Welcome to the SR20 Community Forum - The Dash.
Register
SR20 forum logo

Thread: does this look good for blowthrough?

+ Reply To Thread
Posts: 1-10 of 19
2009-04-05 23:08:55
#1
does this look good for blowthrough?
I am new to the turbo game and I am working on fitting my IC piping together. I just wanted to check and see if my placement of the MAF and BOV is acceptable to run a blow through setup.
2009-04-05 23:12:00
#2
Placement is correct, but I don't know about distance... Shouldn't you have 8" from the TB to the MAF, with minimal bends?
2009-04-05 23:17:03
#3
that pipe is probably about that long distance wise, POV just makes it look short. As for the no bends bit, I am not too sure about that. I have to read up a little bit on running blowthrough. I figure that since I want 18psi daily driven and VTA bov I should run blow through.
2009-04-05 23:19:13
#4
Originally Posted by Robchaos
that pipe is probably about that long distance wise, POV just makes it look short. As for the no bends bit, I am not too sure about that. I have to read up a little bit on running blowthrough. I figure that since I want 18psi daily driven and VTA bov I should run blow through.


Should be okay, then. Other than the nipples on the piping that should be capped, you should be good
2009-04-05 23:21:54
#5
suppose to be 12" away from the TB. Doens't matter where the BOV is, mines closer to the MAF. fix that piping though lol that looks like hell :/
2009-04-05 23:27:02
#6
lol the piping is just a rough mock up right now to see if I have enough. hmmm I might have to rethink my piping situation if it needs to be 12". I measure using the string method and it comes up about 8-9" of travel from the MAF to the TB. Here is a pick with the MAF off the car.
[img][IMG]http://i26.photobucket.com/albums/c126/robboser/img1238973819381.jpg[/img][/IMG]
Also haven't people used vacuum ports in that position to aide the breather system? I was thinking of doing that if it would work, but if not capping it is not hard.
2009-04-05 23:31:41
#7
Don't want the nipples on the breather system if blow thru. You'll put positive pressure in the crankcase.

You can use that nipple to go to the IACV though.
2009-04-05 23:34:06
#8
good point. Wasn't even thinking of that. So I will be capping off the large and small ports on the one pipe, capping off the other end of the t for the valve cover breather, and using the large port on the other pipe for the Large diameter hose that goes to under the IM, correct?
2009-04-05 23:38:19
#9
I just checked, I do have one pipe that is a little longer and the same bend as that first pipe to the TB, and it doesn't have the port on it, so I could use that and then the second pipe with the 2 ports I could use one for the BOV, and one for the IACV, right?
2009-04-05 23:39:17
#10
Originally Posted by Robchaos
good point. Wasn't even thinking of that. So I will be capping off the large and small ports on the one pipe, capping off the other end of the t for the valve cover breather, and using the large port on the other pipe for the Large diameter hose that goes to under the IM, correct?


There are a few routing diagrams around here, but they can differ quite a bit.

Basically, one small nipple can be used for the wastegate (not a bad idea, wastegate should see boost only). One large nipple for the IACV (needs to be between MAF and TB). All others can be capped off.

For valvecover: One of the ports from the T can be capped off, or you can run it to the PRE-TURBO intake pipe, to assist in removing blowby stuff from the crankcase. Run the other port like usual thru the catchcan down to the crankcase. PCV can stay or go, up to you. (I'm keeping it and just have a large vacuum line to it from my o2 induction manifold to assist with pulling blowby out of the crankcase.)
+ Reply To Thread
  • [Type to search users.]
  • Quick Reply
    Thread Information
    There are currently ? users browsing this thread. (? members & ? guests)
    StubUserName

    Back to top