MVP gearing?

[Jason_R]

I just got a MVP and what gearing should i use in my XXXT? And what are your dyno numbers? Thanks

[NOVAK_FAN]

Generaly speaking with any of todays stock motors depending on what type of track you are running on tight twisty or alot of long straights you would want run either 19, 20, 21 tooth pinion with the stock spur gear. Good luck. :D

[mavrick0611]

JASON TOTALLY IGNORE WHAT NOVAK FAN JUST SAID.

in a TC with a 72 tooth pinion. You should use a 27tooth pinion MINUMUM. you can use all the way up to 31 tooth but the higher the hotter it gets.

i use a 20t pinion on my 10turn double motor, and thats its maximum pinion size. if 20 tooth is max for a 10t, theres no way it would help a stocker at all...
aj

[staggsracing]

Maverick, he is talking about an offroad truck. Novakfan is pretty close. I run an 18 pinion with an 87 spur on my T-3 with an MVP and it works great! Better that the P2K's that I race with.

[Grizzbob]

Ok, I think it's time I threw in my 2 cents. Jason, it really depends on how your particular MVP is running, some of them are really good torque monsters & others run more like the older Rage-type motors, & you'd have to gear both types differently. If yours is putting out good torque & power(like the way I tune my MVP's) then I'd gear your truck about the same as you would a P2K. If it's softer on torque, though(like the Rage) then I'd gear it more like you would a Rage, but maybe a pinion with one or two more teeth. In the end, you'll have to figure out the ideal ratio for yourself since your track will be different from most all others(& different sizes & layouts of tracks require different gearing to make the most of your motor), but the recommendations I gave you should at least get you in the ballpark, & you can fine tune from there.... :)

[ovalmanpa]

The guy asks about gearing for a XXXT with 2.43 gearing that will more than likely be used offroad and you tell him to completely ignore a guy (that appears to know what he's talking about) and give him gearing for a TC that has a 2.50 gear ratio and will be run on pavement?????

I don't know how you figure comparing those two will solve the problem but........

Jason, you'll want to follow the gearing recommendations of Novak Fan for your truck. A MVP is generally considered a "high RPM" motor so with a stock 88 tooth spur gear your probably going to want to run a pinion anywhere from 18-25 depending on how big of area you are running in.

[mavrick0611]

i did not know what the spur size on the xxxt was. My bad. my pinion sizes i recommended are way to tall for that type of spur.
aj

[Jason_R]

I was running stock spur with a 18 pinon gear. And my motor was geting pretty hot, i could keep my finger on the motor for about 4 seconds. Thanks

[nsane]

4 to 5 seconds is a pretty reasonable heat, you just need to be sure it is cool before the next run.

[Grizzbob]

Also, you'll need to keep in mind the MVP will run hot no matter what you do or how you gear it(mine have gotten insanely hot, but it didn't seem to affect their performance any), so if it's not burning your fingers then you're probably doing ok..... :)

[Nairb]

Man, my MVP is awesome. I gear it the same as I gear a P2K or Chrome stock in my XXXT (18/88), and holy cow does it fly. I have all kinds of torque and I still fly by other trucks on the straightaway. I love my motor(s).

Here's a suggestion. Keep using Reedy 766 brushes. Don't go to 767s; they wear the comm (and themselves) way too fast, and the power gain is tiny, if it even exists. I get huge performance out of mine with 766 brushes. These babies last forever, too. You can go a long time without cutting the comm, but I do suggest you use a comm stick on it after every 6 runs or so, because it really helps keep the performance level up (I'm seriously surprised with it).