View Single Post
Old 07-18-2017, 01:59 AM   #680
'63GENIII
Registered User
 
'63GENIII's Avatar
 
Join Date: Sep 2008
Location: San Carlos, Ca.
Posts: 3,048
Re: 1991 V3500 Project Heavy Hauler

Ooooh. Just noticed that light bar that you snuck onto the front bumper. Hows that work? Doesn't really stand out which I like. That has got to be pretty bright.
Might have to steal that idea!

On another note, I did some towing a few weekends ago and although the truck pulled fine, it lacked the "freight train" pull that Ive become accustomed to. Im wondering if a live tune or even a tune off of some data logging might be in order.

Im not sure if some of the timing was being pulled by the ECM due to the heat (109 ambient) or the engine temp on a few of the grades which hit around 210. Just curious what your L29 runs at temp wise and if you ever notice some timing being pulled out?
__________________
Chris


'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29
'63GENIII is offline   Reply With Quote