How would you build this Ultima?

[mohrt]

I thought this would be an interesting approach to the question... lets see how the recommendations compare and differ amongst us.

If you were to start with a blank slate, a stock chassis, how would you go about building an Ultima (Can-Am or GTR) with the following specs:

The specs (in order of preference):

• roadable, reliable vehicle (drivable to venue, 1000+ miles without worry)
• 1/4 mile time in the 10s (lower the better)
• 22+ mpg on the highway
• reasonable cost (as to a typical build, maybe 50-80k US?)
• 200+ mph top speed capable

This is all assuming the driver knows what he's doing. So, what would you go with to achive the above? What do you think is the optimal combination of engine/gearing/cost to get the job done? Would you go turbo, supercharge or neither? What is the minimum bhp requirement with a well tuned car? Is all this achievable under one hood?

[tblackey]

* roadable, reliable vehicle (drivable to venue, 1000+ miles without worry)
* 1/4 mile time in the 10s (lower the better)
* 22+ mpg on the highway
* reasonable cost (as to a typical build, maybe 50-80k US?)
* 200+ mph top speed capable

Not possible. Not unless you want to cut a lot of corners. For a nice car in the US, start at about $85K as a minimum and go up from there.

For that kind of driveablity and speed:
LS7 with GT2 gearbox, with maybe a cam.
The rest is pretty standard stuff.

[crafty]

• roadable, reliable vehicle (drivable to venue, 1000+ miles without worry)

EFI engine, I suggest something in the LS range... price will determine which one and your 1/4 mile times.

• 1/4 mile time in the 10s (lower the better)

550HP?? - Jeff Schwartz's 500hp LS6 car did 10.38 with a 100 shot.

• 22+ mpg on the highway

LS engine.

• reasonable cost (as to a typical build, maybe 50-80k US?)

for USD50-80k you will have great fuel economy but crap 1/4 mile times as you will need to forget about an engine.... or .... buy a second hand car - this one has all that you want and is new... www.ultimagtr.ca ... for sale here under "BigAl1's" > http://www.markkoch.net/ultima/forSale.asp

• 200+ mph top speed capable

7000rpm and pretty much any transaxle. (reliable 7K will need to be a built engine)

Edited by crafty on Tuesday 5th June 09:06