Fatal1ty......Nice user name

What will be an optimal temp for a modded Keep Off 7 ripping hard? about 260F? I heard the newer heads read quite a bit hotter.

I don't know about that, but from memory Novarossi state on their information that you should be looking to run at ambient temp + 90 degrees celsius, which 90C is around 200F. So you're looking at ambient temp +200F.

Not sure how much difference in temp modded makes, but my keep off runs great with good smoke, good power, and a great sounding engine, and when I happen to temp it, the engine is anywhere from 255-265F.

Houston!
http://www.redrc.net/2014/06/rex-on-...ntent=FaceBook

What I see there it says the Plus5 has a 14.5mm crankshaft.
I asked a guy "in the know" and he said that this would be 15033.

What would that do to a P5 when it comes to performance?

It't 85067; http://www.novarossi.it/2012/images/...-PALOMA-21.pdf

Actually just noticed that NR has the same exploded view for both "R-Plus 5" and "Paloma"...
But the Paloma and the first Toro Nero shares most parts; http://www.novarossi.it/2012/images/...ORONERO-21.pdf

Are they getting rid of parts..?

The engines are built by novarossi , great quality

Im sure the engines are good runners

That crankshaft will not fit the P5. The P5x/P5XLT/P5Clio has 14mm crank using 14x25.8mm main bearing in the crankcase. The 14.5mm crank listed above requires 14.5x26mm main bearing in the crankcase.

Yes. And why would Novarossi have any problem machining the case 0.2mm more to accept a 26mm bearing? I'm not sure I follow your logic.

The webpage clearly states that it uses a 14.5mm crankshaft. My source says it's one numbered 15033.

they would also have to machine they inner part of the block to take a 14.5 mm crankshaft...

they've already done that for the Top Plus5 which was recently sold in the US..
http://www.serpentamerica.com/shop/p...cat=132&page=1

ok

I have a Losi 8 T 3.0 with a Novarossi Roma .25 trugy engine. The engine has an 8mm Venturi, 9886/41001 nova pipe and short manifold combo. I also have 4 aluminum clutch shoes with stiff springs.

I have about 1 1/4 gallon of fuel through the motor and cant get a good tune. It keeps running hot - 260 - 290. Also I cant get a nice clean sound on the straightaway, it sounds rich or fat, but If I lean it out the engine runs too hot.

Is it normal for the roma to run hot? Do I need to break it in more?
Is there a chance that I have the wrong pipe/manifold pipe combo? The combo I have I pulled off this forum, but when I look on NR website neither option is recommended for this motor?

Any recommendations or info on your experience with roma's will be a huge help

drop a 7mm in that thing maybe try a 9901 pipe.. .but i think the 7mm will help you out

Just wondering what the runtime comparison between the keepoff 21-4s and the 21-4 world champion would be? Has anyone ran both?