R/C Tech Forums - GRP... Engine... Thread...

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pballer2777

06-13-2009 07:24 AM

i know all engine tune diff. but can any of u share ur needle settings so i can get in the ball park. i'm havin alittle trouble with it stayin runnin until it warms up good.

sluggo_sx8

06-13-2009 08:45 AM

Quote:

Originally Posted by mattwoodcraft (Post 5932905)

if the motor still has a bit of nip to it up top it wouldnt hurt these motors take a long time to get heat into them at the best of times

Thanks Matt, ya the motor has a ton of nip left. Nothing my box can't handle but I don't want to mess this sweet motor up hehehehe.

mattwoodcraft

06-13-2009 08:58 AM

my grp runs like a real bag to when cold but thats okey when it warms up its all sweet just when its cold it rich if your engine is running fine when at ioperating temp leave it or you may find you will run into trouble with lean settings

steve307b

06-16-2009 08:43 PM

Has anyone ever ran a P5 JX Ninga glow plug in a tuned .21? And if so did it run and last ok? Thanks

mattwoodcraft

06-19-2009 04:52 AM

is this plug not similar to the grp ones ? i use the gro ones have no issue with them at all

Frank L

06-19-2009 06:43 AM

Every grp I have ever had is cold blodded. I would have to warm it up on the box for 3-5 min before each race to get the tune to level out. Never never tune a grp cold. It will lean out when it warms up.

mattwoodcraft

06-19-2009 11:43 AM

:nod:

steve307b

06-20-2009 10:38 PM

Quote:

Originally Posted by Frank L (Post 5957495)

I hear ya Frank on them leaning out when they warm up, but mine was running like 200-210 this weekend and it was still tough for me to get the big finish line jump at RF. I had to take the turn wide before it to clear it. Seemed rich on the low end......Gonna have to mess with it this week. Great day of racing though:nod:

steve307b

06-20-2009 10:40 PM

Quote:

Originally Posted by mattwoodcraft (Post 5957246)

is this plug not similar to the grp ones ? i use the gro ones have no issue with them at all

Not sure if it is...but the GRP plug that came with it didnt last through break in.... I'll try it

mattwoodcraft

06-21-2009 04:08 AM

its fuuny you say that some people have good experiance with the grp plugs and some dont i have got break in plus another 4 gallons through it still on the same plug :)

it took a while for this engine to produce power buty its okey now...

GMS_Racing

07-03-2009 05:29 AM

Anyone looking to sell a low use GRP .21 ??

Toiffel

07-03-2009 08:40 AM

I have one with a gallon on it, u still can't turn it over by hand, broke in and ran 30% EB Fuel, used heat cycle, and heat gun to fire up every time, pm if your interested.

ABURTON

07-05-2009 11:11 AM

Quote:

Originally Posted by GMS_Racing (Post 6019031)

Anyone looking to sell a low use GRP .21 ??

I also have some Matt.

donut92673

07-05-2009 03:06 PM

i have a new tuned promo kit if anyones interested.

willbe

07-05-2009 05:57 PM

Every motor needs to be warmed up first. buy a heat gun and warm up the engine prior to every heat. Doesnt take as long to get it up and ready for tune prior to the heats.

I like the Odonnell plugs in both the tuned and non tuned.

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