spinning disc

looked into this. it's pricey, but subjectively and arguably worth it.

since i'm clearly not being objective about the 3.8 litre displacement upgrade, other ideas on the pro's and con's of this?

thanks.

PeanutinCA

What's the costs? Does it compare to Supercharging? Do a search as there was a 16K miles down the track post on a Supercharge job from a satisfied customer? I wonder which puts out more horspower and torque?

Dylan.

Phil

supercharging adds much much more hp, and torque

On gerts site the conversion kit is 10995 euro!! plus labor I believe the hp is only about 18

KASH '95 993

not worth it....better off buying a TPC supercharge kit and puting aside the savings for a full rebuild "IF" the engine blows

993RS

I did it (but then I am not always reasonable ). I have said this many times before, but in retrospect, I would first go for RoW gear ratios. Half the price, less work and the difference is really noticeable.
The hp gain on the 3.8L conversion is not that much (about 18 hp as mentioned above) but the resulting torque curve is much flatter, giving you more low end torque.

Vinny '98 3.8 C2S

I have yet to see a supercharger at any DE event (attending 45-50), and the 16K model from this list hasn't been tracked. If I was tracking I would go with a 3.8 vs. supercharging; however,
I echo Phil's comments, that there are less expensive routes to get similar performance. In any case, here are some numbers that I got with my 3.8.

I had my car back to back dyno'd after the upgrade. I use my car for the street as well as DE, so I went with hydraulic lifters for lower maintenance. HP gains were minimal, around 11 hp. Solid lifters would probably add another 5-8 hp due to higher redline. (All figures are at the rear wheel.) The torque curves; however, were very different with ~15-28 lb/ft throughout the meat of the range. The car is noticably stronger on the street, and timed faster at every track. It is also more fun. The tighter the track the more noticeable the torque difference.

I had mine done by selling stocks during the NASDAQ frenzy, so during my "ten minutes of fame", $$ wasn't a big issue. I have no regrets, and absolutely LOVE the car. However, today I would go with LSD first and then RoW gears second.

Martin S.

[quote]Originally posted by 993RS:
<strong>I did it (but then I am not always reasonable ). I have said this many times before, but in retrospect, I would first go for RoW gear ratios. Half the price, less work and the difference is really noticeable.
The hp gain on the 3.8L conversion is not that much (about 18 hp as mentioned above) but the resulting torque curve is much flatter, giving you more low end torque.</strong><hr></blockquote>

I agree with Phil, spend $7,000 + for a gear box re-build using 993RS CS gears and steel synchros found in the G50/32 transmission. Or you can change the Ring and Pinion for about $4,000 installed. Either way, you have spent about half of what you did on the 3.8 conversion.

If money were no object, I'd do the G50/32 993RS CS tranny and the 3.8, and the Evo Uprights, the suspension, and....the list is endless, too bad the available money is not!

993RS

If you look on my home page, you can see the dyno sheet for the 3.8L modification.

Steve Weiner-Rennsport Systems

[quote]Originally posted by Silver Bullet:
<strong>I decided that $12K for this kit is just too rich for my blood, and that's not easy to do. I am going with the lower gearing, LW flywheel, and chip as my first "power" mods when the time comes. For now, my car is plenty fast enough for me and I can't yet outdrive it on the track.</strong><hr></blockquote>

Hi:

I would jump in here and simply echo Kim's plan.

The biggest bang-for-the-bucks will be close-ratio gears, LW flywheel, and a good chip. I would only touch the engine when it needs work and then, consider all the options. There are less expensive ways to do the 3.8 upgrade than the Factory kit, anymore.

993RS

Martin,
What are "Evo Uprights"? (Hate to think I might have missed something... )

SundayDriver

[quote]Originally posted by Martin:
<strong>

I agree with Phil, spend $7,000 + for a gear box re-build using 993RS CS gears and steel synchros found in the G50/32 transmission. Or you can change the Ring and Pinion for about $4,000 installed. Either way, you have spent about half of what you did on the 3.8 conversion.

If money were no object, I'd do the G50/32 993RS CS tranny and the 3.8, and the Evo Uprights, the suspension, and....the list is endless, too bad the available money is not!</strong><hr></blockquote>

Someone who wants all this (except 3.8L) should just buy DJ's car. I think it has all the above - ready to go.

SundayDriver

[quote]Originally posted by 993RS:
<strong>Martin,
What are "Evo Uprights"? (Hate to think I might have missed something... )</strong><hr></blockquote>

Phil,

EVO uprights are made to go with a lowered car. Geometry is different so you don't screw up the bump steer when lowering. Not sure if there are other aspects to that part.

Hank Cohn

Mark:

Good answer. If you use the EVO or more correctly, RS, uprights then you must also use the RS tie rods, as they are a different design than the stock 993 parts. You should probably change the bearings while you are at it and you'll need new front caliper bolts, as you will be removing the old ones. It is a straightforward install that does not change ride height but does necessitate an alignment as the toe and camber will be changed. A press or puller is required to remove the outer race from the front spindles and install new bearings in the new uprights.

Hank

spinning disc

thanks for the good advice, guys.

think i'd skip the supercharging then and deal with gears and/or the rear end first.

cool.

(steve: i'm going to do the chip as soon as my wife's landscaping is paid for....)

KINGSRULE

Will the RS uprights and tie rods work on a C4?