Ninja Engine by GRP
#827
Originally Posted by RR
HI Guys
check this OUT!!!
this engine is really lightweight !!!
check this OUT!!!
this engine is really lightweight !!!

#832
Originally Posted by Corse-R
Great! Cannot wait to see the .21 version of the Tuned mills. Have you got one unit? Please, give feedback of it if you managed to put one of those on your car.
putting on one today
running in tmr
saw the .21 version too.
will update on the performance
#836
#837
Hi all,
Something really wierd happened today. Picked up a new Ninja .21, Murnan modified full ceramic, pre-run in...Ran great, did 1.5 litres through it on the first day out without leaning the top or bottom end too far out. The engine ran fine all day. Took it home to check out the internals for the first time to make sure everything was ok and I found something wierd had happened.
There were two 5mm long triangular shards of metal in the crankcase...but no other evidence internal damage whatsoever. It seems that the pieces had not been bouncing around either as the inside of the case and other internals looked fine. The pieces turned out to be from the bottom of the exhaust port side of the piston. That has not happened before with my other .21 Ninjas. I guess that I will have to replace the damn thing as the balance will be all out etc. etc.
Anyone had a similar problem with a Ninja? Plain wierd considering the engine was not run hard in the slightest and still on the rich side...
Something really wierd happened today. Picked up a new Ninja .21, Murnan modified full ceramic, pre-run in...Ran great, did 1.5 litres through it on the first day out without leaning the top or bottom end too far out. The engine ran fine all day. Took it home to check out the internals for the first time to make sure everything was ok and I found something wierd had happened.
There were two 5mm long triangular shards of metal in the crankcase...but no other evidence internal damage whatsoever. It seems that the pieces had not been bouncing around either as the inside of the case and other internals looked fine. The pieces turned out to be from the bottom of the exhaust port side of the piston. That has not happened before with my other .21 Ninjas. I guess that I will have to replace the damn thing as the balance will be all out etc. etc.
Anyone had a similar problem with a Ninja? Plain wierd considering the engine was not run hard in the slightest and still on the rich side...
#839
There were two 5mm long triangular shards of metal in the crankcase...but no other evidence internal damage whatsoever. It seems that the pieces had not been bouncing around either as the inside of the case and other internals looked fine. The pieces turned out to be from the bottom of the exhaust port side of the piston. That has not happened before with my other .21 Ninjas. I guess that I will have to replace the damn thing as the balance will be all out etc. etc.
Anyone had a similar problem with a Ninja? Plain wierd considering the engine was not run hard in the slightest and still on the rich side...
Anyone had a similar problem with a Ninja? Plain wierd considering the engine was not run hard in the slightest and still on the rich side...
Piston breakage is a very rare ocurrence, seen only two in so many years.
What I'm seeing so much lately are sleeve failures due to over-porting the two small eyelets on the exhaust port, they weaken so much that could break and fall apart and leave a big exhaust port (seen lately on a brand new JP Eagle 9pt).
So people need to start giving a look on their exhaust ports from time to time to see if their 3 exhaust ports have changed to 1 big port.
Last edited by Corse-R; 06-03-2007 at 07:32 AM. Reason: Edit.
#840
I have still some very nice STi's but.. planning to get a T01 on the next weeks.




I'd love to have one of these but they're wayyyyyy out of my price range.