Discussion
I think the reason the none of the other Tuscans have a flat floor is that when they ran as the challenge the regs were very tight and they were not allowed. Since then nobody has tried it.
My spare chassis though was to be used in GT's and does have mountings for a flat floor, but I dont know if it was ever fitted with one...
I'd have thought it would make a difference if combined with a front splitter, it should also make the rear diffuser work better. It would take a lot of testing though to make it work properly...
As there is plenty of ground clearence I think you could flat floor it with a venturi under there as well..
G
My spare chassis though was to be used in GT's and does have mountings for a flat floor, but I dont know if it was ever fitted with one...
I'd have thought it would make a difference if combined with a front splitter, it should also make the rear diffuser work better. It would take a lot of testing though to make it work properly...
As there is plenty of ground clearence I think you could flat floor it with a venturi under there as well..
G
GlynnsportRacing said:
Actually this Season, Tim's was the only Sag with the flat floor fitted. Mine should hopefully have one for next year. Don't know why the Tuscans never seemed to but then there also seemed to be mixed views as to whether the front splitter made a positive difference to them or not.
My Sagaris has a flat floor - it is simply a few sections of ali bolted to the chassis - made all the easier if you weld tabs to the chassis then measure up and fit the floor with the chassis upside down before you do anything else (he said, feeling smug).The Tuscans didn't have them as they were forbidden under the regs. Well Peter Wheeler aside that is. Graham - I doubt very much you could put a venturi under a Tuscan - the ground clearance is about 3", but the set up on most Tuscans means you use a lot of that. The bodywork on my Sagaris has grounded out just behind the front wheels, probably on a kerb.
Anyway, if I can find somwehere to host a photo quickly and easily I will post it up. Neither Tim nor I were running floors under the engine bay which does defeat a big part of the reason for doing it, but I will be rectifying that on ours for next season. The flat floor does bring a host of other problems - namely cooling of engine, gearbox and diff. And brakes potentially.
teamHOLDENracing said:
Anyway, if I can find somwehere to host a photo quickly and easily I will post it up.
If anyone need any pic's hosting, just email them to me at tvr400se@dbm.org.ukAnd I'll put them on www.tvr400se.co.uk
teamHOLDENracing said:
Neither Tim nor I were running floors under the engine bay which does defeat a big part of the reason for doing it
Without a flat floor to the front you're unlikely to get smooth attached flow, so you'd struggle to get any extractors to work well (the only reason I can see for doing this). I wonder if you could get a compromise between engine bay ventilation and under body air flow by putting a fine mesh under the engine bay? That would tend to damp down large scales eddies but should still allow some diffuse ventilation.teamHOLDENracing said:
Here you go - chassis upside down with flat floor fitted. Sorry about photo size!
Thanks for the pics Andy, it looks quite a simple operation, thats without the side effects you mentioned that come with it i.e. cooling. Over the next couple of weeks, I'm off to Blackpool to see John Reid to discuss the extent of the works to be carried out on my car, the list keeps growing. GreenV8S said:
teamHOLDENracing said:
Neither Tim nor I were running floors under the engine bay which does defeat a big part of the reason for doing it
Without a flat floor to the front you're unlikely to get smooth attached flow, so you'd struggle to get any extractors to work well (the only reason I can see for doing this). I wonder if you could get a compromise between engine bay ventilation and under body air flow by putting a fine mesh under the engine bay? That would tend to damp down large scales eddies but should still allow some diffuse ventilation.they were outlawed by the challenge and i'd guess that still stands!
for ground effect you have to run very low (28mm? ISTR ideal) so low front splitter needed.
oil/coolant collects as graham says, but more importantly it all turns up at the loaded wheel at the next corner!
took mine off as it made no diference (to my humble griff) and made getting to anythig a nightmare.
andy
for ground effect you have to run very low (28mm? ISTR ideal) so low front splitter needed.
oil/coolant collects as graham says, but more importantly it all turns up at the loaded wheel at the next corner!
took mine off as it made no diference (to my humble griff) and made getting to anythig a nightmare.
andy
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