Mugen MTX-3

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Old 12-21-2003, 01:53 AM
  #9331  
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Originally posted by spawn
I need help with the centax!. what are the adjustments you guys use on the centax? I am currently using .6mm. I find that the engagement is too soon. Also is it better to change to harder springs and the red clutch pad?? it is a bit difficult to drive when the clutch engages too soon.
0.6mm on the clutchbell doesn't matter anything for an early clutch engagement, but will harm your thrust bearing, better to use less (between 0.3 and 0.4mm). If you want to get your clutch engages later, you need to tighten the spring that preloads it.

Getting the Extra hard spring has proven to see a very improvement on the clutch, but sometimes, the stock spring is fine for low traction conditions. But first of all tighten that spring (go in 1/4 turn improvements) and see if improves
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Old 12-21-2003, 01:59 AM
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Originally posted by Corse-R
0.6mm on the clutchbell doesn't matter anything for an early clutch engagement, but will harm your thrust bearing, better to use less (between 0.3 and 0.4mm). If you want to get your clutch engages later, you need to tighten the spring that preloads it.

Getting the Extra hard spring has proven to see a very improvement on the clutch, but sometimes, the stock spring is fine for low traction conditions. But first of all tighten that spring (go in 1/4 turn improvements) and see if improves
I am refering to the clutch spring cover from the end of the clutch nut and not the gap. Anyway will try tightening it 1/4 more.
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Old 12-21-2003, 02:02 AM
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Originally posted by spawn
I am refering to the clutch spring cover from the end of the clutch nut and not the gap. Anyway will try tightening it 1/4 more.
.6mm on clutch spring cause early engagement make more sense. stiffer spring will sort out the situation or you may just tighten the spring a bit.
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Old 12-21-2003, 02:21 AM
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I run on a med-high traction track and run:

Spring adjustment: 0.95cm with standard spring
Clutch bell gap: 0.3cm

Hope this helps

Last edited by MTX-3 Kid; 12-22-2003 at 03:54 AM.
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Old 12-21-2003, 04:18 AM
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Can you help me which screws are the bump stops and which the rebound stops?
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Old 12-21-2003, 05:00 AM
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Originally posted by Speed De
Can you help me which screws are the bump stops and which the rebound stops?
bumpstops???? seeems that you're mixing many things related to geometries in the car, let's see if we can dissect them and give more light.

- Bumpsteer: Is an involuntary effect created on the steering due to the travel of the front suspension that varies the angle at which the wheel steers. If a car is well designed and all their measurements, this effect should be minimum. Basically affects how stand the car in the middle of a turn, where suspension compresses and moves.

- Rebound stop???: Probably you're referring to the upstop adjustment. On the front of the MTX3 are located in the holder of the rollbar, are a pair of grub screws that screws from the side view and push the front bulkheads, limiting the uptravel of the suspension.

On the rear suspension, are a pair of grub screws who are adjusted from the ground view of the car (are the rearmost holes on the arm). Better to not mess with them too.

Is from general advice (and myself, too) to not mess with those screws if you don't have a grasp on what are you doing, in fact, you're limiting the suspension on their compression movement, thus reducing the ability of absorbing irregularities from the track. This adjustment if done, should be revised depending on the diameter of the tyre you use and changes as you start to wear the tyres (foams, of course).

Sometimes, bump stop is referred to the difference in the suspension travel where you adjust the droop, and how much compresses the weight of the car the suspension, this allows some 'uptravel' portion of the suspension, is the same effect than on a fullsize car when turning, the suspension expands to keep the wheel on the ground when the body leans to the outwards of the turn.

Hope this can solve your doubts, of not, please refine your question.
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Old 12-21-2003, 07:57 AM
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Originally posted by freefallgirl
Hello boy's.. Just wanted to say Happy Holiday's to you all...
FFM is still in Iraq so please say a prayer for him. He's been gone for 20 day's and i still havent heard from him. Wish you guy's a great New Years too! Semper Fi !! R.
glad to hear that FFM is going back home now. he did a great job.

Can wait to meet you guys next month !!!
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Old 12-21-2003, 11:32 AM
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Rebound stops and bump stops arew written in the MTX3 set up sheet so thats why i'm asking.
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Old 12-21-2003, 05:46 PM
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I have seen the 16/19 belt set up on e-bay. Do you put the 19 on the front and the 16 on the rear? How does this effect the over all gear ratio? How much does it give or take away from the car on a big track (240x185)?

I only run big tracks and the idea sounds good of over driving the front. I just am not a math wizard to figure out how this will effect the grear ratio on a big track..

Thanks for the help.

Joe
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Old 12-21-2003, 06:08 PM
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Originally posted by init2win
I have seen the 16/19 belt set up on e-bay. Do you put the 19 on the front and the 16 on the rear?
Yes.

There is a link to a program to help with the math but I can't find it at the moment.

Last edited by EVOLUTION; 12-21-2003 at 06:13 PM.
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Old 12-21-2003, 06:18 PM
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Originally posted by MTX-3 Kid
I run on a med-high traction track and run:

Spring adjustment: 0.95mm with standard spring
Clutch bell gap: 0.3mm

Hope this helps
okay will try it out. are you using a digital caliper? I find it hard to measure using the std caliper, too small a gap!. I aslo changed the bell gap to 0.3mm,it used to be 0.5mm.
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Old 12-21-2003, 06:24 PM
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Originally posted by init2win

I only run big tracks and the idea sounds good of over driving the front. I just am not a math wizard to figure out how this will effect the grear ratio on a big track..

Thanks for the help.

Joe
Hey Joe!

Maybe this will help with your math skills.........

http://www.stsrc.com.tw/info/ratio.zip
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Old 12-21-2003, 06:24 PM
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Originally posted by EVOLUTION
Yes.

There is a link to a program to help with the math but I can't find it at the moment.
it is here. you forget things fast.
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Old 12-21-2003, 07:05 PM
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Thanks for the responses.

Joe
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Old 12-21-2003, 08:12 PM
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Originally posted by Manticore
it is here. you forget things fast.

Thanks man,it's a hot and stinking day down here is that a good enough excuse?

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