Red Rose Dyno Run Results.
Discussion
Surrey Rolling Road. 28/9/05
June 2000 Tuscan Red Rose, with 2001 engine re-build to S Spec. 16000 miles on re-built engine. Minimal oil use, serviced 1000 miles ago.
At Flywheel: 339.4 BHP/291 Torque.
At Rear wheels: 281.3 BHP/240 Torque.
Point 1.
Surrey Rolling Road, so figures slightly pessimistic(realistic!), BUT easily able to compare to Cerbera’s on same rolling road, in particular as per the first post in this thread:
www.pistonheads.com/gassing/topic.asp?p=4&f=6&t=208756&h=0
Point 2.
My fuelling mixture was very good, but the handful of other Tuscans that have been on the SRR have ALL been running very weak in the mid-range. Highest Tuscan got about 360bhp, but not sure of what the engine spec was. All others less BHP.
Point 3.
We all know each TVR engine gets slightly different figures, it seems that with more Speed 6 engines going on the rollers that the Speed 6 does not make what the factory says as first thought and also the engines vary in power as per the AJP V8.
It would be good if SXS could add these to his BHP World league:
www.bhpworld.com/leagues/cerbera_league.htm
We can take my figures as benchmark figures for a 2000/2001 Red Rose Engine.
Then if someone with a more recent ie: 2004 + 4.0 litre engine standard or S could go to the same Rolling road we can get benchmark figures for later spec engines.
My guess is a Sagaris on SRR would not make the claimed numbers, especially torque.
The fact if proven that later engines are more powerful would certainly make me happier when paying for the inevitable re-build.
Cheers
Whitey
>> Edited by whitey on Thursday 6th October 17:49
June 2000 Tuscan Red Rose, with 2001 engine re-build to S Spec. 16000 miles on re-built engine. Minimal oil use, serviced 1000 miles ago.
At Flywheel: 339.4 BHP/291 Torque.
At Rear wheels: 281.3 BHP/240 Torque.
Point 1.
Surrey Rolling Road, so figures slightly pessimistic(realistic!), BUT easily able to compare to Cerbera’s on same rolling road, in particular as per the first post in this thread:
www.pistonheads.com/gassing/topic.asp?p=4&f=6&t=208756&h=0
Point 2.
My fuelling mixture was very good, but the handful of other Tuscans that have been on the SRR have ALL been running very weak in the mid-range. Highest Tuscan got about 360bhp, but not sure of what the engine spec was. All others less BHP.
Point 3.
We all know each TVR engine gets slightly different figures, it seems that with more Speed 6 engines going on the rollers that the Speed 6 does not make what the factory says as first thought and also the engines vary in power as per the AJP V8.
It would be good if SXS could add these to his BHP World league:
www.bhpworld.com/leagues/cerbera_league.htm
We can take my figures as benchmark figures for a 2000/2001 Red Rose Engine.
Then if someone with a more recent ie: 2004 + 4.0 litre engine standard or S could go to the same Rolling road we can get benchmark figures for later spec engines.
My guess is a Sagaris on SRR would not make the claimed numbers, especially torque.
The fact if proven that later engines are more powerful would certainly make me happier when paying for the inevitable re-build.
Cheers
Whitey
>> Edited by whitey on Thursday 6th October 17:49
jellison said:
jellison said:
So any other RR's or S cars been on SRR or up for getting down there?
Give me a couple of weeks to sort some {ahem!} minor niggles and I'm game!
Nelly - is it an S or RR?
It's an 'S' (to all intents and purposes....)
The power at Austec was as follows....
Should be back on the road by next week (after about 3 months...
)
whitey said:
Is that not JSG's ex-car. So a 2000 standard 4.0 re-built to S spec by TVR power in 2003 or 2004?
Best we clarify this, as my personal interest lies in any power increases over the years from different builds etc.
Yup, that's pretty close...
Full (engine) details:
* March 2000 car - originally "standard"
* First rebuild in March 02 - rebuilt to standard spec engine (upgraded to RR brakes/suspension, though)
* 2nd rebuild to S spec in Aug 04
* De-cat and matching ECU fitted at the same time. Quoted by TVR Power as "good for 395BHP" at the time (Good ol' Dom - true to his word
) * Also running the SFR throttle-bodies that aren't made of polystyrene.
* Run in very, VERY meticulously the second time. In fact, if you watch the Decat + CCC vid on SleepyFish, you'll see (or rather hear) that I nail the change-up at 3500 in every geat. Was at 1250 miles post rebuild then.
As an aside, the car was always fast - noticeably faster than any of the other Tuscans I test drove when shopping for one. So I'm not sure I'd expect those figures from most.
Ok, so lets call it a 2004 spec re-build to S spec. Also de-catted. I guess they must have upgraded the injectors to S spec also.
Cannot wait to see the SRR figures to compare.
If I knew that a re-build to later spec S would up my bhp by 50ish bhp it would make the inevitable re-build easier to swallow!
cheers
Whitey
Cannot wait to see the SRR figures to compare.
If I knew that a re-build to later spec S would up my bhp by 50ish bhp it would make the inevitable re-build easier to swallow!
cheers
Whitey
whitey said:
Ok, so lets call it a 2004 spec re-build to S spec. Also de-catted. I guess they must have upgraded the injectors to S spec also.
Cannot wait to see the SRR figures to compare.
If I knew that a re-build to later spec S would up my bhp by 50ish bhp it would make the inevitable re-build easier to swallow!
Was told that the new ECU was mapped for a de-cat, too.
The car didn't feel (that) much quicker after the rebuild, mind... The difference between it as "standard" and the others I drove was much more noticeable than the difference between it as "standard" and post-rebuild.
jellison said:
Yes - but we are talking 65bhp more an similar torque - not likely mopre likely rollers.
I'm as curious as you - just give me a few weeks (as I've said) and we'll find out - name your venue!
SRR sounds like the benchmark, so we'll see
I'll def. concur with James though - it is one quick car!!
...the fact it spun out on me on a dry road in a straight line is testament to that...
J_S_G said:
You drive like a girl!
Sorry we're not all driving Gods
!! Could've been worse though!
A friend of a friend just picked up his P&J (Ferrari 355) from a £3k service only to spin while overtaking some 100yds from the garage!
He actually hit the car he was overtaking, then a wall, then the car again, then the wall again
Not a straight panel left on it.
And I thought I was gutted!
>> Edited by nelly1 on Friday 14th October 09:05
jellison said:
Yes - but we are talking 65bhp more an similar torque - not likely more likely rollers.
If this were the case - where are all the other 400bhp Tuscan curves from Austec
I haven't seen one yet!
In fact, at their open day a while back, I didn't see too many cars make their rated power (the best Tuscan I saw only made 330 bhp!)
HarryW said:
By the performance of Tony T88CAN's motor, I wouldn't be a bit surprised if the later RR re-builds are around the 390+ figure. AFAIK his motor had the 'necessary work' done last year and by feck it pulls quicker away than any other Tiv I've been behind.
Harry
Thanks for the sales pitch Harry, the commission will be in the post
Nelly is right not many Tuscan venture onto the rollers
I was at Austec on the open day, and had planned on running, I think Harry was curious to what it was making
however a coolant leak appeared when we arrived so i wasn`t going to take any chances, it turned out to be "overfilled"
Will i run it on the rollers in the future? probabily not, hopfully it will be sold in the next few weeks anyway, but to be honest i can`t see why some of you guys are so obsessed with the ultimate power your car`s are dishing out, I suppose the Cerb boys are a bit cheesed off that there V8 aint making the quoted figures, who knows
For me personally my car was FULLY Rebuilt in spring 2004, At that time i was told verbally at the factory that the head had been tweaked slightly, from late 2003 onwards and this alone had released another 10/15 BHP hence the amended figure of 400/405 for the Tuscan S/Sagaris, if this applies to ALL 4ltr Tuscans then my guess would be that standard Tuscans, post late 2003 will be dishing out 370/375 bhp,RR,s 390/395bhp and "S" at 400/405? It might be b
x but until some one can prove other wise, then that is what i will believe.
On the road my car is rather lumpy at times and is very fuel sensortive however i have never had trouble
in keeping up with other Tivs,
Now that is fully run in it would be interesting to run it against Craigs (cerber450) Purple beast, but this is not to be, as he now has an unfair advantage Am i happy with the performance of my Tuscan? yes,
Do i care what BHP it dishes out on this rolling road or that rolling road? no not really
I just drive and enjoy it,.. as we all should Ash if you want a cheap sorted Tuscan to play with mate give us a call
>> Edited by T88CAN on Friday 14th October 17:17
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