Originally Posted by kevace

Hi could some one help me out i brought a new novarossi and want to change to the turbo head plate but a guy told me i had to take out a shim but he didnt know which one. It has 2 copper and 1 aluminum one. Which one do i take out? thanks

Originally Posted by Nightjus

Is it True that nova take about 2 gals to get broken in? I jus bought a P5XLT

Originally Posted by Nightjus

Is it True that nova take about 2 gals to get broken in? I jus bought a P5XLT

Originally Posted by mjealey

All right guys, help a brother out. I bought a brand new Plus-4btts about a month ago and have slowly breaking it in. I used the heat method and broke it in just like the "break-in" bible says, then been running conservatively on the track in practice. The motor was so tight new it took me 1 hour to get it started. As soon as it would go up in the sleeve it would freeze, used comp heat to heat it up to 220 every time. Finally it turned over and got it started and idled the first tank through...... That is just a little history.

Now the motor has 1.5 gallons on it and is just not running very well at all. You can turn it over by hand, but barely, which I think is the root of my problem. The motor idles for day and everything is good to go. The needles are now set to flush both the HSN and LSN. Nice crisp low idle to it. The thing has no power to it at all!!!!!! It really bogs on the LSN and is really rich! I try to lean it out an hour or 2 and it starts pinging like it is lean!!!! Problem is driving it on the track it has no bottom to it!!!!!!! Does not have a very strong top to it either. Even with these conditions it is temping at 260. If I lean it to race trim on the bottom it will get up close to 300 pretty quick. I have ran, and ran, and ran this motor at its rich settings and 250 and it never really wants to get any better!!!!! I take my 3 other motors, drop them in with same clutch, pipe, tank and lines, and they scream at 220! I can tune anything and am sort of puzzled. I know it is not clutch, tank, fuel lines as they are all new other motors run great!!!!! I have inspected front bearing and see no signs of leakage.

Should I keep running it now they way it is and eventually it will loose more pinch and problem solved?????? I ran it for an hour straight last night and never improved, still really tight!!!! I think I can't get rid of the pinch, I know it is unbelievable but 1.5 gallons and I really cant turn it over by hand??????? This one is going to need a new rod if it ever breaks in.

Any thoughts by the Nova experts???????


Nova C5tgc (for Break-in)
Byron's 30/11%
Nova 9886

Originally Posted by Nightjus

Damn i gotta wait that long before the nut drops thats crazy. I should idle a tank everyday then.

Originally Posted by aussies1129

you can give it till about 2 ltrs or a 1/2 gallon before you put close to a race tune about 90% but keep it on the rich side and yes all my novas are about the 8ltr or 2gal before run in is complete then you can lean it

Originally Posted by Maxxed-out

I just got the Bonito for Truggy and the BTTA for Buggy. I ran about 3/4 of a gal through both of them before I gave it WOT. After a couple of tanks past 3/4 gal I started giving them hell and they seem to like it. Do you think hell was given prematurely? I have leaned them out a little but temps are 200-225 range, 225 at empty tank after running them hard.

On the Bonito I have a lot of fuel coming out of the front bearing. Is this from being rich during break in? or do I need to replace front bearing?

Whatcha think?

Originally Posted by respirologyrc

So what type of pipe is the Nova 9901 ss? I have one and can't figure it out. What engine size would this work well on? I mainly run on a large size track with a .28 jammin engine. I have yet to try the nova 9901 on it (been raining here in Boston). Thanks guys.