Andy.F

If you were building a modified saloon car for circuit racing and drag racing, which body shell would you base it on ??

It would be getting a big V8 and custom drivetrain/suspension so it's just the best bodyshell I'm after........can't make up my mind

Ideally fairly small to keep the weight down but also a good (low ?) aerodynamic shape to allow a good top speed.

I was thinking Honda CRX or maybe 206 ?? or.........

barge

check the regulations of the class you are going in to.

does it have a minimum ormaximum wheels base ?

If not get thelongest wheel base you can, even if you have to strech it, it willgive more stability at speed.

what engine are you looking to use apart from a V8, how far back can you mount it, again the regulations may have limits.

Andy.F

Totally free from regs apart from MOT 350 alloy blocked chevy bored and stroked to 7 litres. Front engined but pulled back to the tunnel area. 4 speed race prepped auto box with 4wd. Did I mention the turbo's

barge

350ci taken to 7000 cc, you would be better off starting with a big block chevy lump, make sure its a 4 bolt main bearing block.

4 X 4 what system are you attaching to it ?

forget the turbos, use a super charger, no lag

Andy.F

BBC is too heavy Custom alloy small blocks can go out to 7300cc

Superchargers are also too heavy, two small turbo's will have negligible lag and be good for 800 bhp / 800 lf-ft (and they are cheap ) 4L80E GM box with 3500rpm 10" converter. Locked centre diff for drag racing, quick release front prop shaft which will be removed for circuit/road use...........but what bodyshell ?????

LG John

I'm not going to even ask what your up to...I'll just wait and see

Bagsy a shot in it though

LG John

Would a fiat coupe body shell fit? Very wedge like.

ustolemyname??stevieturbo

iTrader: (1)

Not all big cars are heavy. A 3 series isnt that heavy, and neither is an Impreza... Then you really could claim to have the fastest most powerful impreza in the world..Or maybe a Subaru Justy, its bound to be light.

barge

what you want is a car with a low CD number vauxhall calibra type shape, as you are V8'ing it you must be building a chassis for the car so the donor car weight is going to be different to the finished car weight, + grp etc replacment pannels save a good amount of weight.

who is actualy building the car ?

Are you Andy Frost of Red Victor1 racing fame ?

[Edited by barge - 9/22/2002 7:52:15 PM]

Andy.F

Andy Frost ? no not me

I will be building the car myself, I've considered the 3 series coupe as I think it is a nice shape, also considered a scoob but not too many 2 door bodyshells round too expensive to buy one to strip out.

I had considered a build from scratch using a Kevlar bodyshell but the problem is with SVA testing it. I would need to build it to pass SVA then rebuild it for racing If I base it on a production shell I can use the log book and just MOT it.

Where would I find listings of drag coefficients ?

IanW

The Calibra has the lowest drag co-efficent of any production car IIRC of 0.26.

If you do decide to go with a Calibra, I might be able to help you out with a rolling chassis (which already has a 4x4 system in it)

Drop me a mail if you are interested.

Ian

barge

Ian,

the chassis will need to be scratch made, calibra engine is left to right, the chevy V8 is 'kin huge front to back & is going to be set a long way back in to the shell, for weight balance.

Andy why not look at older cars which are cheaper to purchase as are you are going to need to gut them to fit your gear in anyway.

what about a vauxhall viva\frenza\chevette Opel Manta, escort mk1 [which I have with a bbc in] mk2 excort, cortina mk1,2,or 3

or got semi moddern 80's cars or take a look at the skinner brothers fiat 126's they have V8's !!

Andy.F

Considered a Mk1 Escort I used to have a big wing Jeff Uren 3.0 V6 one of them years ago !! Plus a twin cam and RS1600 lovely stuff.
Barge, could I have seen your Mk 1 at York last year ???

Calibra is nice Ian but I would be binning most of the OEM bits so I don't think it would be very cost effective.

I think a Pug 205 is looking FAV at the moment, the Gti looks quite cute and can be had for pennies almost

Not sure about the drag though ??? I would like something that would run on to 200mph without leaving the ground !!!

Andy

Krade

I got a pug 205 gti you can buy for £500 G reg years mot would make a great donor car.

barge

there is a white pug called white lightening that runs at the pod a lot, Its got a V8, I thinks is a rover lump.

It was not my car you saw, I have never been there.

I have a robson race car [RRC] chassis & a bbc, auto box & 31 spline 1/2 shalfs in a narrowed 9in rear end mated to 10 inch rear wheels, I was going to go 15 X 15 but I was worried that would be too much for the axel when normal [yer right] street driving, its a fun car, I do like to play when I'm in it as well ;-)))

Andy.F

Tasty

What times have you run ?

Pavlo

how about a relia

no, sorry, sensible suggestions!

Rover 200 coupe
Peugeot 309
Honda prelude (old shape)
Calibra

I think you will be hard pressed to get 400hp out of a single TDXX, but they are quite cheap. Better bet would surely be a garret based blower. No good if you have a 800hp engine with 700hp of turbos.

7 Litres? Is it really necessay?

In fact, is any of this necessary?

Paul

gadge

Andy
you are a scary man
how about a rover827 fast back ( might be a bit on the hevy side but would take the motor no probs and is kinda > like.
oh did i say i have one in my garage tis only a v6 though but will be at the strip/track some time soon. Unless ?


all the best till then


garry

ustolemyname??stevieturbo

iTrader: (1)

Necessary??? Whats that got to do with it. 7 ltr sounds pretty cool to me, and even better with a couple of turbos on it. Why does it have to be a 2 door shell??
Surely something as small as a 205 would be dangerous at high speed. With that sort of power, and if you have the grip, I think it may have a tendancy to wheelie in something so small. bigger is better.
Maybe a Toyota Celica, because the only thing they are good for is removing all the original running gear, coz they are crap.
I know breakers that wont even take them in, they need cars that arent already scrap before they arrive. ( ealry GT4 specifically )

Andy.F

Of course it's necessary !!! I had a shot of my old V8 car last weekend and it reminded me what 'fast' was However, even that started to feel slow unless getting a big jag of nitrous
I logged it on the AP22 and it was running 120mph when my scoob was still under 100 and that was without gas.

A standard front entry TD05 will easily flow for 380bhp at 1.5 bar (ie mine) Looking at the compressor curves I'm sure it will flow for 400bhp at 1 bar, if not then a big 16g or 18g will suffice

The problem choosing a bodyshell is that you can't tell from looks which shell will create most lift at speed, take the TT for instance, looks nice aero package but they were recalled due to rear end lightness at speed making them unstable. Wonder if the Calibra is similar ?

Andy.F

Oh, did I say, I also want it to Corner

hoonunit

Ian W's right, in terms of aerodynamics the best car shape will be the Calibra but the Cd of 0.26 was marketing b*ll*cks - we've independently tested it in our wind tunnel (i work @ MIRA) and its a smidge under 0.29. Some of the recent BMWs & Audis beat the calibra (Audi A2 has a confirmed Cd of 0.26) and the recent Porkers do too but all of these are probably a bit pricey. Calibra's your best bet for the money - just watch what you do with the underside as that's where they got a lot of their drag savings.

Puff The Magic Wagon!

iTrader: (2)

VW Corrado shell

Lovely & stiff chasis & I'm sure you can get 'em dirt cheap now. Used to feel really planted @ 140 on the Autobhan & you get a dinky little pop-up spoiler ( ). Beautiful shape (timeless?) to it & presumably low cd.

I've not got one for sale - sorry

iain atkins

Andy

How about a 1980's 5-series BMW.

Cheers



Iain

LG John

200mph Super-doober-with-cherrys-on-top-Bagsy a shot!!!!!!

Considered a Capri shell, super cheap with loads of space up front for your engine. Looks well cool with fluffy dice too

Andy.F

Yea Corrado is quite a low shell too sucessfull in the national hot rods as well mmmmmm...
Bit square at the front but I suppose plenty space for intercoolers etc.

How much would you pick up a scooby shell for ? never seem to see them advertised

LG John

Why don't you just stick the engine in the front of your current car?

HELLOM8

The Carlton is a nice big car, I had a 3000 GSI, which was very stable flat out and the handling is great with surprising grip levels.
Cheers.
Ian.

Andy.F

Cos there's a few K's worth of car there ! I'd bin the eng, box, diffs, susp, brakes, dash, steering etc may keep the radio better to start from v cheap/light/low/smallish car with knack'd engine