I'm told 2 and 3 way Motons are legal in the stock class? Where can I see some pricing on different choices?

Thanks

 

Moton and JRZ, and other brands of adjustable shocks are legal in stock. But if i am not mistaken, they do not make the shock absorber inserts for stock Boge or common Bilstein front strut assemblies (preserving the stock suspension geometry intact). Most guys I know who run adjustable shocks on their 911s in D/E/F stock, run them in the rear only and run custom valved Bilsteins in the front. Koni may have something for the front, but I am not sure (you may want to ask flatsics aka Doug Crossman about that)

I had a Moton Clubsport suspension installed on my 04 GT3 and did my pre-purchase info gathering on that brand by calling Lex at Moton USA (770 886 8777).

Fred

 

So Motons on front would require an illegal strut assembly? I've only heard of one guy with them in the old G class, not sure if they were just rears or not..

 

Or expensive machining to replicate the stock struts and therefore run with a stock suspension geometry. I would confirm with Lex whether Moton now makes front shocks that fit into stock Bilstein strut assemblies (if I remember the underbelly of your car, that is what you have ). I know that Moton and JRZ do not make the strut assemblies themselves.

 

i believe that as long as you mechanically lock them into position of stock geometry you're ok.

does fox have something for the front?

i have a set of ohlins inserts for the front and threaded body for the rear but the fronts don't clear the strut mount so i'm not using them. long story.

 

how big an advantage would having the adjustable shocks be with our cars?

 

Sort of story you could get into with Moton as well Gary.

 

Not sure. It gave me 9/10ths of a sec on a 1m35sec track in my GT3... I would instead go for a bump steer kit if it were legal.

 

JRZ will make you strut bodies with the stock geometry. I have a set of used double adjustable JRZ stock geometry front struts of a PCA D class racecar that I have been planning on using on a car I'm building. I don't want or need the stock geometry struts though. The way the spindles are welded and gusseted to the struts would make it very hard or impossible to raise the spindle myself without damaging the strut body.

I'd gladly trade them for a set of DA Moton or JRZ struts with raised spindles. I would also sell the ones I have but only if I got enough $ so I could buy similar replacements with raised spindles without adding too much of my own $. JRZ said they would exchange them for new shocks with raised spindles but the difference in price of around $1200 per shock was too high to make it worth it in my opinion..

 

The only place I saw prices listed on line was HRPworld.com. The DA Motons for a 911 required you to send in your own spindles and the price for a full set was around $6k if I remember right, I'm not sure if you could specify the spindle height and camber though..

 

Gary, When I ran in D, I only knew a couple of people with the rears, and they were Fox. They do have a set up for the front, but not legal in stock class.

For a good write up on torsion bar setups, read the September 03 Excellence, they progress from stock to the Fox shocks and new springs and show the differences in performance.

Sean asked the right question. The expense is quite high for these cars and class. I would venture to say that if someone was good enough to get the last tenths out of these shocks on a torsion bar car, then they would probably be good enough to dominate the class without them anyway.

 

At $6k for one tenth I know it would be far better for me to spend the money on a personal coach and race schools. From those I could expect several seconds off my miserable lap times.

I'm thinking about having my Bilsteins re-valved to change the rebound but not until I have played around with my current setup some more.

 

I have the JRZ double adjustables. I got the rears before last season. The fronts are going on for this season.

For the fronts, you need to supply donor spindles. They can make the fronts with whatever geometry you want (e.g., stock spindle height for stock classes).

Get in touch with Steve Weiner at Rennsport Systems - he's da man! (He may also have donor spindles available).

 

Oh yeah - the Fox shocks are now legal for the front if you tack weld them so that the spindle height is the same as stock.

 

Sounds like you are ripe for some quality time with the scrutes