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Author Topic:   1.6 Rockers question?
posted November 25, 2003 09:43 PM
Would putting 1.6 rockers on the exhaust valves on a hobby stock gain you anything or just be a waste? Thanks

posted November 25, 2003 11:32 PM
Should give you a couple more inches of vaccum.


dan ferry
posted November 26, 2003 07:19 PM
i think you will gain some exhaust flow if your using stock manifolds and small pipes. as far as vacuum i dont know that it would help that on the exhaust side.this is all going to depend on the profile of your cam anyways. if you already have a higher lift and longer duration on the exhaust you dont want to add anymore too much kills torque and will cause over scavenging and increase exhaust temps. i suggest looking on isky cams website under tech tips and is longer exhaust duration nessisary. just my opinion.

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