DarrenD

I know, I know, here we go again right? Another attempt at supercharging an N/A 944. "Buy a Turbo" some will say. "Drop in a V8" others will shout.

No.

I have owned my car for 3 years, previous to that my brother owned it for 9. I'm not getting rid of it. I have been working on it constantly and have made it into a fantastic track car. It's light, corners like hell, and puts a smile on my face everytime I drive it.

But it can always be better, right?

I bought the Rogue Tuning N/A-Tune. I love it. Shortly after purchase I had heard you can use it with a supercharger up to 225 hp. I surely don't need more than that. 30-40 hp is all I need. here we go.

Fast forward a few months and I track down an Eaton M90 Blower. Joshua from Rogue suggests a set of 951 injectors. I buy some, new. I also picked up an MSD HVC 2 ignition coil and an AEM UEGO wideband O2 as well as an exhaust header.

This should be fun.

Let's make some room in the engine bay:



That will do.

Lets see if this blower thingy will fit?



Yep, it fits.

I almost feel like this blower is replacing the other 4 pistons and cylinder head from the 928's 5.0 V8.



It's only day one, but i'm feeling good.

"Buy an LS1" they shouted. Pffft. Who needs "they".

Stay tuned...

odurandina

you talkin' to me?

best wishes. hope it turns out well.

Lemming

Best wishes, I spent 1.5 years of my life and a chunk of $$$ with a supercharged 968, not going there again, EVER!

MB968

OK, I'm rooting for you. I s/c'd (M90) my Mazda KL engine 10 yrs ago. Used the TecGT to run the engine. I'd bite on a roots type for my 968, not as big a fan of the turbo or non-roots type s/c. My KL felt like a big v8 with instant 9psi and roughly 275 ft-lb/300+ hp at the wheels out of a 2.65l. Any encouragement I could give you let me know. I ultimately designed the system when the kit I bought (only one available at the time) turned out to not be very well designed/executed.

Arominus

If all you want is 30hp, go find a 944S engine/harness/dme. It will be easier and give you that 30hp your looking for.

drift a 944

I have been hypocritically telling lots of 944 friends to NOT supercharge their 944, and instead buy a 951 motor and swap it in over a weekend... It was a decision I should have made the first time and should have made the second time, but here I am again hoping to save my faith in the supercharged 944 idea, with my own supercharged 944 project about to undertake "round 2" in the battle against not killing a perfectly good motor.

Anyway, good luck with it. If there's anything I can do to help just holler. And I hope that bracket you made for the blower is just to mock up alignment... That blower will rip itself away from the motor if not securely mounted with a mega beefy bracket!

odurandina

well Elliot,

944 owners seem to enjoy getting themselves hurt, seriously hurt, etc.....

without ever leaving the house.

DarrenD

OD - Yep, talkin' 'bout you. :-)

MB968 - Thanks and I like the sounds of a big V8 feel.

Arominus - No swap for me. Motor is strong, besides I want me some blower whine.

Drift - That bracket is just tacked together. I will be beefing it up big time. Good luck on your project too.

Eric_Oz_S2

The hardest thing I found was actually just getting everything to fit in the engine bay - Rotrex, Oil Cooler, Oil Reservoir, Intercooler plumbing, intake plumbing, etc. That Eaton looks a little close to the body - make sure you have enough clearance. I presume you will get a custom tune done? It took me a long time to get the tune right on mine.

Good luck.

odonnell

Keeping my eye on this. I was looking to do the same, but after being thoroughly educated by RL folk, I put it on the back burner.

I suppose you already have the tune (which is expensive), but you'll need to upgrade the clutch apparently to deal with the extra torque. Not a trivial upgrade....

Eric_Oz_S2

You don't need to upgrade the clutch. The s2 has the same clutch as the na and I'm running 300hp through it without issue.

DarrenD

A question for you supercharger guys, is there an issue with compressor surge like a turbo. I know there are bypass valves, but that seems to be more for an economy thing. This being a track car, that doesn't interest me all that much. Do I use some type of blow off valve though? I've heard turbo BOV don't work, am I missing something?

As for a tune, I am relying on Joshua at Rogue to give me a base tune and then using a wideband, the Rogue logger setup and some dyno time to really fine tune it.

Eric_Oz_S2

You need a recirc valve so you don't just slam the throttle shut downstream of the supercharger. If you don't have his you will set up a pressure wave between the supercharger impellar and closed throttle- not good for the supercharger.

DarrenD

Ok, i think the stock Ford S/C setup had one. I think I can modify for use with my setup. IIRC, there is a small diaphragm that operates a smaller throttle plate that is vacuum operated. Are there other options? What about some kind of atmospheric blow off valve?

odonnell

Interesting, that's good to know.