Driving Style Question
Discussion
So, I have a Boxster S and a Chimaera.
The TVR has recently had a full service and MOT etc and was given a great bill of health by the garage. My question is when driving in town where I would normally change from 2nd to 3rd at say 20 ish mph in the Porsche, the TVR seems to drive a lot better if I keep it at 2.5+rpm (Leave it in second and just let it rev a little higher). It has a slightly rough feel too it if I let it pull on very low revs. Where as the Boxster just tootles along.
Is this something that I could look in to in terms of it needing something doing or is it just that the two cars engines are very different?
Cheers
PS Gave a colleague a lift home last night as he hasn't been in a TVR before. His words were "I have never been pinned in my seat like that before".....
The TVR has recently had a full service and MOT etc and was given a great bill of health by the garage. My question is when driving in town where I would normally change from 2nd to 3rd at say 20 ish mph in the Porsche, the TVR seems to drive a lot better if I keep it at 2.5+rpm (Leave it in second and just let it rev a little higher). It has a slightly rough feel too it if I let it pull on very low revs. Where as the Boxster just tootles along.
Is this something that I could look in to in terms of it needing something doing or is it just that the two cars engines are very different?
Cheers
PS Gave a colleague a lift home last night as he hasn't been in a TVR before. His words were "I have never been pinned in my seat like that before".....
My bog (in this weather) standard 4.0 is like that too James........bit burbly at low speed, prefers second to third. Burbles even more when the number 8 (rear offslide) plug lead comes off.
If Peter is reading this, how expensive is it to have a longer fifth gear fitted, please? My Chim is at 57mph at 2000 rpm in 5th - my diesel Saab is doing 85 at 2000 revs. Should I wait until the clutch goes, or does the gearbox come out easily for an expert? I have Mat Smith on ratchets, and he says he likes proper jobs like taking gearboxes out.
If Peter is reading this, how expensive is it to have a longer fifth gear fitted, please? My Chim is at 57mph at 2000 rpm in 5th - my diesel Saab is doing 85 at 2000 revs. Should I wait until the clutch goes, or does the gearbox come out easily for an expert? I have Mat Smith on ratchets, and he says he likes proper jobs like taking gearboxes out.
[quote=jamesogt]So, I have a Boxster S and a Chimaera.
The TVR has recently had a full service and MOT etc and was given a great bill of health by the garage. My question is when driving in town where I would normally change from 2nd to 3rd at say 20 ish mph in the Porsche, the TVR seems to drive a lot better if I keep it at 2.5+rpm (Leave it in second and just let it rev a little higher). It has a slightly rough feel too it if I let it pull on very low revs. Where as the Boxster just tootles along.
Is this something that I could look in to in terms of it needing something doing or is it just that the two cars engines are very different?
Cheers
I had this problem on my 4.0 Chim. Read on a previous thread that changing the coolant temp sensor would help. Did this (Lucas part no SNB802) and low speed town driving much improved. Its a 2 min job and the part is about £12.
The TVR has recently had a full service and MOT etc and was given a great bill of health by the garage. My question is when driving in town where I would normally change from 2nd to 3rd at say 20 ish mph in the Porsche, the TVR seems to drive a lot better if I keep it at 2.5+rpm (Leave it in second and just let it rev a little higher). It has a slightly rough feel too it if I let it pull on very low revs. Where as the Boxster just tootles along.
Is this something that I could look in to in terms of it needing something doing or is it just that the two cars engines are very different?
Cheers
I had this problem on my 4.0 Chim. Read on a previous thread that changing the coolant temp sensor would help. Did this (Lucas part no SNB802) and low speed town driving much improved. Its a 2 min job and the part is about £12.
Quietlybonkers said:
My bog (in this weather) standard 4.0 is like that too James........bit burbly at low speed, prefers second to third. Burbles even more when the number 8 (rear offslide) plug lead comes off.
If Peter is reading this, how expensive is it to have a longer fifth gear fitted, please? My Chim is at 57mph at 2000 rpm in 5th - my diesel Saab is doing 85 at 2000 revs. Should I wait until the clutch goes, or does the gearbox come out easily for an expert? I have Mat Smith on ratchets, and he says he likes proper jobs like taking gearboxes out.
Mines doing 57 @ 2K as well!If Peter is reading this, how expensive is it to have a longer fifth gear fitted, please? My Chim is at 57mph at 2000 rpm in 5th - my diesel Saab is doing 85 at 2000 revs. Should I wait until the clutch goes, or does the gearbox come out easily for an expert? I have Mat Smith on ratchets, and he says he likes proper jobs like taking gearboxes out.
Speak to John Read re 5th gear, 07799117211.
http://www.readmanracing.co.uk/
Yes, but in normal use you wouldn't use 5th gear unless cruising in the TVR (motorway or dual carriageway). IMO It would just be more restful to be at 2000 rpm cruising at motorway speed, not 3000.
I find myself on A roads cruising in traffic quite often these days. I noticed the difference last night on a 60 mile cruise down the A1 in the dreaded diesel Saab (averaging 52 mpg). I didn't buy a TVR for fuel economy, but a bit of same when not having grin enhancing fun wouldn't be such a bad thing, would it?
I find myself on A roads cruising in traffic quite often these days. I noticed the difference last night on a 60 mile cruise down the A1 in the dreaded diesel Saab (averaging 52 mpg). I didn't buy a TVR for fuel economy, but a bit of same when not having grin enhancing fun wouldn't be such a bad thing, would it?
Hmmm, personally I feel the thing is just getting into its stride @3,000 and it sounds really contented cruising at that engine speed, 2000 rpm is alright but I feel it's less than completely happy much below that on the tiny throttle openings you need for cruising. 50 mph is the threshold where I prefer downshifting into 4th if I need to be at that speed for longer than a few seconds, you'd take that point to 75 mph. I'd say you would need a dull Range Rover cam in it if you want to drive the car like that.
Quietlybonkers said:
I didn't buy a TVR for fuel economy, but a bit of same when not having grin enhancing fun wouldn't be such a bad thing, would it?
How many miles would you have to do to recoupe the cost of any change to the rear diff or Gearbox.If you get 25mpg at the moment and you could get it to 30mpg, after mods, then that saves 4p per mile, so if the cost was £200, for the mods, then you have to do 5000 miles at 30mpg to get the cost back, so maybe over a couple of years you might recoupe the cost.
haircutmike said:
Anthony, you probably have the standard diff, there was a higher ratio option which I believe I have, (hence the paltry 12.5 1/4 mile 
).
If it doesn't rain, I'll check mine later and see the differance.
Think your better off with the higher ratio down the 1/4 mile.).If it doesn't rain, I'll check mine later and see the differance.
Mine seems to run out of steam ,i feel the need to put it in to 5th..
Gassing Station | Chimaera | Top of Page | What's New | My Stuff