can somebody tell my de difference bewteen those to engines , is it why the new savage is faster than the savage x 4.6 fit or they are the same engine ?

thanks guys

Too soon to tell yet. The X F4.6 isn't out yet.[8D]

What is an F4.6? Is that a .28ci version of the F4.1?

yeah, coming in the X 4.6

i'm still saying the K46 is going to be better

I agree. If the F4.6 is going to keep the same port configuration as the F4.1 and S25, the K4.6 will have a leg up on it.

HPI is rating them both at 2.9hp...but we all know that advertised horsepower is poo-poo. I agree that the K4.6 will "have a leg up" just because the X SS is their premium truck......unless HPI has a new engine in the waiting.[8D]

I think the f4.6 will not be as good as the K4.6. I think it will be more user friendly with the simipler carb, less agressive porting and a external one-way bearing ( I hope).

Then how are they getting that top end speed? Or is that poo poo too?

New to your forum.
I just picked up my X SS with the K4.6 yesterday. Not built yet but happy to answer any questions I can.

All manufacturers advertised speeds are notoriously poo-poo and optimistic. You'll notice that it is rated UP TO 45mph. That means that you WILL see speeds below that. You can take that to the bank.[8D]

I think the f4.6 will be a pretty good motor, over 40 mph I would guess, just not as fast as the k4.6.

Ok, so what is the X SS claimed top speed?

Up to 45mph for the X 4.6 RTR and the X SS is 44mph. All advertised numbers. Your real world results will vary.

I just heard on a German forum that the design-flow between Axial and HPI has reversed, and that this fall the new X SS will have a purple-headed version of the new Axial 28RR....

OK my conscience is getting to me..

JUST KIDDING!!..

Don't want that to become some rumor..

Anyway, was just a silly idea.

The current SS kit and the new 4.6 RTR DO seem awfully close to each other performance-wise though.....

They should sell the x-ss minus the motor since no respectable person would run it when there are alot better choices out there.

They have one like that. It's the Savage X SS without a engine-comes with everything elss.

http://www2.towerhobbies.com/cgi-bin...&I=LXRSJ7&P=ML

no engine/no pipe

The "no engine" X SS kit that Tower sells does comes with the aluminum pipe and header-listed right there in the features. No engine is what differentiates this truck from the regular X SS kit.[8D]

edit-I've got one of these and a Axial .32 on my wishlist. I should have it this Christmas. Hopefully Parma releases the new Digger XX body by then too.