6.0l Build questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

softballnrd27 · 03-05-2011, 05:40 AM

85 SWB w/6.0l and th350 ford 9" w/3.89 gears and a detroit locker. Built for street and strip.
Here is what I am building:
LQ4 or 9
Edelbrock Victor Jr w/elbow
1 7/8" primary headers
Texas Speed Cam package cam info:232/234 .595/.598 112 Lobe Seperation. 1800-6400 RPM Power Band
100-150 shot of NOS

Here are my questions:
What throttle body(brand and size) should I go with and what size fuel injectors?
What stall?
What did you do for O2 sensors? Is it better to go with wideband?

BR3W CITY · 03-05-2011, 07:30 PM

not sure what to say on TB, but if you run DBW i think you are way more limited on options.

Without the nitrous, you are probably still within capability of the stock injectors. If you go with a wet system you can just upgrade the pump and allow the nitrous system to handle the fuel enrichment. If you go dry and want the computer to handle it, or just want to upgrade since you may outpace those injectors in the future.
I went with Ford Cobra injectors which run round 39lbs at stock fuel pressure (i think they run a bit higher on our cars since the lsx uses a higher psi than the stock ford system).They use the EV6 connectors, as do many upgrade injectors so check what style is on your harness. If you have the delphi connector, your only real options are custom inj or the 8.1 marine injectors for an upgrade.

Stock 02 are fine to have it run, adding a wideband is nice for diy tuning and monitoring afr. Probably not 100% needed if your tuner has a tailpipe wideband they can use to tune.

softballnrd27 · 03-05-2011, 07:34 PM

Definitly going with DBC. The elbow has a 90mm opening so should I just get a nice 90mm TB?

swb85 · 03-06-2011, 05:50 PM

If you are gonna run a carb style intake, run a 4150 throttle body and ditch the elbow. Those elbows are more suited for forced induction, there's lots of dyno proof showing them robbing significant power from n/a setups versus a 4150 tb. If you don't want a 4150 then you're better off with a factory style front feeder intake/tb.

For injectors, you'll be borderline with the stockers but they'll work. I really like the 42lb ford svo injectors for an inexpensive upgrade that are easy to tune and will feed plenty of power.
Posted via Mobile Device

softballnrd27 · 03-07-2011, 12:45 AM

With the 4150 style throttle body, would I still use the injectors and fuel rails for fuel and the tb would just be for the air? I like this idea bc it gives me the semi "old school" look but still "new school" tech and fuel mileage. School me please.

swb85 · 03-07-2011, 09:22 AM

Yep, a 4150 style throttle body will just sit right on the intake like a carb would, but all of your fueling is through the injectors/rails. Something like this:

softballnrd27 · 03-08-2011, 12:02 PM

Ok, I think I have most of it down but what about the tune? would I have to go to a speed density tune? What is required for a speed density tune? If not where would the MAF go? Almost not stupid with this fuel injection thing.

swb85 · 03-08-2011, 12:27 PM

It would be easiest to run a speed density tune. Just the factory MAP sensor in the intake, IAT , TPS and ECT sensors are the only things required to run SD. The rest is done in the tuning.

softballnrd27 · 03-09-2011, 12:15 AM

Ok thanks again man!! I am torn between this and the Pro-Flo XT set-up.

softballnrd27 · 03-09-2011, 08:41 AM

So I would have to still run an air intake (tube) style filter? Like what is run on the newer trucks? Or can I run and old school style air cleaner set-up.

swb85 · 03-09-2011, 10:00 AM

You can run an old style filter setup, just have to make provisions for the IAT sensor somewhere in it.

softballnrd27 · 03-09-2011, 10:56 AM

Trying to map this out with my minds eye:
MAP=Manifold Absolute Pressure- has a boss in the intake
IAT=Intake Air Tempature- goes somewhere before the throttle body?
TPS= Throttle Position Snesor- on the throttle arm linkage whatever you want to call it
ETC=????- Goes where? What's it's use?

I have books on the way dealing with LS motors so I will be able to read more on all this and hopefully stop bugging ya'll with so many questions. This FI crap is blowing my mind!!!! Hopefully once I can get my hands dirty I will understand it more betterer.

softballnrd27 · 03-09-2011, 11:00 AM

By the way that Wilson TB you posted is beautiful and has a nice little price tag with it to.

swb85 · 03-09-2011, 12:18 PM

ECT = Engine Coolant Temperature

Wilson is very proud of everything they make......I have one of their $1k plastic intakes on my LS motor.

softballnrd27 · 03-10-2011, 01:03 AM

Thanks!! I couldn't for the life of me put that one together!!

03-05-2011, 05:40 AM	#1
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	6.0l Build questions 85 SWB w/6.0l and th350 ford 9" w/3.89 gears and a detroit locker. Built for street and strip. Here is what I am building: LQ4 or 9 Edelbrock Victor Jr w/elbow 1 7/8" primary headers Texas Speed Cam package cam info:232/234 .595/.598 112 Lobe Seperation. 1800-6400 RPM Power Band 100-150 shot of NOS Here are my questions: What throttle body(brand and size) should I go with and what size fuel injectors? What stall? What did you do for O2 sensors? Is it better to go with wideband? __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 Last edited by softballnrd27; 03-05-2011 at 05:50 AM.

03-05-2011, 07:30 PM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 6.0l Build questions not sure what to say on TB, but if you run DBW i think you are way more limited on options. Without the nitrous, you are probably still within capability of the stock injectors. If you go with a wet system you can just upgrade the pump and allow the nitrous system to handle the fuel enrichment. If you go dry and want the computer to handle it, or just want to upgrade since you may outpace those injectors in the future. I went with Ford Cobra injectors which run round 39lbs at stock fuel pressure (i think they run a bit higher on our cars since the lsx uses a higher psi than the stock ford system).They use the EV6 connectors, as do many upgrade injectors so check what style is on your harness. If you have the delphi connector, your only real options are custom inj or the 8.1 marine injectors for an upgrade. Stock 02 are fine to have it run, adding a wideband is nice for diy tuning and monitoring afr. Probably not 100% needed if your tuner has a tailpipe wideband they can use to tune. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-05-2011, 07:34 PM	#3
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions Definitly going with DBC. The elbow has a 90mm opening so should I just get a nice 90mm TB? __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-06-2011, 05:50 PM	#4
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: 6.0l Build questions If you are gonna run a carb style intake, run a 4150 throttle body and ditch the elbow. Those elbows are more suited for forced induction, there's lots of dyno proof showing them robbing significant power from n/a setups versus a 4150 tb. If you don't want a 4150 then you're better off with a factory style front feeder intake/tb. For injectors, you'll be borderline with the stockers but they'll work. I really like the 42lb ford svo injectors for an inexpensive upgrade that are easy to tune and will feed plenty of power. Posted via Mobile Device __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

03-07-2011, 12:45 AM	#5
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions With the 4150 style throttle body, would I still use the injectors and fuel rails for fuel and the tb would just be for the air? I like this idea bc it gives me the semi "old school" look but still "new school" tech and fuel mileage. School me please. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-07-2011, 09:22 AM	#6
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: 6.0l Build questions Yep, a 4150 style throttle body will just sit right on the intake like a carb would, but all of your fueling is through the injectors/rails. Something like this: __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

03-08-2011, 12:02 PM	#7
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions Ok, I think I have most of it down but what about the tune? would I have to go to a speed density tune? What is required for a speed density tune? If not where would the MAF go? Almost not stupid with this fuel injection thing. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 Last edited by softballnrd27; 03-08-2011 at 12:04 PM.

03-08-2011, 12:27 PM	#8
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: 6.0l Build questions It would be easiest to run a speed density tune. Just the factory MAP sensor in the intake, IAT , TPS and ECT sensors are the only things required to run SD. The rest is done in the tuning. __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD Last edited by swb85; 03-08-2011 at 12:28 PM.

03-09-2011, 12:15 AM	#9
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions Ok thanks again man!! I am torn between this and the Pro-Flo XT set-up. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-09-2011, 08:41 AM	#10
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions So I would have to still run an air intake (tube) style filter? Like what is run on the newer trucks? Or can I run and old school style air cleaner set-up. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 Last edited by softballnrd27; 03-09-2011 at 09:00 AM.

03-09-2011, 10:00 AM	#11
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: 6.0l Build questions You can run an old style filter setup, just have to make provisions for the IAT sensor somewhere in it. __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

03-09-2011, 10:56 AM	#12
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions Trying to map this out with my minds eye: MAP=Manifold Absolute Pressure- has a boss in the intake IAT=Intake Air Tempature- goes somewhere before the throttle body? TPS= Throttle Position Snesor- on the throttle arm linkage whatever you want to call it ETC=????- Goes where? What's it's use? I have books on the way dealing with LS motors so I will be able to read more on all this and hopefully stop bugging ya'll with so many questions. This FI crap is blowing my mind!!!! Hopefully once I can get my hands dirty I will understand it more betterer. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-09-2011, 11:00 AM	#13
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions By the way that Wilson TB you posted is beautiful and has a nice little price tag with it to. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-09-2011, 12:18 PM	#14
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: 6.0l Build questions ECT = Engine Coolant Temperature Wilson is very proud of everything they make......I have one of their $1k plastic intakes on my LS motor. __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD Last edited by swb85; 03-09-2011 at 12:22 PM.

03-10-2011, 01:03 AM	#15
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: 6.0l Build questions Thanks!! I couldn't for the life of me put that one together!! __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168



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