boyseen intake,custom carbon reeds in rad valve vs vf2 reed cages

[masterblaster]

Switched out from boyseen rad valves to vf2 in a boyeseen intake right before wavedaze.I had prevous problems with wearing out the rad valve tripple stage reeds,mostly the last stage on the bottom,I had some custom last stage carbons made from carbontech "same company as boyeseen" These lasted much longer. This manifold,well most manifolds with rad valve leave a much smaller gap on the top between the cases.Since these reeds dont use a stop like the stockers,they get worked over pretty quick. I grinded down some vf2 reeds to fit in the case and used a sealing spacer to center them up in the intake of the cases,seems to have significantly increased flow.
Here are some pics of the reeds in some stock cases I had laying around to shoot photos,they look much better in big ported cases,but those were already in the ski. Anyone else try this with other manifolds? Disregard second photo,its impossible to edit these once placed it seems...

 

[masterblaster]

do th vf3 use the same angle in the manifold?

 

[masterblaster]

anyone have pics of the vf3 in the mani?

 

[zimmy]

Send me that chamber!

 

[JoeD]

Since your talking about replacement reeds for the boyesen intake..has anyone tried the jetworks replacements?

 

[NVJAY775]

Subscribing

 

[masterblaster]

Since your talking about replacement reeds for the boyesen intake..has anyone tried the jetworks replacements?

you are talking about the m16 reeds from jetworks? Ive heard good things about them but not tried them. The carbontechs are made by boyeseen,So I had their tech cut me some 3rd stage out of the carbontech material. They last far longer. But with the rad valve and its angle on the bottom of the mainifold they still take a beating with no reed stops.bringing this angle down seems to help,but the vf2 still work much better long term.

 

[JoeD]

Not sure about the m16?
These
jetworksperformance.com/?p=421

 

[masterblaster]

solid bottom reed is probally what it takes for this design rad valve to not gap the bottom pedals open. VF2 still look like they flow at a better angle with epoxied intake ramps in the 62t cases and angled porting up to the transfers