Marbling

redjay · 05-08-2011, 08:39 AM

Can someone remind me what marbling the hose in the right side air intake does ?

caddman11 · 05-08-2011, 09:09 AM

Helps keep from backfiring by stopping air into the manifold. This is mostly heard if using custom pipes.

**Cajunrider** · 05-08-2011, 09:21 AM

The reed valves introduce air into the exhaust system to allow any small amounts of unburned fuel to combust. You hear it with aftermarket pipes because they are not muffled and silenced as the OEM pipes are. Marbling blocks the air intake to the reed valves hence no air for the unburned fuel to detonate.

redjay · 05-08-2011, 12:28 PM

So if you dont have aftermarket pipes and no popping on decel you dont need to marble ?

VulcanE · 05-08-2011, 01:20 PM

That is correct John.

**Cajunrider** · 05-08-2011, 01:39 PM

Quote:

Originally Posted by redjay

So if you dont have aftermarket pipes and no popping on decel you dont need to marble ?

You have the popping John.....you just can't hear it as well with the OEM pipes.

Sin City Stan · 05-09-2011, 07:30 PM

Quote:

Originally Posted by redjay

So if you dont have aftermarket pipes and no popping on decel you dont need to marble ?

Marbeling will reduce the heat from the exhaust pipes also. Every time you down-shift to brake you are burning fuel in your exhaust pipes. I had a measurable difference when I marbelled my 1700.

Cooler pipes and the fan runs less.

bullman · 05-09-2011, 08:52 PM

Did this on my 03, no regrets...doesn't eliminate all popping, just gets rid of the annoying popping ;)

05-08-2011, 08:39 AM	#1
redjay Top Contributor Join Date: Feb 2008 Location: Ontario Posts: 6,931	Marbling Can someone remind me what marbling the hose in the right side air intake does ? Login or Register to Remove Ads
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05-08-2011, 09:09 AM	#2
caddman11 Advanced Member Join Date: Feb 2008 Location: Northwest Indiana Posts: 890	Marbling Helps keep from backfiring by stopping air into the manifold. This is mostly heard if using custom pipes.
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05-08-2011, 09:21 AM	#3
Cajunrider Join Date: Apr 2008 Location: (SE Louisiana) Posts: 8,340	Marbling The reed valves introduce air into the exhaust system to allow any small amounts of unburned fuel to combust. You hear it with aftermarket pipes because they are not muffled and silenced as the OEM pipes are. Marbling blocks the air intake to the reed valves hence no air for the unburned fuel to detonate. __________________ 2016 Electra Glide Ultra Limited CVO Palladium Silver / Phantom Blue 110 cu in SE 2012 Electra Glide Ultra Limited (Traded 6/22/16) Tequila Sunrise / HD Orange Vance & Hines true dual headers Rinehart 4" slip ons Screamin Eagle Super Tuner Screamin Eagle Stage 1 intake Dyno tuned H.O.G.# 4514015 2007 Nomad 1600 (Traded 6/23/12) VBA #482
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05-08-2011, 12:28 PM	#4
redjay Top Contributor Join Date: Feb 2008 Location: Ontario Posts: 6,931	Marbling So if you dont have aftermarket pipes and no popping on decel you dont need to marble ?
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05-08-2011, 01:20 PM	#5
VulcanE Sr. Member Join Date: Jan 2008 Location: Cartersville, Georgia Posts: 4,838	Marbling That is correct John. __________________ Cliff "VulcanE" Evans 2005 Blue & Silver 1600 Nomad VBA # 320 VROC # 20381 Login or Register to Remove Ads
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05-09-2011, 08:52 PM	#8
bullman Member Join Date: May 2010 Location: Painesville, Ohio Posts: 193	Marbling Did this on my 03, no regrets...doesn't eliminate all popping, just gets rid of the annoying popping ;)
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