4.3 TVR Power speed 6

[Barry Ashcroft]

Tvr Power said:

Nitrous was my personal option this was just to show that Speed Six engines can take extreme power increases, has for the nitrous kits if fitted by Tvr Power 3 year unlimited mileage warranty will still be valid

Dom

Thats impressed me

Next time I'm in Nuneaton at my office I'll call in for a chat

[S5TVR]

Tvr Power said:

Feel free to take our 4.3ltr on any other rolling road
Dom

Dom,

If the numbers are right then it really is a fantastic achievement and I'll be seriously thinking of signing up for the conversion. As for which alternative Dyno to test it on, you could do worse than to take it to Joolz at Trackcar as he'll have a library of SP6 and AJP V8 charts against which to compare the 4.3.

[Targarama]

How much are these power figures when translated into pub/car magazine figures? (i.e. flywheel). I understand this would probably estimated in this case.

Edited by Targarama on Sunday 28th September 17:55

[macdeb]

Tvr Power said:

yzf1070 said:

batman0404 said:

Why use nitrous?
Do you really want to blow it up before it blows up on its own accord??

TROLL

Top marks to Dom and the chaps at Power

Nitrous was my personal option this was just to show that Speed Six engines can take extreme power increases, has for the nitrous kits if fitted by Tvr Power 3 year unlimited mileage warranty will still be valid

Dom

Nice one Dom. Don't think people realise that N2O has moved on a bit since the eighties.

[sidewayz]

Glad you are up and running again Dom YHM

[shapeshifter]

Are the 4.3's for sale?

[cmr2payne]

shapeshifter said:

Are the 4.3's for sale?

yes

http://www.tvrpower.co.uk/sp6.4.3.php

[The Pits]

Dom, that's a work of art! Stunning looking job. Must be an absolute monster.

Edited by The Pits on Monday 29th September 10:40

[tomTVR]

Wow great stuff, i have been waiting fot this for ages. Seems quite good value also when you consider the numbers and the cudos of having a 4.3. Definatley worthwhile choice if you plan on keeping the car for a few years.

[RayVonn]

Obviously not wanted to pry into anyone's secret development work, but has this engine had any other mod's made other than an increased capacity? ie: like the RG 'buckets', etc.

[Tvr Power]

RayVonn said:

Obviously not wanted to pry into anyone's secret development work, but has this engine had any other mod's made other than an increased capacity? ie: like the RG 'buckets', etc.

RG Bucket design where originally developed by TVR on there speed twelve nothing to do with Powers 4.3 package


Dom

Edited by Tvr Power on Thursday 9th October 13:10

Edited by Tvr Power on Thursday 9th October 18:39

[_DeeJay_]

Tvr Power said:

RayVonn said:

Obviously not wanted to pry into anyone's secret development work, but has this engine had any other mod's made other than an increased capacity? ie: like the RG 'buckets', etc.

RG Bucket design where originally developed by TVR on there speed twelve nothing to do with Powers 4.3 package


Dom

Edited by Tvr Power on Thursday 9th October 13:10

Edited by Tvr Power on Thursday 9th October 18:39

Which begs the question - if they did that on the Speed 12, and subsequent non-bucket engines had no end of finger follower issues then why didn't it made the production engines?

[Whitey]

Because TVR, the company we all knew and loved ceased to exist. Hence the bucket head never made it into actual production.

Edited by Whitey on Thursday 9th October 19:48

[tail slide]

_DeeJay_ said:

Which begs the question - if they did that on the Speed 12, and subsequent non-bucket engines had no end of finger follower issues then why didn't it made the production engines?

Main problem was apparently one or more batches of f.followers that were not made to right spec, others were fine, but TVR did not own up to it.

They can work perfectly well, and improved f.f's available now that are lighter/stronger/better oil supply going through them.

[_DeeJay_]

tail slide said:

_DeeJay_ said:

Which begs the question - if they did that on the Speed 12, and subsequent non-bucket engines had no end of finger follower issues then why didn't it made the production engines?

Main problem was apparently one or more batches of f.followers that were not made to right spec, others were fine, but TVR did not own up to it.

They can work perfectly well, and improved f.f's available now that are lighter/stronger/better oil supply going through them.

I don't really want to open up that can of worms again, however my impression was it wasn't just the material they were made out of that was the problem. I avoided a speed 6 car until the 2004 revised engine for that reason.

Maybe I'm misunderstanding, but I figured the speed 12 was a relatively old engine and therefore would have been built at the same time as speed 6's which were still using finger followers. I heard Ricardo modified the head and moved to a bucket design but surely that was a long time after the speed 12 hit the road?

[VYT]

_DeeJay_ said:

tail slide said:

_DeeJay_ said:

Which begs the question - if they did that on the Speed 12, and subsequent non-bucket engines had no end of finger follower issues then why didn't it made the production engines?

Main problem was apparently one or more batches of f.followers that were not made to right spec, others were fine, but TVR did not own up to it.

They can work perfectly well, and improved f.f's available now that are lighter/stronger/better oil supply going through them.

I don't really want to open up that can of worms again, however my impression was it wasn't just the material they were made out of that was the problem. I avoided a speed 6 car until the 2004 revised engine for that reason.

Maybe I'm misunderstanding, but I figured the speed 12 was a relatively old engine and therefore would have been built at the same time as speed 6's which were still using finger followers. I heard Ricardo modified the head and moved to a bucket design but surely that was a long time after the speed 12 hit the road?

The bucket head was a modification to the Speed 12, memory says that the speed 12 initially used finger followers just like the Speed 6.

[sidewayz]

The Pits said:

Dom, that's a work of art! Stunning looking job. Must be an absolute monster.

Edited by The Pits on Monday 29th September 10:40

Just packed mine of for the treatment....Gulp!

[D14 AYS]

sidewayz said:

The Pits said:

Dom, that's a work of art! Stunning looking job. Must be an absolute monster.

Edited by The Pits on Monday 29th September 10:40

Just packed mine of for the treatment....Gulp!

Good man keep us informed

[sidewayz]

D14 AYS said:

sidewayz said:

The Pits said:

Dom, that's a work of art! Stunning looking job. Must be an absolute monster.

Edited by The Pits on Monday 29th September 10:40

Just packed mine of for the treatment....Gulp!

Good man keep us informed

Will do!

Edited by sidewayz on Tuesday 28th October 09:17

[sidewayz]

Well it's been a long time coming, but thanks to the excellent Dom and his team I pick up my T350 during next week with a 4.3 under the bonnet.Trimar then have a few more bits and peices to sort out for me but I'll post first impressions for those who are interested.

Edited by sidewayz on Thursday 12th February 17:16