Tuscan 3.6 - 373 bhp !

[red rose]

We took a 3.6 Tuscan over to Autocraft today and ran it on their rolling road.

The guys wanted a benchmark figure for a standard 3.6 Speed 6, as their T350C rebuild (with head mods) is almost complete and they had not run a 3.6 on their rollers.

They made a couple of runs – the best of which was an impressive to 373 bhp at the flywheel (298 bhp at the rear wheels).

[pic]http://i7.photobucket.com/albums/y259/tuscanrr/MarkTuscandynochart.jpg[/pic]

[_DeeJay_]

Does it really make it's peak power that high in the rev range? I thought it was quoted at less than that?

[whitey]

Can the owner also put in on the Surrey Rolling Road so we can then compare figures to other cars like all the Cerbies that have been on there?

Has anyone compared the figures from Autocrafts rolling road to others?

Dont want to open a can of worms it's just the figures can only be taken with a pinch of salt until compared to others.

cheers
Whitey

[the pits]

_DeeJay_ said:

Does it really make it's peak power that high in the rev range? I thought it was quoted at less than that?

well that's what the 3.6 feels like to drive.

What a good result - I always thought the 3.6's were quick!

[chris watton]

the pits said:

_DeeJay_ said: Does it really make it's peak power that high in the rev range? I thought it was quoted at less than that? well that's what the 3.6 feels like to drive. What a good result - I always thought the 3.6's were quick!

'Tis true, the limiter on mine doesn't kick in untill well past the 7K rev range, pulling like a train until that 'brick wall' is reached. I know this because I have done well over 60 in 1st up the limiter.

[nelly1]

Good result !!

Those transmission losses look a bit on the high-side though........

Maybe your clutch is slipping ?

[W333]

Love the close ratio gearbox, 60mph in first is fantastic. As for getting the figures then going off somewhere else for verification, I can only see that as a bit of a waste of cash. Each to their own I suppose.

Impressive figures though, you must be mighty chuffed with them .

[R TOY]

whitey said:

Can the owner also put in on the Surrey Rolling Road so we can then compare figures to other cars like all the Cerbies that have been on there? Has anyone compared the figures from Autocrafts rolling road to others? Dont want to open a can of worms it's just the figures can only be taken with a pinch of salt until compared to others. cheers Whitey

Now then dont be a spoil sport, if that rolling road put a 3.6 at 373hp then as far as us 3.6 owners are concerned its gospel,OK ! When anyone asks me what my motor kicks out i shall quote this result.

ps What rpm should the limiter come in?? I,ve had a scary 7600 on my telltale and no limiter as yet.
mind it also tried to tell me i'd done 205mph and i never did more than 195, honest.

>> Edited by R TOY on Sunday 2nd October 21:26

[the pits]

I thought the 3.6 revved over 8,000 and cut out at 8200. The 4.0S cutting out at 8,000 or just under that.

Mine feels like it would spin past 8,500 if it had half a chance. There is no tail off in power at all at high revs.

[SXS]

I believe their losses are calculated based on percentages like Surrey Rolling Road, unless the customer asks for coast down calculations.

25% is where they put it.

Was well impressed with this chart so spoke to Dave about it, and he said if anyone wants to do a calibration check, they're more than welcome to take their car over to Abbey Motorsports for a hub-dyno run to compare results, but he's not bothered, so you'll have to pay for it yourself

In the serious motoring and racing industry, these are the top respected dynos:

1) Abbey Motorsports (a specially developed 2/4 wheel drive hub-dyno room with a full breathing system)
2) Thor Racing (hub dyno 2/4 wheel)


So if you ever need a second opinion, this is where you go.

Too many people keep mentioning the SRR as if its the bottom line which it is not, its an independant line which is great for tuners competing etc., but if you want something which holds serious water, I'd recommend you go to one of the above two.

But I wouldnt be surprised if SRR, Autocraft, Nobles are quite close.

[JR]

Gazboy said:

Er, isn't that about a 26% transmission loss???

No, 373 down to 298 is a 20.1% loss - still a touch on the high side though.

[_dobbo_]

That's a great result seeing as TVR are now saying 365 for the 4 litre.

Plus the Tuscan convertible in evo this month only made 345.88bhp @ 6800rpm

[Mr Freefall]

nelly1 said:

Good result !! Those transmission losses look a bit on the high-side though........ Maybe your clutch is slipping ?

My 3.6 made 306.9 at the wheels which was translated to 358.8 at the flywheel, and after a remapp made 375.2 at the flywheel which was 319 odd at the wheels

The difference does seem quite alot for wheels to flywheel conversion

This was at Austec FYI

Mr F



>> Edited by Mr Freefall on Monday 3rd October 14:41

[Mr Freefall]

_dobbo_ said:

That's a great result seeing as TVR are now saying 365 for the 4 litre. Plus the Tuscan convertible in evo this month only made 345.88bhp @ 6800rpm

The Tuscan convertable was going to be restricted because of the roof. I recall somewhere they were going to restrict the top end to 150mph. I would imagine the Convertable does not share the same 4.0lte plant as the Tuscan S or the Sagaris.

The Std 4.0 ltr was only 360 when it first came out too, its only the 4.0 RR (S) that has been at 380-390-405 guise...


Mr F



>> Edited by Mr Freefall on Monday 3rd October 14:40

[rev-erend]

SXS said:

I believe their losses are calculated based on percentages like Surrey Rolling Road, unless the customer asks for coast down calculations. 25% is where they put it. Was well impressed with this chart so spoke to Dave about it, and he said if anyone wants to do a calibration check, they're more than welcome to take their car over to Abbey Motorsports for a hub-dyno run to compare results, but he's not bothered, so you'll have to pay for it yourself In the serious motoring and racing industry, these are the top respected dynos: 1) Abbey Motorsports (a specially developed 2/4 wheel drive hub-dyno room with a full breathing system) 2) Thor Racing (hub dyno 2/4 wheel) So if you ever need a second opinion, this is where you go. Too many people keep mentioning the SRR as if its the bottom line which it is not, its an independant line which is great for tuners competing etc., but if you want something which holds serious water, I'd recommend you go to one of the above two. But I wouldnt be surprised if SRR, Autocraft, Nobles are quite close.

I'm starting to think you are on commision from Abbey

[nelly1]

Mr Freefall said:

nelly1 said: Good result !! Those transmission losses look a bit on the high-side though........ Maybe your clutch is slipping ? My 3.6 made 306.9 at the wheels which was translated to 358.8 at the flywheel, and after a remapp made 375.2 at the flywheel which was 319 odd at the wheels The difference does seem quite alot for wheels to flywheel conversion This was at Austec FYI Mr F

I had mine done at Austec, with this result......





>> Edited by nelly1 on Monday 3rd October 15:37

[unrepentant]

I have a 3.6 litre Tuscan 2, previously had a 4.0 Tuscan. I am absolutely convinced that the 3.6 is quicker. It's certainly noisier.

[oxbow]

unrepentant said:

It's certainly noisier.

Finger followers?

[chris watton]

oxbow said:

unrepentant said: It's certainly noisier. Finger followers?

But what about the following fingers!!!

[unrepentant]

oxbow said:

unrepentant said: It's certainly noisier. Finger followers?

I had mine removed and replaced with CWCesque Lady Fingers.

Speaking of which he's been eerily silent recently. Do you think he bored the Fins into doing away with him.



Here's to the Fins then.