Argh! How do I set up shocks on Procat?

[kaszal]

OK I give up... I really need help setting up the shocks in my Procat. It's been running well (transmission's holding up and even raced it a bit at Stotfold) but I can't seem to get it to handle or land right. I'm probably fighting a losing battle (I'll probably get a modern car next summer) but I'm sure I can get it to handle better.

I'm using the Tamiya aeration buggy dampers, which are the same as on the 501x and DB01-R. I'm using the bleed caps. The problem with the front of the Procat is the shocks are very layed down and there's virtually no adjustability. I've removed the anti-roll bar so I could move the lower shock mount out. I've had to use No.2 piston and 60wt oil just to firm it up and stop it bottoming out... but it feels odd. Using black Losi springs at the moment.

At the rear I was using No.4 piston and 40wt oil. Losi yellow or pink springs. The rear is bottoming out after jumps and bending the rear wishbone carrier bolt. I've just changed the piston to No.3 with 30wt oil.

Has anyone else experienced this frustration? Anybody remember how they set up their Cat or Procat? Any help appreciated. Cheers

[discostu]

if you cut the schumacher ball cup down and use a raised spring cup and spring the fit the shocks for example tamiya or ae spring you should be ok also the what tamiya piston do you have are they the ones that come on the molded spru or the proper teflon ones that come with the worlds edition 501 the spru ones dont fit the bores very good.

[kaszal]

Thanks for your reply. I've got the cnc pistons from the TRF hop-up kit... yes, they smoother than the ones on the sprue. I have to use Losi springs and cups because I'm using I&Q dirt shields. I doubt the make of spring is the issue (I've compared them on the Excel chart... unless I'm missing something) it's more the choice of piston, oil and spring stiffness.

[discostu]

Originally Posted by kaszal

Thanks for your reply. I've got the cnc pistons from the TRF hop-up kit... yes, they smoother than the ones on the sprue. I have to use Losi springs and cups because I'm using I&Q dirt shields. I doubt the make of spring is the issue (I've compared them on the Excel chart... unless I'm missing something) it's more the choice of piston, oil and spring stiffness.

they are too long so you end up putting too much pre load.

[dodgydiy]

i know the xls wouldnt handle very well without anti roll bars so try and get it back on there, if i remember correctly the front end is very similar. if its bottoming out landing try smaller holes in your pistons

[Stretch]

Also, fit some stiffer springs if you want it to stop bottoming out. There are only 5-5.5 turns on the Schumacher springs, so the ones you have on in the pics are far too soft. BTW, those Schumacher springs were designed to be used with anti-roll bars, so I'm not surprised you car doesn't work too well...

HTH