Mopar Muscle Association UK

I just have a feeling that there was a reason for making a leaf spring from several leaves instead of just one thick one. Maybe monos snap more easily?

I dunno.

But in the very long history of spring making they must have tried it several times.

Whatever happened to those composite material rear springs that were going to be the mutts nuts years ago?

I think I would give the mono leaf springs a bit more time on the market before committing to them myself.
However if I really needed a pair of new springs I would be very tempted to try them. Mainly because of the price Neil can supply them but also because of the cool factor. At that price they are worth a go.

But I really can't fault my old springs. They work very well at my power/weight level.
Mine are made from British steel. But if melted down Toyota steel is as good as the cars it came off I would be very pleased indeed.

"But if melted down Toyota steel is as good as the cars it came off I would be very pleased indeed."

you know what I mean

Monos have been around for years, been on HGVs for what 20 years now, transits and the like for about the same time.

Wil wrote:, been on HGVs for what 20 years now.

Really?

Transits use mono-leaf,there's kits around for all the old Landrovers which greatly increase off-road ability. Many HGVs are on airbags now.Didn't Corvette use mono-leaf carbon fibre springs?

Yes, monoleafs have been around on HGV's for years, 3 tonners are usually on them as were Transits before they went to coils. LDV tried composite monoleafs on the front of their vans in the '80's, I changed a snapped one once, couldn't believe how light they were! They obviously weren't up to the job as I haven't seen them on anything since. I agree about superstock springs, I have run low elevens on them before. Some of you might remember Farmer Ted bent the front section of his superstocks on a high nine second pass, so that would appear to be their limit, the spring is weak just behind the front spring eye because it is just one single thin leaf at that point.

The age thing is the problem here obviously, and manufacturing changes and cut cost engineering, as most companies are run by accountants now.

I bought a pair of S/S springs off of Duncan that he had bought off of Geof Hauser that had been on Sylvia's Challenger, but they looked like new when i picked them up from Duncan, still had the D/C stickers with P/Nos on em.

And boy did the car feel nicer and run quicker with em on.

Only picked up 1 1/10th but i was taking it easy launching as they were only fitted that morning and was getting a feel for them,
other problems during the day stopped me launching harder to really work them.
Getting the pinion angle dead right helps lots too in many ways.
Go check it.

They Run 8.50's on DOT street tyres ("Street" is a loose term for these tyres) that are 10" wide. in the Fastest street car in the U.S.
To a certain extent wider (more grip) is better....but there is a limit on a street car for drivability, especially in the wet as this enhances Aqua plaining and tram lining.

I have run a 1.47 60 foot and mid tens with only XHD Mopar leaf springs (not super stock), pinion snubber & a nine inch slick.

Having said that when I tried upping the jets to 210 a couple of weeks ago the car wouldnt go straight so Im considering narrowing the axle just enough to get a 10 inch tyre under there...

If I do that I might as well have it braced...

Oh and a new set of wheels and slicks....

Or save me dough and buy a progrssive nitrous controller?

Tyre height is more important than width when it comes to the best "footprint". Those cars in the states running insane times on 10.5" wide tyres are useing tyres 30 or 31 inches tall.

Nick wrote:I.

Having said that when I tried upping the jets to 210 a couple of weeks ago the car wouldnt go straight so Im considering narrowing the axle just enough to get a 10 inch tyre under there...

Nick cant you move the springs inboard and roll the lips on the inner arches to clear bigger slicks.
I got 10's on the Cuda doing that

Steve,

Lips on the inner arches have been rolled in already. You could be right with the Spring relocation idea though.

Blue,

We need to talk

And talking of composite springs....
http://www.speedwaymotors.com/xq/aspx/d ... roduct.htm

Not rated high enough for my car.