I've got BF Goodrich P245/50 R14 's on the front, currently set at 20 psi

& BFG P265/50 R15's on the rear, currently set at 26 psi.

I haven't got a clue what they should be at.

Originally the front's were 17 psi on the N/S and 27 psi on the O/S. Both rears were set at 30 psi. I've reduced it just to see if it will stop the car bouncing around, though I feel this is more due to the suspension than anything else.

Any ideas please ??

Well I just run at 30 psi all round. Seems OK to me and I do like to wind it on :ph43r: , rarely find the need to slow overmuch for the bends. :ph43r: :blink: :ph43r:

Steve - run the rears at 28-30Psi - as you have a lot of weight on the rear of a fug-2, what with the engine and more rearvard seating position

Run the fronts at about 20/22psi, otherwise the lightly looaded front tyres of the fug-2 will be very hard and not grip the road properly, then you will understeer into a ditch/hedge/street lamp/kerb.........not good

It would be nice if it would go fast enough to understeer .....!!!

"The reward of patience is patience." (St Anthony) ^_^

20-22psi do for my fug4, do you reckon Knighty? or less even :blink: ?

When I was ranting on about winding :ph43r: it on earlier, not slowing for corners etc.... I forgot to mention that cruising speed for me is 60 mph (feels plenty fast enough). Moreover, given I've read not to load the flat-4 below 2k rpm, I gotta thrash her up to 3.5-4k in third in order to drop into top where she will pull nicely from 55ish mph @ 2.5 ish rpm.

So take heart Steve-T, all is not rosey in other gardens either.

I :ph43r: need :ph43r: more :ph43r: SPEED :wacko:

I run my front tyres at 18Psi...........I came to this figure by thrashing my fug-4 around a big fast roundabout at the end of a dual carriageway!........I found that the typical 30psi figures, caused too much wheel bumping around, with the lower pressure stabilised the front wheels and suspension, and allowed the tyre to do its job and grip the road properly......I will check what I run the rears at, I applied a similar theory.

I still need to drop my rear suspension by 1 outer spline (2") as I can feel the swing axle starting to tuck-under and raising the rear during really balls out hard cornering

knighty

Don't want to seem a killjoy, but you do know that you need to be careful about lowering the swing-axle too much, don't you? You can damage the bearings at the ends of the tubes if they run dry because they are higher than the oil level.

:(

Not saying don't do it, just be careful.

I checked my rears last night and I run them at 23psi.......front 18psi.........these are quite typical for a kit car that weighs in the region of 500Kg, so dont worry about running the pressures too low.

Mine must have 'heavy bones' :huh: as she weighed in at about 830 kg if I remember right. I have done some serious trimming since SVA but nothing like 300 kg.

Thank for data Knighty, I have a nice roundabout handy and will follow your procedure for optimisation. :D