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MK42Dragon

Nissan 300ZX Suspension 2X Rule

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Hi guys, so my team just finished Sebring and we felt that the suspension needed a bit of work. We have a 1986 nissan 300zx, non-turbo.

I'm trying to get some upgraded shocks for the car and ideally I would like for it to be within the 2X rule.

I saw that according to the rules "The retail price of any NEW replacement wheel, brake caliper, brake rotor (1 or 2 piece), or shock absorber that you put on your ChampCar must be less than twice the cost of a stock replacement wheel, brake caliper, brake rotors, or shock absorber that is available on-line by a nationally recognized auto parts retail chain (i.e. - Napa, AutoZone, O’Reilly, Advanced, etc.)."

 

My confusion here is that all of those retailers have wildly varying prices and I'm not sure which price to base the 2X rule from. Autozone alone has prices from $55 to $150 for a single strut.

 

image.thumb.png.6824597ccf23425c1a50ff390ec9f383.png

 

Additionally, what if the parts are not available from those retailers, such as for wheels, should the 2X rule price be based from the manufacturer website?

 

Thanks!

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2x Rule can be applied to any national retailer which includes dealer pricing (where you will typically find the Highest Price) 

 

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1 hour ago, TiredBirds said:

Go buy a Bilstien and be done. 

 

It's getting hard to find decent shocks that aren't adjustable for the Z31.  Front B6 strut insert is still available, p/n 34-002643 and fits inside 2x.  Looks like Bilstein discontinued the rear, but one of the mustang rear shocks can be used with a couple spacers on the lower shock mount. I'm not sure if its the rear fox or the rear SN95 that is longer, but you'll want the longer one.  Tokico also offers their HP (blue) shocks, but the only source I know of for them (zstore) shows them as "temporarily unavailable".  We blew out the HP front strut inserts pretty quickly (rear seems to be holding up).  Thats pretty much it, or your stuck with a KYB or other box store replacement shock which won't last very long.

 

*edit - looked it up, the Fox body (79-93) mustang rear shock is the one you'll want, 24-021487.

 

Feel free to PM me if you have any specific questions.  We've been racing this chassis for a while.

Edited by Bremsen

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1 hour ago, Bremsen said:

 

It's getting hard to find decent shocks that aren't adjustable for the Z31.  Front B6 strut insert is still available, p/n 34-002643 and fits inside 2x.  Looks like Bilstein discontinued the rear, but one of the mustang rear shocks can be used with a couple spacers on the lower shock mount. I'm not sure if its the rear fox or the rear SN95 that is longer, but you'll want the longer one.  Tokico also offers their HP (blue) shocks, but the only source I know of for them (zstore) shows them as "temporarily unavailable".  We blew out the HP front strut inserts pretty quickly (rear seems to be holding up).  Thats pretty much it, or your stuck with a KYB or other box store replacement shock which won't last very long.

 

*edit - looked it up, the Fox body (79-93) mustang rear shock is the one you'll want, 24-021487.

 

Feel free to PM me if you have any specific questions.  We've been racing this chassis for a while.

Glad we have a GM product, Parts do not seem to be hard to find at all...lol 

Edited by TiredBirds

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On 9/25/2019 at 8:24 AM, Bremsen said:

 

*edit - looked it up, the Fox body (79-93) mustang rear shock is the one you'll want, 24-021487.

 

 

Ha is that the universal rear shock? Worked great on the RX7 and I have heard other cars using it also.

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