Installing Whipple supercharger

It's been over six months,but it is now in the works.I'm about 50% complete,so far its been going as well as can be expected.I'ts quite involved,and requires tweeking ,but the kit is complete(so far),and the quality of components is excellent.(This is a Supercharging of Knoxville kit.)There has been some interest on this BB in supercharging,so when I'm done with the installation,I'll give a report on this kit,and answer any questions I can about it.For now,I need some help on an engine #,64G00762,is this a 1986 engine?Thanks and wish me luck,it's going to be a few more days before I light it off.

We are all watching and keen for any feedback, positive and negative-hope there is none!.
How much was the kit and how easy to install, level of expertise and time?.
Juan Ruiz has recently done a turbo conversion to his Carrera and so I am keen to see your out come as I have an 86 also.
I am borderline to take the plunge and upgrade to a 930 if I can raise suitable funds with my 86 cab. Are you fitting an intercooler, how many bar is the boost?.
thanks and good luck!
rgds Ben

I too have been thinking of a supercharger. In the hopes of not beeing too brazen, could you keep us informed of the costs incurred? Much thanks.
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Paul
78SC Targa

PLEASE keep us informed! This is an interesting subject, I'm also thinking of doing a whipple solution during a rebuild on my 3.2. Are you going with the low-boost or high-boost whipple? Since your car is a 86, I assume yours is also a 3.2 application. Are you adding the turbo tail or moving the A/C condenser to the right wheel well? Paul has a question about pricing, the low boost (stock pistons) whipple's current kit price is $7,400. The high boost (custom pistons) is somewhere around $12K (not what I'm interested in).

Updating the project,ease of installation I would have to say is best described as tedious,this kit does not just bolt in.There is a lot of "modifying to fit" going on.The instructions are incomplete,and minor hardware is missing.If you gave this kit to your favorite wrench,most would probably send it back,and if they diden't,they better have a lot of patience,and you better have a fat wallet(today will be day #4,and there are two of us working on it with at least two more days involved.You don't have to be an expert mechanic to install this,but I feel you need more than basic skills to complete it.The big slowdown is getting stuff to fit right(I think this is because of more than one type of kit being available,and we have a few parts meant for a different engine).The kit cost $7400,has the small intercooler,no turbo tail,and low boost.Power to weight with this unit installed in my car is 6.28,to compare ,a 3.5 turbo is 9.22.Does anyone have a year for the engine # in my prior post? Ed.

EZ,

Your engine is indeed an 86'.
64G00001-07495 are 86' engine s/n's.

Huey581
86' 911 Cab

I know I'm asking a lot, but you could post what you mean about modifications?
Does this include cutting or welding?
Does it include making mounts anywhere in the compartment or on the manifold?

Do you have room to work--or is the engine dropped?
Summarize what you got and where things go if you have a chance, or point to a URL (I'm sure by now your patience must be thin by now)


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Kurt B
1984 911 Carrera Cabriolet
75 914 1.8

Like Kurt said.. It's a lot to ask, but I'd love to know. If you have the time to post that kind of detail it would be very much appreciated.

Jeff C
81SC

I'll try and answer all questions that I can.You don't have to drop the engine to install the kit,it would be easier with the engine out,but I dont feel it would be worth the effort.The slow progress has a lot to do with poor instructions.They are out of order,and incomplete.All the mounts are included,and you should not need any special tools to install the kit(I did some tig work on one of the brackets,it was not the right size for my cooling fan housing).I'll give a full report,including my opinion of this kit when it's complete.Thanks for the engine # ID.Ed

I am also interested in the results. I have an 82 SC that I may supercharge someday. Has anyone tried the Paxton SoK kit for an SC? I've heard that the Paxton superchargers are easier on engines because of smaller and smoother boost levels. I am looking for more power but not too much and I definitely want to preserve as much reliability as I can.

Olivier
'82 SC

$7400 ? Damn - they ought to come to your house and install it for that kind of cash. I hope the hell you get an extra 200 trouble free HP or I'd be pissed. These people got a lotta balls asking prices like that. There are a few folks out there doing the same conversion from scratch (such as Mark Hargett). They prove that it can be done one hell of a lot cheaper. Kits for ANY other car are half that price - or less. 911s aren't the only cars they make kits for, this is the P tax at work again.

The Paxton unit is easier on the drive train. The torque curve looks more turbo-like. Those kits were $5K last time I checked, but that's been a few years back.

Yes the Porsche tax is included with this kit using the $911.oo x 3 formula.The Paxton is much easier on the wallet,but I went with the Whipple because it runs a lot cooler,it kicks in right off idle and stays smooth all the way to redline,and I don't want a whale tail.I investigated doing it from scratch,and I'm sure for some people this is the way to go.This kit is going to take me over a week to install,and to be honest,that is all the time I can spare.While I'm sure that you can save money that way,I've built enough stuff in my life from scratch to understand that projected savings on a project like this are hard to meet.No,Rarly8,it won't make 200 "trouble free"hp.,and they won't come to me and install it,is there an alternative that will?

Guys keep us posted with full report, im very interested in this type of proyect.
Regards Juan

You're right, there is no other way to get pig power from a 911. You've got to pay, and pay big. Everyone involved with any aspect of the Porsche market does their part to keep the cars exclusive by keeping the prices at an obsurd level. Every now and then I get my belly full of it. My 930 motor project is at a pivital point right now. One of my options is to just say to hell with it and throw in the towel. I could build a blown aluminum big block worth 1000+ HP for the money I have in the 930 long block alone. Damn right that pisses me off. Juan must be feeling the same about now. Leave the puny six alone and get a real bang for the buck somewhere else.

Sorry - had to vent. About the supercharger, one of my buddies took his car to SOK and had the Paxton installed by them for $5K a few years back. A year later he sold that setup and went back to SOK and had them install the whipple. That cost him a little over $7K. He had them add A/C while they were at it so the price went up from there. Both units make good power, but niether is scary fast. That kind of performance can only come from a $25K modified 930 or a 500HP small block.

EZ911- Seems like your kit whilst on initial appearances seems expensive, it really is similar in price to Juan's Turbo installation (except someone installed his).
Yours already has the intercooler whereas I imagine Juans intercooler will set him back another 2K inc. tail etc. plus your intercooler will not interfer with the A/C condenser.
Both sytems have their merits and drawbacks but seem fairly competative. I did not feel much 'lag' with Juans turbo, but this may be because the Carrera itself has higher compression and better low end than a stock 930.
The Whipple claims more stable power thru the range than the Paxton, or turbo, but this may take it's toll on the 915 tranny?.
Still, all said and done none of these power modifications we are discussing or concidering are designed with reliablility and economy in mind!
If these were our concerns, we would not be driving Porsche's!
However you look at it Power = $$$$$
And eventually will lead to repairs/rebuilds and more $$$$.
Someone posted recently, If you can just about afford a Porsche...... You can't!.
If you want value for money power for $$$ look elsewhere than porsche! I personally did not buy a porsche to own/drive a fast car!
My $$$$ to date 15 months $24,000 (purchase/repairs)..... No Regrets!



[This message has been edited by 86ragtop (edited 02-04-2001).]

RarlyL8,you are not alone the more i get into this car the more i think of what you said but insted of a big block i will go with a twin turbo supra or a RX-7 which i can build the mother of it for half of the price of what takes to do a porsche,don't get me wrong i love this cars and they are the kings in the cornering dept,concerning HP i can see this is a dead issue,maybe a M-3 be more practical,not everyone is rich,but seems thats what everyone thinks,look at the price of parts,so i share with you the same feelings.hate them but love them....
Regads Juan,From Guatemala city in south america.