smile:) the roar of that 3.6L intoxication

mreid 01-02-2016 06:44 PM

Yes, but new question!

dwight45 01-03-2016 07:07 AM

enough
 
All of this sounds sweet but lets see a few more pics of these converted cars. Come on, you know you want to. We want to see them. I love the concept but have an un-cooperative CFO.

mreid 01-03-2016 08:46 AM

Here you go:

http://forums.pelicanparts.com/uploa...1426038143.jpg

http://forums.pelicanparts.com/uploa...1424031119.jpg

Jack Olsen 01-03-2016 07:23 PM

My conversion is about 15 years old. Still very happy with the power. Get the car down to 2500 pounds and the engine close to 300 hp and you're at a certifiable sweet spot, at least in this driver's opinion.

Tremelune 01-03-2016 09:06 PM

I have a 2500 pound M491 coupe with a 3.6. It is glorious. With close-ratio gearing, it is wicked fast. Quite a bit faster to 100mph than my E39 M5. It is so fast that I can't give it full throttle for more than a few seconds on any public street. I'm in the process of making it heavier, slower, and more civilized so that I'll prefer to drive it in more situations.

That said, I my E39 M5 was $18k, and is not depreciating over time. I think in 2016, a 3.6 swap will cost you quite a bit more. In fact, I think you could get an LS3 in there for less money [citation needed] and you wouldn't have to worry about a $15k rebuild 100k-200k miles down the road...I think there are also people getting similar power from 3.2 engines via modern fuel delivery and the tweaking of intake, exhaust, and ignition [citation needed]. Love mine, but I don't think I would spend the money to do it these days.

Even 912Es are fun to drive, so be clear on your goals. What would you use this car for 80% of the time? You have the opportunity to buy a 996tt or Corvette and call it a prudent financial move...

Tremelune 01-03-2016 09:08 PM

Ah, crap. Got sucked into a thread resurrection.

Randy W 01-04-2016 05:21 AM

Quote:

Originally Posted by Jack Olsen (Post 8942541)
My conversion is about 15 years old. Still very happy with the power. Get the car down to 2500 pounds and the engine close to 300 hp and you're at a certifiable sweet spot, at least in this driver's opinion.

+1

My conversion is about ten years old with no problems. Lots of torque. Miss the engine braking deceleration from a lower mass piston/higher compression 2.8L, but you can have that as well with $$ mods from someone like Jeff Gamroth.

http://forums.pelicanparts.com/uploa...1451917250.jpg

Tremelune 01-04-2016 07:01 AM

What in the world is that intake?

Looks like an attack ship off the shoulder of Orion.

Randy W 01-04-2016 02:42 PM

Varioram (early without script) with JRZ external shock reservoirs mounted on it...

uwanna 01-04-2016 03:20 PM

I did a 3.6 964 conversion into my '80SC in 1992. Back then there were no fancy retrofit kits offered anywhere, had to figure everything out and craft the things that were needed myself as well as sort out the wiring. All in all, it wasn't all that difficult!
Lo 23 years later, having used the car as a DD for ten or so years and as a weekend car since then, I could not be more pleased with the outcome. The retrofit resulted in a
virtually trouble free car that is as dependable as any DD I've ever owned. Great upgrade from the original '80SC with that trouble prone CIS system!
My first step at an upgrade was to install a 3.2 Carrera motor, but it didn't give me
the "kick in the butt" that I was hoping for, so a 3.6 it was.
The added horsepower is great, but the torque is what rings my bell. A good friend
911 Carrera owner drove my car and came back saying "Man that thing pulls like a V8"
To anyone considering a 3.6 upgrade, go for it if you can financially pull it off, you'll
never look back!

Bill Verburg 01-04-2016 03:36 PM

I've had 3 different 3.6-3.8 motors in my '76

first was in '94
'93 964 3.6, it was nice but I wanted a little more power
http://forums.pelicanparts.com/uploa...1451953731.jpg

so in '00
'97 3.8 RS vram, this one was too much for the 915 in std form
http://forums.pelicanparts.com/uploa...1451954071.jpg

soo in '04
'95 993 3.6 w/ RS cams, this one is perfect
http://forums.pelicanparts.com/uploa...1451954160.jpg


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