TVR T350T high speeds
TVR T350T high speeds
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Discussion

AdvocatusD

Original Poster:

2,277 posts

254 months

Saturday 26th February 2011
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If you had an opportunity to max out your T350 Targa, what would you do with the panels? In or out?

I've heard that the panels can fly off at high speeds, so take them off, but equally I've heard that the rear 3/4 windows can explode if you do?

Any one with some experience? What speeds are we talking about?

Targarama

14,717 posts

306 months

Saturday 26th February 2011
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If you have the later panels with the front & rear fixings they should not fly out. I've done 165+ on the Autobahn, but I mostly prefer 'cruising' on de-restricted stretches at 140mph as anything more feels a bit too fast for my own safety (more my driving ability than the car).

the jollyrodger

569 posts

201 months

Sunday 27th February 2011
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just do it without, sleeker looking and hastle free.

AdvocatusD

Original Poster:

2,277 posts

254 months

Sunday 27th February 2011
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Thanks both. So then the targa-less approach holds no horrors I trust? Will be keeping the window properly wound up.

Recommended tyre pressure?

BCA

8,651 posts

280 months

Sunday 27th February 2011
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I've not had a decent enough look at a T350T, but I definately wouldnt do a vmax run in one roofless (or go beyond 110ish.) Leaving your windows open/ roof section off at 160mph+ is absolutely idiotic in a 'normal' car with millions in development costs - doing so in a TVR is beyond idiotic IMHO.

I'd make sure the T panels are well held down and see how you go, any sign of significant lifting and back off the speed.

GTRene

21,005 posts

247 months

Monday 28th February 2011
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scary stories biggrin

I had besides a TVR Griffith 4.3 BV, also a TVR V8S in that last one my roof popped of, at least 1 part did, lucky for my the front was secured with a extra bonnet-clip? anyway so only the rear side popped out...that was my first high speed try biggrin so I backed off the pedal and later I did make it more secure (also a clip on that side, to much air build up inside, though the griffith was oke without clips I believe.

how is a T350c doing on high speeds...say, you tune it to reach 320km/h is it then still possible to drive without problems? nothing fly's of?

fredd1e

783 posts

243 months

Monday 28th February 2011
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198MPH!? only the car off the road I suspect.... Not sure the T350C's aero is optimised for such high speed nor even if its possible with "only" an S6 engine ?

DonkeyApple

66,735 posts

192 months

Monday 28th February 2011
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Only the T400, T440 and Typhon shapes had any actual wind testing and were designed to have downforce on the Mulsanne Straight.

I really wouldn't want to run high speeds on conventional TVRs as I would think that it would be down to complete luck if any were stable at that point.

I've had a Griff reading 6.5K RPM in top once but on another occasion at just 130 I could feel the front lifting due to weather conditions.

The T350 I nver took over 140. Primarily because it was a targa and the noise from 110 upwards was not reassuring. At 140 it was light.

Personally, I would leave vmax to cars actually tested and designed to run at vmax biggrin

7 TVR

2,589 posts

191 months

Wednesday 2nd March 2011
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Not sure i understand alot of these repliesconfused so you go out and spend a small fortune on a high performance car but then never max it out or run it over 120ish for fear of roof panels blowing off, rear windows exploding!! I'm with the guy who has had his at 160, horses for courses i suppose , i've had my bike showing 185 on the clock and trust me thats got no safety devices!

BCA

8,651 posts

280 months

Wednesday 2nd March 2011
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7 TVR said:
Not sure i understand alot of these repliesconfused so you go out and spend a small fortune on a high performance car but then never max it out or run it over 120ish for fear of roof panels blowing off, rear windows exploding!! I'm with the guy who has had his at 160, horses for courses i suppose , i've had my bike showing 185 on the clock and trust me thats got no safety devices!
Panels on and locked in place well - all good, see what it can do.

Constant Vmax runs/ Autobahn cruiser? - get a car designed for it.

I dont understand people who dont take their sports cars to the limit on track more than those who never 'max' a car - the opportunities for doing the former are far greater - and more fun IMHO. Before anyone says it - yes, I've been in a TVR at scary speeds, and yes, I've been faster in other stuff (204 is my current Vmax at ground level - RUF Turbo R!) You can tell when something has been developed for the job in hand - albeit at greater cost.

aaronc

214 posts

243 months

Wednesday 2nd March 2011
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im not sure what the issue is here, during a session in germany, ive done 140+ with panels on and off with no major probs.

Admittidly it gets a bit windy with the panels off above 120 but no problems.

DonkeyApple

66,735 posts

192 months

Wednesday 2nd March 2011
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7 TVR said:
Not sure i understand alot of these repliesconfused so you go out and spend a small fortune on a high performance car but then never max it out or run it over 120ish for fear of roof panels blowing off, rear windows exploding!! I'm with the guy who has had his at 160, horses for courses i suppose , i've had my bike showing 185 on the clock and trust me thats got no safety devices!
Your bike would have had quite a bit of testing by the factory at those speeds before being sold. Big difference.

Your bike will have had specific aero work to keep it stable.

Your Griff on the other hand, has had none of this. It is a beautiful shape penned by a bloke with a pen and paper. It's never been tested, it was never designed with any aero work in mind. As such, you will find that the front lifts more and more as you increase the speed at which you are pushing it through the air.

With some of the T cars they apparently have glass panels which were never tested at these speeds and have been subsequently proven to come out under the pressures.

Several fixes have been done by TVR and other firms to remedy many things.

However, the simple fact remains that none of the normal road car designs were every fully tested at the kind of speeds the cars are capable of and no regard was really paid to any aero dynamics.

Mattt

16,664 posts

241 months

Wednesday 2nd March 2011
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I thought the T350 was the first Tiv that was wind tunnel tested/optimised?

BCA

8,651 posts

280 months

Wednesday 2nd March 2011
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Mattt said:
I thought the T350 was the first Tiv that was wind tunnel tested/optimised?
I doubt anything short of the TuscanR/Typhon/T440R/Speed 12 was tested. Evo once reported a figure for the Tuscan (Tuscan R to Le Mans story,) but I doubt it ever saw a wind tunnel, or atleast, never did for its development.

They certainly benefited (all modern models) from a relatively sound aerodynamic theory - but too many simple flaws are identifyable for them to have actually been tested in my opinion. I stand corrected if they have, but I really doubt it, and if they had - I have no idea why certain flaws were allowed to remain. smile Let me not detract from TVR's efforts - they did spectacularly well without the full works wind tunnel testing, the majority of TVR's are reasonably neutral at great speed... its not easy to achieve that at all.

GTRene

21,005 posts

247 months

Wednesday 2nd March 2011
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fredd1e said:
198MPH!? only the car off the road I suspect.... Not sure the T350C's aero is optimised for such high speed nor even if its possible with "only" an S6 engine ?
No, when and if I ever buy another TVR it could be a T350c but then it will get a LS2/3 engine with about 450hp.
I think that car will reach 300km/h and if thats possible I will also do that occasionally biggrin
so thats why its important for me to know, what will happen? is it still stable or do I have to make some special air things...
Oh, I also live about 30km from the German border/A31 limit free biggrin
not that top-speed is important for me ofcorse...thats boring, but when the car is capable of it I occasionally give it some beans biggrin

are there racers from the T350c? maybe those use the aero things such car needs...

Lost soul

8,712 posts

205 months

Wednesday 2nd March 2011
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AdvocatusD said:
I've heard that the panels can fly off at high speeds,
They are really great cars hehe

GTRene

21,005 posts

247 months

Wednesday 2nd March 2011
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Lost soul said:
AdvocatusD said:
I've heard that the panels can fly off at high speeds,
They are really great cars hehe
maybe thats the least thing of possible problems biggrin

Omerta

2,013 posts

274 months

Wednesday 2nd March 2011
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GTRene said:
are there racers from the T350c? maybe those use the aero things such car needs...
There is a S6 T350 circuit racer - not a coupe I don't think. Have a look in the motorsport forums, he shouldn't be hard to track down.

Omerta

2,013 posts

274 months

GTRene

21,005 posts

247 months

Thursday 3rd March 2011
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Omerta said:
thanks biggrin
a big splitter and a very big wing...
maybe the Germans did run a test, (they also do windtunneltest when they test a car) how much lift/downforce front and rear...but they did not come out in Germany, although a few RHD are there.