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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC 1/8th Scale Buggies >> THE P5 THREAD
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THE P5 THREAD - 3/10/2005 9:44:54 PM   
zzman



Posts: 1630
Joined: 6/29/2004
From: KEWANEE, IL, USA
Status: offline 		I saw where someone took one of the silver shims out of their P5 and said it worked fine.there is 2 silver and 1 copper, has anyone done this? I was thinking of doing this and i just wanna make sure it will be fine. i run 20%maxys fuel. it has about 3 gals run on it. its the Novarossi TOP P5.


If you have anything you want to post about your P5 just use this thread.

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IN THIS HOBBY-MONEY SOLVES EVERYTHING!
       Post #: 1

RE: THE P5 THREAD - 3/10/2005 10:46:44 PM   
MassiveMods



Posts: 1561
Joined: 11/23/2003
From: SydneyNSW, AUSTRALIA
Status: offline 		i have just removed the copper one from my P5, i also replaced all the bearings and crank, got a lightened filled crank from a main hobbies.. the crank gives the car a different power band.. its more linear, the original crank i modded (along with the rest of the engine ) had way too much bottom end ... i was shredding clutch bells , tires were wearing out in one race .. it was mayhem !!

I also noticed the difference without the copper shim.. its got nice torque. more economical now too, i get up to 11 min on a tank in "semi serious" mode and about 9 min in "i wanna win" mode

also running a hyper front bearing and a boca ceraminc rear bearing.. very smooth !! the hyper front bearings are pretty good especially the ones with " made in Japan " written on them ...

Oh i forgot to tell you , i run the P5 with a hyper piston and rod .. stronger than the rossi ones ive found..

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www.massivemods.com Specialising in Engine Mods, Superior Quality Racing Fuels, Australian Go Engine distributor/developer.

(in reply to zzman)
       Post #: 2

RE: THE P5 THREAD - 3/10/2005 10:55:10 PM   
had enough



Posts: 3616
Joined: 1/29/2002
From: From LA to Avon Lake, OH, USA
Status: offline 		Wow,
is that all Dr. Frankenstien?
If I send you al my old stuff could you bring my old h21 back to live?

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       Post #: 3

RE: THE P5 THREAD - 3/10/2005 11:44:29 PM   
zzman



Posts: 1630
Joined: 6/29/2004
From: KEWANEE, IL, USA
Status: offline 		WOW holy massivemod great info man. i have a rex and top. the rex is still in the box. not for long though i just put some motor mounts on it - the top runs strong -just looking for that little extra. do you have a link to the crank and bearings? or some part #'s? thanks man ill put the silver one back in and take the copper shim out

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IN THIS HOBBY-MONEY SOLVES EVERYTHING!

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       Post #: 4

RE: THE P5 THREAD - 3/11/2005 2:07:36 AM   
SKYLINE350GT


 

Posts: 2069
Joined: 6/26/2004
From: , FL, USA
Status: offline 		Hyper- don't take the copper shims out of your motor. Massivemods is runn a frankenstein motor and may have had good luck with reducing deck height, but if you take out that copper shim on your P5- you will likely have detonation and experience the opposite of what massive mods is saying. You will have decreased fuel mileage along with detonation and eventually a ruined motor.

(in reply to zzman)
       Post #: 5

RE: THE P5 THREAD - 3/11/2005 3:59:23 AM   
zzman



Posts: 1630
Joined: 6/29/2004
From: KEWANEE, IL, USA
Status: offline 		thanks SKY! you da man...

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       Post #: 6

RE: THE P5 THREAD - 3/11/2005 4:24:34 PM   
MassiveMods



Posts: 1561
Joined: 11/23/2003
From: SydneyNSW, AUSTRALIA
Status: offline
quote:

ORIGINAL: had enough

Wow,
is that all Dr. Frankenstien?
If I send you al my old stuff could you bring my old h21 back to live?


send me anything you like, id be happy to work on an engine for you scale !! especially if it means being a Frankenstein !! HA hahaahaaa !! Mwahha ahaha !!


_____________________________

www.massivemods.com Specialising in Engine Mods, Superior Quality Racing Fuels, Australian Go Engine distributor/developer.

(in reply to had enough)
       Post #: 7

RE: THE P5 THREAD - 3/11/2005 4:30:08 PM   
MassiveMods



Posts: 1561
Joined: 11/23/2003
From: SydneyNSW, AUSTRALIA
Status: offline
quote:

ORIGINAL: SKYLINE350GT

Hyper- don't take the copper shims out of your motor. Massivemods is runn a frankenstein motor and may have had good luck with reducing deck height, but if you take out that copper shim on your P5- you will likely have detonation and experience the opposite of what massive mods is saying. You will have decreased fuel mileage along with detonation and eventually a ruined motor.



actually taking the copper shim out is a common tuning tool.. its the thinnest shim on the engine and designed to be taken out if so desired. Id measure your crank pin if it comes in at about 5 to 5.1 mm then you are safe to do it, you rbearings need to be in good order too before playing with clearence..

You can get ceraminc hybrid bearings or normal ones from A Main Hobbies, www.amainhobbies.com really nice people , Skyline put me onto them..

_____________________________

www.massivemods.com Specialising in Engine Mods, Superior Quality Racing Fuels, Australian Go Engine distributor/developer.

(in reply to SKYLINE350GT)
       Post #: 8

RE: THE P5 THREAD - 3/11/2005 5:06:58 PM   
SKYLINE350GT


 

Posts: 2069
Joined: 6/26/2004
From: , FL, USA
Status: offline 		I know messing with the head clearance is a common tuning tool. BUT reducing deck height doesnt increase fuel mileage, it reduces, and asks for detonation. Yes reducing a copper shim is good if your running a colder plug or lower nitro content fuel ie 20% but when running 30% and stock P5 the deck height is usually just right if not too low- when another thin copper shim could be called for.

(in reply to MassiveMods)
       Post #: 9

RE: THE P5 THREAD - 3/11/2005 5:24:10 PM   
had enough



Posts: 3616
Joined: 1/29/2002
From: From LA to Avon Lake, OH, USA
Status: offline 		the stock p-5 runs so good why mess with it?
FYI,
I have two freinds that bought the mod p5s from Nitrohouse, they were on sale a while back for around $300, I don't know who was doing the Mods, but they both broke right after break in,,,very strange. They sent them back so we'll see what nitrohouse does to make it right.

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       Post #: 10

RE: THE P5 THREAD - 3/11/2005 11:06:12 PM   
MassiveMods



Posts: 1561
Joined: 11/23/2003
From: SydneyNSW, AUSTRALIA
Status: offline 		wow what broke on them ? was it the piston or rod ? .. When using a modded engine you need to use a different running procedure as they are high performance machine, they need different care procedure, most important long warm up periods.. and cool down 's as well..

Reducung clearance dosent reduce mileage. and detonation either premature or latent can be fixed with using the right plug. you can use 30% nitro , with the copper shim out and a medium plug with no hassles, you will get pre detonation if the sleeve is modded in which case you use a hotter plug.

Modding engines is a personal preferance, If done correctly will run better than a stock engine, better power, fuel economy and temps..

_____________________________

www.massivemods.com Specialising in Engine Mods, Superior Quality Racing Fuels, Australian Go Engine distributor/developer.

(in reply to had enough)
       Post #: 11

RE: THE P5 THREAD - 3/11/2005 11:23:17 PM   
had enough



Posts: 3616
Joined: 1/29/2002
From: From LA to Avon Lake, OH, USA
Status: offline 		If I remember correctly the piston broke at the wrist pin.
I'll ask them tomorrow again

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Don’t give me your attitude,
I already have one

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       Post #: 12

RE: THE P5 THREAD - 3/11/2005 11:48:27 PM   
atomicjtr



Posts: 221
Joined: 2/8/2005
From: San Diego, CA, USA
Status: offline 		Which P5 do you guys think are better as far as durability and torque are concerned? Top or Rex.


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Car: Kyosho K3
Engine: Rex P5

(in reply to had enough)
       Post #: 13

RE: THE P5 THREAD - 3/11/2005 11:50:51 PM   
had enough



Posts: 3616
Joined: 1/29/2002
From: From LA to Avon Lake, OH, USA
Status: offline 		they are both the same,,just different color heads

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       Post #: 14

RE: THE P5 THREAD - 3/12/2005 2:29:18 AM   
MassiveMods



Posts: 1561
Joined: 11/23/2003
From: SydneyNSW, AUSTRALIA
Status: offline
quote:

ORIGINAL: had enough

If I remember correctly the piston broke at the wrist pin.
I'll ask them tomorrow again



yeah i had 2 wrist pins go on me, they are really thin for an engine of such grunt, thats why i use a hyper 8 port Piston and rod, heavier cast.. i had 2 rossi pistons