RE: RC Car Actions "How to port a Nitro Engine"

RE: RC Car Actions "How to port a Nitro Engine"
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RE: RC Car Actions "How to port... - 2/13/2008 8:18:17 PM

Colt4g63

Posts: 260
Joined: 4/30/2005
From: New Albany, IN, USA
Status: online

I honestly dont like to dyno others engines. It is a big liability for my small business.. Even if one person says they dont care if the engine blows... Well that could all change when they realize they just lost a 350$ engine... So its something I steer away from. I use my dyno for what I bought it for and thats for my own R&D for engine modifications that I sell to customers. Now I test a few peoples engines that I know VERY well. I will test manufatures engines if they give them to me for the test.. I just dont like to be responsible for others/customers engines. Dyno testing can get ALOT more expensive then people realize... It can be very time consuming and the plugs and fuel alone add up FAST. That and im using a 6,000$ X-Dyno that has to get paid for somehow

Im sure you all can understand where im coming from. Now I do post results of some of the engines I test from time to time. I do this to let people see what im putting out to my customers and to let them know when they go through AB Mods there getting there $s worth on PROVEN engine modifications.

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X-Dyno equipped

(in reply to supertib)

Post #: 451

RE: RC Car Actions "How to por... - 2/13/2008 8:38:27 PM

SManMTB

Posts: 4830
Joined: 4/28/2005
From: Charlottesville, VA, USA
Status: online

There's another package called EngMod2T made by a South African which is supposed to be a bit better than MOTA but I haven't been able to find it. The price was around $400 (I assume US).

(in reply to Colt4g63)

Post #: 452

RE: RC Car Actions "How to port a... - 3/11/2008 1:06:34 PM

discocomedy

Posts: 2
Joined: 8/7/2006
From: Harvey, IL, USA
Status: offline

has anyone modded an os .18 tz? if so could you please post some pictures that I can use as a guide

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Post #: 453

RE: RC Car Actions "How to por... - 3/11/2008 9:01:31 PM

yappyzk

Posts: 65
Joined: 9/21/2007
From: , FL, USA
Status: offline

hmm someone tell me if somthing is wrong ( well obviously )...
i modded my inferno gt stock engine, when putting back together the conrod looks like its hitting against the crankcase. is that normal? and now when pull starting, it feels like extra compression or somthing.
( i havn't started engine, just tried to pull to see how it felt ).

(in reply to discocomedy)

Post #: 454

RE: RC Car Actions "How to por... - 3/11/2008 10:16:57 PM

yappyzk

Posts: 65
Joined: 9/21/2007
From: , FL, USA
Status: offline

never mind, i fixed the problem. i had the thing on the wrong side.

(in reply to yappyzk)

Post #: 455

RE: RC Car Actions "How to por... - 3/13/2008 3:20:43 PM

Codeblack

Posts: 1278
Joined: 8/16/2006
From: Toronto, ON, CANADA
Status: offline

quote:

ORIGINAL: yappyzk

never mind, i fixed the problem. i had the thing on the wrong side.

lol. silly.

i have a question.

my buddy told me this story about how he put the sleeve 180degrees from the way its supposed to be put in... so the exhaust was at the intake..

the engine ran somehow.. how and why i have no idea. guess the intake/exhaust geometry wasnt that different, ha? has anyone else had this happen to them?? seemed like freak-show when i first heard about it.

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Post #: 456

RE: RC Car Actions "How to por... - 3/16/2008 2:49:13 PM

yappyzk

Posts: 65
Joined: 9/21/2007
From: , FL, USA
Status: offline

haha, omg my engine is screaming as hell.... i havn't even touched the crankshaft yet..... everyone should try this if you dont got any $$ to buy a new engine ( but becareful or you'll end up buying a new one haha )
.. just AMAZING.. feels like a completely NEW engine
thing screams

(in reply to Codeblack)

Post #: 457

RE: RC Car Actions "How to por... - 3/17/2008 2:41:33 AM

dayglo

Posts: 129
Joined: 10/9/2007
From: m, WI, USA
Status: offline

yes this porting does do wonders to motors. did a sh.28 over the winter and it is pretty crazy. it isn't over crazy though. the motor is pretty smooth too. off the line it gets up and goes. top end could be better but i think i'll try a 14 tooth clutch bell because it has enough torq anyway. for a cheap engine it definetly woke up.

(in reply to yappyzk)

Post #: 458

RE: RC Car Actions "How to por... - 3/28/2008 10:22:13 PM

yappyzk

Posts: 65
Joined: 9/21/2007
From: , FL, USA
Status: offline

has anyone ever lost the little e-clip that holds the pin and the conrod onto the piston?
i've lost mine, where can i get one? or wut to use as a substitute?

(in reply to dayglo)

Post #: 459

RE: RC Car Actions "How to por... - 4/28/2008 2:39:06 AM

aftershockAL

Posts: 90
Joined: 3/16/2008
From: virginiatown, ON, CANADA
Status: offline

wow this really is awsome i cant wait to try this with my engine! hopefully ill do it at the end of summer or right near the beggining of next summer that way im not anxiouse to try it

(in reply to yappyzk)

Post #: 460

RE: RC Car Actions "How to por... - 4/29/2008 3:49:39 PM

mr_kentu

Posts: 4
Joined: 4/11/2008
From: perth, AUSTRALIA
Status: offline

hi everyone, i just hav a look at all of the previous page, and just a bit confused, which one of the sleeve port that should i follow?
some of them just port the standard hole available, and some of them make some new hole there, what im thinking, the more hole we make, will result in less compression isnt it?
another think, if me make some new hole, if we do not make some new port on the crank case, thats means noting and hav no effect at all right?
anyone hav the best pic of sleeve port complete with crank case port (m using force .15).
cheers.

(in reply to aftershockAL)

Post #: 461

RE: RC Car Actions "How to por... - 5/4/2008 6:54:24 PM

brianr34

Posts: 3
Joined: 2/14/2007
From: marysville, OH, USA
Status: offline

I was interested in doing my first porting job on a Novarossi N21B. If anyone has suggestions on what porting I should do, I would appreciate it. Has anyone modified this sleeve and/or crank and could put some pictures on here? Does anyone have pictures of a Hotmod N21B sleeve that they could post on here?

I was also considering trying to port a Sportwerks 21V2. If anyone has any experience porting that engine, I would also appreciate any input or pictures.

Thanks

< Message edited by brianr34 -- 5/4/2008 8:23:41 PM >

(in reply to mr_kentu)

Post #: 462

RE: RC Car Actions "How to por... - 5/4/2008 11:47:11 PM

JB COMP

Posts: 4194
Joined: 11/23/2006
From: Navarre, FL, USA
Status: offline

Here's my latest engine. LMK what you think
[image][/image]

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(in reply to brianr34)

Post #: 463

RE: RC Car Actions "How to port a Nitro Engine" - 5/27/2008 11:57:08 PM

srad750c

Posts: 16
Joined: 1/27/2008
From: Durham, NC, USA
Status: offline

he can you send me copies of the rginals....srad750c@hotmail.com">orginals....srad750c@hotmail.com

(in reply to BCSavage)

Post #: 464

RE: RC Car Actions "How to port a Nitro Engine" - 5/28/2008 11:00:36 AM

bluesilver

Posts: 15
Joined: 6/12/2007
From: -, AUSTRALIA
Status: offline

G'Day JB COMP

What engine are these from?
It looks like the Traxxas 3.3 motor.
Is this correct?

If so how has these mods effected the mid and top end performance?

Thanks.

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(in reply to srad750c)

Post #: 465

RE: RC Car Actions "How to port a Nitro Engine" - 6/1/2008 4:44:03 PM

skyline510

Posts: 13
Joined: 12/1/2007
From: Charlottetown, PE, CANADA
S