Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary) - Page 348 - Miata Turbo Forum -Boost cars, acquire cats.

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Old 06-16-2016, 10:04 AM   #6941
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Yes. The 12v ignition wire runs through the ignition switch.
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Old 06-16-2016, 10:19 AM   #6942
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Well that inhales profusely.
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Old 06-17-2016, 10:50 PM   #6943
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Old 06-18-2016, 09:40 PM   #6944
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It works




Last edited by aidandj; 06-19-2016 at 12:49 AM.
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Old 06-19-2016, 12:48 AM   #6945
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Here is what I ended up with for wiring so far. Had to go to dinner so didn't get the pumps swapped.

Grommet into the tank area.



12awg harness wrapped in sheathing. Spade terminals for the relay, ring terminals for the battery.



Hose clamps holding on the wiring. Might switch to zip ties if I need those hose clamps back at some point. I need some of the zip ties that you can stick in the holes.



Ground and F/P wire taken from the stock connector.



And here it is hooked up for testing with the stock pump. There is about a 1/16 of an inch of dirt covering the entire tank.

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Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary)-8meac5r.jpg   Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary)-q8yxvhw.jpg   Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary)-dx3wrwn.jpg   Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary)-ogrwc2h.jpg   Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary)-j5wmbsz.jpg  

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Old 06-19-2016, 01:54 AM   #6946
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nice work
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Old 06-19-2016, 01:55 AM   #6947
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thankxbb
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Old 06-20-2016, 03:07 AM   #6948
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Not overkill at all

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Old 06-20-2016, 12:58 PM   #6949
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That regulator and the return will quiet down a bit once all the air works its way out of the system. It WILL take a while, mine took several days of driving before the under hood noises settled down.

Pump is always going to be stupid loud, just embrace it. Now program the fuel pump play the first 20-30 notes of "Oh! Susanna" or "Für Elise" on startup

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Old 06-20-2016, 12:59 PM   #6950
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I'll see if I can get some notes out of it with PWM.
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Old 06-20-2016, 04:03 PM   #6951
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Old 06-20-2016, 04:07 PM   #6952
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Quote:
Originally Posted by EO2K View Post
That regulator and the return will quiet down a bit once all the air works its way out of the system. It WILL take a while, mine took several days of driving before the under hood noises settled down.

Pump is always going to be stupid loud, just embrace it. Now program the fuel pump play the first 20-30 notes of "Oh! Susanna" or "Für Elise" on startup
I guess that's one reason to stick with a non-return system -- the noisy regulator is out of the way.

I vote for playing "I Can't Drive 55" on the fuel pump. Gives you something to do while waiting for the points to expire off your license.

--Ian
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Old 06-20-2016, 04:10 PM   #6953
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I run a 450 and a 255HP, and could not stand the noise. I ended up installing a lot (probably 20lbs) of sound deadening in that area behind the seats, now it's barely audible, much quiter than a single 255 was. But street car, so I don't mind the weight there to keep it quiet. PWM'ing looks sweet though, I need to look into that.
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Old 06-20-2016, 04:16 PM   #6954
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Be warned. PWM is actually louder than on 100% lol.
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Old 06-20-2016, 04:17 PM   #6955
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Quote:
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Be warned. PWM is actually louder than on 100% lol.
Weird, I would have thought the opposite. What frequency are you PWM it?
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Old 06-20-2016, 04:20 PM   #6956
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I can only test it at 78hz. Probably to slow. I am running it at 250hz while the enigine is running. But my exhaust is too loud to hear it anyways.
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Old 06-20-2016, 10:26 PM   #6957
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Can't you drop down the menu and test at something besides 78hz?
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Old 06-20-2016, 10:27 PM   #6958
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Nope. 78hz is the max for test mode.
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Old 06-21-2016, 02:03 AM   #6959
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Bumped base pressure to 60psi. Spent about an hour tuning fuel from scratch. Fuel pressure sensor is cool, you can see pressure climb with boost, and move with DC some too.

Dyno on Sunday. Going to dial in fuel. And build a 180-190hp track tune.
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Old 06-21-2016, 04:01 AM   #6960
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Quote:
Originally Posted by aidandj View Post
I can only test it at 78hz. Probably to slow. I am running it at 250hz while the enigine is running. But my exhaust is too loud to hear it anyways.
Ah. Yeah higher frequency will be better for sure. How high will it go when running?
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