please help..
Thread Starter
Launching!
Joined: Sep 2008
Posts: 273
Likes: 0
please help.. i just installed a HSW single nozzle wet kit on my LQ4 in my 99 sonoma.
i also JUST started messing around with HP tiners on the truck, first of all the motor has stock injectors, and HP Tuners tells me theyre running at 96% duty cycle... is this going to be a problem for spraying it? i would assume since its got a seperate fuel line/selenoid its should supplent the extra fuel that way.....?
also i have gotten to the timing tables etc, but i am a little confused as to where my timing needs to be or what the table should look like..
ive read pulling out 6-7* is okay, but i assume thats from stock... and my truck had a "tune" done to it when i first did the swap and i have no idea how aggressive it is....
id like to spray a 150 shot this coming saturday...
p.s. i bought some ngk tr7's for it. and i have a 255lph fuel pump in tank...
i also JUST started messing around with HP tiners on the truck, first of all the motor has stock injectors, and HP Tuners tells me theyre running at 96% duty cycle... is this going to be a problem for spraying it? i would assume since its got a seperate fuel line/selenoid its should supplent the extra fuel that way.....?
also i have gotten to the timing tables etc, but i am a little confused as to where my timing needs to be or what the table should look like..
ive read pulling out 6-7* is okay, but i assume thats from stock... and my truck had a "tune" done to it when i first did the swap and i have no idea how aggressive it is....
id like to spray a 150 shot this coming saturday...
p.s. i bought some ngk tr7's for it. and i have a 255lph fuel pump in tank...
Teching In
Joined: Apr 2010
Posts: 30
Likes: 0
From: Ortonville, Michigan
Thread Starter
Launching!
Joined: Sep 2008
Posts: 273
Likes: 0
it is mostly stock, has 1 5/8" shorty headers, "off road" 2 1/2" y pipe, into 3 1/2" single exhaust with straight thru magnaflow, "cold air intake" and the tune which im beginning to think is a little more agressive than i thought. it was done at current performance wiring...
the truck weighs 3700 with me in it, and it trapped 105.86 mph with stock torque converter and stock 3.42's, this was crossing the line at something like 4800rpms... the performance calculator i used said its making 343 rwhp... which i would assume thru a 4L80E is 400-410hp at the crank...
the truck weighs 3700 with me in it, and it trapped 105.86 mph with stock torque converter and stock 3.42's, this was crossing the line at something like 4800rpms... the performance calculator i used said its making 343 rwhp... which i would assume thru a 4L80E is 400-410hp at the crank...
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Verdad Gallardo The only way I know is to use the software to check it. Every generation of LS motor has a different injector flow rate and fuel psi. Your current power level may be all yours support. Just get some bigger injectors and adjust your tune. Your gonna want more injector to spray anyway.
Thread Starter
Launching!
Joined: Sep 2008
Posts: 273
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i dont have my LM-1 wideband on it yet, i planned on using it once i sprayed it...
the motor is a 2004, stock injectors. (LQ4)
looks like nitrous is outta the question for now, i was only gonna spray it a few times before the end of the year, as over the winter i plan on doing my mid/rear mount TC-78 turbo build, and will be using 80lb/hr injectors...
the motor is a 2004, stock injectors. (LQ4)
looks like nitrous is outta the question for now, i was only gonna spray it a few times before the end of the year, as over the winter i plan on doing my mid/rear mount TC-78 turbo build, and will be using 80lb/hr injectors...
Teching In
Joined: Apr 2010
Posts: 30
Likes: 0
From: Ortonville, Michigan
The only things I can think to get you to the track would be to find some good used higher flowing stock injectors. The other thing would be to go back to a stock tune pull 6 degrees and watch the injector duty and KR.
Or maybe a combination of both?
Or maybe a combination of both?
if you are spraying a wet kit, this will not effect your injector duty so you will be fine there, but it will require your fuel pump to produce more fuel so you may need to address that and make sure it is up to the challenge.
Thread Starter
Launching!
Joined: Sep 2008
Posts: 273
Likes: 0
the truck has a 255lph pump in it so should i go for it? this is the last time ill be able to race it this year...
also the last before i turbo it...
(what the hell its just a set of new pistons if it doesnt work out....
)
also the last before i turbo it...
(what the hell its just a set of new pistons if it doesnt work out....
) Thread Starter
Launching!
Joined: Sep 2008
Posts: 273
Likes: 0
took 6 degrees out of the current tune, put the ngk tr7s in it, and wired in my innovate lm1 wideband, pulls quite strong for a 75 shot. will be spraying 100 and 150 tomorrow. will post results.
p.s. afr is 14.4ish cruising light throttle and 12.5:1 wide open...
p.s. afr is 14.4ish cruising light throttle and 12.5:1 wide open...
