New motor is in
Feb 17, 2013 | 01:39 PM
#21
Staging Lane
Joined: May 2012
Posts: 88
Likes: 1
From: Northern Michigan
Its more i dont get how injectors cause a 50 horse power difference. I get the general rule more air plus more fuel= more power. It looks like the truck injectors max out at 325-350. this explains the stutering at wot, but i cant see 50 horse in an injector swap. The only sensors that were not changed were the o2's. Ill keep digging!
I saw listen to these guys, they know what they are talking about. That is most likely the only thing wrong.
Feb 17, 2013 | 02:16 PM
#23
Its going to be the injectors. The more air the more fuel. The injectors can only physically pump out so much gas so what happens is your engine will keep sucking in more and more air but the gas won't be there to get you to the target air:fuel ratio. Running lean could do some damage, it does run a lot hotter.
I saw listen to these guys, they know what they are talking about. That is most likely the only thing wrong.
I saw listen to these guys, they know what they are talking about. That is most likely the only thing wrong.
Feb 17, 2013 | 02:25 PM
#25
You need to find out what your AFR was in the above dyno chart before you theorize. If you are out of fuel then you are out of fuel and need to address it before you pop it from being lean. A 228r cam in a LS1 should peak higher then 6k.
Feb 17, 2013 | 02:34 PM
#26
whats the risk of leaning out? do i need to go easy on her till i figure it out?
Ill see if i can get access to the data, but im blind right now. my gut tells me tune and fuel should get me right. Its just my first build and im over my head. I would like someone to take a look at the tune in houston if its at all possible.
Ill see if i can get access to the data, but im blind right now. my gut tells me tune and fuel should get me right. Its just my first build and im over my head. I would like someone to take a look at the tune in houston if its at all possible.
When you lean out the mixture you create excessive heat in the cylinders. This will prematurely detonate the fuel in the cylinder. This will cause knocking. This can all cause internal engine damage if its severe enough.
That is why the engine is not making quite as much power as you expect.
More fuel will help keep the cylinder cooler allowing you to run a little more timing. when running properly this will allow you to make more power.
Why do you think the Drag Racers are always tuning up there engine's between runs??? A difference in 10 Degrees in the out side temperature can slow the car down or speed the car up. By adjusting the Fuel and timing allows them to make the most power for the conditions present just before they run.
Feb 17, 2013 | 02:42 PM
#27
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Leaning out can spell disaster for your engine. Doesn't matter how built it is you can destroy the pistons.
When you lean out the mixture you create excessive heat in the cylinders. This will prematurely detonate the fuel in the cylinder. This will cause knocking. This can all cause internal engine damage if its severe enough.
That is why the engine is not making quite as much power as you expect.
More fuel will help keep the cylinder cooler allowing you to run a little more timing. when running properly this will allow you to make more power.
Why do you think the Drag Racers are always tuning up there engine's between runs??? A difference in 10 Degrees in the out side temperature can slow the car down or speed the car up. By adjusting the Fuel and timing allows them to make the most power for the conditions present just before they run.
When you lean out the mixture you create excessive heat in the cylinders. This will prematurely detonate the fuel in the cylinder. This will cause knocking. This can all cause internal engine damage if its severe enough.
That is why the engine is not making quite as much power as you expect.
More fuel will help keep the cylinder cooler allowing you to run a little more timing. when running properly this will allow you to make more power.
Why do you think the Drag Racers are always tuning up there engine's between runs??? A difference in 10 Degrees in the out side temperature can slow the car down or speed the car up. By adjusting the Fuel and timing allows them to make the most power for the conditions present just before they run.
Feb 17, 2013 | 03:45 PM
#28
Feb 17, 2013 | 03:49 PM
#29
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Many issues with leaks with that FAST intake. Yup still have the bed, all covered up for the winter. Contemplating just putting it on the truck.. Make a road trip LOL come get it.. It needs a home
Feb 17, 2013 | 03:52 PM
#30
Leaning out can spell disaster for your engine. Doesn't matter how built it is you can destroy the pistons.
When you lean out the mixture you create excessive heat in the cylinders. This will prematurely detonate the fuel in the cylinder. This will cause knocking. This can all cause internal engine damage if its severe enough.
That is why the engine is not making quite as much power as you expect.
More fuel will help keep the cylinder cooler allowing you to run a little more timing. when running properly this will allow you to make more power.
Why do you think the Drag Racers are always tuning up there engine's between runs??? A difference in 10 Degrees in the out side temperature can slow the car down or speed the car up. By adjusting the Fuel and timing allows them to make the most power for the conditions present just before they run.
When you lean out the mixture you create excessive heat in the cylinders. This will prematurely detonate the fuel in the cylinder. This will cause knocking. This can all cause internal engine damage if its severe enough.
That is why the engine is not making quite as much power as you expect.
More fuel will help keep the cylinder cooler allowing you to run a little more timing. when running properly this will allow you to make more power.
Why do you think the Drag Racers are always tuning up there engine's between runs??? A difference in 10 Degrees in the out side temperature can slow the car down or speed the car up. By adjusting the Fuel and timing allows them to make the most power for the conditions present just before they run.