RE: Nitro Engine Hotrodding  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> RE: Nitro Engine Hotrodding
Page: <<   < prev  1 [2]

Login
Message << Older Topic   Newer Topic >>
RE: Nitro Engine Hotrodding - 12/18/2007 3:35:10 AM   
SManMTB



Posts: 4965
Joined: 4/28/2005
From: Charlottesville, VA, USA
Status: offline
quote:

ORIGINAL: violator74

The screw is on the engine block near the base of the carb, and for what I can tell it serves no purpose at all. I'll post some pics of it soon as well as my "handy-work" so far



Dude, that's the screw that prevents the carb from falling off.

(in reply to violator74)
       Post #: 26

RE: Nitro Engine Hotrodding - 12/18/2007 3:46:44 AM   
nothinbetr2do


 

Posts: 2512
Joined: 2/27/2006
From: elkton, MD, USA
Status: offline

_____________________________

just say no to "shelf queens"

(in reply to SManMTB)
       Post #: 27

RE: Nitro Engine Hotrodding - 12/18/2007 5:41:58 AM   
Jim8ightT



Posts: 92
Joined: 11/15/2007
From: cohoes, NY, USA
Status: offline

_____________________________

If it aint rubben you aint dubben

(in reply to nothinbetr2do)
       Post #: 28

RE: Nitro Engine Hotrodding - 12/19/2007 3:02:01 AM   
sevacko


 

Posts: 30
Joined: 2/10/2007
From: transfer, PA, USA
Status: offline 		what would happen if you moved the location of the pin on the crank side making it like a stroker motor or making a longer c.rod or milling the bottom side of the head button that would give you more cp. ratio but will make more cyl psi that means you would have to run a higher % nitro fuel

(in reply to SManMTB)
       Post #: 29

RE: Nitro Engine Hotrodding - 12/19/2007 4:18:26 AM   
SManMTB



Posts: 4965
Joined: 4/28/2005
From: Charlottesville, VA, USA
Status: offline 		I'm leaving this thread.

(in reply to sevacko)
       Post #: 30

RE: Nitro Engine Hotrodding - 2/25/2008 3:26:14 AM   
violator74


 

Posts: 24
Joined: 9/16/2007
From: chardon, OH, USA
Status: offline 		Fine! Go!

Just kidding I've been absent from this thread because it's winter here in Ohio and there's nothing I can do right now to test my work but here's what I've done so far.

I have modified the crankshaft with 5 spiral grooves going through the center to better atomize the air/fuel charge.
I have smoothed out the crankcase below the carb to try to get more flow into the crankshaft.
I cc'd the head, then cut spirals into the head to get more swirl, then re-cc'd the head and shaved the crankcase to get the same compression ratio.
I polished the exhaust ports and ported the sleeve to get better exhaust flow.
I designed and fabricated a custom header exhaust pipe tuned to the max rpm I'm trying to achieve. (fuel pressure may be an issue though)
I've modified the cylinder head to cool better so that I can run a leaner mixture.
I've removed any unnecesary B.S. from the engine (pull-start and related).
I've spaced the carb up 1/2 inch, but I don't know if it's going to make a damn bit of difference.

The only other thing that I want to try is to fabricate an accelerator pump to feed into that useless screw hole (and it definetly serves NO purpose!) to slightly richen the mixture when you stab the throttle.

I'll let you know this spring if it payed off or blew up!





_____________________________

If it's got t+t's or tires, it's gonna give you trouble!

(in reply to SManMTB)
       Post #: 31

RE: Nitro Engine Hotrodding - 2/25/2008 3:31:20 AM   
JB COMP



Posts: 4276
Joined: 11/23/2006
From: Navarre, FL, USA
Status: offline 		where the pictures?

_____________________________

LX Comp: STS21B, JP-3, DX3.0 - CRT: STS 30 Rev2 or Mach 427, STS 0702, DX3.0 - T-maxx: TRX2.5
Airtronics. BlueBird.

(in reply to violator74)
       Post #: 32

RE: Nitro Engine Hotrodding - 2/25/2008 3:46:36 AM   
UG0TB4NN3D


 

Posts: 1342
Joined: 11/6/2007
From: Jonesborough, TN, USA
Status: offline 		That screw holds the carb on. If you take it out, the carb will be pretty loose, not like it would fall out, but it would be a lot more loose than normal, and might change positions when you connect it to the throttle servo.

_____________________________

<s>Jammin'''''''' X1 CRT Pro, BCE PJX Chassis + Small Spur mod, Ninja .28 Powered, Spektrum DX 2.0M</s> - <b&

(in reply to JB COMP)
       Post #: 33

RE: Nitro Engine Hotrodding - 2/26/2008 2:48:38 AM   
pur3evil


 

Posts: 99
Joined: 9/4/2006
From: Boise, ID, USA
Status: offline 		Actually, I know the Hyper .21 had an optional boost bottle backplate. The screw he's talking about may very well be plugging the hole for the boost bottle.

As for the Nitrous thing, it's been done. Not sure if they're still around, but the company was called Jag RC:

http://www.youtube.com/watch?v=EW1fBR3YiuI&feature=related

Looks like Nitrous Express has a RC Nitrous kit as well:

http://www.nitrousexpress.com/Images/Installs/Savage/rc_nitrous_install.htm

-Howard

(in reply to UG0TB4NN3D)
       Post #: 34

Page:   <<   < prev  1 [2]
All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> RE: Nitro Engine Hotrodding
Page: <<   < prev  1 [2]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

0.720RCU2