Porsche 6 in a GTR

[k wright]

www.kinesismotorsport.com/ultimagtr.htm

I don't know anything about the car except that it is to be seriously fielded in the USA, I think in the Grand American Road Racing Series.

Fuel is in the side pods.

[james]

Saves having to buy an adapter plate for the gearbox I suppose

[doc_fudge]

I noticed that they have installed a pair of air intakes where the fuel filler necks used to be.

Perhaps to help with high under bonnet temps?

Andy

[davefiddes]

I know this has been discussed before but having seen it with my own eyes I'm baffled. How do you get a Porsche engine and its gearbox (the right way up) to give you 6 forward gears and 1 reverse when mounted in a mid-engine configuration?

[domster]

You mount it upside down.

[davejw]

Looks good but I wonder if there is enough cool air entering the engine bay to satisfy the needs of the flat six. The cooling fan is now up against the bulkhead without a direct feed.

[davefiddes]

domster said:

You mount it upside down.

If you look at the pics the gearbox is definitely the Porsche way up not the Ultima way up. I guess they must have flipped the diff internally...getting the engine to go the other way sounds a bit .

[andycanam]

I think you can reverse it within the gearbox.

[mkoch1]

if the motor is air cooled why do they have a rad in the front? Seems like extra weight.

mark

[doc_fudge]

Arent the latest incarnation of the flat six now water cooled rather than air cooled?

Wonder what Ted thinks of this particular GTR?

Andy

[ultimasimon]

The 996 became water cooled. A bit of a U-turn as I remember Posrche saying they were going back to their roots with air cooled engines about a decade ago.(Hence the 993 following on from the 964, and original 911). And now we have the Ceyanne(sp?), which uses an incarnation of the old 4.5 litre 928S, but with twin turbo's to boot A lot of the cooling comes from the dry sump system which all 911's have.

Either way they are a seriously amazing piece of engineering excellence, with dry sump, two 6-wire distributors and a ridiculously high compression ratio (turbo excluded).

As for the Porsche engined Ultima, I think Ruff Engineering could get the power up to about 660+hp and that would make for an interesting car.

It's a shame they can't build good reliable V8's though we will have to wait and see with the Ceyanne. Now that would make for an interesting conversion Wonder how much you could pick up a totalled one of those for with a good engine

[k wright]

It is an air cooled motor, the fan is on top of the motor. That would explain the trouble they've gone to the extend the roof air intake. Is the "radiator" a big oil cooler? I've asked the guys at Kinesis to send us more pictures, hopefully they will just post them on the net.

ken

[USCANAM]

I talk to the chap every week who is building the car.
Next time I talk to him, I'll get all the info he's willing to release to the public.
Jack

[PiB]

What's with the rear shocks? Are those little canisters some kind of remote adjustable dambers?

[Steve_D]

They are oil reservoirs. The oil in the shocks gets very hot when worked hard. The extra oil helps dissipate the heat. There may be a more technical description but I think that about covers it.
Steve

[domster]

I have seen these oil canister things on shocks before - for bound/rebound adjustment. You adjust them a click at a time etc.

[Bluesatin]

Dom

Thanks for the technical contribution - I feel fully informed

[james]

I had remote reservoir Ohlins on my Cerbera for a while.

You can find out more at www.ohlins.com

James

[andycanam]

My bike comes with them as standard!

Have to say that GTR does look like a very good car, has it been successful?

[domster]

Bluesatin said:

Dom Thanks for the technical contribution - I feel fully informed

My pleasure.

Next week, how to cross thread a hex nut