Adrian

Yes then you have to upgrade your braking system and suspension, have the engine installed and the interface work carried out, try to work out what you are going to do with the C4 front end, traction control and ABS systems because the GT-2 was rear wheel drive only and THEN get it passed the Swiss authorities on your MFK
Unless a similar conversion has already been done and certified at your testing station or in your Kanton you is going to have trouble.
Just for info they have dropped their price it used to be 50,000 DM for the same thing.
I think a visit to Sportec would be wiser.
Ciao,
Adrian
964C4
GT-2

PS: You cannot install a 993 6-speed gearbox into a 964 C4 without additional modifications. C2 and Turbo 3.6 no problem.

NotTwinTurboYet

No, not directly, my mechanic is always going there to discuss with them and buy parts, and that's the way I get the information.
Try their web-site and give them a call, they already tried all mods possible, I'm sure they can advise properly!
BTW, I don't know if you have a C4, but if yes, you have to consider 2 choices:
- 1 - You keep the standard C4 transmition and gearbox
- 2 - You go for the 6 speed gearbox

Personnaly, I would go for solution #1. My main concern would be the C4 transmition. Can it handle such power? The answer seems to be yes. Ruf itself keep it standard, therefore...
I have no concern about the gearbox, may be I should, but actually I don't. Looking at the inside, I beleive it can handle much more power! Again, Ruf does not modify the gearbox entirely, he only adds a 6th gear (which doesn't seem to be so hard when looking at the difference between a 964 and 993 gearbox).

Option #2 means that you loose the C4 transmition, and of course ABS! Therefore, you have to go for other mods to get back the ABS for instance.

Again, personnaly, I love that C4 transmition, and don't want to loose it!

After a couple of month wondering should I go or not, I finally decided to go for a 3.8L engine upgrade... That was 6 month ago. The main reason is the Swiss law, so hard, here, to make such a modification (twin turbo) being street legal (except if you are RUF...).

Finally, the upgrade (3.8L) was already being carried out on another C4 when I took my decision. My mechanic asked me to wait and test that C4 before going myself to the same modification. Good advice... We went on a track last week with my standard 3.6L engine and this 3.8L C4. Acceleration were almost the same... I should say that my car has a special exhaust and is around 40kg less, but finally, considering the price of the upgrade, I will not go for it!

Of course I now have other projects in mind. First, more power does not mean more efficiency, except on accelerations. I prefer to go for a ligthweight car (I plan to remove some parts from the car...). I won't try to create a sort of C4RS, that's not the point, work would be too huge, but there are some little things we can easily perform, such as exchange seats for RS ones, remove the AC, sunroof, radio, put RS door panels, remove power windows, rear seats, etc... To lighten a car means that you'll have better performance, not only on the accelerations, but also the handling, the grip, when braking, ...

Keep me updated on RUF proposal, I'm interested in knowing the result!

A+

ian c - u.k

my car is a c2 !!!


no reply from ruf today though .
i did not expect one so quick this time around ........... as i asked an "interesting" question !!!
( if they are prepared to consider what i want done to my car , i am sure the price will be equally as interesting )

ian c - u.k

have a look at this !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

http://www.c2turbo.com/forums/showth...?threadid=1232

Adrian

The 3.6 Litre engine is actually capable of 1200 HP on the crank with dual injection per cylinder and twin turbos (plus a lot more I will not mention here). How long it lasts at this level who knows?
The cost is very high though. 850 HP on the crank is about the best you will ever get with any reliability and here in Europe among the top tuners to get a 850 HP GT-2, 3.6L engine you are talking serious, serious money.
Ciao,
Adrian
964C4
GT-2

ian c - u.k

back in uk for the rest of the week , so can now furnish ruf with the details they required , model year , chassis number , mileage etc.

have just sent an email , hope to have a reply soon .
will keep you all posted

ian c - u.k

had replies
sent me costs catalog etc.

cannot do a ctr conversion ( well , they can but didnt give a price , just saying it will be expensive !!)
can do a twin turbo conversion , but this would be based on a brand new 993 turbo engine , and also would be very expensive !!

Sameer

Ian,
Why not just do the BTR2 conversion?

ian c - u.k

whats that ?

Sameer

I'm not to sure exactly what the conversion consist of.

Adrian,
Care to fill us in with details?

Adrian

To the best of my knowledge the BTR conversions are no longer available. The data I have been supplied with clearly states the BTR engines are no longer available.
If you look on the RUF web site it says what they do.
Ciao,
Adrian
964C4
GT-2

ian c - u.k

website has no mention of a btr .

i know they used to do a 993 btr conversion .
it was single turbo onto a carrera engine .

never heard of a 964 btr conversion though .

Sameer

From what I know, the BTR2 is based on the 964 with an increase capacity to 3.8 litres.

ian c - u.k

is it tubo ??

Adrian

No it is not a tubo
However it is a turbo.
I have some pictures somewhere I will post them (with permission) if I can find them.
Ciao,
Adrian
964C4
GT-2