93' Miata stolen and flipped build thread - Page 200 - Miata Turbo Forum -Boost cars, acquire cats.

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Old 06-17-2015, 10:42 AM   #3981
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random question: are you controlling the vics switchover?
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Old 06-17-2015, 10:43 AM   #3982
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I have it wired into the DIYBOB on my MS3x but I have no clue if it is functioning properly. Probably should data log to see if it is kicking in or not.
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Old 06-17-2015, 11:02 AM   #3983
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Jeff, this was my experience using an MS1-based MSPNP for VICS:

Repurposing MSPNP9495 EBC Output Pin for VICS

Datalogging works great and led to my discovering a "feature" of the MS1 software (see the thread).

I also did a physical observation test of the VICS actuator. When I did that, I lowered the setpoint (2K RPM IIRC) and then went around and manipulated the throttle under the hood. Above the setpoint, the VICS arm should be in its resting position (same place as when the car is off). Below the setpoint, the VICS arm should be in its actuated position.
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Old 06-17-2015, 11:11 AM   #3984
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Set to 2000rpm. Look at butterflys. Blip throttle by hand. Do butterflys move? It's working.

Set to 5500rpm until you hit the dyno again. You want two dyno graphs, one with it set to ~1000rpm, one with it set to ~10,000rpm (always off, always on). In my experience, N/A motors like it open(closed?!) between 3500 and 5500rpm. Turbo motors don't really seem to care...
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Old 06-17-2015, 11:15 AM   #3985
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yep 5500 seems to be the sweet spot. the valves should be closed below and open above. default "resting" position is open. vacuum should close them as soon as you start the car
iirc
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Old 06-17-2015, 11:15 AM   #3986
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You know, I've always wondered if it even does much with a car that has a turbo. Wouldn't a square top manifold suit it a little better?
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Old 06-17-2015, 11:32 AM   #3987
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No, doesn't do much on a boosted car -- better off with a squaretop (or just turn up the boost a little).
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Old 06-17-2015, 11:37 AM   #3988
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Yeah the flattop is likely the best oem option.
I really don't know about if it matters in boost, I keep hearing conflicting info
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Old 06-17-2015, 01:04 PM   #3989
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Quote:
Originally Posted by Jeffbucc View Post
You know, I've always wondered if it even does much with a car that has a turbo. Wouldn't a square top manifold suit it a little better?
Yes Jeff, let us give you an excuse to buy a squaretop
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Old 06-17-2015, 01:11 PM   #3990
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You know you WANT IT . . . .
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Old 06-17-2015, 01:13 PM   #3991
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gold plated with inconel fasteners, of course

and EGR block off plates cut from solid diamonds



Like a Jeff
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Old 06-17-2015, 01:15 PM   #3992
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Quote:
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You know you WANT NEED IT . . . .
Fixed that for ya.
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Old 06-17-2015, 01:30 PM   #3993
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Old 06-17-2015, 01:31 PM   #3994
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Seriously awesome prices on those lately
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Old 06-17-2015, 01:32 PM   #3995
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Send me your VICS after you buy the flattop. You have my address
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Old 06-17-2015, 01:35 PM   #3996
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I'm pretty happy with my manifold thank you!

Plus I'd not like to go through the hassle of Powdercoating it, buying gaskets, running vacuum lines, yadda yadda for a tiny inestimable gain.

Sorry y'all maybe another week you'll get to see the next episode in how Jeff goes overboard.
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Old 06-17-2015, 01:36 PM   #3997
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Quote:
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Send me your VICS after you buy the flattop. You have my address
You wouldn't get it for the price of shipping like the IAC valve I shipped yah
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Old 06-17-2015, 01:37 PM   #3998
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WTF? Where's Jeff?
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Old 06-17-2015, 01:38 PM   #3999
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Quote:
Originally Posted by Jeffbucc View Post
I'm pretty happy with my manifold thank you!
Nah, look at the finish? It does not match the valve cover! I don't know how you sleep at night.

Quote:
Originally Posted by Jeffbucc View Post
Plus I'd not like to go through the hassle of Powdercoating it, buying gaskets, running vacuum lines, yadda yadda for a tiny inestimable gain.
Isn't this what you do for fun?

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Sorry y'all maybe another week you'll get to see the next episode in how Jeff goes overboard.
This week is last weeks next week
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Old 06-17-2015, 01:42 PM   #4000
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Don't bother him with this oem peasantry. He's going IRTB's
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