Excuse for new pictures...

[Guest]

I decided that Monday would be the day for car chores and sure enough it rains virtually all day, but as the sun came out for a wee bit late this afternoon, I managed to get a couple of things done and get a fill of Optimax as well.

Among other things I measured the ride height. Not something I had even bothered doing before as I always concentrated on corner balance and then just made the ride a bit higher or lower depending on how it looked. Well, the corners are nearly perfectly balanced but the heights are a little off. The RHS is 24 inches (rear) and 24.25 inch (front). Given that the front tyres are 225/45s (ie about 0.5 inches less diameter than a 205/55) this is about right. The LHS is about 24 and 24 - so its a little nose down. Frustratingly, just enough to hit the sleeping policemen unless I slow to 0mph - but it sure looks good []

RB

 

[Guest]

Kind of strangely, the car almost looks Rubystone Red not Guards. Strange what digi cameras can do.

If anyone is wondering about clearances (see previous posts) then this piccy shows it really well. On the rear, I have 245/45 on 9x16 with 2.5 degrees negative camber and 14mm of spacers. On the front, I have 225/45 on 7x16 with 2 degrees negative camber and no spacers. I have no rubbing anywhere, but this is as wide as you can go (in tyre size and track width) with these wheels and this amount of negative camber. I may revert to 7mm spacers each side on the rear as the clearance is oh so tight, but with 29mm t-bars I should get away with it.

One more thing, you can see that a 245 on a 9x16 is really stretched out and a 225 on a 7x16 is kind of bulging. YMMV as both these tyres are quite wide compared to other brands. The 225 Dunlop DO1J is as wide as a 225 on an 8x16 even though it pinched by the 7 inch rim. The 245 PZeroCs look massive IMHO.

On my brief drive this afternoon I got a big "V" sign (the friendly kind []) from a new 996 driver and last weekend a GT3 RS driver gave me the thumbs up and mouthed "perfect" to me across the stationary traffic. Colour me chuffed. It sure makes a change from being ignored by most of the new Porsche drivers.

RB

 

[Guest]

Richard

Looks good and your parking is first class!

If you've got 29's on the rear what are you running up front?

Roy

 

[Melv]

That's an excellent piece of parking Richard.

Did you measure the bumper to bumper clearances???

[]

Mel

 

[Guest]

I have 22mm t-nars on the front.

I was going to claim to be the world's best parallel parker and that reminds me of the time We came home late on a Sunday and there was only one park nearby. It looked really small so i asked SWMBO to get out and take a look at it fromthe pavement. She confidently says "Sure, no problem". Well, about 30 backwards and forwards jiggles later and I'm in the park about 3 inches from the kerb. Total clearance front and back added up to about 6 inches. Still not sure how the car fitted in and thats the last time I ask SWMBO for an opinion on car park size. Anyhow, my secret is that its my wife's A-class in front so I have to move it to get in/out when one of my less considerate neighbours parks me in from the behind []

RB

 

[ClubSport 911]

as I always concentrated on corner balance

U have the kit / proceedure for this ? - I've had mine balanced, but never seen it done, and didn't know what they use... perhaps a "talk your weight" machine from Woolies, won't cut the mustard..[]

 

[Melv]

Are you an estate agent Richard? Exagerating your dimensions again.....[]

Mel

 

[Guest]

No, and no need for that []

 

[ClubSport 911]

Found a good link on the Pelican about corner weights...(see picture) Have you have experience of how (example) JZ / Autofarm / etc do this ?

 

[Guest]

Yes, they have electronic scales for each corner and little ramps to drive up on. The scales have to be on level ground and you should add a person or some weight in the drivers seat. The read out shows each corner or diagonal cross weights or whatever scales are capable of. You measure once then make a little change - normally using the front adjusters as they are easy - then drive the car round the block so it settles and back on the scales for another measurement. It is an iterative process.

Piccy will give you the general idea. Search for "longacre scales" if you want more info.

RB

 

[Guest]

This picture is just the scales alone. I use JAZ for set-up as they do so many race cars - I think they know what they are doing. The process itself isn't hard, its just that you wnat someone who can make a good guess so it cuts down on the iterations and hence time that you pay for.

RB

 

[Diver944]

Interesting pic, I've always wondered what corner weight scales were, but in reality they are just like electronic bathroom scales (just rated for a higher weight). If you could find bathroom scales rated for 500 kg, would it just be a case of buying 4 and driving the car onto them and reading out what each weighs?

 

[Guest]

ORIGINAL: Diver944

Interesting pic, I've always wondered what corner weight scales were, but in reality they are just like electronic bathroom scales (just rated for a higher weight). If you could find bathroom scales rated for 500 kg, would it just be a case of buying 4 and driving the car onto them and reading out what each weighs?

yep

 

[Guest]

Search the net for 'Ruggles' scales.

This uses the pivot principle to let you weigh the car using just normal bathroom scales. I have started making my own set and if I ever get round to finishing them I'll post some pics.

Electronic ones would undoubtedly be easier/more accurate but they are pretty expensive. My scales cost 3.50 each from Argos [] and with a 50 quids worth of steel/iron angle jobs done (or will be one day).

Cheers

Andy

 

[Guest]

You can buy Ruggles scales from motorsport retailers like Demon Tweeks for IIRC about £200.

RB