What did TVR do to the RV8?
Discussion
Much depends which motors you are talking about...
Bigger capacities, higher compression, balanced, ported heads, bigger valves, own dual valve springs, ported inlet manifolds, trumpets, wilder cams, efi maps, dizzy curve weights/springs, lightened flywheels, uprated clutches, own rods (mainly 4.2 based pistons)...
Not even a complete list, but should give you some idea, and the variations across engine size + spec and date of manufacture throws up as many minor differences again which are quite tricky to fathom at times.
eg you have a simple nomenclatures 4.0, 4.0hc, 4.3, 4.3BV, 4.5BV, 450, 500, 500hc, & all can have minor revisions / omissions, as befits an engine that could be specced at time of purchase I guess.
Bigger capacities, higher compression, balanced, ported heads, bigger valves, own dual valve springs, ported inlet manifolds, trumpets, wilder cams, efi maps, dizzy curve weights/springs, lightened flywheels, uprated clutches, own rods (mainly 4.2 based pistons)...
Not even a complete list, but should give you some idea, and the variations across engine size + spec and date of manufacture throws up as many minor differences again which are quite tricky to fathom at times.
eg you have a simple nomenclatures 4.0, 4.0hc, 4.3, 4.3BV, 4.5BV, 450, 500, 500hc, & all can have minor revisions / omissions, as befits an engine that could be specced at time of purchase I guess.
spend said:
Much depends which motors you are talking about...
Bigger capacities, higher compression, balanced, ported heads, bigger valves, own dual valve springs, ported inlet manifolds, trumpets, wilder cams, efi maps, dizzy curve weights/springs, lightened flywheels, uprated clutches, own rods (mainly 4.2 based pistons)...
Not even a complete list, but should give you some idea, and the variations across engine size + spec and date of manufacture throws up as many minor differences again which are quite tricky to fathom at times.
eg you have a simple nomenclatures 4.0, 4.0hc, 4.3, 4.3BV, 4.5BV, 450, 500, 500hc, & all can have minor revisions / omissions, as befits an engine that could be specced at time of purchase I guess.
Thanks for that, i guessed it was that kind of thing. I just wasn'tr 100% whether TVR did anything major like their own heads from scratch etc.Bigger capacities, higher compression, balanced, ported heads, bigger valves, own dual valve springs, ported inlet manifolds, trumpets, wilder cams, efi maps, dizzy curve weights/springs, lightened flywheels, uprated clutches, own rods (mainly 4.2 based pistons)...
Not even a complete list, but should give you some idea, and the variations across engine size + spec and date of manufacture throws up as many minor differences again which are quite tricky to fathom at times.
eg you have a simple nomenclatures 4.0, 4.0hc, 4.3, 4.3BV, 4.5BV, 450, 500, 500hc, & all can have minor revisions / omissions, as befits an engine that could be specced at time of purchase I guess.
Thanks!
Chris71 said:
Mostly they added a large dose of optimism.
I don't think any of the cars left the factory with TVR's claimed power outputs. Some of them are probably closer to Range Rover or SD1 power outputs than Blackpool would have liked to admit.
If you just bought a 500 and think like that, I can only deduce you must have bought a real pup?I don't think any of the cars left the factory with TVR's claimed power outputs. Some of them are probably closer to Range Rover or SD1 power outputs than Blackpool would have liked to admit.
spend said:
If you just bought a 500 and think like that, I can only deduce you must have bought a real pup?
It was only meant as a light hearted comment. 
I was under the impression from countless PH threads that you'd be very lucky to find a standard 500 making 340bhp? I have no idea what my 'pup' is putting out, but it feels healthy enough to me.
Chris71 said:
I was under the impression from countless PH threads that you'd be very lucky to find a standard 500 making 340bhp? I have no idea what my 'pup' is putting out, but it feels healthy enough to me.
You won't find a std 500 getting anywhere close to 340!Take a look at the Growl and Roar Dyno results, a standard 500 is doing well to hit 280 - most are lower than that.
theironduke said:
Blimey....
So what is an average 400 going to be making? 200?
210ish, good ones can get in the 220-225 range. The thing with TVR RV8s is the larger the capacity, the more outlandish the bhp claims compared to reality... On the two rolling roads I know best here, an average 500 is at 255-260 according to the operators. On the TVRCC Holland's rolling road day, the unmodified 500s struggled to top 250, while four litres were all comfortably above 200, a 3.6 S6 sat at 335 and a box stock V6 S kicked out 168 - good going after 20 years that So what is an average 400 going to be making? 200?
900T-R said:
theironduke said:
Blimey....
So what is an average 400 going to be making? 200?
210ish, good ones can get in the 220-225 range. The thing with TVR RV8s is the larger the capacity, the more outlandish the bhp claims compared to reality... On the two rolling roads I know best here, an average 500 is at 255-260 according to the operators. On the TVRCC Holland's rolling road day, the unmodified 500s struggled to top 250, while four litres were all comfortably above 200, a 3.6 S6 sat at 335 and a box stock V6 S kicked out 168 - good going after 20 years that So what is an average 400 going to be making? 200?
Standard apart from a sleeved silencer as far as I know.
finestjammy said:
230 from my 400 Standard apart from a sleeved silencer as far as I know.
Indeed, I was being conservative. Standard apart from a sleeved silencer as far as I know. IIRC the at-the-wheels figure Autovisie magazine got back when they had a 4.0 long-termer indicated about 225 at the fly, I know of an absolutely standard, old boy example that made 229 bhp at Austec's rollers, and then there's of course Garlick's car... Gassing Station | Chimaera | Top of Page | What's New | My Stuff