I was just looking at ways to change my setup (before its even done) on my turbo b16 crx. I was trying to figure out a way to route the pipes so i could keep my foglights and do minimal cutting to the bumper, but its not happening.

Just wondering about the efficency of back door intercoolers? Seems like the sharp 90* bend wouldn't be the best for flow efficiency. Rather than getting a new intercooler, i was lookin at those 90* couplers and cutting a hole in the front crossmember and routing the pipes back into the engine bay on both sides.

What do u guys think about this, would it be killing my power or efficency too bad or noticeably? Its on a stock b16 with a log mani and t3t04e 63 trim .63

 

I COULDNt find much info on this in the archives, so i dont think its a beat to death topic.

Anybody with useful input on doing this?

 

People have made lots of power with those backdoor intercoolers. note that they don't mount in the center of your car though... so if you're big on symmetry you might look elsewhere...

 

with the amount of pipe routing it thru the washer bottle hole vs. the abrupt 90* into the IC, i'm sure the pros/cons are negligible

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RACINTWEEK &raquo;</TD></TR><TR><TD CLASS="quote">with the amount of pipe routing it thru the washer bottle hole vs. the abrupt 90* into the IC, i'm sure the pros/cons are negligible</TD></TR></TABLE>

this is what i was figuring


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dustin &raquo;</TD></TR><TR><TD CLASS="quote">People have made lots of power with those backdoor intercoolers. note that they don't mount in the center of your car though... so if you're big on symmetry you might look elsewhere...</TD></TR></TABLE>

I dont actually wish to replace my intercooler with a back door, but to use 90* couplers coming off the endtanks to route it back into the engine bay.

 

using something like these: http://www.turbohoses.com/90%20Degree.htm

 

those are pretty much a right angle, not much curve to them.
i'd look for somethign a little more rounded


horsepowerfreaks.com has a great selection of hose couplers

 

well they have 45s as well, but i really need the right angle to try and hit the turbo. Thats why i was asking about the 90s, cause thats virtually the same as a backdoor cooler, correct?

 

you could still use a 90* bend, just use one with a little bit bigger of a radius

 

well, its hard to clamp it down in that case. My intercooler is 2 and 2.5" and some of my couplers i had a hard time getting tight enough. Not even sure if they are gonna hold. So i'd rather just get the correct size.

 

I cut a hole on the lower left side through the inner frame rail. Making sure not to cut though the double thick stuff. I then welded a 3 inch pipe in the hole. Now I route the charge pipe through that and then into a u bend back to the intercooler. I had to cut my bumper very little. More to get the intercooler not for the charge pipes. I used 2 inch in and 2 1/2 out of the intercooler. I did have to loose my washer fluid bottle. But, I've been looking around at the junkyards and I think I can make a different on work. I'll try and get some pic tommarow for you.

 

I had the inlet/outlets welded up on both sides of the intercooler and routed two new inlets on the backside of the intercooler making it a dual backdoor setup.Not that hard and it elliminated about 5 ft of piping

 

so u have a regular style interfooler? Then u cut another hole into each endtank and had ends welded on there? So u have 4 inlet/outlest and have 2 blocked off? How much did this cost you?

 

Do you know what I say about turbos and flow efficiency? Just boost .1 psi more.

 

werd.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by darkdayz &raquo;</TD></TR><TR><TD CLASS="quote">I had the inlet/outlets welded up on both sides of the intercooler and routed two new inlets on the backside of the intercooler making it a dual backdoor setup.Not that hard and it elliminated about 5 ft of piping</TD></TR></TABLE>

Yah I really like the backdoor setup of my Revhard kit. The compressor on the turbo goes towards the drivers side. RH welded an elbow to the compressor outlet, and the IC has the inlet and outlet coming out the back. So from turbo to IC inlet I just have a 90 degree elbow and the charge piping. I thought that I was missing some piping when I opened up my kit, but then I saw how they set it up.

 

cheddar

Taken from the traction bar thread, of somebody who made their own... Except it looks like he cut out the whole front piece or his intercooler is short enough that he is going through the radiator hole with no modification.