Con-rod
02-01-2009, 12:36 PM
#16
Also keep in mind that engines with lower rpm's do not have the same material rods as the faster ones. Novarossi did number them in strength and currently I have seen R2 up to R7.
The R2 is placed in a Basic N21-3T and from own experience I can say it won't last long if you tune up the engine to the performance of the high priced competition models. I have seen R3 and R4 rods in offroads and the R5 and R7 are used in onroads, the R6 is a special model for JP.
Changing rods is cost effective on 600+ dollar priced engines, waiting until it breakes will cost more....
The R2 is placed in a Basic N21-3T and from own experience I can say it won't last long if you tune up the engine to the performance of the high priced competition models. I have seen R3 and R4 rods in offroads and the R5 and R7 are used in onroads, the R6 is a special model for JP.
Changing rods is cost effective on 600+ dollar priced engines, waiting until it breakes will cost more....
02-01-2009, 12:49 PM
#17
Also keep in mind that engines with lower rpm's do not have the same material rods as the faster ones. Novarossi did number them in strength and currently I have seen R2 up to R7.
The R2 is placed in a Basic N21-3T and from own experience I can say it won't last long if you tune up the engine to the performance of the high priced competition models. I have seen R3 and R4 rods in offroads and the R5 and R7 are used in onroads, the R6 is a special model for JP.
Changing rods is cost effective on 600+ dollar priced engines, waiting until it breakes will cost more....
The R2 is placed in a Basic N21-3T and from own experience I can say it won't last long if you tune up the engine to the performance of the high priced competition models. I have seen R3 and R4 rods in offroads and the R5 and R7 are used in onroads, the R6 is a special model for JP.
Changing rods is cost effective on 600+ dollar priced engines, waiting until it breakes will cost more....
02-01-2009, 01:23 PM
#18
I don't really disagree with that since the better Nova rods on short tracks last a LONG time. Changing them every gallon in those conditions is overkill. However, long tracks or non Nova rods need constant replacement or catastrophic failures will result.
02-03-2009, 07:38 AM
#19
thanx to everybody that give a brilliant opininion and supportive comment
...well i guess...im gonna stick with replacement of con-rod for every1-2 gallon...im an on-road racer...and i always run my engine a little rich...i dont like to tune my engine to the max limit...just nice to get the power then i will be concerntrating on other parts such as clutch system, pinion and spur gear to get race performance...
plus at my LHS i can get him to replace my con-rod and the pin at the sam time...it's better isn't it?.......thanx guys...
...well i guess...im gonna stick with replacement of con-rod for every1-2 gallon...im an on-road racer...and i always run my engine a little rich...i dont like to tune my engine to the max limit...just nice to get the power then i will be concerntrating on other parts such as clutch system, pinion and spur gear to get race performance...plus at my LHS i can get him to replace my con-rod and the pin at the sam time
...it's better isn't it?.......thanx guys...
04-13-2009, 11:03 PM
#20
Tech Adept
Can anyone point me toward a how-to on changing a rod? It's a novarossi if that makes any difference.
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