Ultima Audi V10 & BMW V10 & V12 and other

Ultima Audi V10 & BMW V10 & V12 and other

Author
Discussion

GTRene

Original Poster:

16,583 posts

225 months

Monday 7th December 2009
quotequote all
found some non chevy engined Ultima's, ofcorse there are more/others but here a few to start biggrin

Some engine conversions for the Ultima...

>> This is the second run of our V10 BMW powered Ultima Can-Am with all the ancillaries re-engineered to fit within the body and engine bay of the Ultima.

http://www.youtube.com/watch?v=yfTnuL9G__s


>> Dyno test at van Kronenburg motorsports of an Ultima can-am build in holland and running a Audi / Lamborghini 5 liter V10 engine. more info on this car can be found on www.mkb.demon.nl


http://www.youtube.com/watch?v=xkDBAk7xEUc

>> Ultima with BMW V-12..

http://www.youtube.com/watch?v=x31KyRZLR7c

there are also some with Lexus V8 and audi V8 or bmw M5 V8 etc, so if you have some video you can drop them here if you like biggrin

GTRene

Original Poster:

16,583 posts

225 months

Monday 7th December 2009
quotequote all
Swedish Ultima GTR Twin Turbo goes from 0-340 km/h (0-211 MPH) in 19 seconds.
Facts:
4 L Lexus V8 -twin turbo.
Porsche 6 speed gearbox.
962 hp on regular gas.

And yes, it's the first time he drove it flat out. Before this event he only took a test drive around the block(coment with the video)

http://www.youtube.com/watch?v=P3y7qbSCB44

Lexus V8 twin turbo madnes biggrin

spatz

1,783 posts

187 months

Monday 7th December 2009
quotequote all
GTRene said:
found some non chevy engined Ultima's, ofcorse there are more/others but here a few to start biggrin

Some engine conversions for the Ultima...

>> This is the second run of our V10 BMW powered Ultima Can-Am with all the ancillaries re-engineered to fit within the body and engine bay of the Ultima.

http://www.youtube.com/watch?v=yfTnuL9G__s


>> Dyno test at van Kronenburg motorsports of an Ultima can-am build in holland and running a Audi / Lamborghini 5 liter V10 engine. more info on this car can be found on www.mkb.demon.nl


http://www.youtube.com/watch?v=xkDBAk7xEUc

>> Ultima with BMW V-12..

http://www.youtube.com/watch?v=x31KyRZLR7c

there are also some with Lexus V8 and audi V8 or bmw M5 V8 etc, so if you have some video you can drop them here if you like biggrin
when I see that loom of the BMW I am so glad I went the LS route !!! And you definetely should read their work on converting the 7 speed SMG to a transaxle, my respect for event trying, if it works I will pull my hat and worship these guys. They must have too much time at their hands.....

Edited by spatz on Monday 7th December 16:55

ROWDYRENAULT

1,270 posts

215 months

Monday 7th December 2009
quotequote all
Guys: Bottom line is, for the average guy with a budget that is just enough to do a car right the LS the answer. Now with factory support that's even more obviously the way to go. There is another group of builders that have technical and monitary resources well beyond the rest of us and it will always be intresting to watch and applaud what they accomplish. But until one of them comes to market with a complete engine, engine managment, clutch and transaxel set up with an upfront stated price I for one will suggest to the average person contemplating this build to keep as simple as possible. Lee

spatz

1,783 posts

187 months

Monday 7th December 2009
quotequote all
i admit i am more into the driving than into the building.....

GTRene

Original Poster:

16,583 posts

225 months

Monday 7th December 2009
quotequote all
spatz said:
i admit i am more into the driving than into the building.....
me too biggrin but always nice to see what others do with their projects/cars...

I would like one with a "reliable" fast engine so the LS route is good enough....and LHD but those are mostly a bit more expensive...
I also very much like the Gt40 replica's specially those with stainless steel chassis ala CAV or ALU RCR
but Superformance is nice too biggrin

but what is better/nicer Ultima or GT40 both have their plus and minus.

ROWDYRENAULT

1,270 posts

215 months

Monday 7th December 2009
quotequote all
To Rene's question: "which is nicer a GT40 or an Ultima"? Rene I also took a long hard look at the Super performance GT40 before buying and building my GTR. My answer to you is this; if you build a GT4O you will have to justifie every part of the build to copy what was done in 1967. Tires, engines, gearbox, gauges steering wheel, seats, ect, ect, ect. Why build a GT40 and not immulate what they did then? Great car, great history, but in my mind a GT40 builder is trying to capture the past. Nothing wrong with that, I have 2 friends that own replic GT40s they love them. The GTR is on its own, what engine, what gearbox how you finish the interior, its all up to the builder. Some guys go big. Jeff Shwartz, Gasser in Austria, lots of horses lots of speed. World class speed go kick F cars and P car rear ends speed. Other guys go a bit milder thier cars are very fast, they enjoy them, they track the cars perhaps, but they kept it a bit more simple. There is no wrong answer on the Ultima products just lots of correct ones. Hope that helps. Lee

ezakimak

1,871 posts

237 months

Monday 7th December 2009
quotequote all

GTRene

Original Poster:

16,583 posts

225 months

Monday 7th December 2009
quotequote all
ezakimak said:
wow thats a very special GT40.

most GT40 ofcorse are a replica of the old GT40 but bettered on some points for modern times...

lets say a CAV GT40 or a SPF GT40 with 500hp ready from the factory

and a Ultima GTR 500hp ready from the factory which one is better to live with on road/track

I love the GT40 classic looks and history, but I also love the Ultima GTR for its looks and also the Ultima have a lot old style race car in itself so almost comparable with the GT40 the Ultima has its own name ofcorse and is brutal.

the doors (GTR) are a bit better to live with because they go up, instead of the to much space using GT40 doors

both are unpractical to biggrin

how are they in the wet, are they leaking ? or moving up at very high speeds?

a GT40 you can get on a old chassis number say 1965 thats also a good thing because les money to pay to the government...

so yes both have their plus and -

and which one goes better over speed-bumps, I hate those things.

maurits555

43 posts

186 months

Wednesday 9th December 2009
quotequote all
Here's my views on the engine bit.
I agree that for the not so profesional builder, the factory support on the chevy engine is very important.
But a not chevy is less difficult than it may appear, and there are advantages.
Even with the current low dollar, american V8's are not cheap anymore...
The motormanagment challenge of German engines works in 2 ways: Because these engines are duficult to use outside of their own chassis (the anti-theft bit),
they are no good to anybody on the open market, and therfore very cheap.
As for the gearbox adapter and shift mechanism, these are no as hard or expensive to have custom fabricated by companies like ulteamcars or kronnenburg as it may seem.
The advantage of this is that you can fully choose your (engine/box/MM) package in any power range, and therfore an of-the-chelf adaptorkit is not a commercially viable option. ( if they were, i'd be selling them allready..)
My point is that, you can order a fully working german engine package for ultima allready. The only thing you would have to do yourself is to change the engine support.
If people are interested I could write a bit more about this on my website...
By the way, and proving my point, my car was weighed and it came in as under 900kilo's with half a tank of gas....less than I would have thought!

spatz

1,783 posts

187 months

Wednesday 9th December 2009
quotequote all
very good under 900kg, mine is 950kg, but I have added double skin and some other comfy bits, like insulation, SATNAV and I am pretty sure that your rims are at least 20kg less than mine.

andygtt

8,345 posts

265 months

Wednesday 9th December 2009
quotequote all
I do love your engine, but I think its your choice of gearbox/clutch etc and wheels that have saved you the 100kgs over a normal canam.... the std Ultima wheels/tyres/brakes are very heavy and its easy to save a lot of weight here especially when you reduce the tyre sizes as dramatically as you have done.

Must say though I really like the route you took, bet it handles very nicelly indeed with all that weight saving in exactly the right places.... best you get out there and sort that air box so you can get it reving to 8500rpm!

maurits555

43 posts

186 months

Wednesday 9th December 2009
quotequote all
Thanks Andy,
Your project sounds great as well but you website, not so much...!
I'd love to see some pictures.

As for the car we're still working on it but have very litlle time, but it will be running properly soon.

Spatz, I agree the wheight difference will be mostly in the wheels, because I don't thing there's much weight difference between the V10 and LS7. But I think it will be a lot heavier to use an old steel V8.

UltimaCH

3,155 posts

190 months

Wednesday 9th December 2009
quotequote all
maurits555 said:
Thanks Andy,
Your project sounds great as well but you website, not so much...!
I'd love to see some pictures.

As for the car we're still working on it but have very litlle time, but it will be running properly soon.

Spatz, I agree the weight difference will be mostly in the wheels, because I don't thing there's much weight difference between the V10 and LS7. But I think it will be a lot heavier to use an old steel V8.
Agree that Andy's link to an dead AOL is frustrating. Some pictures please!!!!! Don't know the weight of the V10, but I recall reading that the LS7 is around 200kg, so I imagine also that the difference in weight is probably small despite 2 cylinders more.

spatz

1,783 posts

187 months

Wednesday 9th December 2009
quotequote all
oh no the ls7 is only 180 kg, the porsche g50 box and the flywheel are heavy, and i am not sure if maurits is using the hubs and ap discs and calipers as they are not lightweight either

maurits555

43 posts

186 months

Thursday 10th December 2009
quotequote all
OK then, the LS7 is very light, lighter than the V10 in fact, cause that's indeed about 200kg (but I haven't weighted it)

But I think the G50 is heavier than the audi box, but it should only be a couple of kg's . We spend quite some time turning down the flywheel, but it's still about 5kg (i think) We didn't dare go any further..
No, I don't use the Ap racing brakes, mine are custon build. (and definitly lighter)

And Spatz, how is the hardtop coming along? ( again pictures.. smile.???)

GTRene

Original Poster:

16,583 posts

225 months

Thursday 10th December 2009
quotequote all
are there also Ultima's out there with a AMG engine?

spatz

1,783 posts

187 months

Thursday 10th December 2009
quotequote all
bulkhead model is almost finished do not have any time at the moment so it will be a while before there are pics sorry

cymtriks

4,560 posts

246 months

Thursday 10th December 2009
quotequote all
How do you fit another two cylinders in the Ultima engine bay?

IIRC the bay is 34 inches from the hub/axle centres to the bulkhead.

so say 9 inches to the back of the block, 24 inches for an SBC and three inches clearance to the bulkhead (I'm guess-timating!)

By sweeping the axles back you could gain an extra inch or two and the same again by cutting the clearance at the bulkhead but at most this gains 3-4 inches.

That doesn't seem enough for an extra two cylinders so is the V12 very short or am I missing something?

andygtt

8,345 posts

265 months

Thursday 10th December 2009
quotequote all
the chevy is not a short engine, my BMW V12 is only about half an inch longer overall.... the Merc V12 engines on the other hand a very long and wouldnt fit without serious modifications IMO.

BTW my BMW V12 is around 170kgs without the ex manifolds... and the audi boxs are as much as 30kgs lighter than some of the 6 speed G50 units.... shame Im using still using the porsche box lol