Do the z10 arms comply with this rule for street prepared? this is for a 1990 honda crx si. Thanks!

Suspension rule E

Addition or replacement of suspension stabilizers (linkage connecting axle or De Dion to the chassis which controls lateral suspension location) is permitted. Traction bars or torque arms may be added or replaced. A panhard rod may be added or replaced. Methods of attachment and attachment points are unrestricted. This does not authorize removal of a welded-on part of a subframe to accommodate installation.

 

No.

 

I'd check with the SEB, but based on a protest against Marcus Meredith at the ProSolo in Oscoda, MI this year, I'd say NO. He had a similar setup (conceptually) which reduced lateral movement of the rear axle of his ESP Mustang and it was found to be illegal. They scrutinized for quite a long time before making the decision, so it's not cut and dry, but again, I'd consult the SEB to make sure before purchasing any such item.

 

The kit for the 90 crx is a replacment for the stock cross member and radius rods.
It uses the same mounting points as the stock unit did. Stock front end geometry is maintained. It could be argued as a safty issue. Our set is quite a bit stonger than the stock set up and uses rod ends and not bushings. let me know if I can be of any help.


z10eng.com

 

What was the basis of their descision? What exactly was in non-compliance with the rules? Just curious.

As for arguing it's a safety issue, that won't fly. The rules make no such provisions for safety. If they did, my CSP RX-7 would be gutted (fire), all suspension points redone (lower cg = less chance of rolling), and lexan (broken glass is bad). And I'd finally be able to hang with the CRXes.

 

Hey Z10ROB,

Sales people always make me laugh, "Stock front end geometry is maintained". Oh, and the angles the radius rods join to the Z10 front cross member are the same, I don't think so. "It uses the same mounting points as the stock unit did". Oh, and the Z10 front radius rod mounting points are not below the original mounting points. Oh and you can change suspension bushing to any material you choose, I don't thinks so.

Why don't you read the rulebook and be of some help by promoting something not so blatantly illegal in SP.

 

You can't replace any suspension arms in street prepared. The rule is there to allow panhard rods and torque arms for solid axle cars. Even then they have to keep the upper control arms in place, with hollowed out bushings. Totally ineffective for the suspension but required by rule.

 

I am curious as to how the Z10 guys, Jeff always make the claim their product is stronger than the stock Honda cross members? I have yet to see any empirical data demonstrating any reality of this statement. Just looking at the construction and materials certainly makes me question the validity of this statement. Any proof?

 

whens the last time you saw a claim in an ad with a data table next to it

 

Well, I have an OZ racing ad sitting right in front of me and it reads "Extremely light, Supperleggera 7 X 15", 5 Kg."

I guess it all depends what you spend your time reading, it's not a data table but it does provide some integrity to the statement.


[Modified by DB1-R81, 3:20 PM 12/24/2001]