guys im tossing up between the this ninja .21 r01 and the mega zx DSII

what do you guys think about these 2 ? the mega is about $70us cheaper than the ninja.

are replacement parts for the ninja cheap ?

has anyone seen these 2 engines run ?

thanks

damn its hard looking for a new engine. i currently have the os vzr v2

Guys who run the Ninja will tell you to buy the Ninja, aswell for the Mega....
So buy the Mega... :sneaky:

It's your choice....
I think performance wise they are about the same, only the Mega revs a bit higher..... (my experience between hearing and seeing both engines)

Reliability?....
My Mega is 2.5 Liters old, so can't give any comment on that.

Pick what ever looks better in your car then.... :D

No sign of the the Ninja MR .12 yet.... :confused: Anyone have any news/info on that motor??? Release date ect...

RC_Alan

I've ran my Mega DSI head to head with the Ninjas. Here what I know.........The Mega has tons more bottom end and it does rev higher. But....the Ninja has a very smooth power band and the bottom end is ok. Depending on car setup each one has it's place. Low traction conditions=Ninja........High traction=Mega.
This is just my opinion based on what I've seen for myself.

I SEE THIS TOO :nod:

default setting Ninja MR21 B01
 

Hai all ...

i ve forgot to default needles setting of Ninja MR21 BO1, any body still kept and share with me please.

Thanks in advanced.

mrgsr

answering your earlier question the 321p tuned is a much nicer engine in my dealings with both. it has better bottom, mid, and top but cost a little bit more. it runs smooth and consistent and have had no trouble with tuning since putting it on my car. i fought my ninja until the rod let go after a gallon and a half.

I had 2 ninja's one w/ 1 gal of 30% odonels and the other w/ 1/4 to 1/2 gal and both of them had piston failure. The piston broke but not the rod...Anyone else experience this?

Piston broke? how many shims you were using? which plug... give more information. Photos of the carnage?

I was using 1 extra shim that came w/ motor (copper) w/ the ninja plug, ninja med header & ninja pipe...The 2nd motor before I started it I opened it to put in the shim and put oil in it & it sat on my work bench for a day. When I picked it up to put it in the car there was a nice little puddle of the after run oil that came out of the front bearing...Never had that happen before... The 1st motor did not do that and it ran perfect until the piston broke...The 2nd was hard to tune actually never got it 100% maybe air leak at that bearing, but still the hottest the motor got was 330 and I was out of fuel...

Sorry, but... with 99.9%, you managed yourself to grenade the engine (not one... two), if you readed this thread you may got some information on this thread, regarding the Ninja, Grinder (Uriah Murnan), I and others told and warned that combustion chamber should be raised a lot (in fact, I run at 25% and needed to put 0.6mm of shims, so going at 30% and depending you were, maybe more height should be needed).

Simply adding the shim that came with the engine, you fell short for about 0.3mm of combustion chamber height. The prove should be on the surface combustion chamber and all the piston (completely pitted and grenaded) and for sure you were blowing constantly plugs (or at least pushing severely the filament into the plug).

And why doesn't Ninja tell there customers to do so then?......

I never had a problem w/ blowing glow plugs in fact after they broke the first thing I pulled out was the plug & it looked fine...I guess I should have read the thread alot closer before i ran the new one...Well now I know...I thought that maybe since both motors came from the 1st batches that were sent out that maybe there was a defect...but if it was a shim issue then i will do that one the next one...

if you look on page 8 of this thread i asked the question if i'm running 30% should I run the extra shim & no one answered me...

Nine posts before yours asking:

Ten posts before yours:

On the same page you asked it, had two messages of people telling they needed to raise the chamber much than was able to do with the additional shim that came on the box. In doubt, maybe you needed to ask to the place you bought the engine. Specially when you broke the first and go for a second engine.

If the LHS gave you a bad advice or at least suspect of something went wront, probably you could do a quick call to the importer (Mugen Racing and ask about them, for sure they will told you to raise the combustion chamber up to a safe level).

Don't know why, but, everyone who used this engine needed to raise the combustion chamber, maybe on the future, the engines should come correctly shimmed from factory.

Just got this motor today, and I got the Ninja EFRA 2053 pipe but the header didn't come in yet. Anyway, what exhaust system is everyone using with this engine and how are your results?
Thanks,
Adam

The short header is the one we use here usually, maybe if you run in huge tracks, the medium, but up to today, the one I've been seeing paired with the Ninja is the short one.

Raced my ninja motor for the first time this weekend in my mrx4r at the tristate 200 in Cincinnatti. I had no problems hangin with highend novas, and rb this weekend. If only I was as good as my motor was. The motor ran great minimal tuning. Held a great tune all weekend. I was running it rich and still getting great fuel mileage.

ninja 12 ready for shipments after the worlds, they should be available
in the us by end of this month.
happy racing

I hope one of the .12 engines is going to NitroDyne Systems (http://www.nitrodynesystems.com) before the end of the month, so that we can all salivate over the performance graphs. :)

the Ninja .12's are fast, Mike, Keisuke are using them at the worlds and they are on the money :sneaky:

If they are using them at the worlds, they aren't stock out of the box.

as far as i know you cant even get a 12 motor just a 21 but i could be wrong i cant get one

theirs no way these .12s at the worlds are stock. my mate is up there and said these engines are running lean as.. they come in to the pits revving like the sound of bees and hardly any smoke is cominmg out of them going down the straights.

Then just as their 10 min heat is over they die from no fuel

no worries .. 1 new engine per heat :sneaky:

hehe yeh i know
i heard each driver can only use up to 3 engines in the worlds?

not sure if they can have a few piston/liner sets though

Max 3 engines, but they are allowed to change parts in these engines......

engine has won the worlds .. when is it going on sale?? :lol:

ninja 12 ready for shipping at the end of this month, I guess these will be the STOCK versions, not bad for ninja to win the worlds considering that is not out yet!

AFAIK: There will not be Stock & Tuned versions, only one. If anyone will want a 'Tuned' version they will rely on Murnan or other tuners. Did some small mods to my .21 On-Road and it woke up a lot, there's a lot of potential on those engines with some little work on there.

And regarding the .12... not bad at all for a engine who carries 10 months late from their original schedule, but kudos for Mario Rossi and the Gandini Bros for their first WC with the Ninja.

Congrats to the Ninja guys on the WC, As far as everyone whinging that these engines are 10 months late, take a chill pill, i was at the worlds and the engines yes were fast but they also had some small niggiling problems. So let me ask you if they had released the engine 10 months ago and the engine had these problems EVERYONE would have said they were crap, dont buy one and the like. Be thankful they are the sort of people who take the time to sort the problems cause when they are released at THE END OF OCTOBER EARLY NOVEMBER they will be rocketships. I spoke to Mike S and Simon Camalleri at the worlds and both are very satisfied with the speed but both said the same thing about the niggiling issue. I also spoke the one of hte Gandini brothers and from his mouth Not 2nd hand he said they will be ready for shipping at the end of october early november! So guys sit tight cause then it will be party time.

Oh and just one more thing there was only 1 person who was running short on run time with these engines and that was because after getting the car re-teched he found that he was way under the limit, so after fixing this problem run time was back to 5:15 once again.

And in regards to them being very lean that is not the case as they all had plenty of smoke coming out of them. When they were coming back into the pits yes they were hanging the rpm up and this is the issue they have to fix, but they know what the problem is and how to fix it so have no fear.

OK, let's wait n see... :rolleyes:

assuring the highest performance compromising release schedule should be the priority and the right thing to do! a couple months to fix potential issues seems logical, hopefully before santa arrives on my track!

gota try this motor to see if it will break on me or not but i think it should be pritty good.

Any info on the .28 ninja? Im wanting one.

Has the engine started shipping...??? :sneaky: Some of us have been patiently waiting for availability and pricing. :D

Rainer i spoke the GRP at the worlds and they said end of oct-early nov.

:eek: :eek:

Thanks! I might as well just ask Santa to bring me one! :rolleyes: :lol:

hmm
 

put in a good word 4 me 2 :D