Performance V8 4 ltr engine.
Discussion
My 4.0 is producing around 375 BHP, and 350 LBFT of torque .... enough?
..... but it is supercharged and in my TVR
Seriously though, have you taken a shuffty at the TVR forums on PH? In particular the Chimaera and Griffith forums.
Plenty of threads about upgrades, rebuilds etc.
Would be a good source of info.
..... but it is supercharged and in my TVR
Seriously though, have you taken a shuffty at the TVR forums on PH? In particular the Chimaera and Griffith forums.
Plenty of threads about upgrades, rebuilds etc.
Would be a good source of info.
Never used them, but heard a lot about them and seem to be well respected on other forums:
http://rocketsledtuning.webs.com/aboutus.htm
http://rocketsledtuning.webs.com/aboutus.htm
What Rob at V8D and also JE Eng understand much better than most is how the power needs to be delivered in a big, heavy Rangie or Landy in contrast to the majority of RV8 uses which are light sports cars. This becomes critical if the power is then going through a ZF auto.
But arguably the best way and probably the cheapest an easier way to get a slug of extra torque though is to swap the 4 for a standard 4.6. From there it is also much easier to begin eking out additional performance at later dates as it's just head work etc.
But arguably the best way and probably the cheapest an easier way to get a slug of extra torque though is to swap the 4 for a standard 4.6. From there it is also much easier to begin eking out additional performance at later dates as it's just head work etc.
DonkeyApple said:
What Rob at V8D and also JE Eng understand much better than most is how the power needs to be delivered in a big, heavy Rangie or Landy in contrast to the majority of RV8 uses which are light sports cars. This becomes critical if the power is then going through a ZF auto.
But arguably the best way and probably the cheapest an easier way to get a slug of extra torque though is to swap the 4 for a standard 4.6. From there it is also much easier to begin eking out additional performance at later dates as it's just head work etc.
4 litre may be class displacement limit for motorsport (French tout terrain?)But arguably the best way and probably the cheapest an easier way to get a slug of extra torque though is to swap the 4 for a standard 4.6. From there it is also much easier to begin eking out additional performance at later dates as it's just head work etc.
100SRV said:
DonkeyApple said:
What Rob at V8D and also JE Eng understand much better than most is how the power needs to be delivered in a big, heavy Rangie or Landy in contrast to the majority of RV8 uses which are light sports cars. This becomes critical if the power is then going through a ZF auto.
But arguably the best way and probably the cheapest an easier way to get a slug of extra torque though is to swap the 4 for a standard 4.6. From there it is also much easier to begin eking out additional performance at later dates as it's just head work etc.
4 litre may be class displacement limit for motorsport (French tout terrain?)But arguably the best way and probably the cheapest an easier way to get a slug of extra torque though is to swap the 4 for a standard 4.6. From there it is also much easier to begin eking out additional performance at later dates as it's just head work etc.
Bearing in mind recent(ish) posts by the OP I'd hazard a guess that the engine displacement and type is restricted to that commercially available in the base vehicle (class regulations for some FIA motorsport events); 110 was built with 3.9 V8 for the United States of America so any Rover block of nominally 4.0 litres will suffice. I'd guess further that the scrutineers wouldn't pay much attention to whether it has 14CUX and a distributor or uses GEMS.
DonkeyApple said:
Vixpy1 said:
watching this thread as i'm thinking of putting a new engine in my classic
Charlie, join me in sticking a M113 Merc engine. 5L. Easy 350 bhp and torque. As small as the RV8 and should sound like a Spitfire.
Vixpy1 said:
DonkeyApple said:
Vixpy1 said:
watching this thread as i'm thinking of putting a new engine in my classic
Charlie, join me in sticking a M113 Merc engine. 5L. Easy 350 bhp and torque. As small as the RV8 and should sound like a Spitfire.
If not restricted by competition rules then a 4.6 has to be the best all round starting point in my book.
Vixpy1 said:
watching this thread as i'm thinking of putting a new engine in my classic
Chevy LS of some kind has to be a contender. Assuming you can find the engine cheap enough and assuming that's the sort of scope you are meaning.I'm an RV8 nut too (have a couple of them). But unless you want to spend big money on them, they will be comparatively underpowered.
There are adapter kits to convert an LS1 to 'Rover' gearboxes. Or if you want to upgrade the drivetrain, there are adapters to mate the GM 4l80e autobox to the LT230.
Either way it's a mostly 'bolt in' engine swap. Allowing you to keep most of the original drivetrain setup, such as props and axles and retaining the centre diff.
If you want a more modest swap, then I think a 4.6 off ebay and a slightly larger cam is probably the most cost effective route for a performance upgrade. It won't be a rocket ship, but it'll go very nicely.
seeryj said:
John Eales at JE Engineering is the best .
I race one of johns 5 litre Rover V8s.
Only 390bhp so not tuned to hell.
The engine is very reliable and gives massive torque.
390hp from a Rover V8. Suspect a mortgage was involved I race one of johns 5 litre Rover V8s.
Only 390bhp so not tuned to hell.
The engine is very reliable and gives massive torque.
Do you have a dyno for it? Not doubting, but that seems a very high amount for an RV8. And certainly when you view the rolling road results in the TVR forum, few of them really make BIG numbers, no matter what's been done to them, or who built them.
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