378

My Feedback: (4)

Brand new fuel...yeah that rules stale fuel out. As for the fuel lines, are you 100% sure the Ys in the fuel lines are sealing properly? Try running it on just one engine with solid lines running to and from the tank, see if they behave themselves.

doug702

My Feedback: (1)

from post above where i said 2 silver heads i was wrong its the one with street tires

doug702

My Feedback: (1)

ill try runnning lines to one engine at a time thanks for the help guys let me know if you think of any other tips

Anthoop

Using 2 fuel tanks will be your easiest option.
Also if the engines are new, I would recommend running them in one at a time.

doug702

My Feedback: (1)

when i had this truck set up the first time i had 2 tanks but one fed the other then fed the motors and it worked perfect but i didnt like the way it looked so i got one big tank and also the first time i had it set up i ran both motors at the same time for breakin i my self honestly think the motors are the problem but i dont want to just buy 2 more motors because of what i think. btw i have driven it around on just one motor running and it does ok but when i do it with the left motor it still gets hot with a nice smoke trail its been in the high 60s as far as temp here just to give a little more info

Anthoop

If you have two tanks (each connecting to each engine carb/exhaust separately), then firstly you will have less problems in the first place and secondly, any problems will be easier to diagnose because baically it is just two separate systems. Do the engines run diferently when running together compared to one at a time?

doug702

My Feedback: (1)

they run different one gets hot with good smoke trail and the other has a slightly less visible smoke trail yet does not get as hot but they both have good power

Anthoop

When you say hot, what is the difference between the two engines?
Remember no two engines are exactly the same and it is very unlikely they would run at the same temperature, please put the temperature gauge in the cupboard and listen and look.

doug702

My Feedback: (1)

one is hot enough that if i drop some spit or water on the glow plug it sizzles where as the other it just kinda steams off and as i have been told for many years that is way to hot  

Anthoop

You are running different exhausts?

doug702

My Feedback: (1)

two exhaust pipes but they are the same pipe and header

doug702

My Feedback: (1)

i got the stalling problem resolved but i still have the issue of one motor overheating i thought maybe i put the wrong clutch bell on one motor but no that was not the case i have also checked my needle settings again and they are the same the only other thing i can think of is that one of the motors is an m28-p3 from sh and the other is a pt28-p3 but the seller i got them from says they are the same internals just different head to determine year of production can anyone actually verify that for me

doug702

My Feedback: (1)

i am getting better and better results this thing is coming alive now temps are getting better

Clmbngfrk18

Well that looks beastly I would Deff like to see it run once it's tuned up right

Is it still overheating I was thinking if your still using the Y connector you could have a lean issue in one motor. You fuel line is gonna have a Max flow rate and if the 2 motor exceeds that one motor could be taking the majority of the fuel. I'm no rc guru but it just something that came to mind

doug702

My Feedback: (1)

this actually makes sense ill change some stuff around thanks btw no the overheating has stopped but it still runs funny. as i stated before it has 2 different motors and i am really thinking they are different even though i was told otherwise i am gonna order 2 more engines i think ill go with my original plan of 2 xtm 457sive had really good luck with the one in my xt2 ill get a video up as soon as i can get one of my friends to film it for me

doug702

My Feedback: (1)

i am still working on some video i should be able to get it this weekend

Sigma.40

My Feedback: (1)

I'll be here.

Clmbngfrk18

Sweet can't wait

doug702

My Feedback: (1)

for those of you still following i was gonna try and post a vid but i cannot figure out how to record it and drive at the same time, maybe ill just tape my phone to the truck and go about it that way in any case this truck runs freakin awesome im incredibly happy, however i want to sell it and build another anyone interested feel free to pm me

The_Shark

twin engine cars always have looked way cool, though i doubt you get much more power, i could be wrong.

The_Shark

if it can handle big blocks i would go with force .28 rated at 2.7 horse each or two axial .31. both reliable, durable inexpensive engines.

378

My Feedback: (4)

I would opt for four strokes if it was me. Hell, I wouldn't mind trying to get a Saito twin boxer, around half a cube, to work in one.

doug702

My Feedback: (1)

im running 2 sh .28 si get plenty of power. the top end speed is about the same as with one engine since you really dont any more rpm you just to top speed much faster i love this truck as for 4 stroke motors i would love to build one with 1 or 2 of those but i dont have the funds for that right now