Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

Hey guys

Im kind of stumped on how I should go about doing this setup.

First off the car is an 88 Crx Si with a D16 motor

Im stumped on how I should run this setup, I dont know where to put everything in what order and what the laws of rules of making the best power are.

Check out this pic first

http://www.imagestation.com/picture/...1/f00b4f40.jpg

Its small but you get the idea, now heres my questions.

Im going to run a 3" downpipe into a mechanically operated 3" exhaust cutout. you can see in the pic how it is curved, i want 1 90 bend and then almost straight down about 10" into the cutout

Now as you can see my wastegate comes out just above the downpipe but it about 3.5" BEHIND it

I need to know where to make the wastegate dump enter the downpipe and if I am allowed to make it enter 2-3" above the cutout or if it has to enter BEFORE the 2 02 bungs

Someone please clarify that for me

Im just lost really on the fact if I can make the wastegate dump enter AFTER the 2 02 bungs or if one has to be ahead or if there any rules like that?

If it matters its OBD0, I should maybe also mention that Im going to have a full 2" exhaust being routed back from the downpipe

Let me know if you guys need anything else or pics or whatever

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

Nice pic.

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

If I was you, I wouldn’t even bother with that. just let the WG be by it self, let it blow off underneath your car or something, unless your worried about emissions and stuff.

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

Yes I have e-testing

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

I have mine rerouted to the exhaust like your picture.

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

And then the 2 02 bungs just below where it enters the exhaust?

What is that like for power?

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

Its fine.

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

Even if your looking for 15-18psi and 300whp? or would it be more benefical to run it down at the bottom of the e-cut and the 02 bungs be at the top of the downpipe

Does it matter when the 02 bung and wastegat goes?

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

In theory it matters quite a bit. On my own car that is a stock A6 running 10 psi, it doesnt. Check out Jeff's post on his new DP. His is done right.

Re: Downpipe/Dump, 02/Wideband Bungs, 3" Exhaust Cutout *Need FAB Placement HELP*
 

------ e-test and me being scared of cops checking