i want my '82 regularity rally 928 a bit higher and stiffer…. would GTS springs work ?
as i assume those are designed for a heavier car ?

anybody had done this ?

 

Whats the goal?

 

first rally with the "stock" suspension we were hitting bottom on the "off road" sections.
I see damage on front sway bar mounts , sump !... and rear bridge.
Also spoiler is touching over speed bumps.

This rally had exceptional bad and long off road sections , but there can always be such parts. Most dangerous is in the dark when you think the road is fine... till you hit a puthole.

 

You need something more significant.

Carl's kit will let you get the shocks and any spring rate you need Id think.

https://928motorsports.com/parts/com...ension_kit.php

 

thanks for the link... but i have Carl's set on my "rally" 928.... this one is for "regularity" , don't want to stiff suspension , must stay a bit "comfort" , as regularitys can be long … Average rally is 200 km , a regularity 600..800 km. Also for regularity car must stay "street legal" and pass tech inspection… adjustable kits are not allowed when not that way oem.

So i look for stiffer springs with the oem dimensions.

 

hadn't time to make a strong sump protection plate as i only bought the car 1 week before the rally.... not cleaver of me .... Ok, off roads sections were exceptional bad and long , not expected.
Lucky it's only cosmetic damage.... could have been worse.

 

GTS springs are shorter. If you want longer springs use the front springs from a 78-83 and modern gas shocks. It'll get you and extra 2 inches of travel in the front. Rears are a little longer as well but it's not as noticeable.

You can also use these https://928motorsports.com/parts/rideheightsleeves.php

It allows extra travel by giving you more adjustment over the factory adjusting nuts. You need Koni reds though. A fairly popular aftermarket shock that fits like factory.

 

Barry,

I am baffled as to how you can realistically expect a 928 to survive a rally but either way a fascinating project and wish you well.

Realistically speaking if the poor thing is going to have a chance of survival you need to get it up in the air as much as you can presumably with longer springs and/or the adjustable perches wound up as much as possible. Then of course you can also run with a higher profile tyre to gain a bit more height but you are always going to be limited if you want to avoid wrecking the block as the alternator decks out. In this regard you should have Carl's bash plates fitted as a minimum or maybe a custom version with deeper protection. By the look of it you are fortunate to have the sump still in one piece.

I run the Eibach springs that are 25% stiffer but not sure I would want to sit in the car for 200km having the crap bashed out of my spine with them on rally stages. I have done a bit of that stuff over here in my friends custom modified Range Rover and that was fun but if your regs do not permit custom setups then stiffer springs is the only way you can go I suspect.

Just make sure you have a bionic back brace!

 

thanks Blake.... but it is a '82 … so i assume to have already those "long" springs ?
I do have the Koni reds
And those sleeves would be nice… but that is gamble with the tech inspection… on paper not allowed.

 

He needs more than height on steet comfy springs for rally. He needs a ****ton of rate AND height.

 

Fred , yes , i was surprized to see the damage and very lucky the sump is still in one piece. Ok, we heard some scary bumps….

I assume your Eibach "stiffer" springs are not longer , keeping the ride hide equal as oem , just stiffer ? Or do they have options ?

 

So, what -are- you allowed to do? Lets start there.

 

sure extra height , but not to stiff rates as used on track cars.

 

to be safe... just stiffer,longer springs that fit the oem setup.

 

common sense here is at least 6" ground clearance and stiffer springs than oem. How much i don't know. 25% , 50 % ?