I am thinking of having a totally flat bottomed locost (taking the floor right to th front) the only thing is will the engine get to hot im runing a tuned xflow 1700
(130 bhp) it will have a oil cooler and i will have exhorts raped with exhort rap.
i will all so have plenty of venting in th bonnet.
has eney one else done this and did they have eney problems?

ps. there will be a removable plate for oil changes

This has been discussed before quite thoroughly!
Do a search. Check in either bodywork or engines would be a good start.

If you totaly panel the bottom where will the heated air escape that has cooled the rad?

Terry

I'm planning on doing something similar but I'm going to get it on the road first and see what the situation is with regard to overheating. There was a discussion a while back about this...

http://forum.locostbuilders.co.uk/xmb/viewthread.php?tid=3349

isnt it hard to get the sump not to go below the bottom rails?

If the full floor is to help aerodynamics, what about the rest of the brick shape?

atb

steve

[Edited on 18/9/03 by stephen_gusterson]

straight to the point eh Steve!
Not all our cars are more areodynamic in reverse!

Flat bottom just looks prety when its upside down in a field.

or when its on the ramps at MOT time.Col

that is the front! I just made a mistake in laying out the cockpit of my FWD rear engined, rear steered car


its pretty accepted and described in the last day or by another lister that a locost has 'brick' like aerodynamics.

Its not me being a bitch


being bigger and taller, mine wont be any better.

atb

steve

[Edited on 18/9/03 by stephen_gusterson]

too ture, they are not the most aerodynamic cars, mine morso than most on here as it actually has a windscreen!, pretty rare on these pages i believe.

rear sterering and all that, a mate of mine at school had his dad build him a "buggy" it was 2 frint mini sub frames welded together with a 1300 gt engine, no bodywork and a bench seat to rit on. It had 4 wheeel steering, the rear steering wheel was held in the wheels straight ahead position by 2 bungy ropes!

The passenger was free to unleash the rear steering at any point to add excitement and poteintial death value to the ride!

All good fun but you wouldnt catch me on it now i knwo how dangerous they it could have been.

Col

My theory is that a flat bottom would go someway to offset the problem that otherwise the car is going to be a brick.

If I ever do get around to it then mine won't be completely flat anyway, I'm thinking about fitting a sump gaurd because I'm going to be running pretty low ground clearance (thinking about 3 to 3.5 inches at front with 0.5 more at rear which is roughly what I had on a previous car without too many problems) so I'll incorporate that with a flat bottom. So in the end I'll have a bulge on my bottom!

I'm going to try my best to mitigate the incredible aerodynamics as much as possible (within reason) with the idea that it could make a noticeable difference on accelleration from 60mph onwards which would be big gains on a track. Might also aid mpg for m-way driving too!

I know bu%%er all about aero stuff, but I recon that a full front, covering the wheels, and making less of an 'air dam' entrance to the rad would help no end.

but it wouldnt look like a seven.....

colmaccoll :

Thrust ssc, the fastest car in the world.....is rear steered.

Anyone near coventry should visit the museum of british road transport. Its on display there and admission is FREEEEEEE


atb

steve

Fcuk that i have seen the way a fork truck turns at about 15mph let alone SSC speed,

Bit of wobble on that and you would be in a right mess, brow trousers time!

col

On the topic of rear wheel steering. to build up the browie points I was in Euro Disney with the family. There's a stunt show in MGM (its quite good actually) - theres a car chase and the car goes round the back of a prop and comes out full speed in reverse, does some great manovers skidding about all over the place, at leaves you thinking that is one good driver to be able to do that in reverse. A little later they show you the car and its a standard car with the body on back to front. the driver has a visor on the back of his crash helmet with a false face in it, a couple of holes in the other side to see out off. - The rest of Euro disney was pretty crap unless you have small kids (and its too bloody French)

have you got

'its a small world' out of your head yet.



atb

steve

But I believe the "Thrust SSC" also had aluminium tyres? Not so good for our perfect road surfaces... eh?

steve, you bugger - I did but it's back in there now.

quote:

---

Originally posted by stephen_gusterson
have you got

'its a small world' out of your head yet.



atb

steve

---

Stephen hit the link and enjoy

http://www.niehs.nih.gov/kids/lyrics/smworld.htm

thats the one!

I liked disneyland, cept most of its in french.

the one where the nutty robot pilot flys thro asteroids and stuff is unintelligable.

They have the same ride in the california one.

Basically hes saying he hasnt done this before and its his first trip, and hopes it works out ok.


Fondamentalement hes indiquant il hasnt fait ceci avant qu'et sa sa bande de firt, et espoirs qu'elle établit bien.


just dont cut it!


atb

steve


im sick cos I actually liked its a small world.....pirates of the carribean looks like a rought nite out, or possibly a stop over at a kit show




[Edited on 19/9/03 by stephen_gusterson]

The air that hurtles in through the radiator has to get ot somewhere. If you seal of the bottom of the engine bay, you will need to provide another exit or it will overheat.

Bigfoot.

quote:

---

Originally posted by Bigfoot
The air that hurtles in through the radiator has to get ot somewhere. If you seal of the bottom of the engine bay, you will need to provide another exit or it will overheat.

---

I have thought of this but would it pass the m.o.t. ?

Can't you vent the hot rad air out through a bonnet vent a-la Westfield and rather a lot of fast road and racing cars? (see following piccies for clarification)








[Edited on 21/9/03 by Browser]

yes all very cleaver but wil it pass the sva?
allso my be tricky to duct to the windscreen.
(I think ducted rads are mainley for aerodynamic purposes)?

now theres pretty, wouldnt mind somthing like that myself.....

You will find that you will need to get the air out from under the bonnet. The transmission tunnel gets hot even with no floor under the engine bay. And by the way your toes will be plenty warm enough! Under bonnet temperature is an issue with se7ens. The more ways for that hot air to escape, the better.