MN

Mark:

Excellent point. I didn't even notice that Eric and Dubai944 are also running S2 and 968 motors their 944 chassis. Eric was able to install the supercharger together with an intercooler without having even to remove the stock hood latch and the headlight linkage.

MN

sqml

thanks for all of the input guys. I really did not know that you have to remove the AC for the SFR kit. Im kinda bummed LOL, because thats the kit that Im really interested in.

Dubai944

I don't have AC on the race car of course, although sometimes I wish I still did.

You could keep the AC with the SFR kit if you have a manual steering rack or switch to an electric pump (I have one) to free up the space where the power steering pump sits. Then you can swap the alternator to the other side and leave the compressor where it is. A bit of work and not the most convenient, but certainly possible.

odb812

I'd be a little careful dealing with SFR. There have been a few threads in recent months on the 944 turbo forum about poor communication and late shipping. I've done a good deal of business with Tim in the past and have had a great experience with SFR, but that was years ago and the feedback I'm seeing on the 944 forum is more recent and relevant.

If you're looking for a simple supercharger kit for the 968 I don't know why you'd look anywhere other than 928 Motorsports. Carl has great communication on here and has experience supercharging high compression N/A motors on various platforms.

944forever, you must have really been bit by the bug if a 968 motor in an early 944 isn't cutting it for you. Have you considered swapping in a 944 turbo motor? You could get the horsepower you're looking for with the 968 motor + supercharger without cutting up your car. Also, it will probably prove more cost effective as well when you consider how much more 968 motors are going for. Sure the 968 motor is more reliable and serviceable, but once you supercharge it, all bets are off.

rhs63

If anyone is looking to buy the 928 Stage 1 kit, I have a factory refurbished and rebuild SC for sale. Just reduced the price to $2,950 incl. shipping (firm).

https://rennlist.com/forums/for-sale...arger-kit.html

Eric_Oz_S2

This is the reason i built my own kit. None of them really hit the mark for my needs as i wanted an intercooler and the sfr kit was expensive and to do it properly would still require tuning. Don't underestimate the time that this requires though. There were a lot of things to sort out with the install and just procuring all the parts took quite some time.

sqml

do you guys think adding a set of race headers and water injection system on the 928motorsports stage 1 kit do anything?

MN

rhs63:

May we ask why you are selling (SC having failed once)?

(If you don't want to say on Rennlist, you can PM me.)

MN

MN

odb812:

I think swapping in a 951 motor then bringing up the power to 300HP probably cost more (time or money) than installing a SC for the 968 motor.

With a 300HP 951, in effect one has a low compression 150HP with a low-tech 150HP turbocharged motor added.

With a supercharged 300HP 968, in effect one has a high compression VVT 240HP motor with a 60HP supercharged motor added.

On track it probably doesn't matter, but on street where most driving is done at lower revolutions the latter seems to me the better approach.

MN

Dubai944

Will it do anything?

It will definately reduce your bank account, add another water tank to fill up, give you some new tuning challenges and make your car nosier!

It might allow you to make a bit more power - if you can tune it to suit the additions. Boost levels should go down but flow should increase slightly with less restrictive exhaust and water injection should reduce charge temperatures. Both good in theory.

odb812

I don't want to derail this to a s/c 968 vs 951 discussion, but the thought is the going rate for a 968 motor is much higher than for a 951 motor. You could buy a 951 motor and put it in your car for less than you could sell your 968 motor. From there it is much cheaper and easier to get 300hp or more from the 951 motor and you don't have to cut up the body or make any custom pipes, you can use all stock parts.

I hear the street vs. track argument all the time and I think it's more of a matter of what you like and how you drive the car. I like the on-off power of a turbo just as much--if not more--on the street as I do on the track. I'd say it wouldn't hurt to drive a turbo car before you sink a few grand into yours.

Don't get me wrong, if a 240hp 944 is good enough for you(that is more than enough car for most on the track), your car is the perfect setup with the stock 968 motor. If you're looking to modify a motor, though, the 968 motor is not the best choice for your car IMO.

Dubai944

Bear in mind you won't get much added power from a centrifugal supercharger kit at low rpm on the street anyway. Most of the kits in standard form barely make a couple of pounds boost by 3-4000rpm and only hit their advertised levels close to the rev limit. You can force them to boost a lot earlier as I have, but you need a custom drive setup and a way to blow off boost up top and the head unit won't live as long. Fine for a racecar setup, but for street if you want a supercharger you would be better with a positive dispacement type which makes boost straight away.

SpeedBump

You guys seem to have missed or forgotten the reason he was looking at an existing kit.

MN

[QUOTE]Bear in mind you won't get much added power from a centrifugal supercharger kit at low rpm on the street anyway. Most of the kits in standard form barely make a couple of pounds boost by 3-4000rpm and only hit their advertised levels close to the rev limit.[QUOTE]

Dubai944:

Correct. But I see this also as an advantage. Have more power when needed (at high revs) and when not needed (at low to medium revs), which is at least 9/10 of the time, there is only little extra power and therefore only little extra strain the drivetrain. I still have my stock NA transmission and a stock 951 clutch. I would be happy if I could get away using my existing drivetrain without things starting to break.

I assume you beefed up your drivetrain?

MN

MN

odb812:

Are you sure?

I thought the 951 motor is the most desirable - and hence the most expensive - of all the motors offered for the 924/931/944/951/968 series. Have seen a few 951 motors swapped into 968s, but never seen a 968 motor swapped into a 951.

MN