Dax rush with cossie engine????

[ultimaandy]

I am considering a cossie powered Dax rush (more than considering actually) but have my reservations about the intercooler.

My engine needs an RS500 alloy intercooler and I don't think the standard 4x4 one will cope even with a ram air effect. Lowering the power is not a real option! (I want over 500bhp per ton)

Has anyone built one of these cars and have any sollutions/comments?

Thanks
Andy

[ultimaandy]

Its going to have no screen, no interior, alloy panels etc and only marginaly less Bhp/ton than my Ultima.

But a lot cheaper!

also considering putting my 6 speed box from a lotus carlton in it?
Do you think it would pull the redline in 6th ie over 250mph?
Maybe not but it will be fun trying!

Oh and going to use it to comute 30miles to work!

[ultimaandy]

The Ultima is..... well..... the Ultimate.

However I only get about 13mpg when I take it work and I don't really want to put too many miles on it.

Unfortunatelly my 13sec cossie now feels as slow as F**K and is expensive to insure so I want something new.

I have had the cossie for 8yrs with 25psi so know the lag problem and I used to commute on a Bike so comfort isn't an issue. I really just want something to rival the Ultima in performance even if I have to wrestle it round corners.

I have been lead to believe the Dax Rush can handle this kind of power (a real 360Bhp) even in the 2wd formatt and this is the route I now fancy taking.

Am I asking too much?

[ultimaandy]

Hope to get below 600kgs.....
Thats the car before you ask!

[ultimaandy]

I'm glad I started this thread.

Better to find out now than after the SVA!

Is there anything out there that can handle it or am I relagated to keeping the cossie and being run rings round by you guys.

How about the RS200 replica with the engine in the back?

[ultimaandy]

Dry sump is a good point.

I expect my cossie engine will need some sump mods to cope with a better handling chasis.

My ultima has a serious baffled sump and an accusump.

My dream of sailing past my Ultima in my 10k track toy is drifting away!

[ultimaandy]

My cossie engined Dax seems to have increased its rev range by 4000rpm and lost 250ft/lbs and 160bhp!

Still confused how the Dax handles a turbo busa screamer engine but not a cossie engine of same power....

can only think its the torque thats the problem.

Thanks for the advice, I now have some serious thinking to do, options are:

-Build the Dax cosworth anyway (and maybe regret it)
-Find something else more suitable
-keep the cossie as my track tool (its very high spec)
-buy a bike engined car
-Build another Ultima
-All of the above, and have my wife leave me?

[ultimaandy]

quote:
As it's all so subjective, the best bit of advise I can give you if you're still undecided is to get down to some trackdays and cadge a lift in the various cars and see which suits you best. When mine is finally running again I'll gladly take you out for a run in it. Get one of the BEC chaps to take you for a spin and the V8 guys and you'll get an idea of what's what.

Actually thats a bloody good idea, I think thats what I will do.

Now I've just got to decide on a date, when there will be suitable machinery there!