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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Another GL1100 Megasquirt EFI project
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<blockquote data-quote="thesteve" data-source="post: 162576" data-attributes="member: 4514"><p>So I did use some GL1200 parts, but there's a lot of stuff that isn't ideal on the GL1200 that I had no interest in bringing over to mine. Even Honda gave up on EFI after just a few years with it; they didn't try again until the GL1800 as far as I'm aware. The GL1200 has two MAP sensors, uses engine coolant to actuate an air valve for idle, doesn't support a wideband O2 sensor, doesn't have tunable maps, etc. It's just old tech at this point.</p><p></p><p>I used the 1200's EFI plenum since it was easy to adapt to the 1100 engine, but most of the other parts have more modern equivalents now. I don't really need the 1200's fuel pump for instance. The newer pumps are smaller, cheap and easy to find, and aren't 25 years old. It made the most sense to take just the plenum.</p><p></p><p>You could easily modify your 1200 engine like that and the Megasquirt would be able to handle it without issue. The stock ECU wouldn't understand the added airflow and you'd probably run pretty lean, but here you could easily tune for max power with those parts and not suffer any drivability issues whatsoever.</p><p></p><p>I've been out riding and tweaking settings all morning. It runs fantastically. I've got a nice smooth idle at 950 RPM, near-perfect throttle response, and good power and smoothness up to about 7000RPM. I'm still working on the top end, but the brakes on this bike of mine are beyond shot so high speed riding is a bit nerve wracking. I also don't have a headlight or turn signals yet so I really can't play with it unless it's light outside.</p></blockquote><p></p>
[QUOTE="thesteve, post: 162576, member: 4514"] So I did use some GL1200 parts, but there's a lot of stuff that isn't ideal on the GL1200 that I had no interest in bringing over to mine. Even Honda gave up on EFI after just a few years with it; they didn't try again until the GL1800 as far as I'm aware. The GL1200 has two MAP sensors, uses engine coolant to actuate an air valve for idle, doesn't support a wideband O2 sensor, doesn't have tunable maps, etc. It's just old tech at this point. I used the 1200's EFI plenum since it was easy to adapt to the 1100 engine, but most of the other parts have more modern equivalents now. I don't really need the 1200's fuel pump for instance. The newer pumps are smaller, cheap and easy to find, and aren't 25 years old. It made the most sense to take just the plenum. You could easily modify your 1200 engine like that and the Megasquirt would be able to handle it without issue. The stock ECU wouldn't understand the added airflow and you'd probably run pretty lean, but here you could easily tune for max power with those parts and not suffer any drivability issues whatsoever. I've been out riding and tweaking settings all morning. It runs fantastically. I've got a nice smooth idle at 950 RPM, near-perfect throttle response, and good power and smoothness up to about 7000RPM. I'm still working on the top end, but the brakes on this bike of mine are beyond shot so high speed riding is a bit nerve wracking. I also don't have a headlight or turn signals yet so I really can't play with it unless it's light outside. [/QUOTE]
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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Another GL1100 Megasquirt EFI project
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