3000m ride height
3000m ride height
Author
Discussion

youngnick1

Original Poster:

125 posts

233 months

Friday 8th August 2008
quotequote all
Having searched the various strands, I cannot find the answer to this question

What was the original ride height [ground clearance] of a 3000m measured at the front and rear out rigger?

What is the recommended height for general road use?

Regards, Alan


tegwin

1,671 posts

222 months

Friday 8th August 2008
quotequote all
Im afraid I cant answer your question, but is any of this information of any use?

http://www.tvrna.com/tech-m02.html

TaimarSE

87 posts

226 months

Monday 11th August 2008
quotequote all
TVR 3000M Owners handbook has a diagram showing the sills level with the ground at 5 inches to bottom of the sills

DavidY

4,489 posts

300 months

Monday 11th August 2008
quotequote all
Which would mean that the exhaust has less than 2" of clearance!!!

I reckon that a standard car would be higher than that. When I was sprinting/modifying mine, I did take a load of measurements, but I can't find them now, but I remember the back crossmember in front of the rear wheels being slightly higher than the front one (behind the front wheels). My car was low (as it was running a smaller rolling radius) and I did have only 3" of ground clearance on the centre box on the exhaust and yes it grounded out all over the place.

davidy

TaimarSE

87 posts

226 months

Monday 11th August 2008
quotequote all
Cant measure mine at the moment she's on axle stands with no wheels or driveshafts fitted, I stipped down on Sunday to fit new UJ's, shafts have been cleaned up and sprayed.I will be fitting UJ's soon and will measure mine,I do agree that five inches seems low and my car does sit higher at the back than the front but I only looked in the owners manual in an attempt to help.....I have just checked another owners manual that is on the TVRCC website in the archive section its an earlier manual than mine and it states that the ground clearance as 5 inches now that could be 5 inches under the exhausts,which would make it about nine inches to the sills.


Edited to put an a in driveshafts

Edited by TaimarSE on Monday 11th August 20:55

TVR_owner

3,349 posts

207 months

Tuesday 12th August 2008
quotequote all
My M sits 155 mm front, 162 mm rear (to underside of chassis rail) if that helps.

DavidY

4,489 posts

300 months

Tuesday 12th August 2008
quotequote all
TVR_owner

Is that the race car or the Turbo S? What wheel tyre sizes?

Those figures sound vagually familiar 6-6.5ins at the front

davidy

TVR_owner

3,349 posts

207 months

Tuesday 12th August 2008
quotequote all
DavidY said:
TVR_owner

Is that the race car or the Turbo S? What wheel tyre sizes?

Those figures sound vagually familiar 6-6.5ins at the front

davidy
David,
Its the race car running 15 inch wheels with what are pretty close to 205 45 profle tyres.

Works nicely just putting a little more weight over the front to prevent the understeer.

DavidY

4,489 posts

300 months

Tuesday 12th August 2008
quotequote all
OK found the details now

6.5 inches at the front, 7 inches at the rear

Tyres 205/55 on 15" front and 225/50 on 15" rear

HTH

davidy

youngnick1

Original Poster:

125 posts

233 months

Tuesday 12th August 2008
quotequote all
Many thanks for all your replies. It was interesting to note the variations and possibilities. Last night I trawled through a number of early sprint magazines and was interested to note that the same question was raised there with no definitive answer.

Alan

DavidY

4,489 posts

300 months

Tuesday 12th August 2008
quotequote all
Alan

It does depend on the spring used (especially if it has adjustable platforms), and your wheel tyre/combination, both TVR-owner and myself are using/used, a smaller overall diamter and this will have an effect on the ride height. So I suspect that there is no 'right' answer.

If it 'looks' right and doesn't ground out everywhere (usually cased by low ride height or knackered/wrong rate springs, then it will probably be ok. The geometry on the car is quite adjustable so all the camber angles/toes-ins etc can easily be set. There are some more portly owners who set the standing rear ride height higher to avaoid some of the grounding issues, I just had large skid plates all over the exhaust!

If you are worried then get the car to a specialist such as Adrian Venn, who has vast experience is setting up these cars. If you really want the car to handle then get it corner weighted.

davidy

TaimarSE

87 posts

226 months

Thursday 14th August 2008
quotequote all
Well I measured the ride height on mine to bottom of chassis rails is 172mm(6 3/4")at the front and 205(8 1/16")at the rear!!!!

My car is running 205/70/14 tyres. This is the size that the car was originaly supplied with in 1982.

I have measured the static rolling radius at 318mm

I have 3 1/2" clearance under exhaust boxes. if I drop the car to 5" as per manual I would have 11mm (7/16")clearance !!

Garry

Edited to add

If I ran TVROwners wheels and tyres I would be 2" lower all round

Edited by TaimarSE on Thursday 14th August 21:50