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R 33 Gtr Upper Arms On A 32 Gtr, Doable?

Petter 900 T
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Petter 900 T Apprentice

Petter 900 T

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Got an R 32 GTR, and I have noticed that the 33 GTR have much better suspension...

Is it possible to fit the upper arms from a 33 to my 32?

If so, will the geometry still be good?

Pics and/or drawings would be great!

Track only, don't have to be road legal...

Petter

Duncan Grand Master

Duncan

Posted
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you mean front upper arm right? because rear is the same design and therefore interchangeable for upper arms.

at the front the 33/34 design is heaps better - but personally if I was going to go to the trouble of custom mountings for the arms, I would probably just go to a blank sheet design anyway - a nicely space triangluar wishbone like the lower end has. I know of at least 2 cars that have put full custom suspension in the front, Mark Berry's 34 and Brad (Risking)'s 32.

bigmikespec Veteran

bigmikespec

Posted
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I would probably just go to a blank sheet design anyway - a nicely space triangluar wishbone like the lower end has. I know of at least 2 cars that have put full custom suspension in the front, Mark Berry's 34 and Brad (Risking)'s 32.

Do they use completely different pick up points and re-designed subframe? I would love to do something like that, especially something to replace the super heavy upright (knuckle), I thought about getting them made (either cast or machined) from aluminium but either way would be expensive!

Petter 900 T Apprentice

Petter 900 T

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Yes, front.

If the inner fenders and whellwells are looking almost the same, I hoped for Bolt-on, or not too mutch velding...

But that is too mutch to dream about?

The car is race only, but class regulations states that it is supposed to be in street-legal shape. So custom is out. "bolt-on" is ok.

Petter

Sydneykid Grand Master

Sydneykid

Posted
Posted
Yes, front.

If the inner fenders and whellwells are looking almost the same, I hoped for Bolt-on, or not too mutch velding...

But that is too mutch to dream about?

The car is race only, but class regulations states that it is supposed to be in street-legal shape. So custom is out. "bolt-on" is ok.

Petter

What class?

Cheers

Gary

Petter 900 T Apprentice

Petter 900 T

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Posted

I race at "Gatebil" in Norway, and some other races that have national regulations in Norway.

cars competing are divided in classes depending on if they can be licensed for road or not, and I will race in the category "can" for as long as possible. (easier to win...)

i was Norwegian Champ in 2006 with a different car, trying to get the funds to win again in 2010!

Petter

Risking Grand Master

Risking

Posted
Posted

nothing other than R32 arms will bolt straight in.

It would be possible to make the R33 uppers fit and use the R33 upright etc but I dont think it would be feasable.

The best way around it as duncan said is to use a completely custom upper control arm set-up that elliminates the massive upright and terrible upper arm. The other adavantage is you can fit some good sized wheels on the front. Up to 12 inches wide if you want to push the friendship a litte with the factory guards.

The front craddle is okay it just needs some mounting points welded on for the new lower control arm and away it goes.

There is no point doing all this work if your not going to buy software and redesign the front geometry, it can be so much better than it is but it does take alot of work.

Hence my move to a space frame car which has no limiting boundaries other than the ones I create.

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