tvr rover based engine specs and choices

tvr rover based engine specs and choices

Author
Discussion

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
EGB said:
Interesting summary. Would like to hear more. Lot's more please.

Can we still believe that the Le Mans Triumph TR7 Rover 3.619L V8 achieved over 500bhp with twin 2in SUs coupled with twin turbos. 30 years ago! If the same was done today, our 5L would/may be capable of nearly 700bhp. Strewth! If this is possible, then the LS3 need not be an option. Lot more life in RV8.

Edited by EGB on Friday 19th April 09:49
personally no i dont think it made 500hp, maybe 350-400hp, 700hp is easily achevible with a pair of blowers if the engine is built to suit and runs a good management system

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
Transmitter Man said:
Rob,

Good post.

Anything special for the 4.2 (mine) and 4.5 SEAC engines power wise?

Several times I've read that the earlier engines churned out more horses. These were homologated for racing if that makes any difference?

I know there are both long and short stroke 5.0's.

Is one an aftermarket combo or were both fitted into various TVR's?

Is there much difference in revability between the two?

Phil
420 SEAC
wedhe motors will be added

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
domV8 said:
A big thank you Rob - I think that's the most instructive post that I have seen on Pistonheads in a few years now.

It certainly contains some not-seen-before gems, and actually solves a mystery that I have been trying to investigate for a while now.

Thanks for taking the time out to post that.

Dom
your welcome

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
Hoover. said:
what about the 4.3 ???? hehe
its coming

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
fausTVR said:
Really good stuff, many thanks. Rob, is it easy to identify a cross-bolted 5.0 engine in situ? I thought they were only the 4.5 / 4.6 engines?
It will be explained later but yes the later 500's where cross bolted

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
FactBV said:
Really helpful, thanks. If you are going to tune a RV8 in stages would it be a good idea to start by fitting a modern engine management system first? I am not sure that the TVR Power MBE system at £3,000 in VAT fitted, would give you the best bang for your buck, but could a good system give you more real world power than head work for example on a 4 litre?
management systems will be covered too,

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
MPoxon said:
Good post Rob. Thanks for taking the time to write and post up.
your welcome

v8 racing

Original Poster:

2,064 posts

252 months

Saturday 20th April 2013
quotequote all
pjac67 said:
Great post Rob - I guess my engine shouldn't rev. to 8000 rpm ? or a misreading dial as it spools up so quick ?
err no if you are seeing 8000 rpm you wont be for long!

JamesK

2,124 posts

280 months

Saturday 20th April 2013
quotequote all
Great idea and post. Are you going to attempt to unpick the 4.3 and 4.5 big valves in the Griffs? hehe

EGB

1,774 posts

158 months

Saturday 20th April 2013
quotequote all
v8 racing said:
EGB said:
Interesting summary. Would like to hear more. Lot's more please.

Can we still believe that the Le Mans Triumph TR7 Rover 3.619L V8 achieved over 500bhp with twin 2in SUs coupled with twin turbos. 30 years ago! If the same was done today, our 5L would/may be capable of nearly 700bhp. Strewth! If this is possible, then the LS3 need not be an option. Lot more life in RV8.

Edited by EGB on Friday 19th April 09:49
personally no i dont think it made 500hp, maybe 350-400hp, 700hp is easily achevible with a pair of blowers if the engine is built to suit and runs a good management system
Thanks for your reply Rob.
The Le Mans TR7 RV8 did 201mph down the Mulsanne. Only Brummme's TVR LS3 has done 202mph. In due course would like your idea on how to build an RV8 to get 700bhp. Even 500 would be plenty. Suggestions for camshaft, blowers, managemnt, cooling etc. Thanks.

carob

3,585 posts

212 months

Sunday 21st April 2013
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What about mine???

Rob

Hoover.

5,988 posts

243 months

Sunday 21st April 2013
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Reading through Rob's replies it looks like we are in for some interesting reading thumbup

leerdam23

606 posts

262 months

Sunday 18th August 2013
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Bump....

BarnFind

494 posts

147 months

Sunday 18th August 2013
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Can you explain what Stage1/2/3 heads actually mean ?

Chilliman

11,992 posts

162 months

Sunday 18th August 2013
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BarnFind said:
Can you explain what Stage1/2/3 heads actually mean ?
Tried twice to reply to your question but Poxy PH mobile won't send it maybe too long )

Alexdaredevils

5,697 posts

180 months

Sunday 18th August 2013
quotequote all
BarnFind said:
Can you explain what Stage1/2/3 heads actually mean ?
Absolutely fk all with out flow numbers

slippery

14,093 posts

240 months

Sunday 18th August 2013
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Alexdaredevils said:
Absolutely fk all with out flow numbers
That's the short version. hehe

Transmitter Man

4,253 posts

225 months

Monday 19th August 2013
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Rob,

...and your view and experience with Wildcat, Merlin, Buick 300 & TA Performance heads?

Phil

BarnFind

494 posts

147 months

Monday 19th August 2013
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How were the 2/2.5 litre V8's made for the italian market ?

300bhp/ton

41,030 posts

191 months

Monday 19th August 2013
quotequote all
Good read. Many thanks for the info.