R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 01-01-2010, 10:34 AM   #1
Tech Adept
 
Join Date: Apr 2009
Posts: 190
Trader Rating: 1 (100%+)
Default just a lil more nova p5xlt brake in help please

i am to the point where im starting to turn some needles on this thing and have noticed that even at half to 3/4 throttle (in short slow burst) the engine is screaming (tacking out). is this normal for this engine or nova's in general,i used to run a c-6 and that thing moved,i have been told this engine will not perform as well as the c-6 but it already seems why behind.there is two things i have changed on this engine and maybe they are why it seems to be tacking out, one is i went from a 1.0 clutch springs to the .9 on this engine and the other is the pipe,went from the 2045 to the 086.will they or one of them make a differance? does anyone have some answers for me,im sure the p5 will get better(i hope)or maybe i have been spoiled. thanks
bigguyrc8 is offline   Reply With Quote
Old 01-01-2010, 11:17 AM   #2
Tech Prophet
 
houston's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2004
Location: portland OR
Posts: 15,088
Trader Rating: 91 (100%+)
Default

Quote:
Originally Posted by bigguyrc8 View Post
i am to the point where im starting to turn some needles on this thing and have noticed that even at half to 3/4 throttle (in short slow burst) the engine is screaming (tacking out). is this normal for this engine or nova's in general,i used to run a c-6 and that thing moved,i have been told this engine will not perform as well as the c-6 but it already seems why behind.there is two things i have changed on this engine and maybe they are why it seems to be tacking out, one is i went from a 1.0 clutch springs to the .9 on this engine and the other is the pipe,went from the 2045 to the 086.will they or one of them make a differance? does anyone have some answers for me,im sure the p5 will get better(i hope)or maybe i have been spoiled. thanks
If the engine is new , give it time.

After about a gallon then you will see what the engine will do.

Comparing any engine to a c6 is like comparing a .12 to a high revving .28 :-)
__________________
TEAM FUSION X ENGINES / TEAM BYRON ORIGINALS / TEAM PROLINE RACING TIRES / TEAM SICK GRAPHICS /TEAM KYOSHO / things I support: COMP HEAT DEALER /TEAM LUNSFORD/ FUSIONX™ USA / TEAM KYOSHO / "H.E.S."™ / BYRON FUELS / RC-OMGUSA/KICWEBDESIGNZ/AKA TIRES/PROLINE RACING TIRES /RAYA RACING/BUKU POWER CLUTCH/M2CRACING/special thanks to STAV and JIM HOTTIGREENMOUNTAINGRILLS.COM
houston is offline   Reply With Quote
Old 01-01-2010, 03:39 PM   #3
Tech Elite
 
merdith6's Avatar
 
Join Date: Oct 2009
Location: Brazoria, TX
Posts: 2,350
Trader Rating: 3 (100%+)
Default Great engine...

It takes forever to break in a p5, be patient, and if it's toping out too soon, you have the top end too lean anyway. it will go faster with more fuel, I know it sounds dumb, but more fuel bigger fire. As it breaks in it frees up and more fuel can be burned so try it, and see.....Put the short header on it too, if you didn't.....If you still aren't happy then gear up, it has enough torque to gear up one tooth, you may like it.....
__________________
Mad Dog drives a Mugen MBX-7, Novarossi engines, Clockwork Racing, Futaba radio, AKA/Proline Tires
merdith6 is offline   Reply With Quote
Old 01-01-2010, 04:18 PM   #4
Tech Elite
 
Join Date: Aug 2006
Location: SOMEWHERE LUVIN ME SOME RC
Posts: 2,905
Trader Rating: 61 (100%+)
Default

mine has been all i hoped for during break in ..i ran 20%/12% for break in ..3 quarts ....i have reshimmed the head to .80 for the 30% that i will continue running ...im running a 9853/41021 and a 97t odo plug ...at the 3/4 gallon mark it is inevitable that after the next few bottles it will be a monster ...i will be running it at the colonels winter classic in savannah in 3 weeks ....as houston said these engines really need a full gallon on them before you really start to see the way it will act ...thats really any nitro motor except maybe an o.s .
__________________
LATER COOKIE

TEAM REDS RACING ENGINES USA
TEAM PROLINE-RACING
TEAM RC AMERICA/XRAY/HUDY
zixxer is offline   Reply With Quote
Old 01-01-2010, 08:00 PM   #5
Tech Elite
 
merdith6's Avatar
 
Join Date: Oct 2009
Location: Brazoria, TX
Posts: 2,350
Trader Rating: 3 (100%+)
Default So true....

I like your style.....
__________________
Mad Dog drives a Mugen MBX-7, Novarossi engines, Clockwork Racing, Futaba radio, AKA/Proline Tires
merdith6 is offline   Reply With Quote
Old 01-01-2010, 08:11 PM   #6
Tech Adept
 
littlelane's Avatar
 
Join Date: Jan 2009
Location: vinita ok
Posts: 198
Trader Rating: 1 (100%+)
Default

as stated be patient on the break in and it will be plenty most novas do take awhile
__________________
kyosho strr
Power House Mods
Cold Fusion RC Products/Team Driver
littlelane is offline   Reply With Quote
Old 01-01-2010, 08:39 PM   #7
Tech Apprentice
 
2tap's Avatar
 
Join Date: Dec 2009
Location: Denver Colorado
Posts: 90
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by bigguyrc8 View Post
i am to the point where im starting to turn some needles on this thing and have noticed that even at half to 3/4 throttle (in short slow burst) the engine is screaming (tacking out). is this normal for this engine or nova's in general,i used to run a c-6 and that thing moved,i have been told this engine will not perform as well as the c-6 but it already seems why behind.there is two things i have changed on this engine and maybe they are why it seems to be tacking out, one is i went from a 1.0 clutch springs to the .9 on this engine and the other is the pipe,went from the 2045 to the 086.will they or one of them make a differance? does anyone have some answers for me,im sure the p5 will get better(i hope)or maybe i have been spoiled. thanks

"the engine is screaming (tacking out). is this normal for this engine or nova's in general"

This kind of question is imposable to answer without hands on but here are a few thoughts.

You went with lighter C springs, so assume the C is locking IF it is working correctly.
My first guess would be the C is slipping. Or even the flywheel.
This is a change you made at the same time as the engine swap.? If yes, this is a no no. One change at a time.
Check this first.

The pipe difference will have an affect but shouldn't be radical.
Don't think it's the pipe.

The "screaming (tacking out)" tells me SOMETHING is slipping. If not the C check the rest of the drive line.

Like houston said.......If the engine is new , give it time.
You don't want to hear it go TING!!
2tap is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 03:30 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net