RX7 verses TVR Chimaera 500
Discussion
Hi guys,
I cannot lie, I've got a TVR Chim 500, my friend has got the RX7 he has laid down a challenge with his RX - 1/4 mile at Santa Pod (RWYB).
He hasn't had any mods done to the RX, but I know its recently been tuned and rolling roaded etc (he was putting out 235bhp at the wheels - don't know about torque!!)
I had a new cam in my Chim last year (just a normal cam) and my car runs nice but I've got no idea what sort of bhp I would be putting out.
Question is who would you put your money on?
I put the same question on the TVR forum and most favour the TVR (not surprisingly) so I thought I'd ask the Jap guys!
I cannot lie, I've got a TVR Chim 500, my friend has got the RX7 he has laid down a challenge with his RX - 1/4 mile at Santa Pod (RWYB).
He hasn't had any mods done to the RX, but I know its recently been tuned and rolling roaded etc (he was putting out 235bhp at the wheels - don't know about torque!!)
I had a new cam in my Chim last year (just a normal cam) and my car runs nice but I've got no idea what sort of bhp I would be putting out.
Question is who would you put your money on?
I put the same question on the TVR forum and most favour the TVR (not surprisingly) so I thought I'd ask the Jap guys!
I've had a couple of Griff 500's and now I have an RX7 and if the RX is completely standard and provided the Chim doesn't balls up the start the Chim will win, which as an ex Griff owner and now RX7 owner causes me great pain to say 
However I have a mildly modded RX with only the filters, exhaust and ECU done to date and I know I would out accelerate my old Griffs.
A standard 5ltr Chim/Griff will probably be putting out around 270bhp at the rear wheels despite TVR's claim of 320bhp (or 340bhp depending on the owners/publication manual)
It'd be a belting race though - two very different ways of getting high bhp. Is there really no replacement for displacement as they say??
All the best
DC
However I have a mildly modded RX with only the filters, exhaust and ECU done to date and I know I would out accelerate my old Griffs.
A standard 5ltr Chim/Griff will probably be putting out around 270bhp at the rear wheels despite TVR's claim of 320bhp (or 340bhp depending on the owners/publication manual)
It'd be a belting race though - two very different ways of getting high bhp. Is there really no replacement for displacement as they say??
All the best
DC
Steve_Evil said:
Yet another common misconception, a Jap car is just as likely to blow up as a TVR and it will cost just as much to get it sorted, especially if you've wound up the boost.
Stock 'jap Crap' engine vs stock Tiv engine and I'd put my money on the Jap engine lasting much longer.
Start modding either and then it's all down to the quality of the mods and the amount of thought and care put into the installation.
For example I'm having a few fairly important mods added to the FD soon (it's been soon for about 6 months now! and the stuff that's taking time is not the sourcing of things like fuel rails, pumps, boost controllers but the planning, measurement and fabrication of the rad and intercooler.
I want something that'll work with the twin turbos and also with a single I'm planning on for next year. I want it to keep everything cool but not too cool. The intercooler (front mount) needs to flow just enough air so it works okay but the rad gets enough to work well...
On the other hand I could've just bunged the 1st things that came to hand and hoped all the components work together. This is the kind of modding that seems prevalent in some quarters of the Jap scene - probably because it's still relatively young in the uk.
iaint said:
Some TVR owners do make me laugh.
Still, I don't mind driving my piece of crap around, gets enough respect from people who's heads aren't rammed up their own arses.
Well my heads no where near close enough to my own arse so if your at Vmax at the weekend all being well lets have a run together, std 500 vs std RX...
Thnx for your replies guys.
I'm certainly not entering into the Jap cr*p debate.
As a TVR owner, I will say: you have to be an enthusiast to own a TVR and you don't buy it for the build quality But all said and done I wouldn't swap it.
However, I'm going to get my tiv tuned to make sure its running properly and then we're going to fix up a date to race. I'll let you know how we get on
I'm certainly not entering into the Jap cr*p debate.
As a TVR owner, I will say: you have to be an enthusiast to own a TVR and you don't buy it for the build quality But all said and done I wouldn't swap it.
However, I'm going to get my tiv tuned to make sure its running properly and then we're going to fix up a date to race. I'll let you know how we get on
Hughesie2 said:
Some TVR owners do make me laugh.
Still, I don't mind driving my piece of crap around, gets enough respect from people who's heads aren't rammed up their own arses.
Well my heads no where near close enough to my own arse so if your at Vmax at the weekend all being well lets have a run together, std 500 vs std RX...
Sounds good.
I'll have to borrow a std 7 though... mine's a little tweaked, not a lot, just a little though. Note I said some owners, all the guys I've met at various events are really cool and true petrolheads. Just the dismissive few that don't show any respect where, imo, it's due!
iaint said:
Sounds good.
Note I said some owners, all the guys I've met at various events are really cool and true petrolheads. Just the dismissive few that don't show any respect where, imo, it's due!
I'm happy with your slightly tweaked bits, start line to timing beam sound good to you ??
Its not a race of course
Hughesie (defending the honour of 500's the world over)
>> Edited by Hughesie2 on Friday 15th July 10:46
Hughesie2 said:
Sounds good.
Note I said some owners, all the guys I've met at various events are really cool and true petrolheads. Just the dismissive few that don't show any respect where, imo, it's due!
I'm happy with your slightly tweaked bits, start line to timing beam sound good to you ??
Its not a race of course
Hughesie (defending the honour of 500's the world over)
>> Edited by Hughesie2 on Friday 15th July 10:46
I think I might need a few practice runs before hand... sounds like some driving skills are required rather than reliance on mechanical superiority
ian187 said:
As a TVR owner, I will say: you have to be an enthusiast to own a TVR and you don't buy it for the build quality But all said and done I wouldn't swap it.
I've said it before: I happen to think the 7 is the TVR of the japanese world - definately something you need to be an enthusiast to really enjoy, the rotary engine sees to that!
Hughesie2 said:
Short 3/4 mile straight, double apex right then 2 miles to the timing beam...
Never could get the hang of double-apex bends. How does it work if both cars are neck and neck into the bend?
Do they hold their lanes or does one decide to give way? Fastest line round the bend would mean both cars on the same line...
iaint said:
Short 3/4 mile straight, double apex right then 2 miles to the timing beam...
Never could get the hang of double-apex bends. How does it work if both cars are neck and neck into the bend?
Do they hold their lanes or does one decide to give way? Fastest line round the bend would mean both cars on the same line...
person behind generally gives way but track is wide enough, unless you like to go badger hunting
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