treynor
Enthusiast
It has become common knowledge that the '00+ Vipers do not respond as well to exhaust mods as do the pre-'00 cars. This is presumed to be a result of the milder cam. I would very much like to see dyno results from someone adding 1.7 roller rockers to an otherwise bolt-on only '00+ car (i.e., no heads, no cam). I suspect most of the HP deficit seen in headers+exhaust '00+ cars would disappear with the addition of these rockers, as the increased lift and duration would negate most of the effects of the milder cam. It's certainly a less radical, and much less expensive, change than swapping heads.
Anyone game (Wayne, where are you) ? For that matter, are there any tuners out there who have tried adding just 1.7 rockers, and would be willing to share results?
Anyone game (Wayne, where are you) ? For that matter, are there any tuners out there who have tried adding just 1.7 rockers, and would be willing to share results?