Sterling...

$100T2 · 03-06-2008, 09:38 PM

How do you modify the Nikki? Not a step-by-step thing, I mean what changes do you make to it? And, since I'm pretty clueless about carbs, can you explain a bit of carb theory???

rx7carl · 03-06-2008, 09:48 PM

His site has a good explanation of the modded nikki.

Hope this isint too simplistic of a basic explanation.
http://static.howstuffworks.com/mpeg/chainsaw3.mpg

Accompanying article
http://auto.howstuffworks.com/question377.htm

warwickben · 03-09-2008, 09:49 AM

thats a good way to tell how a carb works. it works on the same idea of a vacuum(is that right sp?) hold down for a mill.

you have a T in a air line the air flows at the top of top of the t and it pull air from the bottom of the T causing a vacuum effect. but on a carb it pull's gas in to the motor.

Sterling · 03-09-2008, 12:55 PM

Pretty much.

It's called the "Venturi Effect", and it was first quantified by Daniel Bernoulli in the 18th century. Giovanni Venturi, a generation or so later, is credited with developing apparatuses to harness that pressure differential that occurs; Hence the "venturi".
Venturis are used for everything from carburetors to nuclear power plant cooling towers.

orion84gsl · 01-30-2009, 10:34 AM

Are you getting a modded Nikki or a Sterling. They are different.:P

Kentetsu · 02-01-2009, 07:29 PM

I don't believe Carl builds carbs. I think he did a lot of the R&D work along with Sterling, but the carbs are all built by Sterling. Yaw has been out of the business for many moons now.

Sterling · 02-03-2009, 09:31 AM

Yep. Yaw's out. I wish I knew what that guy knows.

csprx7 · 02-03-2009, 01:18 PM

Quote:

Originally Posted by Kentetsu

I don't believe Carl builds carbs. I think he did a lot of the R&D work along with Sterling, but the carbs are all built by Sterling. Yaw has been out of the business for many moons now.

Carl did. I have one on my '85 (was on my now departed SA).

orion84gsl · 02-11-2009, 09:01 PM

Better get your order in quick before Dennis gets too swamped. It's not an overnight deal, but it's worth the wait.

Sterling · 11-12-2009, 06:40 AM

The return orifice in the inlet banjo bolt must be blocked.
What kind of pressure are you putting through there?

Sterling · 11-12-2009, 08:53 PM

-What the level in the fuel bowls? It's very strange to see that.

Sterling · 11-12-2009, 09:12 PM

...I honestly can't even understand how that can happen. Basically the only way that can happen without the bores filling up is that all four fuel circuits would have to be completely blocked.

rx7carl · 11-14-2009, 05:30 PM

Is there also fuel dribbling out of the nozzles into the barrels?

rx7carl · 11-21-2009, 11:31 AM

Sure, it could simply be sticking floats. Happens all the time to carbs I've shipped. Tapping on the banjo bolts while the fuel pump is running usually unsticks them.

Kentetsu · 02-05-2010, 02:56 PM

Have you tried asking Sterling? Either email him, or go to his forum. He keeps telling people that, but I keep seeing these threads pop up....

03-06-2008, 09:38 PM	#1
$100T2 Big Daddy Join Date: Feb 2008 Location: Rhode Island iTrader: (2) Posts: 419 Rep Power: 17	Sterling... How do you modify the Nikki? Not a step-by-step thing, I mean what changes do you make to it? And, since I'm pretty clueless about carbs, can you explain a bit of carb theory??? __________________ Hell hath no fury like a rotor blown.

03-06-2008, 09:48 PM	#2
rx7carl Rotary Fan in Training Join Date: Mar 2008 Location: Orlando, Fl iTrader: (0) Posts: 59 Rep Power: 17	His site has a good explanation of the modded nikki. Hope this isint too simplistic of a basic explanation. http://static.howstuffworks.com/mpeg/chainsaw3.mpg Accompanying article http://auto.howstuffworks.com/question377.htm __________________ www.pbandjracing.com

02-01-2009, 07:29 PM	#6
Kentetsu RCC Contributor Join Date: Feb 2008 Location: Grand Rapids, Michigan iTrader: (1) Posts: 530 Rep Power: 17	I don't believe Carl builds carbs. I think he did a lot of the R&D work along with Sterling, but the carbs are all built by Sterling. Yaw has been out of the business for many moons now. __________________ "Learn from the past, or it will become your future...." '85 GS 12a + LSD/Sterling carb/Respeed coilovers/Respeed front swaybar/Respeed adj. rear spring perches/Illuminas/Bilsteins on rear AutoX vids @ http://www.youtube.com/user/Kentetsu1

11-14-2009, 05:30 PM	#13
rx7carl Rotary Fan in Training Join Date: Mar 2008 Location: Orlando, Fl iTrader: (0) Posts: 59 Rep Power: 17	Is there also fuel dribbling out of the nozzles into the barrels? __________________ www.pbandjracing.com

11-21-2009, 11:31 AM	#14
rx7carl Rotary Fan in Training Join Date: Mar 2008 Location: Orlando, Fl iTrader: (0) Posts: 59 Rep Power: 17	Sure, it could simply be sticking floats. Happens all the time to carbs I've shipped. Tapping on the banjo bolts while the fuel pump is running usually unsticks them. __________________ www.pbandjracing.com

03-09-2008, 09:49 AM	#3
warwickben sa rat rod Join Date: Mar 2008 Location: tewksbury ma iTrader: (4) Posts: 408 Rep Power: 17	thats a good way to tell how a carb works. it works on the same idea of a vacuum(is that right sp?) hold down for a mill. you have a T in a air line the air flows at the top of top of the t and it pull air from the bottom of the T causing a vacuum effect. but on a carb it pull's gas in to the motor.

03-09-2008, 12:55 PM	#4
Sterling Premium Vendor Join Date: Feb 2008 iTrader: (2) Posts: 74 Rep Power: 17	Pretty much. It's called the "Venturi Effect", and it was first quantified by Daniel Bernoulli in the 18th century. Giovanni Venturi, a generation or so later, is credited with developing apparatuses to harness that pressure differential that occurs; Hence the "venturi". Venturis are used for everything from carburetors to nuclear power plant cooling towers.

01-30-2009, 10:34 AM	#5
orion84gsl Rotary Fanatic Join Date: Mar 2008 iTrader: (0) Posts: 167 Rep Power: 17	Are you getting a modded Nikki or a Sterling. They are different.:P

02-03-2009, 09:31 AM	#7
Sterling Premium Vendor Join Date: Feb 2008 iTrader: (2) Posts: 74 Rep Power: 17	Yep. Yaw's out. I wish I knew what that guy knows.

02-11-2009, 09:01 PM	#9
orion84gsl Rotary Fanatic Join Date: Mar 2008 iTrader: (0) Posts: 167 Rep Power: 17	Better get your order in quick before Dennis gets too swamped. It's not an overnight deal, but it's worth the wait.

11-12-2009, 06:40 AM	#10
Sterling Premium Vendor Join Date: Feb 2008 iTrader: (2) Posts: 74 Rep Power: 17	The return orifice in the inlet banjo bolt must be blocked. What kind of pressure are you putting through there?

11-12-2009, 08:53 PM	#11
Sterling Premium Vendor Join Date: Feb 2008 iTrader: (2) Posts: 74 Rep Power: 17	-What the level in the fuel bowls? It's very strange to see that.

11-12-2009, 09:12 PM	#12
Sterling Premium Vendor Join Date: Feb 2008 iTrader: (2) Posts: 74 Rep Power: 17	...I honestly can't even understand how that can happen. Basically the only way that can happen without the bores filling up is that all four fuel circuits would have to be completely blocked.

02-05-2010, 02:56 PM	#15
Kentetsu RCC Contributor Join Date: Feb 2008 Location: Grand Rapids, Michigan iTrader: (1) Posts: 530 Rep Power: 17	Have you tried asking Sterling? Either email him, or go to his forum. He keeps telling people that, but I keep seeing these threads pop up....