Griff 500 Power etc
Discussion
I too would be very interested to see what top end a factory std Griff 500 would pull. I highly doubt it would pull a genuine 160mph.
A Griff @ 140 feels Very unstable / not at all confidence inspiring.
As for 0-60, my own “ tweaked” car feels shatteringly quick to 60 and i ride SuperBikes.
Any one tried a rear spoiler in conjunction with the OE front spoiler ?
A Griff @ 140 feels Very unstable / not at all confidence inspiring.
As for 0-60, my own “ tweaked” car feels shatteringly quick to 60 and i ride SuperBikes.
Any one tried a rear spoiler in conjunction with the OE front spoiler ?
Found mine to be less than stable when changing direction around 100 or so on a particular piece of track. Felt it was the rear causing the problem so altered the exhaust exit so the pipes come straight back rather than the original arrangement which looks to be rather poor for air flow .
Also fitted a boot lip spoiler which was modelled on an Audi TT but slightly re profiled. Those changes made a very noticeable improvement, to the point where the front felt floaty. Fitting a substantial splitter at the front sorted that but it is probably larger than you would want on a polishing car.
More recently after having a grassy moment I made a rear diffuser which was the biggest improvement of all making it feel altogether more stable in high speed corners.
Not convinced that the original front splitter does a lot.
Also fitted a boot lip spoiler which was modelled on an Audi TT but slightly re profiled. Those changes made a very noticeable improvement, to the point where the front felt floaty. Fitting a substantial splitter at the front sorted that but it is probably larger than you would want on a polishing car.
More recently after having a grassy moment I made a rear diffuser which was the biggest improvement of all making it feel altogether more stable in high speed corners.
Not convinced that the original front splitter does a lot.
I managed 150 mph down an airstrip easily enough, I was coming onto it at about 70 mph so not a standing start, and I later found my air intake pipe crushed so more to come. I’ve gone onto Mbe ign/ fuelling since and it’s clearly a bit faster again so i’d be confident it will make 160mph, the car felt stable if light on its front wheels and not anything like as bad as some people say. Maybe my alignment was spot on as it had been geo’d only weeks before and I retain the front splitter which imho works especially over 100 mph.
A Chim so probably more aero efficient,,,,,,,
A Chim so probably more aero efficient,,,,,,,
phazed said:
I was told that only a few days ago, not in jest!
Hi Alun, catch up soon.
Hi Peter, yes I don’t bell you for a few weeks and next thing I know your looking at Cerbs,,,, Hi Alun, catch up soon.
I do like the idea of the roll cage, mainly for the extra chassis strength it’s likely to add for more consistent handling at speed.
Catch up soon
Olivera said:
RichB said:
I think most contemporary road tests managed a 0-60 of around 4.2 secs. As others have said many people have reached 160mph
A contemporary TVR road test needs taken with a large pinch of salt when the factory were providing the cars...RichB said:
Really? I was around back then and they all seemed to reach similar conclusions. As did most people on Pistonheads who timed their cars... Why do you feel otherwise?
Many reasons.TVR were already fabricating power official power figures.
This has been stated on PH before with regards to press Griffiths:
"That Griff at least was untypical for production cars, allegedly being one of less than a dozen very early examples with a 234 cam (among some other top end 'refinements' probably). It kind of backfired on them as Autocar reported it was a pain to drive slowly as well as being a twitchy b*gg*r to drive in comparison with the 430 they drove a year prior to it."
Then there is the top gear cerbera drag race debacle.
Olivera said:
RichB said:
Really? I was around back then and they all seemed to reach similar conclusions. As did most people on Pistonheads who timed their cars... Why do you feel otherwise?
Many reasons.TVR were already fabricating power official power figures.
This has been stated on PH before with regards to press Griffiths:
"That Griff at least was untypical for production cars, allegedly being one of less than a dozen very early examples with a 234 cam (among some other top end 'refinements' probably). It kind of backfired on them as Autocar reported it was a pain to drive slowly as well as being a twitchy b*gg*r to drive in comparison with the 430 they drove a year prior to it."
Then there is the top gear cerbera drag race debacle.
yonex said:
IMO.
I’d say my Griff is sub 5 second 60 car. It’s got a 5.2 JE engine and a fairly soft cam, putting out a genuine 300+HP. I’d say it’s nowhere near 4 seconds, ever.
Have you tested this theory with a proper timing device with a proper race start.I’d say my Griff is sub 5 second 60 car. It’s got a 5.2 JE engine and a fairly soft cam, putting out a genuine 300+HP. I’d say it’s nowhere near 4 seconds, ever.
If I can manage 110 mph within 1/4 mile in 12.60 seconds 0-60 in 4 seconds is very feasible with the right conditions and aggressive race start, we are talking 5000 revs and dump the clutch here, it’s not for the faint hearted but it’s absolutely possible, I did 12,7 1/4 on road tyres,,,,,, usually about 13.5 seconds with Catted exhaust.
I did lots of runs, consistently about 13 seconds so it’s not made up or some bragging rights it’s just fact.
If a JE 5.2 can’t do it something’s amiss or your not trying hard enough as mines a 450 rebuilt by Dom with no real tuning mods just good compression dyno’d to about 295bhp but over 340 ft torque which is where the speed comes from. I regularly got beat by more tuned Tvr with higher bhp figures but that’s to be expected as mines not even ported, standard heads the lot!?!?
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