Is that an Elise ?

Sanjøy · Post by **Sanjøy** » Mon Aug 21, 2006 11:11 am

http://www.holeshotracing.co.uk/tuning/index.asp

thinfourth · Post by **thinfourth** » Mon Aug 21, 2006 11:14 am

Now that will be entertaining

probably 300bhp minimum maybe more

Andy G · Post by **Andy G** » Mon Aug 21, 2006 11:16 am

looks interesting

Scotty C · Post by **Scotty C** » Mon Aug 21, 2006 12:03 pm

Is that not Geary's (eliseparts) car?

He did a conversion 3-4 years back.

Scotty

ninja · Post by **ninja** » Mon Aug 21, 2006 12:08 pm

what the hell did they do????

ninja

Post by **Shug** » Mon Aug 21, 2006 12:14 pm

Turbo Hedgeabuser engine. Don't think it's the same install as Geary...

Looks interesting, but I'll bet it will be a pig to drive. Tiny grabby clutch, no torque until the turbo is spinning and I'd dread to think what the power delivery is like...

Think the Elise is just a touch too heavy for the bike engine installs to work - you get away with them in Cateringvans, but you'd have to take a bit of weight out of an Elise to make them sensible...

All IMHO, of course.

tuscan_thunder · Post by **tuscan_thunder** » Mon Aug 21, 2006 12:56 pm

Shug,

In part I agree with you, but, with a bit of development I think the 'bike engine idea can work.

A bike engine and box loses a fair bit of weight over a K even with transfer box etc for reverse gear (if you want one - ie it's not solely a track car).

A 1500cc Hayabusa has a reasonable amount of torque for a bike engine, and with a set of less peaky cams (obv at the expense of a bit of power) torque would be about the same, if not slightly higher, than a stock K, albeit at higher revs.

A turbo, running low boost pressure, could overcome much of the low rev torque problems, leaving the bike engine to do its work at high revs.

A 1500cc Hayabusa with no turbo, can put out about 230bhp so a low pressure turbo could take this to, say, 280bhp with a reasonable torque curve.

A helluva lot of work to do it though. Be better off with a Type-R or the usual suspects I reckon.

Post by **Shug** » Mon Aug 21, 2006 1:19 pm

tuscan_thunder wrote:Shug,

In part I agree with you, but, with a bit of development I think the 'bike engine idea can work.

A bike engine and box loses a fair bit of weight over a K even with transfer box etc for reverse gear (if you want one - ie it's not solely a track car).

A 1500cc Hayabusa has a reasonable amount of torque for a bike engine, and with a set of less peaky cams (obv at the expense of a bit of power) torque would be about the same, if not slightly higher, than a stock K, albeit at higher revs.

A turbo, running low boost pressure, could overcome much of the low rev torque problems, leaving the bike engine to do its work at high revs.

A 1500cc Hayabusa with no turbo, can put out about 230bhp so a low pressure turbo could take this to, say, 280bhp with a reasonable torque curve.

A helluva lot of work to do it though. Be better off with a Type-R or the usual suspects I reckon.

All true... I just don't think the combo of a 1500cc engine/turbo and grabby wee clutch (which you'll have to slip, as the torque will, as you say, be delivered at higher rpm) is ideally suited for owt but track use. Even with a low pressure turbo swelling it, you've still gotta get the turbo to spin. In a Cat, different story - 400odd kilo Cat with a bike install is mental, but I dare say you couldn't really get an Elise under 600kg with the bike install....

To go the route you suggest would cost a lot of cash for something with less HP than a supercharged Honda or a big-turbo Audi. Will obviously be quicker thanks to weight, but I can't see it making financial sense, thanks to the fact that a good % of Elise owners are only interested in bhp for pub talk. Sad, but true....

Plus - 1500cc + turbo isn't gonna last all that long...

Still, it's an option and I do like lots of options

Wish them good luck with it

tuscan_thunder · Post by **tuscan_thunder** » Mon Aug 21, 2006 1:25 pm

Agreed!

(clutch wouldn't last 2 minutes, and, as you say, the engine would be, how shall we say, stressed)

As a track car, it'd only work with a small capacity engine and no turbo (it'd never move!!) - under nearly every set of regs a turbo'd 1500cc'd be in with Type-Rs etc (ie, 1500cc plus the turbo equivalence rules would make stick it into over 2000cc classes)

Good effort to try it though.

Rich H · Post by **Rich H** » Mon Aug 21, 2006 9:46 pm

I have at least 40 bhp more thanks to the VVC manifold and my Piper 270 cams and when I fit my alloy tax disk holder that will save me more weight so it'll be at least 200 bhp/ton. All I need to do now is fit some back seats so I can fold them down.....

tut · Post by **tut** » Thu Aug 24, 2006 7:38 pm

Similar, but not Geary's.

tut

Bada Bing! · Post by **Bada Bing!** » Sat Aug 26, 2006 4:32 pm

Seems like too much fuss to me. Even a 1000cc MotoGP bike only kicks out 240bhp. A supercharged 111R lump like the one in the Exige S will do just about that without much trouble or expense, and it might last more than 10 miles!

tut · Post by **tut** » Sat Aug 26, 2006 8:21 pm

The tubo'd Hayabusa engine has proved to be very reliable, a lot around now, and with its light weight and 300hp, it makes for a formidable Elise.

Not sure if Gearys was ever driven in anger, but never saw it up for sale.

tut

Bada Bing! · Post by **Bada Bing!** » Sat Aug 26, 2006 9:04 pm

Just seems like a lot of work I suppose. Not sure an Elise would be particularly driveable with more than say, a progressive 220bhp.

tut · Post by **tut** » Sat Aug 26, 2006 11:24 pm

Gaz

The Audi conversion puts out 330hp, the S/C Honda around 310, and both are smooth as silk on the road. Slip the gears into 6th at 30 and they will pull away no problem.

Or are you only questioning the performance of a bike engined Elise?

tut