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RE: Official HPI MT2 Thread - 5/16/2004 8:45 PM   
Steve Campbell


 

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From: Zachary, LA, USA
Status: offline 		Justin, I'm on my third truck. All have been run with "airplane fuel". My pals with the T-Maxx and Savage also use "airplane" fuel. The old myth about "airplane" fuel ruining your car/truck/buggy engine is just that; a myth.

Nitro content is not as important as oil content. Most "car" fuels have a much lower oil content than "airplane" fuel. Yes, the car fuel gives a bit more performance; at the expense of engine life and higher purchase cost. My two buddies run Cool Power 15% in their trucks; I use Omega 15%, because it has some castor. Castor, while messy, gives protection against lean runs and bearing rust that the synthetic simply cannot provide. These fuels have 17%-18% oil content. That's plenty. Much more and you'll load the engine down somewhat.

There are some "car" fuels, such as Trinity, that I hear are beginning to go with the higher oil content. Lots of guys are getting tired of replacing pistons and liners because of the low-oil "car" fuel. But every "name brand" airplane fuel that I know has plenty of oil, and should run fine in your new truck.

One caveat: some of these fuels are dyed a distinctive color and will stain your internal engine parts. That doesn't hurt a thing; but it does tip off anyone who looks that you haven't been using "approved" fuel. I believe Traxxas will not honor their warranty if you haven't used their fuel. That's lame, but their business. So, it is something to consider.

The only thing you really need to watch is running the truck too lean. That will hurt the engine big-time. The T-Maxx has, without a doubt, the best manual in the industry. You just can't screw up if you READ and follow it. Use their fuel if the warranty thing bothers you. But know that they are ripping you off with the scandalous prices.

Good luck...

.

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RE: Official HPI MT2 Thread - 5/16/2004 8:49 PM   
Steve Campbell


 

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From: Zachary, LA, USA
Status: offline 		tjaf,

My low-end needle is just right. Its the high end that is touchy. But, again, its no big deal. the truck has plenty of speed when run richer than optimum.

Sorry, dunno about the racing clutch.

.

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RE: Official HPI MT2 Thread - 5/16/2004 10:39 PM   
Justinw


 

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From: melfort, SK, CANADA
Status: offline 		I cannot use traxxas fuel because the only fuel my hobby shop has is HPI and powermaster airplane. I don't even think traxxas has a warranty on their vehicles

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RE: Official HPI MT2 Thread - 5/25/2004 3:36 AM   
cen_racer


 

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From: dunno, TX, USA
Status: offline 		does ur fuel go into ur guys pipe becuz it doesn't when i prime it any suggestions


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RE: Official HPI MT2 Thread - 5/25/2004 5:05 PM   
tjaf


 

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From: leuven, BELGIUM
Status: offline 		The fuel doesn't have to go into the pipe If you prime, the fuel should go to the carb through the fuel line attached to the bottom of your tank. The tubing going from the pipe to the top of your tank should not carry any fuel. It's there to provide some pressure in the tank once the car is running. That way fuel will be 'blown' to the carb, so you don't need to keep pushing that primer once the car is running. As stated in the manual, prime until fuel reaches the carb, then prime 3 more times and it will start.

< Message edited by tjaf -- 5/25/2004 5:06:39 PM >

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RE: Official HPI MT2 Thread - 5/27/2004 4:16 AM   
cen_racer


 

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From: dunno, TX, USA
Status: offline 		ummm do u guys no that gear thing in the middle of the truck thats in a cover rite next to the engine and and the radio box thing thats a gear its kinda stripped like 5 of them of the gear are kinda stripped what should i do plz help


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RE: Official HPI MT2 Thread - 5/27/2004 5:38 AM   
jjam


 

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From: Cincinnati, OH, USA
Status: offline 		mt 2 front steering knuckles keep striping out

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RE: Official HPI MT2 Thread - 5/27/2004 6:23 AM   
bkmademedoit


 

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From: mountville, PA, USA
Status: offline 		go to a hardware store, or your garage or toolbox, and use screws with wider threads that cut deeper. it seems to be working for me. i think im going to have to richen mine up a bit because like the one guy said, it blows a good amount of smoke but will overheat and stall. it wont start again when its hot but once it cools down it starts back up just fine.

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RE: Official HPI MT2 Thread - 5/27/2004 7:30 PM   
i8tweety



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quote:

ORIGINAL: cen_racer

ummm do u guys no that gear thing in the middle of the truck thats in a cover rite next to the engine and and the radio box thing thats a gear its kinda stripped like 5 of them of the gear are kinda stripped what should i do plz help


There are a few possible causes for the damage to your spur gear:

(1) improper gear mesh - when you set your gear mesh, make sure there is a little bit of play between the spur gear and the clutch bell. Rotate the spur gear a little at a time checking the gear mesh until you've checked all the way around 2 or three times. Too loose or too tight and you'll destroy the spur gear

(2) debris - a pebble, dirt, etc stuck in the spur gear or clutch bell teeth will cause similar damage

(3) engine not tight enough on the chassis - engine vibrates away from, or toward the spur gear causing improper gear mesh (see point 1)

(4) damaged clutch bearing - a damaged clutch bearing will cause the clutch bell to vibrate and wobble resulting in a damaged spur gear


Good luck

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RE: Official HPI MT2 Thread - 5/27/2004 8:44 PM   
cen_racer


 

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From: dunno, TX, USA
Status: offline 		yeh my screws off that hold my engine were loose at first but i tightened them like 10 mintues b4 so should i jus go ahead and ask hpi if they could replace them


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RE: Official HPI MT2 Thread - 5/29/2004 3:39 AM   
cen_racer


 

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From: dunno, TX, USA
Status: offline 		i ride my in grass but not very tall grass but i ride it in very bumpy grounds is that gonna mess my car up or anything cuz im jus wondering the bumps are about 2 inches deep and i go full throttle thru them and i was jus wondering if anything will get damaged by doing that but all it tends to do sometimes is jus flip over when it hits the last bump which is higher and makes it jump although its pretty cool but i love my mt2 i wouldn't trade it ever unless someoneo gave me a million dollars but i could jus go ahead and buy another one well.... i want to make a movie of it but my camcorder is not one of the kinds that u can hook it up to a computer but o well its still pretty awesome oh yeah and umm... can you get any fast speeds with this engine without it overheating cuz it tends to over heat when i lean it out a bit and also how fast does this truck go?


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RE: Official HPI MT2 Thread - 6/1/2004 6:29 PM   
ryuhito


 

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Status: offline 		Just finished my MT2, basically used the engine and radio tray from my RS4 Evo and bought all the other parts seperately. T

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RE: Official HPI MT2 Thread - 6/1/2004 7:33 PM   
tjaf


 

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From: leuven, BELGIUM
Status: offline 		Nice, how much did you pay then? Is it like the stock MT2? Or did you used some other parts, like an other pipe? Cause I am thinking of getting me another pipe. But I am not shure it is worth the money. Don't know if I want more low-end or more high-end either. I think I want more low-end, but don't want to sacrifice on the high-end with the current pipe. Anyone know if there is pipe out there I could install which will give me more low-end, but certainly not less high-end?

The white letters on your tyres, did you do them yourself, or did the tyres come like that?

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RE: Official HPI MT2 Thread - 6/2/2004 6:26 PM   
ryuhito


 

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From: Ft. Collins, CO, USA
Status: offline 		Basically I had the expensive stuff, radio equipment and tray from an RS4 3, T-15 from my Evo (which got an OS) and shocks from a stripped Super Nitro Rally, all of which are the standard equipment on the MT2, plus the diffs from the RS4-3. I put about $1 50 into all the other stuff: suspension parts, chassis, and body; the wheels, tires and dogbones were the expensive stuff. Ran it for the first time today for a few minutes at the BMX track, no jumping yet but it was fuuuun.

The wheels were chromed using MC (spray can chrome) when some drinking led to boredom one night haha and the white lettering on the tires is metallic silver sharpie.ie

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RE: Official HPI MT2 Thread - 6/3/2004 3:12 AM   
Grantothismo


 

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Status: offline 		tjaf

I have found the racing clutch to be more linear in engagement. As you gas, the car speeds, unlike you gas the car goes - slight difference but necessary.

List of my mods in order:
1)Motor Saver Air cleaner
2)40 MM Lightweight Flywheel - Really revs quicker.
3)Titanium turnbuckles - they work alright not really sold on them
4)HPI Sport Muffler. Alot more top end

At this point, it still was not fast nor torque enough:
5).18SS Engine
6)Dodge Body
7)New Wheels
8)Proline DirtHawgs

Now it scoots. I am as fast as a 1/8 buggy, but small like a 1/10 stadium truck. The engine has made this truck alot of fun. I use to have to get out of the way for people at the track, now people get out of my way - I LOVE IT. All this new speed has made the truck a little fragile. I have snapped a number of front and rear hub carriers. This is a direct result of the speed and what I am trying to do at the track. If I take it easy, it would last alot longer, but I feel the only way to get better is to push your skills.

Hope this helps

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RE: Official HPI MT2 Thread - 6/7/2004 5:12 AM   
Hpi_mt2



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Status: offline 		nice truck

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RE: Official HPI MT2 Thread - 6/9/2004 2:49 AM   
Silent_Bob


 

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From: Lancaster, PA, USA
Status: offline 		I thought you guys might be interested in this. I was just curious If the 2 Speed Transmission for the old MT would work for the MT2 so I gave them an email. With in a couple of day I got a reply saying that the MT Transmission wouldn't work but the Nitro 3 should. It is part # HPI86038 and you can get it for $52.99 US Here.
They Don't Recomend it for Off-Road use but I dont see a prob with it. I mean the savage has a 2 speed doesn't it. I dont see a reason for the MT2 to have a problem with it.

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RE: Official HPI MT2 Thread - 6/9/2004 3:11 AM   
Silent_Bob


 

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Status: offline 		OK I fudged up that post but I editied it and put it Here. Sorry for the mess up.

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RE: Official HPI MT2 Thread - 6/12/2004 3:20 AM   
szyslak096


 

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From: Blue Springs, MO, USA
Status: offline 		How about everyone listing their mods and how well they work. I got my MT2 about a week and a half ago. The only thing I have done is put a MotorSaver on it. I'm still trying to get it tuned. Kinda slow on the bottom end but SCREAMS on the top end. Also, anyone who wants to know, the MT2 does good through the grass but I would recommend the TMAXX or Savage for serious grass bashing.

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RE: Official HPI MT2 Thread - 6/12/2004 6:02 AM   
Hpi_mt2



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Status: offline 		i hav no hop ups besides the glue on my tires

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RE: Official HPI MT2 Thread - 6/12/2004 9:19 PM   
jeep1992


 

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From: Great Lakes, IL, USA
Status: offline 		New Era Models 125cc fuel tank: Longer Run Times.

Pro Line Masher 2k Tires: Better running in the Grass (Higher Ground Clearance).

Hpi Racing Clutch: I thought the stock clutch shoes were pretty good. The springs get weak taking it on and off. The springs are pretty cheap though. The racing clutch dosent have the spring weaking problem. I didn't like running the racing clutch in the second hole with the first hole cut off. But I wanted smoth steady acceleration. I currently run the racing clutch in the middle hole uncut.

Titanium turn Buckles: Cant really say if the helped anything. Mabey If you race and r dialing it in to different track conditions. Not like I would know how to do it anyway.

High Torque Steering servo: Improved Steering conciderably: Also replaced part A396 with 4x8mm bearings wich helped smooth up the steering.

Clutch Needle bearing: Replaced with 2 5x8mm flanged and 2 5x8mm unflanged bearings: Lasts longer.

Fiber Disk Brake (A844): Still screwing around with the brakes didn't say it improved anything over the stock brakes. Mabey Longevity. Defenatly not stopping power. Mabey I will try Kyosho Light-Weight Metal Brake Discs.

Engine 18SS: Way more low and high end than stock. really torquey with the stock 12t clutch bell. Tuned easy. The Front steering knuckles stripped the screws when i put the 18ss in. Mabey just coincidence. Broke a front C hub also replaced with New Era Models Metal front c hubs and steering knuckles. Awsome now.

Broke the front and rear shock towers jumping. Replaced with F4i titanium shock towers: Problem solved. The stock ones hold up pretty good though.

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RE: Official HPI MT2 Thread - 6/13/2004 7:16 PM   
tjaf


 

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From: leuven, BELGIUM
Status: offline 		Hey,

Can you tell me a bit more how that 18SS is working for you? Does it start easy? Does it keep its tune? Any overheating, or can you run it all day long (if tuned right off course)? Performance OK? Can you maybe compare it to previously owned engines? What's the run time with a standard tank? Are you happy with it? If I can find the money I want to put some more power in my MT2 also.

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RE: Official HPI MT2 Thread - 6/13/2004 11:55 PM   
Spudnik



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From: Ajax, ON,
Status: offline 		hey guys, i am now an mt2 owner. i got my baby last friday. did the 6 tanks of breakin, two more rich, one more ok, and the last 3 at about 230-240. I love this truck.

questions-

can i use megatech q series off road glow plugs in my stock mt2 engine.

what is a good temp to run it at. righ now it is at about 236ish

how is the 18 ss engine in this truck

and what is the rmp at max hp for the stock motor and the 18ss

thanks alot

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RE: Official HPI MT2 Thread - 6/14/2004 4:35 AM   
Grantothismo


 

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Status: offline 		tjaf

I have a 18SS in mine and I have to say that it is a very easy engine to tune. It gives incredible amount of speed and torque. The performance is phenominal!!!! Just flat out flies.

I have notice that I get less run time with it, but I couldn't tell you how much.

I did have an interesting thing happen with my 18SS. I installed the engine, ran it for awhile, 10 tanks, went racing at the track and the while backend of the motor blew off, rotostart and all. I put it back on at the track and ran some more without incident. I was running it today and the same thing happened. I have since locktight the screws in, but I would have thought they were from the factory. Still runs good so I don't think that anything is hurt anything.

I hope you get this engine - it is well worth the money.

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RE: Official HPI MT2 Thread - 6/15/2004 2:50 AM   
EdsWords


 

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From: Blair County, PA, USA
Status: offline 		I have seen the aformentioned GranTothismo's MT2 at the track with the .18 engine.

There was also a 1/8 scale buggy there that night. The .18 MT2 could do about 90% of whatever the 1/8 scale buggy was doing. It was very impressive.

I think I want one.

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