what is the difference between the .12tz and the .18cvr ?

one is a gonzo nuts race engine, the other is a gonzo nuts bashing engine.

what do you mean by bashing ?

Its got the horsepower to get you into trouble... its got the torque to get you out of trouble. What more can we say about the .18? Its solid, priced to sell thousands... STRONG!!!

if I'm going to race then I should buy the .12tz and If I'm not going to race buy the .18cvr ?

yes

why the is there such a big difference in price? and does the .12tz come with a factory warranty?

No warrenty on the TZ and a 2 year warrenty on the 18CVR.

Bigest difference in the two are the power bands and the rpms.

TZ will make great power from middle to high in the power band and the 18CVR will give you massive lowend torque.

The TZ revs much higher than the 18CVR letting you do very little gear changes for best performance, while the 18CVR has so much torque and not as much rpm that you will have to pretty much revamp the way you gear your truck completely.

I don't have a TZ, but, just installed a 18CVR into my RC10GT. My gear ratio went from a 64/16 to 58/17 and I wanna try a 58/18 I just don't know if it will fit with enough lash. still with the new gear ratio my truck wheel stands quite frequently and that is with the slipper not yet fully cranked down and tops out pretty fast as well.

Racing, you will have to get the TZ, but, check your local track cause some tracks only allow so many ports. But, basically to be legal it will have to be a .12 sized engine. Unless they have Outlaw class!

I'm not going to race much if at all. I have a HPI mt2 18ss. What engine would you use for it ?

18CVR
*EDIT*
actually I'd use the kit engine.
cheaper pistons/sleeves for it, might as well just keep that motor

Is there a difference between the stock hpi 18ss and the OS .18cvr ?

Correction on the .12 tz... it has torque and take off similar to an electric. Thats a lot... its got a lot of low end grunt.

Rusty2448:

Thunder is right the stocker is good. If that one gets tired, I would look at a OS .18CV-R. I have one in my MT2 and it is night and day to the .18SS. The OS has so much torque that it will frequently shear the center shaft of the spur gear on hard excelleration. Other than that the MT2 SS and an OS is a great match.

Gran

Grant, honestly, with $40 piston/sleeves, i'd probably buy an 18SS over an 18CVR despite the price difference if I were in the market for an .18.
that 18SS makes mad power, and i'd hang on to it unless you REALLY wanted more power.

I don't know Thunderbird.....

It's hard to break an O.S.

They run forever....


Anty

yeah, well, a piston/sleeve for an 18CVR is almost as much as the engine itself IIRC.