vortec max only guys
Mar 25, 2012 | 12:33 AM
#21
Mines pretty stock, magna muffler, intake...but, I have the AFM delete kit in the garage and a Trucker cam in the moving boxes somewhere. And my ls3 intake is on the way from Oregon this week, along with a Nelson tune...that's it for the summer, then she goes back in storage for winter in the AK. Next summer, my tranny and Trick Turbo.
Dec 23, 2014 | 06:07 AM
#23
On The Tree
Joined: Apr 2014
Posts: 180
Likes: 0
Found this thread while searching for info on x pipes lol
I have a 06 Vmax CC 4wd..best pass so far was a 14.99..i traction issues and was running 33x12.50x17 mud grips..i have now installed 1&3/4" catless longtubes, BB 91+ tune and a corvette servo..when the track opens back up i wanna go run again except in 4wd this time..hoping for low 14s
I have a 06 Vmax CC 4wd..best pass so far was a 14.99..i traction issues and was running 33x12.50x17 mud grips..i have now installed 1&3/4" catless longtubes, BB 91+ tune and a corvette servo..when the track opens back up i wanna go run again except in 4wd this time..hoping for low 14s
Apr 28, 2015 | 10:26 AM
#24
Registered User
Joined: Apr 2015
Posts: 2
Likes: 0
From: Batesville, MS
What ignition timing are you guys running on 91+ octane tune
I have tuned 4 vehicles so far and can get in the ballpark with WOT timing, but I can't find a lot of info on the L75 VMax. I tune fueling with wideband and have most of the other bases covered, but what kind of timing curve are you guys with the VMax running with 91+ octane fuel?
I have heard that they don't make any more power over 24* due to efficiency of the L92 cylinder head. I have heard things like you loose torque under 3600 anything over 24*. With 93 octane I can use my older LS timing curves of 26-28* and even go as high as 30* without any detonation, but I'm looking for max torque timing down low and max hp timing up top. My current curve pulls about 18* of idle and climbs to 24* about 3600rpm then drops to 21* at peak torque and climbs to 25* from 5000rmp to redline 6000rpm.
Am I in the ballpark for best power on lightly modified stock? I have stock exhaust, Airaid MIT with AEM dryflow air filter and hptuners modified tune. I can pull a 6.8sec 0-60mph on a good day but 9/10 7.0 flat in my 2007 VMax Z71 CrewCab with 3.73. According to hptuners log, I get to 91-93mph in about 13 sec, but that's when 2nd gear runs out of breath and I hit 3rd and it creeps after that.
I have heard that they don't make any more power over 24* due to efficiency of the L92 cylinder head. I have heard things like you loose torque under 3600 anything over 24*. With 93 octane I can use my older LS timing curves of 26-28* and even go as high as 30* without any detonation, but I'm looking for max torque timing down low and max hp timing up top. My current curve pulls about 18* of idle and climbs to 24* about 3600rpm then drops to 21* at peak torque and climbs to 25* from 5000rmp to redline 6000rpm.
Am I in the ballpark for best power on lightly modified stock? I have stock exhaust, Airaid MIT with AEM dryflow air filter and hptuners modified tune. I can pull a 6.8sec 0-60mph on a good day but 9/10 7.0 flat in my 2007 VMax Z71 CrewCab with 3.73. According to hptuners log, I get to 91-93mph in about 13 sec, but that's when 2nd gear runs out of breath and I hit 3rd and it creeps after that.
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