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-   -   1.6 throttle body ? for MSPNP guys... (https://www.miataturbo.net/engine-performance-56/1-6-throttle-body-mspnp-guys-44843/)

FastColt 03-10-2010 09:26 PM

1.6 throttle body ? for MSPNP guys...
 
1 Attachment(s)
This only applies if you have the no AFM but i was just curious what you guys are doing with the cold start breather thing on the throttle body? Routing it back in? Blocking it? Car seems to run like shit with it wide open, but dies when i block it with me thumb. My begi pipes had a bung for it, these dont, so im wondering what option i have here? Here's a pic for reference incase im describing it wrong. Also im not running any water to my tb.

Attachment 199553

stranges12712 03-10-2010 10:22 PM

Mine is routed in. Its fine. If your cheap drill a hole, get a plastic tube piece silicone it in :P or you can weld a metel tube on and clamp it on.

curly 03-10-2010 10:47 PM

That's not cold start, that's your idle bypass line, so you can get air when the throttle is closed so your engine will idle. Your car is dying because your thumb is blocking all air to the engine. Also it's running like crap cause it's not the same temperature as what your AIT sensor is reading, as you can see from the picture.

wayne_curr 03-10-2010 10:49 PM

Real men run the IAC blocked off.

curly 03-10-2010 11:30 PM


Originally Posted by wayne_curr (Post 536320)
Real men run the IAC blocked off.

:hustler:

Nagase 03-11-2010 01:32 AM

How does one run without IAC?

Jeff_Ciesielski 03-11-2010 01:37 AM


Originally Posted by Nagase (Post 536366)
How does one run without IAC?

BISS FTMFW. It isn't that big of a deal for us up here where the weather doesn't change much. Set our idle and go pretty much :).

Nagase 03-11-2010 02:05 AM

Wait wait, what's BISS then?

FastColt 03-11-2010 06:17 AM

sweet thanks for the help!

Braineack 03-11-2010 08:30 AM

No reason the car should be running like shit with it open like that. Tune you idle settings better, adjust the bypass screw tighter.

dustinb 03-11-2010 12:31 PM

I just put a tiny K&N breather filter on mine and it runs fine.

Ben 03-11-2010 01:08 PM

I've heard reports of the valve leaking boost to atmo if left open with a filter. I can't substantiate the claim though.

Joe Perez 03-11-2010 01:10 PM

It will leak, but I can't imagine a very large volume of air getting out.

I want to know why it "seems to run like shit with it wide open." With a Megasquirt, it shouldn't care.

Jeff_Ciesielski 03-11-2010 01:10 PM

My solution:
http://lh3.ggpht.com/_tMYIeupe-9Q/S5...0/P3070016.JPG

http://lh6.ggpht.com/_tMYIeupe-9Q/S5...0/P3070006.JPG

stranges12712 03-11-2010 07:33 PM

Lol nice!


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