Y PIPE

[Dave Haddon]

Are there any facts as to a comparison between an after market Y pipe with flowmaster exhaust with resonator delet vs the install of a true dual exhaust system.?
Can I get some opinion from al the lads out there that might have some insight Knowledge....Thanks

 

[Bigskyroadglide]

I'd like to see anything as well. Be interesting

 

[Black1500Ram]

I mean from a fluid dynamics pov, as long as sizing of pipes is optimized, (I.e 2.25” Y’d into 3”… vs true dual 2.25”), velocity should remain similar, scavenging may be altered but not much that far down the line after the collectors… sound will be marginally different (less smooth) since each bank will have 1/2” the pressure waves in a dual setup vs the y’d.

The biggest factor for power imo is proper sizing to keep velocity.

 

[Wild one]

I mean from a fluid dynamics pov, as long as sizing of pipes is optimized, (I.e 2.25” Y’d into 3”… vs true dual 2.25”), velocity should remain similar, scavenging may be altered but not much that far down the line after the collectors… sound will be marginally different since each bank will have 1/2” the pressure waves in a dual setup vs the y’d.

The biggest factor for power imo is proper sizing to keep velocity.

Not much scavenging effect with the stock cast iron manifolds.The scavenging effect occurs at the collectors on a set of long tubes,after that you want just enough pipe diameter to keep the flow /velocity up. A big single system will usually produce better results on a stock engine then a set of dual pipes will

 

[Black1500Ram]

Not much scavenging effect with the stock cast iron manifolds.The scavenging effect occurs at the collectors on a set of long tubes,after that you want just enough pipe diameter to keep the flow /velocity up. A big single system will usually produce better results on a stock engine then a set of dual pipes will

True my brain automatically went to tubular. Cast is going to be turbulent regardless.