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Posted by: mrbubblehead May 3 2014, 08:03 PM

i finally got the engine for my dream car build. it is a 1997 3.6 minus the induction system and brain. i am still in the air about the induction. i am leaning towards the clewette itb system.

my first question for you guys who have done the conversion is, did you have to go to a single pulley system? or was there enuff room to use the two pulley system? clewette sells a two groove pulley with a trigger wheel that would be great for me but i seem to remember reading there is not enuff room for the two pulley set up.

what are you guys using?

Posted by: JStroud May 3 2014, 09:26 PM

I had to take the double pulley off my 2.7, and install a single pulley for my mount to fit, I'm using a 914-6 replica mount made by Original Customs.


Jeff

Posted by: hblyle May 4 2014, 01:02 AM

Saw this on Craigslist
http://sandiego.craigslist.org/nsd/pts/4451509800.html

My 3.6 is still in the donor car.

Posted by: pcar916 May 4 2014, 11:11 AM

I converted to the single pulley because of the clearance issue. The Porsche replica fan/alternator hub I used was from Patrick Motorsports and although slightly big on the ID* easily, it was painless. I sent him my 993 pulley and he mated the hub with a single-row 930 pulley. The only drawback is that it underdrives the alternator.

That means that, most of the time, idle rpm designated by the DME won't start the alternator flowing juice until the throttle is blipped once.

... not generally a big problem unless you have electronics sensitive to current fluxuations.

* .013in. bore on the pulley hub, shimmed with .005in. wrapped around the shaft. That left only .003in. When I asked Patrick about it he told me that it was an exact replica of the factory part.

Good luck

Posted by: SirAndy May 4 2014, 11:22 AM

Single...

Posted by: 396 May 4 2014, 11:49 AM

The factory has a RS single setup. Then there's aftermarket too

Posted by: mrbubblehead May 4 2014, 12:19 PM

yes, im aware of the rs set up. im researching it now. i need to find an rs set up with a trigger wheel.

Posted by: Mike Bellis May 4 2014, 01:50 PM

Why not go with a factory Motronic system? All the engineering is done and the Motronic can be tuned for performance. That CL ad has everything you need at a good price.

I used the Motronic 7.5 system on my Audi conversion and the car starts and runs like a new car. The fuel and timing maps were tweaked for my big turbo and the ECU controls the boost up to a set max of 20psi. It runs way better than any aftermarket EFI system I ever had or drove.

Posted by: pcar916 May 4 2014, 02:31 PM

A turbo chip can be tweaked quite a bit with good results. But, other than raising the redline, does anyone have quantified results on horsepower and torque gains possible with normally-aspirated engines? It certainly isn't as much.

Posted by: mrbubblehead May 4 2014, 03:39 PM

honestly mike, i am a tinkerer. and with this car i have the time and dough to go with itb's.

Posted by: 396 May 4 2014, 05:51 PM

Itb...you might want to look at Rennsport System in Portland. They have a system that will increase that 3.6 HP north of 345 -

Posted by: 396 May 4 2014, 05:51 PM

Posted by: mrbubblehead May 4 2014, 07:02 PM

i have been on their website looking at their pulley systems, but the links to their itb kits are broken....

Posted by: mrbubblehead May 4 2014, 07:10 PM

shit, i mean rothsport website.... i will have to look into rennsport. thank you for the tip.

Posted by: ClayPerrine May 5 2014, 05:07 AM

Here is what you need for an intake....

SUPERCHARGER!!

Posted by: Justinp71 May 6 2014, 12:01 AM

PMO Carbs!!!

I guess they are starting to be a thing of the past... but I still love them.

Posted by: SirAndy May 6 2014, 11:12 AM

I would have never done this swap with a carbed motor.

Nothing like a car starting up each and every time with the first turn of the key, no matter where you are and at what altitude.

Posted by: JmuRiz May 6 2014, 11:31 AM

If it has stock DME FI, keep it...carbs on a 3.2 or 3.6 would be insane.
Heck, I've given thought to keeping CIS on my 2.7, just for ease of start.

Posted by: ClayPerrine May 6 2014, 01:21 PM

Why go with an overgrown perfume atomizer when you can have a modern, computer controlled system that starts and runs well everytime?

Posted by: mrbubblehead May 6 2014, 01:33 PM

carbs were never really on my radar, that is why im almost certain i am going with itb's.

Posted by: siverson May 6 2014, 02:17 PM

thats my craigslist ad. it came off my 3.6 in my 914.

im switching to itbs because i always wanted to. but its not a smart $/hp decision. im well over $10k in the new system.

Posted by: pcar916 May 6 2014, 02:20 PM

Carbs do sound fantastic combined with a sport exhaust. But yes, they can be troublesome.

Posted by: mrbubblehead May 6 2014, 04:55 PM

i cannot figure out what this cover is. on the left is the cam cover, and the right i have read that this should be the power steering pump. but it dosnt appear to be any sort of pump. any ideas? what ever it is, i think it goes away and is replaced with the cam sync adapter for sequential fuel injection. any ideas as to what is under the right hand side cover?

left side
http://s722.photobucket.com/user/mrbubblehead_photos/media/36engine001_zpse2fea10d.jpg.html

right side
http://s722.photobucket.com/user/mrbubblehead_photos/media/36engine002_zps0cef51bb.jpg.html

Posted by: SirAndy May 6 2014, 06:11 PM

Not sure what was there originally, but i blocked both of mine as i no longer need them ...

Posted by: mrbubblehead May 6 2014, 06:15 PM

cool. what year is your engine?

Posted by: SirAndy May 6 2014, 08:18 PM

95, pre vario ram ...

Posted by: pcar916 May 6 2014, 08:20 PM

That covers the rear of the cam where the power steering drive pulley is bolted on. The toothed belt goes up to the top of the engine where the pump is, driven by another pulley above and behind cylinder #6.

The entire pump assembly, and other goodies like the AC compressor and cruise control actuator, came with it.

That means I've also found out how many folks DON'T want this beautiful SS '95 exhaust system, and that the 993 heads have four exhaust bolt holes. Thanks to the Porsche engineers who had already figured out that the mid-engine exhaust flanges are 180 degrees different, so 914-6 headers work with nothing more than moving the studs to the other pair of holes.

Posted by: mrbubblehead May 6 2014, 08:28 PM

thanks for the info pcar916. but im not quite sure what you mean by the exhaust. yes, i noticed my head do have 4 holes on the exhaust ports. 2 are unused. i was gonna see if its possible to swap the original headers to point backwards.

Posted by: Elliot Cannon May 6 2014, 10:24 PM

I really like the motronic system. However, I've had Webers on my car for 10 years. It starts up every time regardless of where I am or what altitude.

Posted by: pcar916 May 7 2014, 03:08 PM

With the engine pointing in the correct direction in our 914's the 914-6 headers will require that you to move the studs to the "other" two holes so they go to the rear of the car. You'll also need to order the metal exhaust seals to use in addition to the normal gaskets. They're a bit of a pain to get into position while the headers are going into place, but the heat transfer into the header will be better with than without them.

I thought about using the 993 headers and fabricating my own exhausts, using them as a core. But the heat-risers on the 993 headers are in the way and would have to be cut off anyway so it didn't seem worth the effort. It was so much easier to use some already made and weld in an O2 sensor bung in the collector, that I didn't have to do it.

I had carbs on the 2.7L engine before this one and they were great. I did have a lot of jets for tuning, but it always started and throttle response was excellent.

Good luck

Posted by: mrbubblehead May 7 2014, 08:45 PM

i didnt have a lot of time, but a quick look at the 993 headers look like ti would take a lot of fab work to make them work. looks like it would be a PIA....