It's freaking almost the cost of a left nut for what a glow plug costs for these motors! I like the idea of standard button and standard plug. Is there really that much of a performance gain with a turbo button and plug?

Are you kidding? $55 I would have sent the motor back and had em send me an OS.

I am not giving up any of my kids for a glow plug!

The turbo head button for the Tune GRP engine is separate from the cooling head. Amain hobbies has them for sale, but where can I get the standard head button for it?

Can someone educate me on the benefits of using a turbo plug vs. a standard? With plugs being that expensive I may look for an engine that uses standard plugs unless the turbo's offer a good benefit to me.

I got a used grp and the plug in it says c5? Is that a grp plug? I will not spend 14.00 a plug that is crazy

The C5 is a GRP plug

HA HA... neither would I give up kids for the glow plug.. But thats what i get when im stuck at the race days without extra plugs. I dont know about going back to OS.. i really like how the grp perfomance on track. I cant say that it beats OS vspec, but it sure is alot smoother than VSPEC..

he said go back to os he said noting about vspecs
jx ninja :tire:

i love my grp motor 12 gallon lost it pintch we repintched and now i lost count
stock bearings to

I put a standard button on my Falcon which now has the GRP orange head and crank with no issues.

amain! go to the ninja(grp) parts page and they have the STANDARD button in stock for like $31.00.

Hey guys, quick question for the GRP tech heads, Is the standard (non tuned) .21 engine with the silver head, just a newer version of the original BX21A Ninja?

http://www.carolinasrc.com/webstore/...dproduct=10021

If not, and anyone knows, how ould compare to the older ninja?

Thanks guys :nod:

that is their lower or cheaper version of the .21 tuned .

Okay, so nothing like a ninja bx?

Lol sorry, i know little about the GRP's, and was told that the Tuned, is just a slightly different version of the MRT Ninja's, so i put 2 and 2 together, and gathered the stock .21 might be similar to the Ninja

grp 28
 

hi just purchased a tuned 28 used. 3 questions i have: im looking for best pipe through the whole powerband. ofna 086 maybe. 2nd question is will os carb work on this engine with success. 3rd question is im eyeing a set of carb restrictors for go tech will these work on grp carb, i know they fit os carb.

well I got my grp tuned running farily well. I put a o.s. p8 plug in it and now it runs pretty good and idles well. But my question is with the plug out of the engine I can turn the crank over fairly easy. Still has the pop sound to it when it goes to tdc, think its time for a new piston and sleeve