FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: Hipopinto on June 17, 2020, 07:21:00 AM

Title: Tunnel port
Post by: Hipopinto on June 17, 2020, 07:21:00 AM

Hey all

Another question that’s more for reference

How do tunnel port heads breathe?

Are they better than traditional style ports?

Dave

Title: Re: Tunnel port
Post by: blykins on June 17, 2020, 07:47:31 AM

They breathe a lot better when you close the CSA up.  Raising the floor of the port with some port shaping will net a 380cfm port that's smaller than the original. 

Only issue is the big honkin tube going down through the intake manifold, but a worked TP head will support big horsepower. 

Title: Re: Tunnel port
Post by: Eken1 on June 17, 2020, 01:44:11 PM

Anyone have any thoughts or experience with flowing tunnel port heads with Jay's intake adapter attached and Trick Flow style port flow vane modifications?