# Spring rate different from sohc to dohc?

**URL:** <https://forums.speedlife.net/t/spring-rate-different-from-sohc-to-dohc/126049>\
**Category:** SON240sx Automotive\
**Created:** [July 7, 2009, 12:50pm UTC](https://forums.speedlife.net/t/spring-rate-different-from-sohc-to-dohc/126049 "2009-07-07T12:50:02Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\
**Post date:** [July 8, 2009, 5:58am UTC](https://forums.speedlife.net/t/spring-rate-different-from-sohc-to-dohc/126049/8 "2009-07-08T05:58:21Z")

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> [@My CJ @ Tift (first mudd trip video)](https://forums.speedlife.net/t/my-cj-tift-first-mudd-trip-video/22952/13):
>
> The spring rates should be different in the HICAS equipped 91+ car because there was supposedly a “sport package.” My car has HICAS and the shocks & springs are pretty stiff for a stock car (still lots of bodyroll however). I’ve been in an 89 base model coupe and it felt so soft relatively. Maybe it had bad shocks, who knows.
> 
> Some other notable differences: The seats are monoform buckets on the 89-90’s, while the 91+ have an adjustable headrest + lumbar support (on my leathers :)). Also, the steering wheels are different. One more thing I’m not 100% sure on is that the 89-90 240SX does not have a consult port, but it can be wired in later if need be.
> 
> I have never owned a SOHC S13, so take what I say with a grain of salt.

100% true. Minus the consult. All S13’s have the port. Probably even S12’s.

Did the 89-90’s come with O.E.M spoilers ever???

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