Cheap, simple, non-factory FI solution, parts, etc..., Type IV - This oughta be fun... |
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Cheap, simple, non-factory FI solution, parts, etc..., Type IV - This oughta be fun... |
Gint |
Jun 4 2009, 04:39 PM
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#1
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Mike Ginter Group: Admin Posts: 16,083 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
I've thought about doing a Megasquirt for a while now to replace my carbs. I have a Mallory that works great, so to keep the initial cost down as well as keep it simple, I want to do fuel only, but have an upgrade path available for ignition later. Ideally if this could be done for under $500 that would be fantastic.
So... What is the easiest, cheapest, most simple solution for induction parts? Throttle bodies, injectors, TPS, etc...? Which MS unit has the flexibility to do fuel now and ignotion later without starting all over again with a different ECU? Engine is a 2056 that is built on a 1.8 case and heads with a 2.0 crank, rods and P/Cs. Currently running dual Weber 40 IDFs. (IMG:style_emoticons/default/idea.gif) (my own note: 40 IDF 70 9A, Italy) |
underthetire |
Jun 10 2009, 03:37 PM
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#2
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Again, forget the MS1. Go MS2. If you plan on using stock injectors, the price of the large resistors required on the MS1 to raise the impedance will offset the cost. As far as the direct coil hookup, mine works ok, but I do think there is noise in the tach line. I am currently changing to a shielded cable for this which should eliminate the noise until I can pull the engine to do my crank trigger. I run my MS2 in the engine bay, but I don't drive it in the rain. A plastic cover would be nice to protect it however.
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Rotary'14 |
Jun 10 2009, 04:14 PM
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#3
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Senior Member Group: Members Posts: 753 Joined: 24-April 05 From: Los Angeles Member No.: 3,977 |
Again, forget the MS1. Go MS2. If you plan on using stock injectors, the price of the large resistors required on the MS1 to raise the impedance will offset the cost. As far as the direct coil hookup, mine works ok, but I do think there is noise in the tach line. I am currently changing to a shielded cable for this which should eliminate the noise until I can pull the engine to do my crank trigger. I run my MS2 in the engine bay, but I don't drive it in the rain. A plastic cover would be nice to protect it however. I got my resistor pack from an 86-88 Mazda RX-7,, I believe many manufacturers used the cheaper priced low resistance injectors in practically every car made from 84~92. If you find a 4 cylinder,, the resistor pack is perfect for what we want to do, and these resistor packs were designed for this application, so the heat should not affect them. As far as ignition noise,,,, I'm not sure of this,, but couldn't one use the signal of a pertronix for an rpm input to the MS? I'm not sure of this so take with a large grain of salt. It would be a cheaper alternative to using an MSD box if it works. -Rob |
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