Ok, I've seen countless threads with dyno's showing the HP and TQ benefits of plenum spacers. My question is, does anybody have any before spacer/after spacer times at the 1/4 mile? If not, do y'all know if a spacer will shave any tenths off? Of course I'm not expecting that a plenum spacer would lead to running in the 13's or anything, but I'm just wondering if the tiny boost in HP translates into faster times.

I apologized if this has been covered before, but I searched and couldn't find any info.

Thanks!

 

I will in a month or so I will. I'm like you, I want to see the real increase when it comes to mods. Dynos are great, but I want to see how it translates to track performance. Unfortunately, no one on this site seems to get a baseline and then test each specific mod.

My last time out at the track in October 05, I had the z-pipe and ran a handful of 14.3-14.4s@97-98mph. Back in February 06 I added the 5/16" spacer. I will be heading back to the same track and under similiar conditions (lower 50s, dry, 850'). I'll probably get in about 7 to 8 passes. I'll then correct all my slips for density altitude (DA) conditions, if needed, and compare them against my 10/05 slips. I'll look at the slips, increment by increment, and get an average gain/loss with the mod.