Would you add a supercharger to your Cayman S if there was a complete kit available? If a supercharger can add 120 Hp to a 3.4 engine, this would be a reasonable option vs a 3.8 transplant.

 

Is 41% a reasonable increase without changing compression? I would have guessed it to be more in the range of 25-30% tops without having to go to race gas only.

Regardless, if it were possible to do the upgrade, I would find it to be a much more economical substitute to swapping motors. The only downside is, if you swapped motors, you could add a supercharger to the 3.8L

 

With all the bolt on upgrades you can do(i.e. Evo intake,headers, high flow cats, GIAC, Exhaust) you will get about 20-25% above the final number. I would suggest if you are going to do it all then do it all at the same time!!!

But if you want power I would say that the S/C does a good job. My Boxster S is not the same car.

 

RUF offers a supercharger kit for the Cayman S.

 

How much of a measured increase did your SC provide over stock, in terms of what was measured before, and what was measured afterwards? That would be a great litmus test for the rest of us to go by. I haven't read up on your SC installation, but my assumption is that it is a low pressure model (5psi or thereabouts?) so you didn't have to run down to the race gas pump every other day

Also, I've noticed that the performance upgrades for most cars are never additive, meaning if a K&N "gives" you 5HP, and an exhaust gives you another 5HP, the sum total of these two is usually less than 10HP for some reason or another; either by bloated claims or some other ineffeciency. I'd love to get +20% by adding the GIAC/Filter/Exhaust/HiFlowCats .. I mean, that would put me over 330HP @ the crank; I just don't see that happening without some work done on the internals (reworking heads, new cams, more displacement). Of course, perhaps this is what the 987 owners can expect out of their 3.2L motors that have had all the previous tweaks done for them at the factory.

 

I would if there is someone in Kuwait who would install it correctly, I can imagine a Cayman S with a Supercharger or If you dont want to get into that fuss I highly reccomend a Lotus Elise or Exige / S.

 

Why not. IF you plan to keep the car...

 

Porsche states 2000 Boxster S is rated at 250HP mine now is making 285WHP (345+/- Crank HP). Any more question I will be more then willing to answer or you can call Imagine Auto @ 913-310-9927

 

So that is roughly a 31% increase over stock, using the same 17% for the transmission.

You opened the door for 20 questions, so hold on to yer butt -
Did you do a baseline dyno run prior to getting the SC installed?
Did you have your motor rebuilt prior to getting the SC installed?
If so, did you get set up for a lower compression ratio?
What PSI is the SC system running at?
Is your transmission 6 speed or slushbox?

and most importantly

are you HAPPY with 285RWHP, or are you after more!!

 

More is never enough. ..I will always want more but not much more in the Boxster platform...Over 375WHP would be too much in this car. I want it to be drivable and over 375 it would become a handfull as traction is already an issue (no PSM)...Remember this is no 911 so there is no weight over the rear wheels to assist in the traction . But if you want the fastest way around a track this is it. The mid engine layout is perfect for the track!

 

If the 3.8L swap is not enough, I may opt to just put a S/C on my car. I'm assuming that I'll be able to fit a kit like the IA kit to my car as well since the engine configuration is the same as the 3.2L.

Dave

 

You will not want to...400 crank HP will be just silly in your car. (exp since you have no PSM like me)

Do not get me wrong I still want to build a 4.0 or 4.1 and S/C it just to see how fast it will be.

Dave ya want to donate your old 3.2 for my project

 

Josh,
My 3.2 is being put into a 2.5L boxster in Canada somewhere. No longer available. If I had known about the 4.1L option, I would have experimented with it too.

Dave

 

By the way, I'm sure you are probably right about S/C the 3.8L. I just haven't driven it yet, so I don't yet know how sick it is going to be as is.

 

I think a SC Cayman S would be close to a perfect sports car...light, midengine and probably 400 plus HP ......