odurandina

TD,

is there any advantage to running that for my slightly expensive street motor?

I would think prolly not??

docwyte

I'm running the Elite Engineering catch can on my car.

I've had no issues with the TPC mounts as far as raising the motor etc. I have gone through 3 sets of them because the motor mount bushing keep collapsing on me. This last generation from TPC seems much more robust tho, I have my fingers crossed...

odurandina

just looking at those, I can't help but think there's not enough surface area.

maybe a minor re-design to spread the load over larger/stiffer bushings?

docwyte

First set he was using rubber bushings. They tore. Second set had poly bushings but he wasn't using a proper sleeve. The included sleeve vibrated around and ovalled out the bushings.

New bushings have a proper sleeve in them, so far so good.

mc05duck

Hey all, I'm a complete noob to all of this, but I just bought my first 1986 Porsche 944 Turbo last Sunday and have plans to convert it to a V8 LS3 Aluminum Engine. I still have a ton to learn, so I may be peppering you guys with questions, if that's okay. Many thanks in advance!

Who makes the installation kit for this LS3 Engine?

Renegade Hybrids?

If the engine is meant to work with a 6 speed transmission, will it still work with the stock 944 Turbo 5 Speed Transmission?

Does Renegade Hybrids or anyone else make conversion kits for the new LS6 or LS7 GM Motors?

PJR1976

I would start here:

http://www.texasperformanceconcepts.com
Or
http://www.allporscheracing.com/V8%20Conversion.html

5 speed 951 or 6 speed 968 can be used... because of the power band I would stick with the 5 speed.

Kits for the ls1,2&3 and Ls6 are available, not sure that anyone makes a ls7 kit right now.

Hope this helps and GL with your build. Keep us posted on your progress.

odurandina

that item was a used low-mile LS3 which turned out to be fraudulent.

PJR1976

Tech question for those who have cowl (Tony G & Disasterman)... so looking at the stock LS3 intake manifold it looks like you can not just flip it backwards, also the lifter galley plate seems non-reversible and the oil pressure switch needs to be relocated. Can you guys let me know how you did it and whats involved. Thanks.

PJR1976

http://store.katechengines.com/modif...px?Thread=True

http://store.katechengines.com/oil-p...px?Thread=True

Anyone use this solution? Any better options?

docwyte

Buy a crate engine from GM Performance. Comes with a 1 year/12,000 mile warranty.

mc05duck

Yeah, I saw that those engines are going brand new for about $8k. Pretty sweet.

Custom Built Motors makes a specific engine for this conversion as well... Anyone used their engine in their V8 conversion?

http://www.custombuiltmotors.com/

Also, what kind of exhaust systems do you reccommend for the LS3 V8 Conversion?

Techno Duck

I am using long tubes from Texas Performance Concepts. Good quality and they fit really well. Plenty of space under the car for everything. They use a 3" collector, so both sides are merged into a 4" single all the way back with a Magnaflow muffler. I bought the rear section from Lindsey Racing, essentially a 4" 'cat-back'. I figured this would save the shop some fabrication trouble. I sorta wish i had just let the shop fabricate everything because they did an excellent job on the exhaust and used stainless for the center section and mated it to the steel section.

Its mega loud right now, i bought a 4" resonator which i will have added in when i get tired of going deaf driving the car .

I was originally going to do a dual 2.5" system with x-pipe, but i figured the 4" would be far easier to make with minimal difference in performance.

mc05duck

John, all in, engine, parts, kit, paint, labor, what's your tally on costs for your conversion?

Techno Duck

Ive been keeping a detailed spreadsheet of everything. All said and done i am looking at about $15k for engine, parts and labor. No paint, that will probably be next year.

I had quite a bit of money into my turbo engine, so keep in mind i recouped a bunch when i sold everything.

I also went all out on the motor build and my part selection. Also i went with a few optional items like the RH radiator, hydroboost, spec clutch that add up quick.

Realistically, a bare bones swap with labor i think can be done in the area of $10-12k. Figure around $5-6k in labor (50-60 hours is fair i think) if you farm the work out and the rest is the engine and parts. Like i said though, this is bare bones.

PJR1976

mco5duck... depends on how wild you want to go. Agree with Techno... can be done for around $15k

Depending on what choices and options you pick the range is prob $15k to $30k based on an LS3.