cale

OK, I hope the guys at Huntley Racing don't get pissed at me, but I e-mailed them a while ago asking what the state of affairs was with their S2 supercharger, and today I got a reply back. With all the talk of forced induction leaf blowers and whatever I figured it would be fitting to post something serious on the subject. Here is the e-mail I recieved:

The SC kit is a reality and will be out within a few weeks. The kit has
been kept a little hush hush since we have sold out the 30 pre-orders
already and are not selling any more untill those ship. The kit makes 100
HP over stock and is a complete system with electronics, wiring, SC,
manifold etc... The kits are $6000 or so. They will be up on the site with
dyno charts once they are released to the public.


Derrek Huntley Khajavi at
Huntley Racing
Porsche Performance
Design, Development,
and Manufacturing. www.huntleyracing.com
Open M-F 8AM-5PM & SA 10AM-2PM
(619) 448-3800 X201 Voice
(619) 448-3804 FAX
dkhajavi@huntleyracing.com
'We Sell Horsepower!'

Now if that kit will works how they say it will that means we could have S2's in the realm of turbos with 300 HP. Not cheaply, but better than almost everything else out there. Now to wait and see the dyno charts...

jim968

I think this kit is also going to be available for the 968... tempting. But I'd feel obligated to do a brake upgrade, which would probably require moving up to larger diameter wheels... it just keeps adding up. then there's the issue of shortened clutch life, probably less engine life, etc...

Jim, I _hate_ my 'practical' gene...

cale

I wasn't sure about the 968 so I didn't want to mention anything and seem stupid . One of these on a 968 would be killer, then the competition with the turbos could be really interesting.
Actually some more technical speculation on how this supercharger is likely to fare compared to a turbo could be pretty interesting. Because of the higher compression ratios in the S2 and 968 should we assume it will be a low pressure setup? Roots type or centrifugal? Will it only be effective at the top end or should it provide a boost through the entire RPM range? If its low pressure will it really be that much tougher on the engine?
Practicality is such a b*tch sometimes, but sometimes you have to have fun . Who knows, maybe the stock brakes can handle it well enough, and everything can be done in stages. Though logically the best way would be to do the wheels first, then brakes, and then SC. Maybe throw in an LSD while you are out shopping. Leaving the realm of the bank account behind this supercharger strapped to a 968 could make for one mean Porsche.

trebor_quitman

Whoever gets one of those things is gonna hafta share the wealth of knowledge with the rest of us. I can see it now, the first proad man to get one will be handing out photos and cigars and we'll all be looking at his new born Supercharged 3liter with envy. I just payed off the 968 motor thats getting a rebuild and going in my 88 944na. I'd love to drop the N/A part. +100hp Hopefully those numbers aren't bogus like I keep hearing about all the chips and other mods for the 968.

Tabor

If it adds 100HP that would be a 42% gain. That is entirely reasonable for a supercharger application.

Tom Pultz

100 HP added to a stock 208 HP S2 is 48% and that is reasonable even at the 5-6 psi boost this unit will run.

Based on the information I got from the initial developer the plan was to run a Whipple twin-screw supercharger. See info at
Whipple Superchargers.

The unit was supposed to produce full boost by 2000 rpm. The stage I kit was non-intercooled but there may also be a stage II with intercooler and higher boost, although I'm not sure how much higher you can go with the stock 10.9 or 11.0 CR. With these CRs you get about the same cylinder pressure with 5-6 psi boost as you do on a 944 turbo.

I have a picture of one of the preproduction intake manifolds. I could post it on my web site with all the information I have if anyone is interested.

Hmmm. Let's see. I have the suspension, the brakes, the wheels, the tires, the LSD... all I need now is more power

Cheers,

Tabor

Sorry, I was thinking of a 968.

[ 07-10-2001: Message edited by: Tabor Kelly ]

jim968

Well, lessee what kind of speculation we can come up with here... first, both of the 3.0L engines have 16 valves, so they already breathe pretty well across the rpm range. A supercharger will still help that, no doubt, tho' maybe not as much as it would on an 8V engine.

I almost wonder if the S/C will kind of make the 968's Variocam redundant, since it's mostly there to help breathing at higher (?) rpm.

But yeah, it _has_ to be low-boost kind of thing with the CR these engines already have. Even intercooled, it'd be a detonation risk (!) at turbo boost levels.

And yes, I'd want bigger brakes... the factory felt that the 952 needed them with the jump from 217 to 250 hp... we're talking well over 300 here, so yes.

But I just happen to have that set of cheap Italian 18"s in the basement....I just didn't like the looks of them when I got the car...With hindsight, I shoulda popped the extra $$ for 17"s when I replaced them.

And there's that Jeff. Pilot stock....hmmm...

Jim, considering postponing retirement another year....

Tabor

Actually, hondas with VTec (variable valve timing) get more power from superchargers than hondas without VTec. I assume that it will be the same for porsches.

trebor_quitman

Hello all,

I went over to the whipple supercharger page like Tom mentioned and there appears to be a few threads on their forum about this very same subject. I didn't recognize any names from here so I figured I'd pass that on so you guys could check it out if you haven't allready. I Can't wait to see those dyno charts.

Bob

John Anderson

This might be of interest to you guys.

<a href="http://63.136.85.109/forum/default.asp" target="_blank">http://63.136.85.109/forum/default.asp</a>

--------------------
Click on the modifications link, then look for the thread on the Huntley Racing Super Charger.

Good Luck!

Peter L

John,
Such an instigator, I love it.

John Anderson

I'm not instigating,

rather I want the public to which our business as "tuners" solicit, to read the facts and truths about the various companies they might come accross in their efforts to improve on the highly evolved German sports cars we all drive.

Just the facts ma'm, just the facts.

Take Care!

Huntley Racing

Hi John nice to see you back on the list.

Peter L

I know John, I was just breakin' your *****. You're right the public does have a right to know.