phattracker

My Feedback: (1)

i think the jammin 28 is a great motor, and you be jammin mon.

Fher Raul

Now i run the stock Jammin .28 motor, but i have a PRO kit, the last weekend i finish third in a A class main race, because my motor heat and stop 2 times, my pitman and anothers guys said me that i need a race engine like a OS, but i need more option because i like to buy 2 engines, one for stock, and the OS is spensive for me now, thanks for opinions guys

docphysics

I like the LRP .28 Spec 3, or the Losi mach 427. Both great engines at a reasonable price.

SlideZ32

My Feedback: (1)

This is good advice and to the point. My OS engine for my buggy has served me well.

Rye_rucker81

What all is required to run a os .28xz in a stock crt... can i use the stock backplate for my autostarter? will the stock exhaust work?

also same question about the LRP .28 Spec 3

Rye_rucker81

dubbed it ^^^^^^^^^^

Turboprop130

As far as I know, the OS .28xz is bump start only and not able to be converted. If you want to keep the roto start, you'll need to look into a pull-start engine or one with a roto start. For example the [link=http://www.osengines.com/engines/osmg2078.html]OS .30VG ES[/link]. I will do some more research, but pretty sure you'll be buying a starter box if you want to run the OS .28xz, also you might need the pro kit low profile engine mounts. The stock exhaust will hook right up, but I would suggest buying a better pipe.

In regards to the LRP. I have the pull start version and had to buy the LRP backplate and HPI roto start. I also had to get the tall engine mounts since the pro kit only comes with the low mounts. Works awesome, and no need to carry around a starter box. Will add some pics for you to see.

Rye_rucker81

Great pics how do you like the LRP .28 Spec 3?

Turboprop130

I like it a lot. I took some video the other day. I need to edit it, and upload it. Send me a PM and I will send you some video.

Fher Raul

Nice engine, actually i have installed the low profile engine mount and i use a JP-3 Pipe, i see the Exile engine RR on ebay, also some poeple talk tome about the Jammin.28 engine is like the OS V-Spec, i think is a big deal, wht you think?

Rye_rucker81

I know this answer is some where in the 35+ pages but what diff. wt is everyone running for a race track setup..... (Front center rear diff wt) ALSO what brand oil to use?

docphysics

I use Losi and Associated oils. I run 10F - 30C - 3R.

Turboprop130

I use ofna oil and my setup is 15-30-5

eirk66

my friend use's 7,10,5 in his Jammin

rageworks

AE oil 7-20-3

UG0TB4NN3D

My Feedback: (1)

This is my CRT's new body. RT Symbio T2.

evad1

Ok, i just pulled the rear diff out to change the grease that factory put in it to 3k silicon. Now my problem is when i put it all back together the pinion gear makes a winning noise it. it has not been ran sence i have done this so i know i did not ruin the gears. It has shims and i put them back the way they came out if that helps also it had some thick grease on the gears. what did i do wrong. thanks


jake

SaVaGe MaN SS

great body banned what is it? kyosho

JB COMP

I know this has more then likely been asked in this thread, but I don't have time to read through 36 pages.

I need to know how to make my CRT turn sharper. It don't turn well off power (it will turn around in about a 10" circle) but on power it won't turn for nothing (but I'm using 30K in my center diff but I'm about to put thinner oil in it)

My tires are towed out (maybe 2 or 3 degrees) and I'm, running a 3.5 in the back (don't know what its called)

docphysics

for better on power steering, thicker front diff oil, thicker center differ oil, and less tow out, also there is an ackerman adjustment, decrease the ackerman. All should help.

JB COMP

Whats an ackerman? Sorry its been a while since I've worked on my CRT.

How dose thicker center diff oil help on power steering? the tires are barely touching the ground as is.

docphysics

it will send more power to the rear, allowing the rear to slide instead of the front, in turn the slower spinning front tires will get more traction and the truck will rotate through the turn better.

Ackerman:

http://www.rctek.com/handling/ackerm...principle.html

Rawdawgga

Anyone have any news on the new jammin x2 truggy release

SaVaGe MaN SS

dont really know, it was suppose to be released april i heard[]

Turboprop130

It is normal for the diff to make some noise but the diff should operate smoothly. If you're rotating the diff and feel it get tight at any point you need to move a shim over to the other side. The manual says start with 2 and 2. My diff shims for example are 3 and 1. Every diff is different. Make sure to put new grease between the pinion and ring gear and that the pinion is seated all the way back against the diff housing.