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-   -   GRP... Engine... Thread... (https://www.rctech.net/forum/offroad-nitro-engine-forum/211114-grp-engine-thread.html)

Frank L 03-25-2009 05:12 PM

Anyone tried a .21 tuned or other GRP with the Trinity Bad Boy pipe?

Frank L 03-25-2009 05:14 PM


Originally Posted by Chill_Will (Post 5597308)
With what I have read on the last couple of pages, the GRP 2053 give you better milage but the Dynamite 053 give you more power. Is that correct?

I absolutely love the dynamite 053 on all my GRP .21's I haven't noticed that much of a difference from the 2053 pipe in mileage, but the 053 is so much more free. Easier and quicker to spool up and tons of mid-range power which is where most of my driving happens anyway. The 2053 pipe just felt so restrictive after using the 053.

zixxer 03-25-2009 05:42 PM


Originally Posted by John Schafer (Post 5579105)
Seems as though the Dynamite 053 is the favorite on that engine.

+1


Originally Posted by John Schafer (Post 5579172)
The GRP 2053 will give you much better runtime if that's more important to you. It also costs twice what the 053 does.

+2


Originally Posted by LosiMadMan (Post 5584477)
You CAN put the tuned head on the non tuned motor. All you need is the turbo button head, and the orange head bolts right up.

i thought so to and i couldnt figure out why people were saying you couldnt ...said something about the button being mad into the head ? bunch of ding dongs :lol:have you done it ? or wassup


Originally Posted by SupermaxxRich (Post 5587467)
7mm and tons of power

+1


Originally Posted by Briguy (Post 5597057)
What are the most popular plugs to use on the tuned engine ?

os p series , odonells 97t,99t,77t ...i run odonells and have never had a plug burn out


Originally Posted by Chill_Will (Post 5597308)
With what I have read on the last couple of pages, the GRP 2053 give you better milage but the Dynamite 053 give you more power. Is that correct?

+1 you know this man :lol:if you wanna try an 053 before you buy holla at the next race were at .....

Poppin Fresh 03-25-2009 05:54 PM

I was attacked by the dreaded flameout monster last weekend at Wolcott Raceway's first club race. I flamed out twice in my first qualifier, twice on the second and once on my main. This engine has less than a gallon on it. Some say it likes a rich bottom end with a lean top end tune with a slightly high idle. I'm gonna try that tomorrow. I have the 2053 pipe setup running #5 GRP plugs with 30% Maxy's fuel. Jut when I think I get the right tune it just either runs flat on certain parts of the power band or just flames out. I'm gonna give it one more chance racing at Family Hobbies at Vineland, NJ. If it fails me, I'm going right back to my Novarossi's. It kinda sucks cuz I had high hopes for this engine from watching it perform last season. I even bought a second one as a back up.

Briguy 03-25-2009 05:56 PM

From what I hear the engine hates the #5 plugs except when it is really warm out . Try a #4 .

[email protected] 03-25-2009 05:58 PM

also I hear it likes to be lean on the bottim and rich on the top.

zixxer 03-25-2009 06:00 PM


Originally Posted by Poppin Fresh (Post 5598229)
I was attacked by the dreaded flameout monster last weekend at Wolcott Raceway's first club race. I flamed out twice in my first qualifier, twice on the second and once on my main. This engine has less than a gallon on it. Some say it likes a rich bottom end with a lean top end tune with a slightly high idle. I'm gonna try that tomorrow. I have the 2053 pipe setup running #5 GRP plugs with 30% Maxy's fuel. Jut when I think I get the right tune it just either runs flat on certain parts of the power band or just flames out. I'm gonna give it one more chance racing at Family Hobbies at Vineland, NJ. If it fails me, I'm going right back to my Novarossi's. It kinda sucks cuz I had high hopes for this engine from watching it perform last season. I even bought a second one as a back up.

definitely never heard of a grp liking a lean top and a rich bottom :weird::weird::weird::weird::weird:i mean never ever heard that before ....if your motor only has a gallon on it and still has good compression ...i would look elsewhere for the problem ....airleaks,glow plugs ,exhaust leaks , gas tank leaks, fuel filter leaks ...im just sayin ..the motors are good ...you may have other issues ....if you cant get it right and go back to nova rossis ...pm me i will buy your grp's ....:lol:....the grp tuned is the best tuning and just best motor ive run ....

tallyram 03-25-2009 06:01 PM


Originally Posted by [email protected] (Post 5598251)
also I hear it likes to be lean on the bottim and rich on the top.

+1

Ron Goetter 03-25-2009 06:27 PM


Originally Posted by Poppin Fresh (Post 5598229)
I was attacked by the dreaded flameout monster last weekend at Wolcott Raceway's first club race. I flamed out twice in my first qualifier, twice on the second and once on my main. This engine has less than a gallon on it. Some say it likes a rich bottom end with a lean top end tune with a slightly high idle. I'm gonna try that tomorrow. I have the 2053 pipe setup running #5 GRP plugs with 30% Maxy's fuel. Jut when I think I get the right tune it just either runs flat on certain parts of the power band or just flames out. I'm gonna give it one more chance racing at Family Hobbies at Vineland, NJ. If it fails me, I'm going right back to my Novarossi's. It kinda sucks cuz I had high hopes for this engine from watching it perform last season. I even bought a second one as a back up.

I'd get rid of that grp plug and go to a os p4. I also run mine alittle lean on the bottom and little rich up top

Alan D. 03-25-2009 06:56 PM


Originally Posted by Poppin Fresh (Post 5598229)
I was attacked by the dreaded flameout monster last weekend at Wolcott Raceway's first club race. I flamed out twice in my first qualifier, twice on the second and once on my main. This engine has less than a gallon on it. Some say it likes a rich bottom end with a lean top end tune with a slightly high idle. I'm gonna try that tomorrow. I have the 2053 pipe setup running #5 GRP plugs with 30% Maxy's fuel. Jut when I think I get the right tune it just either runs flat on certain parts of the power band or just flames out. I'm gonna give it one more chance racing at Family Hobbies at Vineland, NJ. If it fails me, I'm going right back to my Novarossi's. It kinda sucks cuz I had high hopes for this engine from watching it perform last season. I even bought a second one as a back up.

Get an O'Donnell plug for it and tune it with a little lean on the bottom and a little rich on top.

SupermaxxRich 03-25-2009 07:09 PM

Lean bottom, rich top and a OS P4 plug. Engine will idle for minutes, not seconds, makes great power and gets unreal run time!:nod:

Poppin Fresh 03-25-2009 07:40 PM


Originally Posted by SupermaxxRich (Post 5598650)
Lean bottom, rich top and a OS P4 plug. Engine will idle for minutes, not seconds, makes great power and gets unreal run time!:nod:

I did that and had tons of bottom end but I was dead flat on the top end. Oh, and I flamed at the 3 minute mark, twice.

Alan D. 03-25-2009 07:43 PM


Originally Posted by Poppin Fresh (Post 5598836)
I did that and had tons of bottom end but I was dead flat on the top end. Oh, and I flamed at the 3 minute mark, twice.

Too lean on the bottom and to rich up top

zixxer 03-25-2009 08:00 PM


Originally Posted by Alan D. (Post 5598572)
Get an O'Donnell plug for it and tune it with a little lean on the bottom and a little rich on top.

+1 odonells plugs work awesome in this motor

SupermaxxRich 03-25-2009 08:07 PM


Originally Posted by Alan D. (Post 5598850)
Too lean on the bottom and to rich up top

what it sounds like to me:nod:

Chill_Will 03-25-2009 08:18 PM

Zixxer - I have both pipes. Thanks anyway.:nod:

Poppin Fresh 03-25-2009 08:50 PM

All these advice, I wish you guys were around my way. I really like the engine for the quality alone, but it's just a big headache for me.

zixxer 03-26-2009 03:09 AM


Originally Posted by Chill_Will (Post 5599015)
Zixxer - I have both pipes. Thanks anyway.:nod:

no problem ..but wait dont you have the grp pipe :confused:if you do run that one ...

zixxer 03-26-2009 03:30 PM


Originally Posted by Fierle03 (Post 5583018)
hey guys i am looking at putting tko's in my GRP and was wondering for those who have run them for a while how they are holding up? Thanks!

heres a link to the tko also ...it say backorder but they have stuff coming in all the time ...they got some good codes for coupons to ...check em out

http://carolinasrc.com/Webstore/Scri...idproduct=1385

zixxer 03-26-2009 03:35 PM

some people had asked about the o-rings for this engine ...i think this is all of them except for the pipe o-rings for the fast link ...and heres a link for those as well ......

http://carolinasrc.com/Webstore/Scri...dcategory=1147

pipe o-rings...these would be the same for the grp or ninja pipe im pretty sure

http://carolinasrc.com/Webstore/Scri...idproduct=4381

odoylrulz 03-27-2009 02:43 PM

For the GRP 2053 FLS pipe do you need one or two o-rings?

zixxer 03-27-2009 03:05 PM


Originally Posted by odoylrulz (Post 5606627)
For the GRP 2053 FLS pipe do you need one or two o-rings?

2

odoylrulz 03-27-2009 04:06 PM

Thanks

steve307b 03-28-2009 06:04 PM

Hey guys I just got my GRP tuned .21 and it came with a couple different carb inserts. Wich one should I use? Not too familiar with these things. Thanks

zixxer 03-28-2009 06:06 PM


Originally Posted by steve307b (Post 5610442)
Hey guys I just got my GRP tuned .21 and it came with a couple different carb inserts. Wich one should I use? Not too familiar with these things. Thanks

6mm buggy 7mm truggy inmho:nod:

steve307b 03-28-2009 06:16 PM

Ok thanks

John Schafer 03-28-2009 06:26 PM


Originally Posted by steve307b (Post 5610442)
Hey guys I just got my GRP tuned .21 and it came with a couple different carb inserts. Wich one should I use? Not too familiar with these things. Thanks

Generally the smaller restrictors give better fuel economy at a loss of preformance. The larger restrictors offer improved preformance and less economy. It's probably better to start with the 7mm restrictor and see how the engine runs and change from there if you think you need to improve one charicteristic or another

zixxer 03-28-2009 06:30 PM


Originally Posted by John Schafer (Post 5610506)
Generally the smaller restrictors give better fuel economy at a loss of preformance. The larger restrictors offer improved preformance and less economy. It's probably better to start with the 7mm restrictor and see how the engine runs and change from there if you think you need to improve one charicteristic or another

i mean i was event thinking the un thinkable ...running the 6mm on the truggy ...i didnt notice any difference...or well not noticable running the 6 or the 7 ...i idid notice better fuel economy ...with the 6 ...and fuel economy wins races ...but ...really i get great milage on the 7 in my x2 ....but buggy i would say the 6 or lower for runtime ..and the performance loss is negligible:tire:

patrick lsp 03-28-2009 07:22 PM

ninja head on grp?
 
has anyone ever ran a different head on the tuned grp. from what little i know about the grp, they are very similar to the old b01 ninja. i have heard this from several different people. were the b01's turbo plug motors?

steve307b 03-28-2009 07:47 PM


Originally Posted by John Schafer (Post 5610506)
Generally the smaller restrictors give better fuel economy at a loss of preformance. The larger restrictors offer improved preformance and less economy. It's probably better to start with the 7mm restrictor and see how the engine runs and change from there if you think you need to improve one charicteristic or another

Thanks John...cant wait to run this thing:nod:

ovalosi 04-01-2009 07:41 PM

plugs?
 
Do all of you guys run grp plugs? Also what temp plugs work best in a tuned .21 .I live in TN and have been running hots, but I was told I shoudn't be. Any suggestions are appreciated.

steve307b 04-01-2009 07:59 PM

I had a question on the GRP collet that came with my tuned .21. I installed the collet and then put on my losi flywheel. The flywheel did'nt seem to seat properly or go all the way back so I went ahead and put on the losi collet and it seems to work fine. I guess my question is do you have to have a certain collet for each brand of ctutch system? Because the grp one definately didnt seem right with my 2.0 flywheel.:confused:

Briguy 04-01-2009 08:16 PM

Most of the time you have to use the collet that is designed for the flywheel , the car`s collet .

teamreidy 04-01-2009 08:24 PM

im breaking in my tuned .21 and noticed that the high speed needle is almost past flush on the way out to get enough smoke for it to run right is this normal cause i read it should be .045 in from flush and the low speed needle seems right from the .o45 out from flush any tips would be appreciated thanks.

Briguy 04-01-2009 08:28 PM

Needle settings are going to be different from what you read and everyone lives in different climates . Temperature and humidity play a big role for tune settings . Just adjust to where it works best in your area .

steve307b 04-01-2009 08:42 PM

[QUOTE=Briguy;5629593]Most of the time you have to use the collet that is designed for the flywheel , the car`s collet .[/QUOT

After installing both of them and checking thats what I figured but just wanted to make sure. Thanks

Briguy 04-01-2009 08:43 PM

No Problem .

losi_racer 04-02-2009 12:41 AM

man, idk what happened to my grp. i lost all power in it. i was running 225 and was runnin so rich on the top i was gettin passed on the straight. i couldnt figure this out. i lost tons of compression in this thing. it has MAYBE 2 gallons thru it and it feels like its had 5.

i checked all over for air leaks couldnt find any. i switched to a new plug(p3) still nothing. so i let it go after messing with it all day this was last friday btw. monday night i go and mess with it again, but this time i decided to switch to a p4 plug. BAM, everything is back. the same exact tune that was runnin at 225 and was rich. went to 170 and running great.....

i didnt thing that small of a step would make that much of a difference. i was told in the beginning that the p3 may be to hot but at first it ran at 160-170 all day then at the nitro challenge all these problems started to happen. i know it wasnt just a bad plug because i changed it twice at the nitro challenge then i got i back out last friday and it got another new plug and then monday changed to a p4. i dont know what happened to the compression maybe the p3 plug was WAY hot and damaged it or just running it at 225 did the damage idk. im just glad i got the trusty grp power back

i just thought i would post this if anyone else was having issues like mine..... and btw for everyone who has people say that a grp runs good at 225. they dont know ANYTHING about grps. mines been running great since that temp change(plug change as well) and mike thrue who is sponsored by them even told me at the nitro challenge that it runs best at 160-190

zixxer 04-02-2009 01:11 AM


Originally Posted by ovalosi (Post 5629419)
Do all of you guys run grp plugs? Also what temp plugs work best in a tuned .21 .I live in TN and have been running hots, but I was told I shoudn't be. Any suggestions are appreciated.

top right thread tools search glow plugs

losi_racer 04-02-2009 01:33 AM

EDIT WRONG PLACE


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