great engine... got 8.5 gallons of solid running with it.. last 11 gallons but had to remove shims and performance drooped off and all that good stuff.. all this on original bearings

Thoughts of the 086 pipe and header for the P5XLT? Good combo?

I had tested my friend 1 with d combo, seems it smoothed the p5 brutality with good response up to top range, never tested with other pipe

Nice, thanks for the heads up!

Out of all the Nova 4-ports which engine produced the most power?

Bonito/paloma will do but from my findings, mostly will run the ⁴. Make me think....

Come on Nova gurus help me out with this answer....thanks

From what I've seen and read its probably the Keep off 4

Hey guys.. does anybody have an used piston for a Nova Plus 21-5k?.. the original owner pulled that back plate with the piston down and you know what happens after that .. the guy had just replaced the P/S/CR but, he went to pull the back plate to seal it and "doink" broke!

Thanks..

You cant get just a piston

Rex plus5 is same as are almost every 16.26 x 16.8 nova engine


My vote is older plus 21-4c team

But most power is kinda subjective, top end power,low end power ,smooth power ,midrange power , what kind of power are YOU lookin for ?

low & midrange power like Bigtime said below..

Thank you for the info!

Im looking for good bottom and midrange power....

Plus 21-4c team or mugen beat 4

Ok.... Thanks

Anyone know if Novarossi is coming out with anything new in the nova keep off 4 port line. Its almost the time for a new motor and dont want to buy the old version if there is a new one coming out.