LB7: BPU's for the LB7

[SmokeShow]

...
Maybe need to start another thread to brainstorm about this.

Thanks Tom,

Bill.

please do. I'm interested to know also.

 

[Mike_S]

A few people have dynod 590 on fuel only with a stock turbo. With manifolds or headers and up-pipes as well as a downpipe they would likely have been over 600.:thumb:

On an LB7?

 

[KEVINL]

Yep Thebac hit 590 on fuel with the IHI on a LB7

 

[TheBac]

578, fuel only. stock turbo/pipes. But then the rods got tweaked...

 

[Darin13]

ok stupid question how do i know rail pressure on my lb7

 

[Noreaster]

I don't know if it was previously mentioned or not, the cummins oil drain plug part# from Napa is 704-1378

 

[Noreaster]

Could also use an AIH delete from CFM for a 7.3 powerstroke it has 1/8" NPT port to plumb a boost gauge http://www.shopatron.com/products/p.../part_number=23-002-000/1527.0.1.1.0.0.0.0.0?

 

[nmband13]

Could also use an AIH delete from CFM for a 7.3 powerstroke it has 1/8" NPT port to plumb a boost gauge http://www.shopatron.com/products/p.../part_number=23-002-000/1527.0.1.1.0.0.0.0.0?

Thats a good mod, less air restriction and no taping into stock tubes for a boost gauge

 

[othrgrl]

Thats a good mod, less air restriction and no taping into stock tubes for a boost gauge

For free you can take the stock IAH and cut the coil off the bottom, punch out the center and drill and tap it for boost.

 

[Erniet67]

fixed your spelling-gauges & recommend
modded regulator
A few other things that might not add any power but frees up restrictions-intake heater removal,drivers side manifold & fuel pickup
On #6 is that 32psi pre or post intercooler?

What is the fuel pickup on #6 is that a mod or did I read it wrong

 

[cntry125]

I think he meant post # 6

 

[714banshee380]

360 rwhp trans starts to hate you? say you have a efi live max tune for stock trans say a 90 HP will that put you at about 360 give or take a stock lb7 has about 260 to the wheels?

 

[DirtyMax32]

fixed your spelling-gauges & recommend
modded regulator
A few other things that might not add any power but frees up restrictions-intake heater removal,drivers side manifold & fuel pickup
On #6 is that 32psi pre or post intercooler?

How do you remove the intake heater on an LB7

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[Noreaster]

How do you remove the intake heater on an LB7

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disconnect the wire, tape it up, remove the heater out of the Y-bridge
use a intake heater delete or a 24valve cummins oil drain plug
it will throw a code when its below 50*, shut it off with efilive

 

[DirtyMax32]

disconnect the wire, tape it up, remove the heater out of the Y-bridge
use a intake heater delete or a 24valve cummins oil drain plug
it will throw a code when its below 50*, shut it off with efilive

Alright thanks. I'm going to order my delete today.

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[othrgrl]

How do you remove the intake heater on an LB7

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Repeat:

For free you can take the stock IAH and cut the coil off the bottom, punch out the center and drill and tap it for boost.

 

[Rico]

Sorry, but what is the benefit of pullin the IAH? Does it restrict air intake flow or just disrupt it enough to remove? Will it effect cold weather starting?

 

[Noreaster]

Sorry, but what is the benefit of pullin the IAH? Does it restrict air intake flow or just disrupt it enough to remove? Will it effect cold weather starting?

frees up the intake, 2.5" tube with a 1" coil sitting in the middle
it was for emissions & makes no difference for starting

 

[othrgrl]

frees up the intake, 2.5" tube with a 1" coil sitting in the middle
it was for emissions & makes no difference for starting

X2

 

[bonomax]

frees up the intake, 2.5" tube with a 1" coil sitting in the middle
it was for emissions & makes no difference for starting

exactly correct. its pretty restrictive and frees up flow. also it makes no differance in start up in cold weather and that was made for emission to burn fuel more completely in cold weather.

only downside ive seen of not running one is in cold weather. lets say like 30 degrees F and below it takes longer to for truck to get up to operating temperature. which makes the truck use more fuel and hurts performance until its up to operating temperature. so when it starts to get cold out like now, i take out the plug and swap AIH back in.