Rampage MT A Little Pep In Step

Dusty

Well-Known Member
Messages
84
That 813 is a carb best for top end speed for racing from what I’ve read and seen on YouTube. The exciter pump drops extra full drips at high rpm ... not sure what you run your rig like but most info I’ve seen is 990 or 1107 performance carb for typical bashing and ripping .
 

Phill

Well-Known Member
Messages
2,127
Location
Yeppoon QLD Au
That 813 is a carb best for top end speed for racing from what I’ve read and seen on YouTube. The exciter pump drops extra full drips at high rpm ... not sure what you run your rig like but most info I’ve seen is 990 or 1107 performance carb for typical bashing and ripping .
You can also give the throttle a couple of pumps to start it just like a 1:1 car
 

G-Man

Junior Member
Messages
871
Location
Pittsburgh,PA
Agreed! I think the only way around having low end bog is a better engine with more horsepower. I still have a little even after some ported head work. I am trying to fine tune the low needle a little at a time in hopes of straight up tire spin right off idle. I mean a better carb for sure will help your power output, but eliminate low end bog no
 

Kevin's xb

Well-Known Member
Messages
65
I
Agreed! I think the only way around having low end bog is a better engine with more horsepower. I still have a little even after some ported head work. I am trying to fine tune the low needle a little at a time in hopes of straight up tire spin right off idle. I mean a better carb for sure will help your power output, but eliminate low end bog no
I actually took out today and wore the front tires off of it. I have the XT tires on the way but I played with the low needle a littli today while bashing and the hesitation is gone. But now at high rpm it needs more something I need some ideas that's why I wanted the 813 carb w sealed bearings. What's you guys appinion.
 

Phill

Well-Known Member
Messages
2,127
Location
Yeppoon QLD Au
Agreed! I think the only way around having low end bog is a better engine with more horsepower. I still have a little even after some ported head work. I am trying to fine tune the low needle a little at a time in hopes of straight up tire spin right off idle. I mean a better carb for sure will help your power output, but eliminate low end bog no
I have mine idling just below where the clutch grabs (6K clutch).
Spins all 4 off the line every time.
 

pfrederi1

Well-Known Member
Messages
104
Fired the MT up today after installing the ESP race ported head on the Zenoah g320 engine I have in there. Here is a short video of some of the upgrades I have on it.
Hey G-Man I want to upgrade to a bigger air filter for my rampage MT Pro to get more air flow. If I get the HPI Baja air filter is it a direct bolt on??? I ask because i notice in ur video it points up at an angle. Is that an extra fitting or something or does that come standard with the baja air filters?

Also ill be looking for your vid on how to do that gas tank vent as well.

Thx and great video and even better looking rig.
 

Phill

Well-Known Member
Messages
2,127
Location
Yeppoon QLD Au
Hey G-Man I want to upgrade to a bigger air filter for my rampage MT Pro to get more air flow. If I get the HPI Baja air filter is it a direct bolt on??? I ask because i notice in ur video it points up at an angle. Is that an extra fitting or something or does that come standard with the baja air filters?

Also ill be looking for your vid on how to do that gas tank vent as well.

Thx and great video and even better looking rig.
Gman uses the angled Shred Stack
http://www.davesmotors.com/shreadstack-industries-shreadstack-for-hpi-baja-5b-5t.html
 

G-Man

Junior Member
Messages
871
Location
Pittsburgh,PA
Hey G-Man I want to upgrade to a bigger air filter for my rampage MT Pro to get more air flow. If I get the HPI Baja air filter is it a direct bolt on??? I ask because i notice in ur video it points up at an angle. Is that an extra fitting or something or does that come standard with the baja air filters?

Also ill be looking for your vid on how to do that gas tank vent as well.

Thx and great video and even better looking rig.
Thanks Man!!
Phill is correct. I use the ddm angled shred stack. Now the Hpi Baja filter assembly has been out of stock for some time now. The Rovan baja filter assembly is identical. I use the Rovan housing on my DR with HPI Foam filters. I feel the Hpi foams are better quality
 

G-Man

Junior Member
Messages
871
Location
Pittsburgh,PA
now this might sound dumb, but do you have to use the HPI filter with the angled shred stack?
With that particular angled shred stack yes, it is made for baja style filter assemblies. There may be other ones made for clamp on types, but I am unfamiliar with them. I like the baja filter when used correctly it is the best IMO
 

lovedr79

Active Member
Messages
28
Location
Harrisonburg, Va.
Thanks! i bought the uni filter 3". they were on sale and i have always run uni filters in all of the dirt bikes i have had. i have searched high and low for and angled stack that works with clamp on filters.
 

biggo

Well-Known Member
Messages
71
Location
USA, Baltimore, MD
Ok thanks and yeah it has great take off torque just want more from the top-end I'm gonna tinker with the gear ratios a little. I was waiting for the 2-speed to come available I want so bad.


So the narrow front make it steering better cause right now it's like the back is pushing the front. Don't like that I'm gonna probly get them exact tires and rims. Thanks buddy for info
Kevin's XB, Did you ever get that 2-speed? I've tinkered witht he gears and just not impressed. The factory gearing appears to be the best configuration aside from switching altogether.
 

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