supercharger fuel management options for a 97 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to   Members

ECUs and Tuning Discuss Engine Management, Tuning, & Programming

LinkBack Thread Tools Search this Thread
Old 03-07-2011, 10:00 AM   #1
Thread Starter
Join Date: Nov 2010
Posts: 16
Total Cats: 0
Default supercharger fuel management options for a 97

I know this is a turbo forum but I thought their might be some common ground with regard to fuel management, if there's not, sorry.

I just picked up a lightly used M45 Supercharger for my 97 from flyin Miata. It did not come with any electronics, so I am looking for away to manage the fuel. I think I have found two possibilities.

flyin Miata's Voodoo Box. $415.00 plus shipping

The Gen3 PowerCard Fuel Management. $290.00 plus shipping

I am looking for ease of installation, dependability and since I live in Atlanta Its got to pass the emissions test.

If there is a third option please let me know.

Westend is offline   Reply With Quote
Old 03-07-2011, 10:27 AM   #2
Slowest Progress Ever
iTrader: (26)
thirdgen's Avatar
Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
Posts: 5,806
Total Cats: 183

I hope you know what you're getting yourself into. Once you boost a miata you become and addict. You could just throw on a Voo-doo box, but you'll also need a wide band O2 such as an Innovate LC-1. The wide band is a most important thing you will need when adding boost to your car, because you will NOT be able to tune it properly without it.
My advice?
Run away as fast as you can, or you will end up running many times of fuel management, swapping all kinds of injectors, changing your exhaust several times, and adding intercoolers and eventually you will turbo. Then you'll need to build your motor to suit your power addiction.
Trust me.
Run away now, or become "one of us".
thirdgen is offline   Reply With Quote
Old 03-07-2011, 11:22 AM   #3
Elite Member
iTrader: (7)
samnavy's Avatar
Join Date: Apr 2006
Posts: 6,020
Total Cats: 175

Fuel management for a turbo is exactly the same for a supercharger. Both of the units you've listed will let you reach about halfway through the limits of the M45... the limited factor being charge cooling... anything over about 6-7psi of boost whether your super or turbo requires an intercooler.

The Voodoo and PC will give you enough fuel to safely use 6-7psi on the stock fuel system and you'll see about 150-160whp or so depending on the health of your engine and the health of the blower. Use the highest octane gas you can, and either get a wideband O2 sensor, or pay about $200 to get it tuned.

The problem with both of those units is that they require you to hack the factory wiring harness at the ECU. I've sworn never to hack a factory wiring harness again. Once you've done it, if you ever change your mind, it is a pain in the *** to get it back to stock... and it will always look like absolute ****. It is a far better option to get a Megasquirt PNP.
It is a direct plug-in complete replacement engine computer. It is tried and true and tested enjoys the complete support of this forum. It does not only fuel, but timing as well, which is a critical component of boosted tuning. It does about 100 other things too, but you're mostly interested in fuel and timing. Megasquirt will also run any size fuel injector.

There are a couple veterans on this forum who are from Atlanta and can totally school you up. The best part about it is, you can unplug it and take it out in about 5 minutes and put the stock computer back in and nobody will ever know it was there.

I also recommend a new fuel filter... they're about $20 from any autoparts store.
samnavy is offline   Reply With Quote
Old 03-07-2011, 07:17 PM   #4
Thread Starter
Join Date: Nov 2010
Posts: 16
Total Cats: 0

My understanding is that with the Megasquirt PNP I would have to switch it back to the OME ECU for it to pass the Ga emissions test? Is this correct?
Westend is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
MP62 maintenance Pist0n Supercharger Discussion 3 10-10-2015 05:23 PM
Walbro 255lph Fuel Pump $50 lsc224 Miata parts for sale/trade 2 10-01-2015 10:17 AM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 06:09 PM.