i bought the 5 pack of grp plugs and almost fell over backwards at the price i asked are they gold plated , but they do come in a sexy little case maybe the reason why they are so dam expensive but i guess if you by 5 individual plugs some olaces would be the same there certainly is no discount buying the bulk pack eg 5 pack

its the case that makes em go bad

i emailed and asked and this is the response i got.

Dear Paul,

We are not ready as yet with our on line shop whic should be ready now around middle of March.

Best regards,
Lara Speranzini
On behalf of
Maurizio Gandini
So only another couple of weeks to wait!

i got the national titles in 4 weeks maybe i will get some os plugs aswell just incase after reading about the reliabilty of these plugs but i have not yet done a plug and i have run the engine in on yhe same glow plug

anyone know of a place that still sells the(GRP) Ninja BO1A parts(piston/sleeve) ? Or will the new ones fit?

You may not like the price but nitro house has it in stock.


http://www.nitrohouse.com/catalog/pr...ducts_id=16769

Well I ran my new, used tuned grp today. Love the power band I do have a question though, I had my motor running good at around 210 degrees. I finished my tank let it cool down and then would run it again. Man it would run SO rich. I didn't touch the needle setting at all either. My motor has about a gallon on it and its still very tight. Do these motors take a long time to get warmed up compared to other motors? I mean are they cold blooded? thanks

My experience is yes cold blooded, use a heat gun to warm the block and head temp to 180 or above when starting, this helps. I have also had problems with the o-rings on the idle, LSN, & HSN getting old and not holding the position. Easy fix is to replace the o-rings. I even had one GRP that was giving an inconsistent tune where fuel was pooling up and out the HSN without the needle moving, replaced the o-rings and problem was solved. In my opinion I always warm the engine up for 3-5 mins before my heat/ main, it just runs better that way. So yes cold blooded but worth the trouble once its hot and tuned its on fire.

Thanks Frank

my last club race ...with the tuned grp ////i was starting up at the table after pre heating with heat gun ...a buddy came over and said ...man you need to idle that thing up ....i said give it time man ...see what happens on the track ....they are cold natured and take a good 3 minutes of run before a heat to get to operating temprature .....after the 5 minute heat with 3 minute warm up ...it came off at 195 and was not lacking in any way ...give these motors time to warm up and get going and they are golden dont over react when you first fire them up ....after the 15 minute main ...i got 2nd place ...it was 195 and again had enough power pulling my x2 to clear jumps and scramble down a long back straight ....

+1000....havent had the trouble with o-rings yet ....

i damaged my grp because i wasnt heatin it up, idk how many gallons i lost but i have about just over a gallon and it feels like i have 3 gallons on it pinch wise. thats the only bad thing about a starter box that will start anything . i love this motor, my dad got one and he HATES it but he has like 10 tanks total, MAYBE little more. it doesnt have the power he wants but i told him to get it over a gallon and he will love it.



mine comes off anout 180-190 every time and there are so many times where im on my first lap for warm up or just sittin in the pit and i have guys telling me to lean it out and all i say is its fine just wait. then in the race after the motors warmed up i pass them on the straight

i agree with what people are saying it does take awhile for these motors to run in i have got the nationals coming up in 3 weeks and my motor still is nnot trun in et still pretty much new im sure by the end of the 4 day meeting it should be pretty good z hopefully by the finals more so ...
what fuel economy are people getting with these engines ?

in buggy you can get upwards of 13 minutes in optimal conditions and tune ..(i have pitted for people that got that run time)....in truggy im thinking 10-12 minutes range ....after a 5 minute heat 2 weeks ago i had btween 1/2 and 3/4 tank left ...im just sayin ...shouldnt be an issue

I have a grp tuned in my mbx6 and I love it. Gets awesome run time and power is great. But it has alot of fuel threw and is low on pinch, Im the second owner, althou it still runs great. Im getting ready to order a new one. What is the best way to break it in and get it up to temp

Is it possible to put the non-tuned head on the Tuned engine so as to use a standard glow plug? Turbo plugs are just not for me at this time.

The Tuned engine is still sealed in the box. Would I be better off selling this tuned engine and buy one of the modded Non-tuned .21s from Mark? Like I said I just dont' want to get into using turbo plugs right now. So however I can avoid using them would be great.

thanx