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Old 07-07-2002, 02:14 AM   #16
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Originally posted by Novarossi

Same gearing yes, but I doubt it runs the same drivetrain gearing
It is not that much different believe it or not.
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Old 07-07-2002, 10:10 AM   #17
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i believe the impulses are running vector 1/8 gearing with the 1/8 centax clutch as well. maybe for a big track, you need those gears to work. but for smaller track, those gears are useless and super heavy!!!. I know that because i'm using it.

i drive an impulse pro but the mugens centax clutch looks lighter and smaller = less weight. most of the people i know, tells me i drive a tank, because its heavy-----duty as well.


maybe mugen mtx2 can use its big brother mrx3 gears?

serpent vector stock 1/8 gears 16/19T 45/48T

hope it helps.
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Old 07-07-2002, 01:57 PM   #18
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Originally posted by tekrsq
I think Mugen had other problems besides gearing. Basically, it just wasn't their day. Sometimes things just happen.

Now, having said that & I'm not making excuses or taking sides, the MTX-2 does indeed have a gearing issue. I sent several emails to Mugen regarding this issue when I first bought my car over 2 years ago. They basically told me the car was designed for 1/10 tracks, not 1/8th. I occasionally raced at a track designed for 1/8 th scale cars. The track had a 350ft backstretch that absolutely killed my MTX-2. I ran out of gear WAAAY early. Now I admit so did most of the other 1/10 sedans, but the MTX's peaked much earlier than the RS4's and Impulse's. The best final drive ratio using "optional" MTX gearing is 5.16 using 21/43 2nd gearing. If you go aftermarket, there are some spurs and pinions that will let you get a 4.63 using 23/42 2nd gearing. Compared to the RS4 that can be easily outfitted with "optional" 20/37 2nd gearing that yeilds a FDR of 3.97. While the MTX will out handle the RS4 through the infield, there is no way to keep up in an all out drag race. If the RS4 gets enough distance out running it down the backstretch, it's very hard for the MTX to regain that ground. I can't remember off the top of my head what FDR are available for the Impulse, but it was better than the MTX also. This was the days before the GT-4, VoneR, OB4, etc. If anyone knows the FDRs for those cars, we could do a better comparison of what's on the market today.
The Impulse PRO with the stock Centax gearing (i.e. 16T/19T pinions and 48T/45T spurs) would have a final drive ratio of 4.74.
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