.21 grp's and ninja's
#1
.21 grp's and ninja's
does anyone out there know where some piston/sleeve/rods can be purchased for these motors, i have a few that could use a refresh and can't find them anywhere..... will any other p/s/r combo work in it possibly from novarossi???? somebody somewhere has had to have experimented with them.....
#2
I created a GRP P/S set into a Novarossi engine. I needed to use a Novarossi rod and had to drill up the hole for the piston pin from 4mm to 4.2mm
#3
ok then, no parts available, here's my next question......... what .21 motor is as powerful or even better than the grp/ninja in the same price range???? in other words i don't want to spend 4-700 dollars for a on road motor that only has .2hp more than the next that is good if i were a pro racer, but i'm a parkin lot racer with my kids so i don't neeed the best of the best.......any help would be good,thx
#5
Tech Rookie
GRP Engines
I have a few brand new GRP Tuned engines available .21 Mario Rossi tuned,my e mail is [email protected],also parts available and #4 GRPplugs and pipes.
#6
RB Classico 9
JP P7
Picco
JP P7
Picco
#7
You can take a look to the Novarossi 35-plus-21 with the blue or purple head (non collari edition), they are affordable and are a big bang.
Or take a look to the Novarossi RX21 models.
Or take a look to the Novarossi RX21 models.
#8
I'm in the same boat as you on a P/S for grp. and those are the exact engines I'm considering. The classico is in the lead with a $245 price tag, the JP first line 2nd and then the Picco. If your P/S is not too bad off you may consider RayA resizing. A fellow racer has been really happy with his work, and I'm considering sending mine off. For $20 what do I have to lose, the engine is dead like it is.
Tim
Tim
#9
Roger
#10
Tech Champion
iTrader: (3)
ok then, no parts available, here's my next question......... what .21 motor is as powerful or even better than the grp/ninja in the same price range???? in other words i don't want to spend 4-700 dollars for a on road motor that only has .2hp more than the next that is good if i were a pro racer, but i'm a parkin lot racer with my kids so i don't neeed the best of the best.......any help would be good,thx
#11
rb ws7 is good!
#12
I have a used Ninja MR21-RO1 with very good pinch, a new con rod, new wrist pin, new c clips, new exhaust gasket and new manifold springs. $150 shipped (USPS-Lower 48). I just sold my MRX4R and this was the spare engine. I will also post this on the 'for sale' thread.
paypal ok
[email protected]
paypal ok
[email protected]
Last edited by Zootcapri; 12-02-2009 at 08:34 PM.
#13
I have a used Ninja MR21-RO1 with very good pinch, a new con rod, new wrist pin, new c clips, new exhaust gasket and new manifold springs. $150 shipped (USPS-Lower 48). I just sold my MRX4R and this was the spare engine. I will also post this on the 'for sale' thread.
paypal ok
[email protected]
paypal ok
[email protected]
#14
Tech Addict
JP P7 Black Modified- Add a shim during break-in. After that don't look back.
This motor is great, now hurry-up and get one before they realize they are selling this motor to cheap.
P/S at Serpent America.
This motor is great, now hurry-up and get one before they realize they are selling this motor to cheap.
P/S at Serpent America.
Last edited by kmh; 12-30-2009 at 02:19 PM.
#15