KvotheYSL21

The main reason I want to send this engine to Lindsey is not only to learn more about it's capabilities... but to take the 170K some odd miles off it, and make sure certain necessary and vital parts are worked to avoid future headaches. I don't know what condition my piston walls are, I don't know if the head could be made to flow both air and temp better... the little things. I'm not trying to make a 3.0 L out of a 2.5. I'm trying to make a 2.5 that is bullet proof as far as I'm willing to take it. My car will never make more than 280-300 at the wheels because I don't want it to. What I want is to be able to match my ability to carry great speed through my corners with corner exit and straight line speed where necessary. Ultimately, I would like this car to be a great tool to get me into cup racing... after that I'll need a far different tool to carry me into professional style racing.

Van

Take the money you'd spend on the SC kit AND the engine rebuild and buy someone's SP1 car. You'll learn all of those things in due time and save a bunch of money in the long run. Trust me.

Whisper

Well, as we hashed out at great length in the ls1 swap thread... everything depends upon your priorities.

Are you committed to keeping it "all Porsche"? Do you just want the most bang for your buck? Do you want something awesome and hang the expense? Do you want something trouble-free, to install and forget, or something interesting to tinker with?

Fox944

the power delivery btwn super & turbo chargers is much diff. The supercharged car will have instant power and likely sound much better then going with a turbo motor imo. If you ge stuck at low rpm on the track, you'll have really good pulling power vs needing to spool up your turbo to keep it on boost.

Forget about doing an LS1 swap and having it be reliable. Even with a kit, you will def. need lots of upgrades to the chassis & the rest of the drivetrain to handle that kind of power. The people who have done LS1 swaps the right way sent a lot of coin.

i would get additional oil coolers & tranny coolers with the charger. And look into what else is needed to keep your tranny in one piece.

m73m95

Fox, I don't believe your thinking of the LSx is correct.

The LS engines are extremely reliable engines (as the design has been around for a millennia). Also, the 944 chassis is more than capable of handling 400+ HP....ask the guys over on the turbo side. I will agree the kit costs a fair amount and its not a weekend project. But like anything else, if you spend the time required to do the job right, you can get a very reliable car.... for 8 to 10k.

I will digress as this argument is already going on in another thread..... but its a good idea

KvotheYSL21

Yes, the LS1 scares me, as I did some research and found that to properly do such a conversion is around 11k. Speed costs money, I know that... but my racing style is much more suited to supercharged power and spending 8-10k my way means I not only know the car and have built it for a purpose, but it's tuned correctly inside that 8k, rather than having to spend more money after the conversion to an LS1. And if I got an LS1, there's no way I could make small changes to my driving style, or the suspension setup as I progress. That's a huge learning curve to jump from 160 bhp at the rear wheels on 225 section tires to 350 whp on 285's or more.

m73m95

Well, if you're going to build an engine anyway, then build it with low compression so you can boost the hell out of it with the booster of your choice...

Go look up user "Blown944". Sid will set you up right with all the HP you want on the cheap!

FRporscheman

Jeez for that much money and time invested, I'd sell the NA and buy an S2 or turbo. Nice ones can be found in the $5k region nowadays.

Centrifugal superchargers develop max boost at redline... so you may get lots of power, but you'll be waiting for it all day.

Lorax

Actually, the easiest way for you if you are thinking about racing.

Buy an '83 motor, (forged rods, lower compression) maybe just reseal it and replace the bearings.

Buy a turbo kit (Rebuild a k26 to k27 spec ~500, then buy a MAF kit from vitesse racing for 1200) + some 951 headers/x-over

Fill up with e-85

ZOOOOOOMMM!

Run 12 PSI, make over 300whp reliably and you could afford to replce the motor 10x for the cost of an ls1 (not that you would need to)

dmalo810

I think it's cool but would go with those that say the tranny needs to be at least an S or Turbo to handle the increase power. Then you'll want bigger brakes, stiffer suspension, bigger wheels and tires, you know, the stuff you get on a turbo.
Ah be lazy and just sell the **** you got, buy a turbo.

hacker-pschorr

People keep telling me that, my 928 with a Vortech Centrifugal supercharger begs to differ

V2Rocket

does yours have planetary gears?

vt951

So, you're going to end up with a "unique" engine with about the same power as a stockish 944 turbo. Honestly, I think the stockish 944 turbo motor will be more reliable and easier to maintain (and you will have lots of knowledgeable help through rennlist, dealer, shops, etc.). I think reliability of the 944 turbo motor only really becomes compromised with heavy modification. I've left my motor totally stock and day after day, it has not skipped a beat yet.

Another way to look at it is that you'll be sort of maxing out a 944 NA motor, whereas you would get the same performance from a stockish 944 turbo, with lots of room for more power if you get hooked by the boost bug.

Fox944

[QUOTE=m73m95;6320952]Fox, I don't believe your thinking of the LSx is correct.

The LS engines are extremely reliable engines (as the design has been around for a millennia).QUOTE]


M73, I wasnt reffering to the engine being unreliable. SBC's are bulletproof. But the rest of the drivetrain. SBC Torque is too much too handle even for a 968 trnsmission, let alone an 8V 944's. Then you have axles, cv joints, diff's, etc. None are designed to handle the power of an SBC & be reliable. To do this conversion right, it will cost a lot of money.

m73m95

I bet the OP is one confused MFer after talking to all of us lol...

This question has been asked 1 Billion (Dr. Evil voice) times, and has 2 billion different answers. Everyone wants a fast NA, and everyone has their own ideas about how to go about it.

I say search everything you can find for a few weeks, then go with what sounds good to you. Add a turbo, supercharger, displacment increase.... or go buy a turbo and be done with it.