Uphill Racers

Go Back   Uphill Racers > Sprint > British Sprint Championship
Register FAQ Members List Calendar Downloads Mark Forums Read

Reply
 
Thread Tools Display Modes
  #11  
Old 22-06-14, 22:29
dan mason dan mason is online now
Senior Member
 
Join Date: Nov 2013
Location: milnthorpe cumbria
Posts: 1,354
dan mason will become famous soon enough
I understand. There will be plenty of leg room in my car but I have the narrow seat which is tight as hell.even for me at 12st. Larger seats are readily available
Reply With Quote
  #12  
Old 23-06-14, 06:58
Lolat492 Lolat492 is offline
Senior Member
 
Join Date: Apr 2010
Posts: 2,480
Lolat492 will become famous soon enough Lolat492 will become famous soon enough
When I moved to Libre on the hills the Radical was high on the list.
It was the lack of a good reverse that swayed me away.

The car I have was a roller and I fitted a road spec engine and box.

This is very convenient but is not the best solution. The gearbox is the most irritating thing on the car, slow and cumbersome.

My 2 pence worth is to buy something already done and the most modern you can.
Lots to choose from on racecarsdirect

With your '£50K' budget, you have a massive choice.

Converting a racing car to sprints may involve a few suspension changes, but I don't do/like sprints, so could be wrong.

It is far easier to get an open car than a closed car, but I do wish I had found a closed car instead of my open libre.

All things considered, I think a high spec Radical would be very very good and re-saleable back into the circuits as long as it is comfortable!

There is a Prosport (pre Ultima) sprint car with V8 and everything all set=up for sprinting for £23K on that web site.....
Reply With Quote
  #13  
Old 23-06-14, 07:32
dennis.doyle's Avatar
dennis.doyle dennis.doyle is offline
tyrekicker
 
Join Date: Jan 2007
Location: I'd rather not say
Posts: 1,122
dennis.doyle is on a distinguished road
Bev Fawkes used to run an Ultima Mk3 (looked a bit like a 917) with big-ish V8 quite successfully in sprints. He even ran it up Scam at least once. So they have some pedigree.

Mind you, that was 25 years ago & things do move on.
__________________
Is there ever enough run-off?
Reply With Quote
  #14  
Old 23-06-14, 09:15
grahamb's Avatar
grahamb grahamb is offline
#UNLEARN
 
Join Date: Mar 2008
Location: Fordshire
Posts: 4,021
grahamb will become famous soon enough grahamb will become famous soon enough
Z-Cars Mini with a busa turbo?
Or how about a hotrod 206 or something else space framed?

At least with a roof you wont get wet when it rains
Reply With Quote
  #15  
Old 23-06-14, 09:53
andylaurence's Avatar
andylaurence andylaurence is offline
Senior Member
 
Join Date: May 2010
Location: Bristol
Posts: 1,536
andylaurence will become famous soon enough
Are you planning to enter the BSC? If not, you won't find much competition in the unlimited Sports Libre class. The only competitive sprinters in that class follow the BSC, I think. Assuming you are planning to do the BSC (this is the BSC forum afterall), then how about a Ligier or a Norma instead?
Reply With Quote
  #16  
Old 23-06-14, 10:19
RobertT RobertT is offline
Pasty Power
 
Join Date: Apr 2008
Location: Cheshire
Posts: 852
RobertT will become famous soon enough
Yep - thinking of BSC. Quite like the 'fit and forget' nature of a big V8 so thats what draws me to something like an Ultima. Are also looking at opportunites for 4/5pot audi car engined turbo. What puts me off bike engined stuff is maintenance - whats this like? maybe I am being unfair.
Reply With Quote
  #17  
Old 23-06-14, 10:32
andylaurence's Avatar
andylaurence andylaurence is offline
Senior Member
 
Join Date: May 2010
Location: Bristol
Posts: 1,536
andylaurence will become famous soon enough
I'm running a standard production bike engine. I buzz the limiter on every run and have done so since 2010. I've replaced a few oil filters and the oil. Engine seems fine and if it goes pop, I can pick up another for pretty much nothing. A 1500 'Busa might be a little more fragile and I would guess a crazy turbo one might chew up output shafts and gearboxes a little more regularly. I can think of no reason (other than a need for more than 500bhp) why you'd choose something production-based over a bike engine.
Reply With Quote
  #18  
Old 23-06-14, 10:39
Steve Wilkinson's Avatar
Steve Wilkinson Steve Wilkinson is offline
Senior Member
 
Join Date: Jan 2007
Location: Southport
Posts: 4,367
Steve Wilkinson will become famous soon enough
Quote:
Originally Posted by RobertT View Post
Are also looking at opportunites for 4/5pot audi car engined turbo.
Quote:
Originally Posted by andylaurence View Post
I can think of no reason (other than a need for more than 500bhp) why you'd choose something production-based over a bike engine.
A 'Busa will probably weigh as much as a "4/5 pot Audi" engine but with the Audi option you also have to cart a gearbox round with you!

The Radicals in the BSC regularly beat Jim Belt's Juno (sorry Jim!) so really to get something that could beat the Radicals you would need a lot of grunt and for that you would probably need something like a Cosworth DFR or equivalent.

__________________
He was stopped stationary - James Hunt
Reply With Quote
  #19  
Old 23-06-14, 10:47
andylaurence's Avatar
andylaurence andylaurence is offline
Senior Member
 
Join Date: May 2010
Location: Bristol
Posts: 1,536
andylaurence will become famous soon enough
A 'Busa doesn't weigh as much as an Audi 4/5 pot. The 2 litre TFSI is 152kg, according to my records, which probably isn't too dissimilar to the 1.8T. The 2.5L lump is 183kg. The Hayabusa is about 90kg with the gearbox, although you must remember to add in the weight of the chain, differential and structure to hold it and the suspension when comparing like with like.

I suspect Jim's Juno is just a little too heavy to make the grade. The SR3 Turbo is most likely under 600kg and the PR6 is a shade over 500kg. An ADR with a blown 'Busa might do OK...
Reply With Quote
  #20  
Old 23-06-14, 11:51
david.seaton's Avatar
david.seaton david.seaton is offline
Senior Member
 
Join Date: Mar 2011
Location: scottish orders
Posts: 510
david.seaton will become famous soon enough david.seaton will become famous soon enough
I have a BMW M5 S62 engine.
480 bhp and over 400 lbs/ft of torque.
Standard apart from Vanos Elimination, Dry Sump, Electric Water pumps, Small flywheel, different intake and exhaust and a standalone KMS management system.
These mods and remapping got the power up to where it is.
Standard engine weighs 239 kgs with all the bits on it.
By the time we threw away the sump with its' built in oil pumps, huge water pump, vanos gear, etc etc, well over 30 kgs went in the bin.
It revs to 7500, and has power and torque everywhere.
Should be fairly bulletproof and seems to nip along OK.
If I blow it to pieces, a bit over £2k will get a good engine from a breaker, and then we just swap over the modified bits.
The car with a 2.5 Hart and a normal driver (according to Pilbeams' figures) weighed 570 kgs.
I have no idea what the Hart engine weighs, and have never weighed the car, but I am sure it would be easy to stab a guess.
__________________
Speakman Trophy - Doune 2011 - Best prepared car
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 09:21.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright© 2007-2017 www.uphillracers.com