4.3 TVR Power speed 6

[Tvr Power]

Don1 said:

WolfyJones said:

chris watton said:

WolfyJones said:

Look at Don1 RR numbers compared to other FFF engines, all down to airbox/exhaust mods,

I think that's right Don?

...and the £3k+ Syvecs perhaps?

All 3 FFF cars on that list run syvecs, but Dons is in a different league power wise.

I would ask for fairness, that we don't discuss a rivals product on Doms thread? But all published FFF cars run Syvecs, yes. Breathing is the only difference. (Sorry Dom, back to normal service!)

Don Lad feel free to post on here I might learn something

Dom

[glow worm]

I have an e-mail from Graham Varley where he states he has 53 mm exhaust,no cats and a poor back box on his 4.3 and gets 450bhp at the fly and 388bhp at the wheels... which would confirm significant loss from transmision/tyres etc.
However it does appear a bit to similiar to his stated Torque figure of 387 on the Wiki, so I'm not sure what to believe again. And the WIKI says from RR Power which I thought only did figures at the wheels

Edited by glow worm on Thursday 23 January 21:48

[ShiDevil]

Here's big power from a standard 3.6 :P after Dom did his magic It runs nice and smooth with 350BHP and 301 lb·ft. I think that's correct Dom (i'm not great with graphs, lol.

Decat and ACT Airbox, so there's my benchmark, pre 4.3, (touch wood it doesn't need it, the little rascal). Torque always wins for me.

[gacksen]

WolfyJones said:

Why not just have a independent RR day and put this to bed once and for all.

+1

as advertisement is not based on feel and experience i guess many PHs say it's just down to numbers so looking forward to see some idependent RR figures of standard cars....

[glow worm]

ShiDevil said:

Here's big power from a standard 3.6 :P after Dom did his magic It runs nice and smooth with 350BHP and 301 lb·ft. I think that's correct Dom (i'm not great with graphs, lol.

Decat and ACT Airbox, so there's my benchmark, pre 4.3, (touch wood it doesn't need it, the little rascal). Torque always wins for me.

I agree with the comment on Torque and that's why I'm happy with my 4.5SS. I would like to see more figures from engines with cats still installed and std exhausts.

Edited by glow worm on Thursday 23 January 21:54

[chris watton]

Sorry - I genuinely didn't even know what a 'FFF' was until today, or who where this FFF came from! Up until a few months ago, I was out of the loop since 2007!

What I do know since researching is TVR Power still seems to have a lot of very satisfied customers - and I used to use them when I had my first Tamora without complaint. The 4.3 seems quite a reasonable price considering it is (from what I can gather) a full top and bottom end engine rebuild with proven reliability. I have absolutely no doubt the other companies are very good, but I have given myself a £15k (and a bit...) budget to bring my car up to what I think will be perfect for me, not £25k (I do include stuff other than engine work in my budget...)

I only remarked on the BHP figures because other's were saying that with the upgrade, my car would only be making 10/20 bhp more than factory figures with the upgrade, when I had assumed it would give the factory figures, but at the wheels - meaning at the fly it should be touching 400bhp at least - or so I thought until I come on here...

I mentioned the airbox and cats because I have had experience spending hundreds on the best stuff for my wife's car (albeit a puny 4-pot), all of which made little difference, it was work to the head and bottom end that makes the real difference, especially if the breathing and exhaust are fairly well set up from the factory anyway - but I confess that I don't know much, I just want the best for my car with the budget I have.

[Sagi Badger]

1/4 mile time or even better 0 to 150 and stop.

Anyone tried this?

My money is on a Powers 4.5, £50 to a charity of his choice.

Dom, what think?

J

[Don1]

What are you spending the £15k on? Everything including engine?

[chris watton]

Don1 said:

What are you spending the £15k on? Everything including engine?

Complete re-trim in a couple of months, Nitrons and then the 4.3 (along with new clutch and rad, no doubt) next year, I plan to have the CR box and Quaife LSD (after experiencing just how good they are in my wife's car) - but next year's stuff is after the £15 has been spent, the re-trim and 4.3 will take all of that.

I should be renovating our house....

[twold]

Sadly I know only the basics regarding the workings of internal combustion engines,but I am nonetheless interested in maybe having an uprated engine in the reasonably near future .Would it not be feasible to bench test a totally std 4.0 engine and a Power 4.3 engine at the flywheel using the same breathing/ exhaust /engine management so that there is absolutely no confusion regarding power output ?

regards

[Tamster.]

glow worm said:

I agree with the comment on Torque and that's why I'm happy with my 4.5SS. I would like to see more figures from engines with cats still installed and std exhausts.

Edited by glow worm on Thursday 23 January 21:54

Might be able to oblige Keith, keen to have a go on the Power rollers from an independent point of view, plenty of media hype surrounding the factory bhp/torque figures, and curiousity did kill the Cat

[glow worm]

This was a comparision between my 4.5SS and a "S" Tuscan MK2, both gots Cats and Std exhaust. Mines got a ACT Airbox/trumpets , but I don't think that made any difference.
My engine is still tight and after 2000 miles before the bespoke mapping.



Nice to see you back in a TVR Ceri

Edited by glow worm on Thursday 23 January 22:58

[DJR 7]

Tvr Power said:

DJR 7 said:

Tvr Power said:

DJR 7 said:

Don1 said:

DJR 7 said:

So in a nut shell what's a realistic rear wheel figure for a 4.3 ?
The 1st post shows 370 bhp, I'm assuming that was with a standard air box, exhaust etc.
How much more could you squeeze with an ACT air box, de cat and big bore.
I am looking at having the 4.3 and I'd like to know what to expect

Sir needs to have a look at this Wiki - Modified Speed Six Wiki.

Thank you, interesting read

This sometime gets rather laborious do you all really think I would build a 4.3 engine that makes less hp than 4ltr red rose . come on fellas give me some credit , all the figures your see and you read from our rolling road are true irrespective to what other tuners state.. So in a nut shell our hp figures are at the wheels !

Dom

Dom I've never met you and not sure what's rattled your cage!
I've not suggested in any of my comments that you produce anything other than you claim.
I'm not a customer of yours and therefore unable to quote or speculate as to your claims or abilities.
All I'm trying to establish is true figures obtained by folk that have had 4.3 upgrades.

Darren

Darren no offence taken , all I can say is stick with one engine builder & one Dyno tuner , start with a before and after rebuild there's your Hp increases... It's a free world take your pick

Dom

Thanks for the advice.
Str8six it is for me

[glow worm]

DJR 7 said:

Thanks for the advice.
Str8six it is for me

Darren, Are you having a bespoke mapping once you've run in your 4.3 ?
If Yes , where are you going to have it done ?

[cheeky]

Tvr Power said:

Come to Tvr Power and I'll take you out in an std car that makes 370 bhp at the flywheel , then I'll take you out in a 4.5 that you honestly think makes 392 hp at the flywheel, so you up for this ???

Dom

Dom I would very much like to do this. And the 5.0. It'll be a big input to my decision which I'd hoped to have made weeks ago. Please can you email me back about when would be good?

[leerdam23]

Sagi Badger said:

1/4 mile time or even better 0 to 150 and stop.

Anyone tried this?

My money is on a Powers 4.5, £50 to a charity of his choice.

Dom, what think?

J

Ohhh, can I bring my Tuscan?

(SRR ATW and TVR Powers ATW figure within 8 Hp....different day almost the same result, before figure since remapped by JR - Thanks Dom!!)

[Don1]

Sagi Badger said:

1/4 mile time or even better 0 to 150 and stop.

Anyone tried this?

My money is on a Powers 4.5, £50 to a charity of his choice.

Dom, what think?

J

Love to - but what are the control tyres, are we doing 18" wheels and who is the control driver? My take would be Chris Harris, and it would be a great feature for PH. I'm in.

[billy no brakes]

glow worm said:

Now you've got me confused Dom, and you did my 4.5 ? and I saw loads of graphs from your RR with Jason... and some std 4 litres weren't even making 300bhp at the wheels
I thought Julians Tuscan 4.5 392 bhp was at the wheels from your RR. ????

Edited by glow worm on Thursday 23 January 21:07

My 3.6 is booked in for a 4.5 upgrade on 8th February and I,am happy for you to play with that and check its BHP once its all run in etc for a small fee of course

[glow worm]

billy no brakes said:

My 3.6 is booked in for a 4.5 upgrade on 8th February and I,am happy for you to play with that and check its BHP once its all run in etc for a small fee of course

What's your exhaust configuration ?
Are you having a power run before the upgrade, so you know your starting point ?
I daren't have a power run before because my chains were a little rattley and I wasn't prepared to risk jumping a cog. My upgrade happened because I went for a bespoke mapping, and Jason advised against 2 hours revving upto 6500 rpm.

Edited by glow worm on Friday 24th January 09:36

[spitfire4v8]

Christ. Who was doing the mapping? The time spent at high rpm is tiny. If you added it all up it would be a couple of minutes in total!