Back to normal

[LGAFF]

Hard to believe this combo lost power:

Inside of Frankenplenum:

http://i134.photobucket.com/albums/q115/lgaff/DSCN6374.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6374.jpg.html)
http://i134.photobucket.com/albums/q115/lgaff/DSCN6375.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6375.jpg.html)
Stock
http://i134.photobucket.com/albums/q115/lgaff/DSCN6378.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6378.jpg.html)


Siamese Runner....
http://i134.photobucket.com/albums/q115/lgaff/DSCN6376.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6376.jpg.html)
http://i134.photobucket.com/albums/q115/lgaff/DSCN6379_2.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6379_2.jpg.html)

[LGAFF]

Back to a ported plenum and IHs with sinuses

http://i134.photobucket.com/albums/q115/lgaff/DSCN6383.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6383.jpg.html)

http://i134.photobucket.com/albums/q115/lgaff/DSCN6384.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6384.jpg.html)

[LGAFF]

Heads are still siamesed 1" down the runner
http://i134.photobucket.com/albums/q115/lgaff/DSCN6381.jpg (http://s134.photobucket.com/user/lgaff/media/DSCN6381.jpg.html)

[mgbrv8]

My guess would be the transition into the runner if you have a large fillet or radius there it would help alot. Also how much tuning did you try with the modded plenum??

Dave Hetrick

[LGAFF]

I don't think tuning could have gotten me anywhere but back to where I was before. The runners inlet radius was much smoother than stock

[mgbrv8]

I was referring to the transition just spit balling

:cheers:

Dave Hetrick



I don't think tuning could have gotten me anywhere but back to where I was before. The runners inlet radius was much smoother than stock