hey guys, I just got a used grp engine. Not sure how much fuel is threw it but has good compression and a new rod and ceramic bearings in it recently. My questions are what plug does the engine seem to like the most. the only pipe I have is a rb 2045 pipe think it will do ok with it? Also what are the factory settings for it. Thanks Im sure I will be asking many more questions to come

Drake posted this in the 2.0 thread:

My GRP set-up for 8ight 2.0: #5 GRP glow plug, stock head shims, 6mm restrictor, 2053 GRP pipe and round header, steel flywheel, two alum. shoes with gold springs and two plastic shoes with green springs. 13 / 48 gearing.

My GRP set-up for 8ight T: #5 GRP glow plug, stock head shims, 7mm restrictor, 2053 GRP pipe and round header, alum. flywheel, two alum. shoes with gold springs and two plastic shoes with green springs. 13 / 50 gearing.

Mike Truhe's GRP set-up for 8ight 2.0: #4 GRP glow plug, stock head shims, 6mm restrictor, 2053 GRP pipe and round header, steel flywheel, two alum. shoes with gold springs and two plastic shoes with green springs. 13 / 48 gearing.


Mike Truhe's GRP set-up for 8ight T: #4 GRP glow plug, stock head shims, 7mm restrictor, 2053 GRP pipe and round header, steel flywheel, two alum. shoes with gold springs and two plastic shoes with green springs. 13 / 50 gearing.

thanks for help guys. Here is another twist on my quest for a pipe.

I won a 086 pipe in a raffle at my hobby shop. The pipe was not actually provided by the shop however. Should I see if I can swap for an 053? What will an 86 do for power?

revo, do you happen to have the pipe that comes with the promo kit? They have tested alot, that's pretty much the best pipe for the job. You will have great smooth power and very good runtime if tuned properly.


http://www.carolinasrc.com/Webstore/...idproduct=8940


It's honestly not restricitve at all for the engine. If that had been the case I assure you none of the top guys would have it on the engines. I think anyone that ran the worlds used that pipe/grp .21 tuned.

No, I have not bought anything yet. Still in research mode. I am trying to figure out why some folks say the included pipe is the best, and others say its the worst! I am getting the .28 tuned fwiw and putting it in a truggy.

Revo, I understand 100%.

Not sure why some say it's the worst. A good key is to look at what the best racers have on the engines. If a ofna 053 worked the best it would be on those engines, or a version of it, exp at an event like the worlds.

I have had the chance to test and race several events including the worlds with GRP's top guys. The GRP support crew of course was at the worlds anprovided us with support. It was always determined that was the best pipe overall for the engine and thats what ended up on our cars for the worlds.

Now, if someone told you that was the best and you looked and they had a jp-3 on the engine you would then know that your told that because they were pushing product.

It's a solid pipe that does not dent easy, connects to header without the springs and does not leak there either.

http://www.carolinasrc.com/Webstore/...idproduct=8940

Some don;t notice how it connects to the header, you see that? My email is [email protected] should you have any questions regarding the GRP. You can also ask Adam Drake on the losi 2.o thread.

ahhh...just seen it's going in a .28, let me double check for you;)


I'll be back.

Revo,

I called Adam Drake and asked him. He said the 2053 is great for the engine. He said make a ton of power and that he actually stopped running the .28 because it would wheelie through bumps to much. But he could not see why some say it's the worst pipe. If you need more power than what that gives ya you may need another hobby! lol....

But I asked the best alternate pipes as well:

Jp-1 for more bottom(you won;t need that)

Jp-3 works well too.

xxxx

I happen to see him at the JBRL races, even though hes too busy working on his own, and rhonda's buggy n truggy too.. So I rather not bother him at the tracks on race days. But since that I am moving closer, for a job, I am sure I will run into him at Reveloution, Thunder Alley tracks.. hopefully if i am there at right time, right day. I am looking to get another grp 21 tuner engines for spare and backup. but damn glow plugs, why are they so expensive.;

I'll be coming out to the Sidewinder and I'll be glad to help ya out.

Listen, Adam does not mind. It's his job to help you. So go get him to help you. yes, sometimes he may be busy but he will help ya asap.

;)

alright, so your going to the sidewinder nitro explousion... doesnt it require ROAR membership?

by the way im not great with tuning, because I am hearing impared (lost hearing when young) I have my team buddies from Matrix concepts do the tuning.. I worry that its messin the motor up!

Wow nothing like going right to the source! Thanks man

If you saw the track I race on you would laugh at me for using a .28. I mean a strong running .15 would likely suffice. But I want a quality engine and I can't see paying the same price and getting less power. There are also some very large tracks near me too, and I'll be able to uncork her!

Revo-daddy,

If your interested, let me know.

Thanks.

GRP .28 Promo Kit