Pro Fab Boost Tube

[Ne-max]

Quick question. About to order a pro fab y bridge and 3 inch boost tube. Im doing a 475 on my lbz. Trying to figure out what tube to order. On his site is says to use the over the alternator for twins and big singles. But looking at the design it seems like over the alternater would make it tough to fit a 5 inch intake through there. Also how do you clock the alternator? I called there earlier and was talking to the wrong person. Any advice?

 

[bml2200]

I used the profab y pipe and over the alternator boost tube on my MPI 366/480 twinned LMM, I had to clock the alternator but IIRC all I had to do was split the alternator and grind a tab or two off the case to clock it.

 

[blue09dmaxx]

I have that set for sale

 

[07metallicgreen]

what do you mean clock the alternator?

 

[redws6rocket]

We had to modify the tube to make the 5" air intake work. But it all fit very nice, I have the lly bridge and s463 on my lb7

 

[Frankin_truck]

Who's s400 install are you going to use? The reason I say this is most kits come with a y bridge that is made to fit around the 5" intake

 

[redws6rocket]

Post #41 it's not on in the pic but my buddy cut it and rotated it and we ran it toward the firewall and runs parallel with the air intake. We added a 45 bend and a straight piece to make it all work!
http://www.duramaxdiesels.com/forum/showthread.php?t=50344&highlight=Van+thermostat&page=3

 

[Ne-max]

Who's s400 install are you going to use? The reason I say this is most kits come with a y bridge that is made to fit around the 5" intake

I'm building my own.

 

[Frankin_truck]

Did you ever figure anything out with the over the alternator boost tune and y bridge?

 

[clrussell]

We are using a profab Intake / boost tube and pedalstal. Got the over the alt tube. I'd say if your wanting to do a normal 5" intake to try the other style. There isn't room with this set up to go passenger side on the intake without a lot of bends.

Forgive the mess, was a picture of mock up.

That's a 45* 5-4 boot and a 4" Intake.

 

[plowboy_lbz]

That is way over the alternator. Mine almost runs the alternator.

 

[Ne-max]

Mine runs tight against alternator. But wont work unless I run to the passenger side. I do not suggest the pro fab bridge and tube for a big single like there website says.

 

[andy-stevenson]

Can anybody tell me how much room there is between the v-band flange (stock vvt) and the y-bridge?

 

[Ne-max]

That section is about the same. Would work great with a stock turbo or a 475 over stock twin kit.

 

[andy-stevenson]

Looks like what 2.5" to 3"? Hoping it works with my triple intake...

 

[Ne-max]

On the bottom its just over 3 inches.