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Polyurethane Or Solid Subfame Bushes

MIdnight_R33
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Checkbuzz Rising Star

Checkbuzz

Posted
Posted

From my experience:

Poly Pineapples = Easy to install; reasonable improvement (when set for minimum compliance not squat or drift) in axle tramp and handling with no extra NVH

Alloy lock bushes = Easy to install; major improvement in handling, no axle tramp with a little more NVH

Solid Alloy bushes = No compliance, you can't get any more solid than solid. NVH will be much worse than above but if it is a track car who gives a sh1t

Go the solid alloy bushes for the ultimate drift/track solution but you do have to drop the entire rear subframe out of the vehicle and getting the old bushes out and the new ones in is a pretty big job (press fit).

I'm running the alloy lock bushes and they are a big improvement over the poly pineapples, cheaper and just as easy to install.

I have some (barely) used poly pineapples for sale ($50) if you want to try them out

BOZ22N Grand Master

BOZ22N

Posted
Posted

I run solid subframe bushes in my R33 they work well and you can adjust the subframe as you require. They were a massive pain to install and I am still in the set up stage and learning what does what. I would recommend the easy fit alloy lock bushes but if you have the time and want to play fit the solids but just remember you can stuff the handling the wrong way also and it will take a fair bit of work to get it back to what it was before.

Check my build thread if you want pics of mine.

Good luck.

Risking Grand Master

Risking

Posted
Posted

Solid is not always the best way to go.

A stupidly stiff and solid chassis can be a nightmare to create latitudinal grip with.

It comes back to what sort of compliance you have in the control arms (believe it or not arms should be designed to have a "tuned" amount of dynamic flex.) bushings/rod ends etc.

Iike Ryan said and has probably discovered it's far easier to go backwards than it is to go forwards alot of the time.

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