LB7: new guy want power(no money)

[Durascrap02]

ok cool thanks im gonna check it out i think its still stock then coming off the turbo anyways but after it makes the bend and straightens out its a pipe slipped over the stock 1 and goes all the way back with some shotty welding on the hanger. you think i will need to put some 4" on with an intake and boost valve and my 90 hp programmer?

 

[Durascrap02]

all the talk about egts kinda scares me im not sure if i should worry about this or not thats why i was wondering if i should get some bigger exhaust, sorry for all the questions im just new and want to learn about all this stuff.

 

[Durascrap02]

really no 1!

 

[sparepartsracing]

4" exhaust get rid of the cat if you have one and screw the muffler....get some guages to monitor the egts

 

[Durascrap02]

no cat or muffler on it havent measured it yet i will 2morow, when you say 4 does that start at that clamp just down from the turbo or do i have to go bigger right off the turbo 2?

 

[Durascrap02]

yep its still stock from the turbo back about 2 feet so im gonna look into gettin some exhaust, i ordered an afe stage 2 intake and ppe valve the other day, so any thought on some practical gauges?

 

[GeneralTJI]

Replacing the actual downpipe coming off the turbo does help! lowers egts and should allow for a little more power (when pushing the turbo hard) You don't have to have this with the mods your at currently.

Boost and EGT gauges are the most common (most needed) You can take it further, I personbally like lots of gauges :thumb: But those are where you want to start....

 

[Durascrap02]

sweet thanks. is that what they mean when they say turbo back, that they put a bigger dp on and exhaust.

 

[Noreaster]

Alot of companies will say turbo back but its really from downpipe back. If you don't have a cat on the front pipe I would just get a cat back saves you a $100.
too bad you ordered the intake, stock one would have been fine for you & could have used the $$ for an airhorn.

A good thread to read-basic performance upgrades for a LB7 http://www.duramaxdiesels.com/forum/showthread.php?t=9733

 

[Durascrap02]

dam there is no cat or muffler on it and the pipe on back is 4" should i leave it u think will that be fine, cuz its stock back a little ways and then bam 4 inch all the way back. whats that air horn deal. thanks for the info!

 

[Noreaster]

The stock muffler is the biggest restriction, if thats MIA & its 4" down there Id leave it.
You can either mod the stock airhorn or buy a 3.5" Profab http://www.duramaxdiesels.com/forum/showthread.php?t=23741

 

[Durascrap02]

that looks like it would help out huge with flow, what can u do to the stock 1 port it out or what?

 

[Noreaster]

plenty of reading http://www.duramaxdiesels.com/forum/showthread.php?t=10248&page=6&highlight=air+horn

 

[Durascrap02]

lots of good info thanks. has anyone done the y bridge mod yet or no anything about it? i'd like to do that and that fprv shim deal, and what is the suction pump and regulator mod? any1 no about these?

 

[Noreaster]

You don't need any of that stuff

 

[Durascrap02]

im kinda curious why u say that? if i would get the airhorn and get a little better flow why wouldnt i want to increase the flow of the y bridge too? and im not sure what the fuel suction deal does? i was just reading it where i seen the airhorn stuff that you showed me.

 

[Noreaster]

There good supporting mods but not really worth the time & money unless you have a built motor.

 

[Durascrap02]

oh i c dam that kinda sucks cuz thats a lot of cake to build 1 of these motors

 

[Durascrap02]

got my intake yesterday put it in last night i like it. spools faster and has a cool whistle now!