Is a budget turbo build possible
 

I currently have an 89 carrera with 930 suspension and brakes, large front mount oil cooler and no engine. The car was previously powered by a 300 rwhp naturally aspirated race engine with stand alone engine management. The car wasn't streetable, and as such I hardly used it. I sold the race engine and bought a solid 964 3.6 core with intake manifolds and a stock ecu. I can't seem to motivate myself to put the car back together because I'm afraid it will be too boring to go back to stock. What would it take to go boosted on my 964 engine? I know it will take some money to get it running either way but I'd like to keep my future outlay close to 10k. Can i do anything with that budget, or would I be better to go as inexpensive as possible and try to enjoy the stock 3.6? Any advice is appreciated. I've even been mulling over another big NA build, but i don't think 10k will get me where I need to be. Also considered doing a v8 conversion but if that changed the cg height and ruined the driving character of the car, I would hate it.

It all depends what you will be using the car for. 10K is not a big budget. You might want to sell the 3.6 and use that $$$ as well. I would not go the V8 way but thats just my opinion its your car. As far as the cost on boosting your engine It might be better to try and find one done from a reputable source. Either way you already know you will be dropping $$$$.

Depends on the budget. I'd possibly consider horse trading up to a 3.3 engine ready to go. They're unbelievably simple and there is no mods needed to get it in. Plus they kick ass!!

Do you have to build the motor with that 10k? If not, it should be pretty easy to get a low boost turbo setup put together for less than that.

The engine should be ok. You obviously never know, but its supposed to be low miles and it had a good leak down. My educated guess is it will work for a while as is. Can 964 plastic manifolds be used, or will those have to go away? It seems like electromotive is fairly common for engine management. I haven't priced them at all. I know I won't be able to get into a motec, and I'm not sure I want to go mega squirt, hopefully there is something in between

Again, 930 engine needs no efi complication and costs. Cis is simple and effective to 350-400 easily.

I'm no fan of bastardizing a 911 with a V8 but if the car was never going to be anything more than a driver, and if my budget was on the conservative side I'd certainly give it a good hard look.

A modern, common, cheap-to-build GM V8 is considerably lighter than, for example, a 3.3 turbocharged engine and its CG is probably better as well, although I haven't specifically looked into that.

If your 3.6 is solid - and you indicated it is - you could sell it and probably fund a 500hp build using a V8. Oh, and that ten-grand would still be burning a hole ...

That's a pretty good point

Yes that is a good point but then again it all depends on how you see your car..Personally I would never do it but if that is something your willing to do it might fit the bill.

I think the 3.6 engine is 11.3/1 compression ratio from the factory, so I'm not sure how well that's going to work with forced induction. Seems too high even for a low pressure set up. Put stand alone EMS, ITBs, and a free flow exhaust and you can easily get 300+ NA hp out of that engine with no internal mods. Then lighten the crap out of car = big fun.

$10K buys you a running 930 engine. Swap them out and keep your 3.6 to preserve value. Sell the extra engine when you sell the car.
WIN-WIN.

Not sure how keeping the 3.6 pickled preserves value when the '89 would have had a 3.2 originally no? Running complete 3.6 can probably fetch 10k, so if you go the route of sourcing a complete running 930 engine I say sell the 3.6 to finance it. Now you have turbo for almost 0 invested and you have the 10k budget to upgrade the 930 engine. Bigger Win.

Whoops I thought the car was an '89 964. That's why I thought the 3.6 was stock.
Never mind ...

It does!? That's happy news for me :)

My aim is to swap a 930 engine into my '78 Targa when rebuild time comes. Mothball the # matching piece and work some magic to fit intercoolers under a duck.

V8....Nooooo

http://forums.pelicanparts.com/uploa...1420841425.jpg


Jocke.

Check out this build.... http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/623200-frederick-great.html

http://forums.pelicanparts.com/uploa...1367930889.jpg

http://forums.pelicanparts.com/uploa...1367340377.jpg

Answer to the original question is NO.

Some DIY guesstimates:

1. Headers - $2k or less
2. eBay IC - $100-150
3. Turbo - $1k or less
4. ECU programming - $500+
5. Couplings, aluminum IC piping, clamps, etc. - $500
6. TiAL F46 Wastegate - $500
7. Blow off valve - $300 or less?
8. Turbo headpipe and muffler - $500-1000?
9. Turbo tail - $???

Just throwing out some #'s, nothing comprehensive.

I think you could build a nice 3.6L based turbo engine for $10K. One third of the expense will be lowering the C/R. More expensive bolt-ons can be swapped in later.

Jim2 supercharged a 3.6 in a non varioram 993. This could be a good option.

Pm him, I bet he would share what he has done. This you could do for under $10k.

The issue with a 3.6 is the high compression so you cant run much boost - maybe 1/2 a bar at most.