4 pot Ultima engine?

[UltimaCH]

The LS engines could also be going down this road soon and we'll have 4 pot Ultimas http://pistonheads.com/news/default.asp?storyId=23...

[GTRCLIVE]

I don't see why you couldn't use a Nice Evo Engine or a High boosted Cossy of some sort. Mated to a Audi Box that might be fun..... But suspect the cost not to dissimilar to a LS3 G50/03 combo anyway... Unless you have an engine allready...

I'd love to see a 4 rotor Mazda engine with twin turbos.... Now that's an engine that would make for a great sound...

[RXHeven]

Here you go. He's since switched to a single turbo making over 1600 hp.
http://www.youtube.com/watch?v=35Q9FhURrRs

Now imagine what this sounds like?
http://www.rx7club.com/showthread.php?t=945021

[Moogle]

Aren't the automatic Camaro's with the 'L99' V8 engines already active fuel management/displacement on demand and can switch to four cylinders?

I assume where an LS3 can be made to fit, so can the L99 but I'm not sure if it can be worked out with a manual transmission?

[Gulf LS3]

a subaru flat 4 with a 2.5 bottom end (400bhp) and you could also use the gearbox with a little work. It will be a little lighter but will it be any better on juice?

I think a nice Audi V6 diesel with 2 big turbos would be fun 500-600 ftlbs, you could also use the Audi transaxle.

[Storer]

Is everyone mad.

These car's are about big V8 or V12 engines. Yes, they can be high revving or, if you must, turbo-ed/supercharged but not 4 cylinder or wk*rs.

The least that would sound acceptable would be a flat six (with turbos).

If you want to fit a 4 cyl or rotary please buy something else to fit it into.

Paul

[Gulf LS3]

with fuel at £6.50 a gallon a lot of us have to look at alternative powerplants but yes you are right better in an alternative package.

I love LS engines as you all know but i think its only a matter of time before alternatives have to be used for a number of reasons?

[Moogle]

Storer said:

Is everyone mad.

These car's are about big V8 or V12 engines. Yes, they can be high revving or, if you must, turbo-ed/supercharged but not 4 cylinder or wk*rs.

The least that would sound acceptable would be a flat six (with turbos).

If you want to fit a 4 cyl or rotary please buy something else to fit it into.

Paul

You do realise the engine in the OP is a Mercedes V8 which can switch to four cylinders.... much like the GM V8 'L99' engine I mentioned, I am wondering why everyone keeps talking about 4 cylinder engines and rotary engines....

Personally my choice would either be, GM V8, Audi V8, Audi V10 or for something completely different VW/Audi W12.

[crafty]

RXHeven said:

Here you go. He's since switched to a single turbo making over 1600 hp.
http://www.youtube.com/watch?v=35Q9FhURrRs

Now imagine what this sounds like?
http://www.rx7club.com/showthread.php?t=945021

mmm.... ND$67,000 = US$57,800... how about a group buy.

http://www.pulseperformance.co.nz/index.php?page=p...

and a vid

http://www.youtube.com/watch?v=HWTULnclu6Y&fea...

[ezakimak]

anyone know anything about the M117 or M119 engine as used in the Sauber C8 and C9 of the late 80s and also the SL500 ?

[chuntington101]

crafty said:

mmm.... ND$67,000 = US$57,800... how about a group buy.

http://www.pulseperformance.co.nz/index.php?page=p...

and a vid

http://www.youtube.com/watch?v=HWTULnclu6Y&fea...

Crafty, if you are going to build a quad rotor you may as well stick a turbo on there to!

[Rusti Evo]

As a couple of you know I looked seriously at going rotary with my last car - however with the sensible hat on it just was not feasible.

The heat management issues with a 4 rotor twin turbo are vast. 2 huge intercoolers and 2 huge oil coolers plus all the radiant heat. The big oil coolers are needed because of the "oddness" of the rotary about a third of the engine cooling is done through the oil system. It was our belief that under the rear clip would be a hell.

A 3 rotor/big single seemed a better compromise and the prices from Carl Hayward were very reasonable. Amazingly he was prepared to offer me a 24 month warranty on a track day engine - now there is a guy you would have confidence with!!! All bespoke components, nothing Mazda.

There are also huge issues with silencing the N/A 4 rotor - nobody I spoke to had much confidence about getting down to trackday sound levels. Apparently the problem is a bit like a two stroke due the the exhaust ports. However, the joy of shrieking round Goodwood in that is almost unbearably attractive! Never say never...........

[k wright]

Hmmm,

You are driving a car that gets 22 mpg VS one that gets 17 mpg over a distance of 5 thousand miles yearly. You do the math. We'll all be out blasting around in our V8 motored Ultimas.

[V8Dom]

Gulf LS3 said:

I think a nice Audi V6 diesel with 2 big turbos would be fun 500-600 ftlbs, you could also use the Audi transaxle.

hehe And you thought I was all mad when I suggested Diesel 2 years ago..

[hedgefinder]

k wright said:

Hmmm,

You are driving a car that gets 22 mpg VS one that gets 17 mpg over a distance of 5 thousand miles yearly. You do the math. We'll all be out blasting around in our V8 motored Ultimas.

I completely agree... this thread makes no real sense. These cars arent about economy and very rarely do the milage that makes economy an issue anyway.
If you want a cheap toy then people should really buy a petrol engined r/c car.

[JoelRP]

V8 from the atom 500?

[macgtech]

Storer said:

Is everyone mad.

These car's are about big V8 or V12 engines. Yes, they can be high revving or, if you must, turbo-ed/supercharged but not 4 cylinder or wk*rs.

The least that would sound acceptable would be a flat six (with turbos).

If you want to fit a 4 cyl or rotary please buy something else to fit it into.

Paul

+1

[Gulf LS3]

Its a self build car you can do what you want with it thats the beauty of ownership!!! Whether thats right or wrong is a different matter.

If someone wants to fit a pair of turbo charged bike engines then fair play, i think for some people its an engineering thing and doing whats already been done is not much fun for them eh Dave?

[738 driver]

Ambition is always a major factor..... to carefully combine with logic can sometimes be the challenging bit, especially when talking of petrol-head boys toys.
Keeping ones dreams realistic and having slightly improved results is usually a great combination for most of us.. however, harnessing those deeper sleepers can be a fair hurdle.

Still love big cams n carbs !!

[Storer]

I suppose it is the fact that the Ultima is a top handling car with a large (but some say not large enough) engine bay that can take many different engine/trans combinations if that is what you want to do.

My only engine/trans swap away from a large V8/Porsche trans would be a 3 litre Cosworth F1 engine and Hewland trans from the late 70s early 80s.

Now that would make an awesome track day car.

Paul