Grease Monkey Garage

[redline4]

I know you have already been over it 1000 times and probably know more than any of us providing ideas but. Fuel pressure could still be a thing worth rechecking one more time? Was that motor originally flex fuel? I think they like 48psi fuel pressure instead of 58

The part number injectors I have are rated at 60psi

 

[silveradol9h]

Zero use pulling that. I would'nt even think of pulling mine with the new 6.6 gas and those have a much broader torque curve. That's definite diesel territory. I was happy with mine (2013) going over the Bighorn Mountains on our recent Wyoming trip.
A friend of mine has a 6.2 that I put a cam in for him. Brian Tooley racing "Truck Norris" cam. It sounds really good but the tuning isnt quite right and he's not happy with the guy who did that.

Well I traded the half ton for an HD 6.0 gas for the last 5 years. Wasn't winning any drag races but got the job done. Just traded that one a couple months ago for the 6.6 gas and had the maiden voyage with the camper to the Black Hills last week. I guess the bar was set pretty low by the 6.0 but I was real happy with how the 6.6 did there and back. Of course it's only rolling hills between here and there but we spent most of our time above the speed limit, except maybe a couple mile stretch coming up out af the badlands. I know it will be a different story if I ever get to take it over some real mountains but just couldn't justify the diesel at this time considering how often I'm pulling that kind of weight.

 

[Shane¹]

The part number injectors I have are rated at 60psi

I think I have some good injectors if you end up needing just one or two

 

[redline4]

Well...
Ain't that a mōthĕrfųckĕr...


I'm just going to order 8 new injectors for an 07 Tahoe that the engine came from tomorrow.

I was under the impression that if the connectors were the same the injectors were cross compatable if used as a set.
Guess I was wrong.

 

[stihl livin]

Well...
Ain't that a mōthĕrfųckĕr...
View attachment 466852View attachment 466853View attachment 466854

I'm just going to order 8 new injectors for an 07 Tahoe that the engine came from tomorrow.

I was under the impression that if the connectors were the same the injectors were cross compatable if used as a set.
Guess I was wrong.

Some mechanic you are slacker.

 

[Shane¹]

Well...
Ain't that a mōthĕrfųckĕr...
View attachment 466852View attachment 466853View attachment 466854

I'm just going to order 8 new injectors for an 07 Tahoe that the engine came from tomorrow.

I was under the impression that if the connectors were the same the injectors were cross compatable if used as a set.
Guess I was wrong.

One might be a flex fuel injector? And maybe the flow rate is different. The lt1 swap guy has quite a bit of info on injectors and psi and flow rate.

 

[redneckhillbilly]

fuuuuuuuuuuuck

 

[davidwyby]

 

[Yukon Stihl]

View attachment 467085

All my vehicles are Rescued

 

[redline4]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

 

[Woodslasher]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

Freakin' awesome! That car sounds badass!

 

[jacob j.]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

Freakin' awesome! That car sounds badass!

Time to break out the Pabst and the Quiet Riot CDs...

 

[Shane¹]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

Heck yeah that's awesome

 

[Mastermind]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

We used to heat the bottom coil with a torch to drop it. Worked pretty well.

 

[redline4]

We used to heat the bottom coil with a torch to drop it. Worked pretty well.

Yup, that works too.

 

[Hinerman]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

Congratulations!!! If you change your mind about the burnouts, video please, lol

 

[stretch5881]

Awesome! Much closer to giving your Dad a ride.

 

[redline4]

Congratulations!!! If you change your mind about the burnouts, video please, lol

It's still going to be a while. I have to tear the front back apart to get my ride height where I want it, then get my pinion angle set, then the front suspension set up. Then tuning. It moves under it's own power, but I can definitely tell it's not making the power it should be on my base setup.
I may also be pulling the center section for a gear swap..It's been so long I no longer remember what gears are in it, I am going to check that today. I had originally envisioned a 6 speed auto and those have different ratios than the 4L60, so I might need to change.

 

[They call me Mr. Kibbs]

Injectors did the thing. Runs like a different engine. AFR is now where it should be and I can begin actually tuning it.

Front end is still way too low.
Plus the spring rate on these UMI springs is in the "rides like a 1 ton" range.
I think I'm going to get factory replacement springs and just cut coils until I get the height I want. Total pain but I think it's the only way to achieve what I'm after.

Hell yeah! Sounds great, and glad you stuck with it. Sort of sux all the *s-word you went through to get to this point but gotta feel good to roll down the road. Suspension issues shouldn't (I hope) be as much of an issue to swap out or adjust. Congrats!

 

[davidwyby]

@redline4 congrats!!

I’m stoked for you, stuff is so frustrating. Every time I hook a trailer to my 11 Cummins and hit the mountains, it loses power, we haven’t been able to figure out why. Too much confuser. Half a mind to 12 valve it