Novarossi engines thread
#1156
I'm looking to buy complete p/s/r part number: 08275 for novarossi ns15 s5. where is it ?
datasheet: http://www.novarossi.it/images/esplosi/NS15S5.pdf
datasheet: http://www.novarossi.it/images/esplosi/NS15S5.pdf
#1157
Anyone with suggestions as to how to keep a 421B engine running for longer than 5 minutes? A bunch of bought this engine and it just wont run for any of us. We've tried medium to hot plugs but nothing works...at idle engine flames out when hot.
#1158
Was wondering which NovaRossi parts (piston/sleeve/bearings/crank) are interchangable with the NovaMega EVO4 MS?
Is it possible to use a P5 case with on-road Piston/Sleeve and use it for on-road?
Is it ok to use a off-road engine for on-road?
Is it possible to use a P5 case with on-road Piston/Sleeve and use it for on-road?
Is it ok to use a off-road engine for on-road?
#1160
Originally Posted by jjmudd
Anyone with suggestions as to how to keep a 421B engine running for longer than 5 minutes? A bunch of bought this engine and it just wont run for any of us. We've tried medium to hot plugs but nothing works...at idle engine flames out when hot.


#1165
Tech Regular
Joined: Aug 2003
Posts: 357
From: hamilton,ohio
Originally Posted by Speed_Racer
Is it ok to use a off-road engine for on-road?
#1166
I'll be using byrons 30% fuel soon, but I don't have any info on my Novarossi PT21 SP1 engine as to how many mm and how many shims to use for it. It's an older top engine as seen here:


#1167
as far as I know every .21 engine is properly set to use 25% nitro (except for rally game versions).......you should be safe with 30% but if you really want to avind any risk put another 0.10mm shim........
#1169
if you set the head clearance too big you end up leaning the engine too much to get a good performance and it will be dificult to get it running at reasonable temps...........
Last edited by SalvadoriRacing; 02-02-2006 at 02:50 PM.
#1170
When I ment two I ment an xtra one just incase. What can happen then if I run it with 30% stock will there be any signs I should look out for? I'll take the head off to see if there are any shims on there.



195Likes