The supercharger thread... - Page 8 - Scion XB Forum
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post #71 of 183 (permalink) Old 03-13-2015, 09:57 PM Thread Starter
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Quote:
Originally Posted by Greg S View Post
I wouldn't put injectors in just yet. I meant that the ECU should be able to compensate for them once the S/C is installed.
I'll probably do them a day or two before the S/C is installed to let the ECU pre-learn a touch.
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post #72 of 183 (permalink) Old 03-15-2015, 12:12 AM Thread Starter
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I added the "filter" to help with the noise from the wideband gauge and it didn't do anything; maybe even made it a touch worse. I'm probably gonna end up running power and ground direct to the battery and then using a relay to switch it with ignition.
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post #73 of 183 (permalink) Old 03-15-2015, 11:28 AM Thread Starter
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Went with the APSX boost gauge; honestly it looks like junk, but I couldn't find another gauge that does fractional PSI and has a restricted range (10 PSI max).

I opted for the red LED display to better match the AEM wideband, but otherwise it should look like the picture:


http://www.wide-band.com/content/aps...-display-gauge

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post #74 of 183 (permalink) Old 03-16-2015, 03:00 PM
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The gauge isn't too bad looking. And it does the job. I got my crank pulley today and it looks like I've got a place lined up to make the 7-rib pulley for me. It'll be a modular set up so that if I want to go to a smaller pullet later on I just need to lift the car and remove a few screws to change it, not drop the engine to get a pulley remover in there.

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post #75 of 183 (permalink) Old 03-16-2015, 03:54 PM Thread Starter
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That makes sense; accessibility would be my number once concern with your mounting method, so hopefully that makes things a bit easier.

Got my split second enricher and injector adapters today (my 450cc's are EV1). I'm also ordering some 1/4" sheet steel to make the SC bracket(s) out of. Still pretty much at a standstill until the S/C arrives on Thursday.
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post #76 of 183 (permalink) Old 03-16-2015, 11:08 PM Thread Starter
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Ordered a vacuum block; realized I have quite a list of items that will need vacuum:

* Split second enricher
* Boost gauge
* Bypass valve
* Under-hood boost gauge (I have a spare mechanical one I'll mount there just for troubleshooting)
* Throttle body (if possible I'll just run it from the distro block since I have to relocate it)

I also got a look under the heat shield on the factory header and there's a LOT of empty space... I may be able to reshape the stock one for clearance without replacing it.
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post #77 of 183 (permalink) Old 03-17-2015, 03:13 PM
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Ye, I've got to figure out which connection I need on the intake manifold when I have it built. MAP and boost at least. Fortunately the actual S/C has two vacuum connections on it so those can be used for the by-pass and the main vacuum line to the brake booster.

You shouldn't need vacuum for the throttle body, it only has lines for coolant, the EVAP system, and a drain that has been removed from newer versions.

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post #78 of 183 (permalink) Old 03-17-2015, 09:40 PM Thread Starter
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Not sure if I'll run the coolant lines to the throttle or not - the S/C is probably going to increase IAT enough to offset it anyway; just depends on positioning.
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post #79 of 183 (permalink) Old 03-18-2015, 03:45 PM Thread Starter
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A day early! DVD-R for scale:



I'll be doing lots of measurements tonight.
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post #80 of 183 (permalink) Old 03-18-2015, 07:11 PM Thread Starter
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Got the pulley off (it's all screws and clips; nothing is pressed on) and I'm still working om measurements.

I took off the header heat shield and did some test placements, and while there's definitely room up top (it can go about an inch higher than the pictures and still have room for a slanted output), the header is going to be a challenge:







I'm looking at aftermarket headers, and even entertaining the idea of using a log style turbo header since it's tiny and shifts the downpipe all the way off towards the drivers side (though I am worried about flow restriction).
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