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Old 31-03-2015
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stucartwright stucartwright is offline
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Default GT12 Help..

Hi Chaps
A couple of questions about GT12 if I may

I ran for the first time last night at a meeting; my overriding issues were as follows, if anybody can shade any light.

Steering was extremely sensitive, front end digging in and making it a touch lively with the back end; Is this toning down the sensitivity of my steering dual rates? What do people have theirs set at generally? I also went harder with my suspension on the rear, mistake, softer was better!

Secondly, my diff/pinion mesh seems to make a slight grinding noise, but can't seem to figure out what it couple be? Could this be a bent drive shaft possibly? It seems to grab/grind at a certain point if I push along un-powered.

Any help or advice is greatly appreciated in advance.

Best Wishes
Stuart
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Old 31-03-2015
SlowOne SlowOne is offline
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Stuart, can you tell us what the car is and what the current basic setup is you have on it?

There may be many things so knowing what you have started with will narrow it down... a lot!

GT12 cars all handle well and are great to drive once you have the setup sorted. Give us a bit more info and we'll have you going in no time.
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Old 01-04-2015
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Sounds like an SSGT.

Go to 50 front tyres and yellow rear springs. And reduce droop to 1mm all round.

The kit spurs aren't very true. Set your mesh at the tightest point on the spur so there's just the smallest amount of play. Or replace with one of the machined spurs.
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Old 01-04-2015
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Join the gt12 circuit UK Facebook page loads of info and help on there too 1500 + members
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Old 01-04-2015
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First up, I'm not on Facebook. Maybe one of only a handful who are not!!

Thank you guys for your replies...
I have ordered 50's for the front, and i will definitely apply the suspension change.

Regards to the setup I have;
I have hopped up the side damper conversion kit, but that's about it.
I had stuck with the standard setting that was applied when I built the car. When softening the suspension before the car definitely handled better, stupidly I went harder on the back during the meet and it definitely got worse. Stupid boy!

What I noticed with other cars was, a distinct lack of body roll which inspired me to harden my suspension at the time and other cars seems to have an element of drift of all for wheels during cornering.

The other question would be the amount of break people apply to their ESC, I have relatively little set (Toro 1s ESc) and I barely used as I suspected it would make it even more tail happy!

Look forward to your thoughts chaps.

Best Wishes
Stuart
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Old 01-04-2015
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The harder tyres will reduce your body roll (as the car will slide rather than roll).

Other major factors are ride-height (3.5 to 4.0mm depending on how bumpy the track is) and body height (see if you can trim the shell at the bottom and lower it on the posts).
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Old 01-04-2015
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Quote:
Originally Posted by stucartwright View Post

The other question would be the amount of break people apply to their ESC, I have relatively little set (Toro 1s ESc) and I barely used as I suspected it would make it even more tail happy!
If you mean 'drag' brake, then Non.

With today's rotors it's not needed. If you still have to much just reduce your end point from 100% to 95% and so on until you find how much you like for a given track.
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