Dropped 1.4 off quarter with headers and tune!!
02-06-2016, 01:51 AM
#1
Dropped 1.4 off quarter with headers and tune!!
Hey guys just went to san antonio raceway and ran a 15.755xxx for a best that night before My headers and tune my best was 17.01!!That's a huge gain and I can't wait the flat top 5.3 but this 221,xxx mile 4.8 suprised me with great gains with these 2 mods!!Makes me want to throw a cam and stall with this motor lol just thought I'd share...live nelson tune and pacesetter long tubes
02-12-2016, 01:10 AM
#6
O sorry for the late response,it's a 99 silverado high milage 4.8 w/t edition long bed regular cab manuel locks and windows got that work truck plastic flooring.weighed in at 4024 on the scale 3.42 open diff.
02-12-2016, 01:14 AM
#7
Trending Topics
02-12-2016, 02:17 PM
#8
10 Second Club
iTrader: (18)
Wow, your truck is light, my RCSB is 400 lbs heavier. I bet you picked up close to 10 MPH of trap speed based on the ET gain. Looks like the DA was around -200'... pretty favorable weather.
I'll never run my truck with the 4.8 in it, I bet it's pretty slow if you went 17.01 with a lighter truck. I thought that it might run mid 16s by how it feels, but now I am thinking it is close to low 17s by your results. (My truck is 4600+ with me in it. Only mods are SLP CAI, ported TB, and a raggedy muffler shop cat back) The cammed LQ4/80E swap cannot happen soon enough.
I'll never run my truck with the 4.8 in it, I bet it's pretty slow if you went 17.01 with a lighter truck. I thought that it might run mid 16s by how it feels, but now I am thinking it is close to low 17s by your results. (My truck is 4600+ with me in it. Only mods are SLP CAI, ported TB, and a raggedy muffler shop cat back) The cammed LQ4/80E swap cannot happen soon enough.
Last edited by Bluecollar Hotrods; 02-12-2016 at 02:34 PM.
02-12-2016, 08:55 PM
#9
Wow, your truck is light, my RCSB is 400 lbs heavier. I bet you picked up close to 10 MPH of trap speed based on the ET gain. Looks like the DA was around -200'... pretty favorable weather.
I'll never run my truck with the 4.8 in it, I bet it's pretty slow if you went 17.01 with a lighter truck. I thought that it might run mid 16s by how it feels, but now I am thinking it is close to low 17s by your results. (My truck is 4600+ with me in it. Only mods are SLP CAI, ported TB, and a raggedy muffler shop cat back) The cammed LQ4/80E swap cannot happen soon enough.
I'll never run my truck with the 4.8 in it, I bet it's pretty slow if you went 17.01 with a lighter truck. I thought that it might run mid 16s by how it feels, but now I am thinking it is close to low 17s by your results. (My truck is 4600+ with me in it. Only mods are SLP CAI, ported TB, and a raggedy muffler shop cat back) The cammed LQ4/80E swap cannot happen soon enough.
02-12-2016, 08:57 PM
#10
Hell yea man well I'm also on 220k miles when I got the truck it was sludge city under the valve covers I've been doing all I can to get this motor healthy but I'm sure the performance took a big hit from the previous owner/company.Yea that weight is with me out of the truck lol I'm a big boy so I wanted to see the weight of the truck but add 275 for the driver plus my tools I had in the cab I also have a roll pan instead of bumper and no spare.With the long bed I knew I had to do something lol.I have a black in the machine shop right now my plans were 243 heads flat top pistons and complete new bearings and ring but it's adding up fast and just hope I don't spent all this money and I'm dissapointed with the outcome when I could of bought a lq4 with better results hmmm idk lol
On the scale out the truck