D_Yurik

so you can buy athrottle body spacer through ebay for $60 shipped to your door. Is it worth the money? some people say it make a loud whistle noise on the gm trucks, is this true? am i really going to see the "4" mpg gain? just wondering. i get about 10 - 12 mpg with my 6L, but just got new tires today wanna see if that may help. Thanks

sickREDsierra

iTrader: (17)

i saw a 13 rwhp increase and 3 mpg better on the highway from my spacer.

it was better than the tornado, i only got 10 hp from that.

tarinitup

iTrader: (11)

Get a nitrous plate and cap off the fittings. It will act as a spacer and give you room for future power.

sickREDsierra

iTrader: (17)

but does it whistle like a REAL spacer? thats the real question here buddy.

S/C Z71

Spacers are useless on vortec trucks. Unless you're after the whistle.

sickREDsierra

iTrader: (17)

chooo choooo


stop that!

D_Yurik

The whistle isnt what im after, its the milage thing, i cant believe gm would put an engine that gets such crappy milage.

sickREDsierra

iTrader: (17)

you are already dyno tuned?

if so, i dont think anything else is going to help much... unless you go leaner at cruise. should be about 14.7 AF/R at cruise (stoich) but you can get away with a little leaner

trever1t

iTrader: (14)

http://www.youtube.com/watch?v=Nnzw_i4YmKk
lol, oldy but goody.



D_Yurik you are new but really that could've been answered by a simple search.

D_Yurik

yes speed inc. dyno tuned, im running between 12 and 14 on af/r