gofastredstar Posted April 7, 2015 Report Share Posted April 7, 2015 So Im running a FIP system that has been modded at least twice by Scott87star. While it runs good, it idles low when cold. I can pull the vacuum line off the intake manifold, the idle goes right up. So thinking I can get an another air bypass valve like the one Scott used for the boost controller. Then I could wire that up to the ECU and plumb it into the manifold, to bleed air in until a set temp. Anybody run something like this? Or can Scott step in with a suggestion? Thanks, John Link to comment Share on other sites More sharing options...
scott87star Posted April 7, 2015 Report Share Posted April 7, 2015 That is a very common thing to do John, give it a shot. It will work just fine, you can tune the amount of air by the size of the fitting you stick in the solenoid. Link to comment Share on other sites More sharing options...
wrngwae Posted April 7, 2015 Report Share Posted April 7, 2015 I think i am pre wired for this too since my my last super scott upgrade.... maybe a small hydraulic make up tank filter would do nicely. Link to comment Share on other sites More sharing options...
gofastredstar Posted April 7, 2015 Author Report Share Posted April 7, 2015 Cool Scott. You have a prefered vendor for this valve? This one is working good for boost. Link to comment Share on other sites More sharing options...
gofastredstar Posted April 7, 2015 Author Report Share Posted April 7, 2015 And Scott, get one that is normally open or closed? Link to comment Share on other sites More sharing options...
JohnnyWadd Posted April 7, 2015 Report Share Posted April 7, 2015 Interesting. I wonder if my setup should go this route. I was going to look for a pulse width modulated Ford t/b and let the ms3 control idle... Link to comment Share on other sites More sharing options...
lionbull Posted April 7, 2015 Report Share Posted April 7, 2015 (edited) Interesting. I wonder if my setup should go this route. I was going to look for a pulse width modulated Ford t/b and let the ms3 control idle... That is what i did with my project.96 ford explorer 5.0 Throttle-body is what you need since it has the IAV on the Throttle-body alreadyYou will have to mount it upside down or else your hood will not close.this will put the throttle wheel on the valve cover side.You will need a bracket for the throttle cableGet a throttle wheel.My car starts up like a regular car in cold and idles down as it should.No reason why any of us should not be running an IAV at this level in the game http://i1115.photobucket.com/albums/k549/lionbull1/hood%20cant%20close%20Mustang%20TB%20upright.jpg http://i1115.photobucket.com/albums/k549/lionbull1/Mustang%20TB%20no%20IAV.jpg http://i1115.photobucket.com/albums/k549/lionbull1/Rotated%20Mustang%20TB%20no%20IAV.jpg Best Regards Edited April 7, 2015 by lionbull 1 Link to comment Share on other sites More sharing options...
scott87star Posted April 7, 2015 Report Share Posted April 7, 2015 DIYautotune has them about as cheap as anyone: http://www.diyautotune.com/catalog/ebc-electronic-boost-control-solenoid-kit-p-285.html They are a three way valve so you can plumb it either normally open or closed, whichever you prefer. Link to comment Share on other sites More sharing options...
gofastredstar Posted April 7, 2015 Author Report Share Posted April 7, 2015 Cool, thanks Scott, I will get one on order. Nice write up too Lion, but I dont want to redesign my throttle setup. I think this solution will work good enough, especially since it just a "toy" car anyway and only gets driven a few times a year. Link to comment Share on other sites More sharing options...
Turbo Cary Posted April 7, 2015 Report Share Posted April 7, 2015 Why dont people just use electronic throttle bodies now? Get a GM pedal and pedal position sensor to run the TB. Has idle control built in. Link to comment Share on other sites More sharing options...
lionbull Posted April 7, 2015 Report Share Posted April 7, 2015 Cool, thanks Scott, I will get one on order. Nice write up too Lion, but I dont want to redesign my throttle setup. I think this solution will work good enough, especially since it just a "toy" car anyway and only gets driven a few times a year. No Prob.I already figured you were not going that way so i posted in reply to what JohnnyWadd was considering to try. Link to comment Share on other sites More sharing options...
scott87star Posted April 8, 2015 Report Share Posted April 8, 2015 Why dont people just use electronic throttle bodies now? Get a GM pedal and pedal position sensor to run the TB. Has idle control built in. It's called Liability, no one without the deep pockets of an OEM is even trying to run those. The OEM stuff is already twice redundant with error trapping and still no support. Link to comment Share on other sites More sharing options...
pure_insanity Posted April 20, 2015 Report Share Posted April 20, 2015 I've been running these type valves for IAC.Problem I've found is that the valve generally takes a 1/8npt fitting. Most times this size valve has a 1/16 orifice and its not enough to allow enough air to raise the rpm by more then maybe 100-200 rpm. I found that I wanted closer to 250-300 rpm increase so I added a second valve giving the effect of having a 1/8 orifice. Sure this can be achieved by simply using a valave with a larger orifice to begin with.However this made me think about running two or three valaves and having them open until x temp then closing one valve, at a few more degrees it closes another and lowers the rpm some more.Trouble is that I haven't found a way to control multiple valves in this manor. Anyone know how to do this? Link to comment Share on other sites More sharing options...
gofastredstar Posted April 20, 2015 Author Report Share Posted April 20, 2015 Can you just drill out the orifice to a bit larger size? I wouldnt think that would have to be opened up much to get the desired rpms. Link to comment Share on other sites More sharing options...
pure_insanity Posted April 20, 2015 Report Share Posted April 20, 2015 Nope, can't drill it. When you look thru the inside you can tell its not something you need to do. Link to comment Share on other sites More sharing options...
psu_Crash Posted July 1, 2015 Report Share Posted July 1, 2015 Mustange TB with IAC built in. Control it via PWM and forget about it. Problem solved Link to comment Share on other sites More sharing options...
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