what pressures do you run front and rear?
what pressures do you run front and rear?
Author
Discussion

mnrvortxf20c

Original Poster:

430 posts

177 months

Wednesday 15th August 2012
quotequote all
what tyre pressures are you guys running front and rear for road use?
ive not checked mine yet as ive only had the car a week but they feel very hard compared to others ive used!
205/60/13 rear 185/60/13 front TOYO R888

Dorchester

82 posts

194 months

Wednesday 15th August 2012
quotequote all
18 psi all round. Really comfortable on the road and just pump up to 35 psi for track use. At least it suits me and I've done a couple of hundred thou' miles in my 7 over a great many years...

Steve Campbell

2,391 posts

197 months

Wednesday 15th August 2012
quotequote all
18 psi all around for road and track...if you use 35psi on track your likely to a) have little traction and b) wear out the tyres in the middle quickly

grenpayne

2,082 posts

191 months

Wednesday 15th August 2012
quotequote all
I run 18psi on the road on 13" CR500, but I thought you were supposed to run 16-17psi on track due to the higher temperatures?

subirg

772 posts

305 months

Wednesday 15th August 2012
quotequote all
17 psi front and 16.5 rear when running zzrs or cr500s.

dsl2

1,484 posts

230 months

Wednesday 15th August 2012
quotequote all
35 psi yikes!, you are kidding us right?

18psi road use two up & 16 psi for competition use on Kumho's.

Aeroscreens

466 posts

255 months

Wednesday 15th August 2012
quotequote all
Yoko 21s for road use, 16/17psi. Kumhos for sprinting 15/16psi. Same for front and rear.

mnrvortxf20c

Original Poster:

430 posts

177 months

Wednesday 15th August 2012
quotequote all
sorry but i am not in a position to be able to afford 2 sets of wheels and tyres,
it will have to be r888 for roads and hills unfortunately.

radical78

398 posts

173 months

Wednesday 15th August 2012
quotequote all
on track start about 16/17 cold shoud be 20psi when hot

Roadru77er

473 posts

224 months

Thursday 16th August 2012
quotequote all
18psi 185/60x13 Yoko 21's on the road here.


Dorchester

82 posts

194 months

Thursday 16th August 2012
quotequote all
Ooops - typo there - meant 25 psi and also forgot that most 'modern' Caterham's appear to be running on rubber bands whereas I'm running 205.60's on 13" rims so have lots of sidewall (and loads of movement if there's not enough pressure). Should've mentioned that at the time, oh well.

Dorchester

82 posts

194 months

Thursday 16th August 2012
quotequote all
Ooops - typo there - meant 25 psi and also forgot that most 'modern' Caterham's appear to be running on rubber bands whereas I'm running 205.60's on 13" rims so have lots of sidewall (and loads of movement if there's not enough pressure). Should've mentioned that at the time, oh well.

CraigyB

209 posts

280 months

Thursday 16th August 2012
quotequote all
Blimey, I run yoko 48s on track, and the keep to 17 psi all round when hot. After cooled down, they are usually closer to 14 psi, but vary from corner to corner and different for different tracks

http://www.youtube.com/watch?v=mNKBZBDL89w&fea...

Mach 7

67 posts

175 months

Thursday 16th August 2012
quotequote all
18 cold front and rear for road.

18 hot front and rear track.

coppice

9,698 posts

173 months

Friday 17th August 2012
quotequote all
When I Carcoon mine for the winter (yeah- wimp etc ) I get the tyres inflated to about 40 psi to stop any tyre deformation over the winter slumber.If you think the steering on your Seven is quick you wouldn't believe how light and 'hyper' it feels at 40psi. Ride's a bit ..errmm .. firm , mind

one eyed mick

1,189 posts

190 months

Friday 17th August 2012
quotequote all
coppice said:
When I Carcoon mine for the winter (yeah- wimp etc ) I get the tyres inflated to about 40 psi to stop any tyre deformation over the winter slumber.If you think the steering on your Seven is quick you wouldn't believe how light and 'hyper' it feels at 40psi. Ride's a bit ..errmm .. firm , mind
You would be better putting the car on axle stands or blocks than boosting pressures , my personal ops

Smollet

16,365 posts

219 months

Friday 17th August 2012
quotequote all
18psi with CR500. In winter if I haven't used the car for more than a couple of weeks I just roll it back a foot or so. Saves pumping up tyres or putting on stands.

alanplumbridge

18 posts

209 months

Friday 17th August 2012
quotequote all
16psi rear, 16.5 psi front when cold so they all heat up to 18psi when they're hot.

coppice

9,698 posts

173 months

Friday 17th August 2012
quotequote all
one eyed mick said:
You would be better putting the car on axle stands or blocks than boosting pressures , my personal ops
You are not the first to say that but after 15 winter sleeps with no ill effect at all I am ok about it- and of course it's so little weight per corner compared to anything else.