Fuel Injection Conversion

[7th day]

Thought some of you would be interested in this.

http://meweb.ecn.purdue.edu/~morrisjs/megasquirt/suzuki_injection.htm

[DanTheMan]

It would be nice if all the pictures would open up. Maybe I just didn't wait long enough........

[7th day]

I should have mentioned that this isn't my project it was done by an engineer where I work.

[Hap Call]

The pictures do take a while to open but it is a great article...I would like to get a hold of the guy who did it and have him do a technical write-up for the GSR.

Hap

[Tarbash 27]

I think Ill stick to carburetors.

[jaysihn]

Hey guys, this is my project.

I started it last september and am nearing the end of the fuel control portion (just have tuning left)

Let me know if you want more info about any part.

[Hap Call]

Hey guys, this is my project.

I started it last september and am nearing the end of the fuel control portion (just have tuning left)

Let me know if you want more info about any part.

Any info would be great. If possible, can you track what it cost you to do the conversion?

Hap

[80gs1000e]

Wow, nice job man & cool looking bike. How is it runing?

[jaysihn]

Its running decent right now. Some spots in the fuel map aren't quite right yet. I just have to install my wideband O2 sensor and do some more tuning and it should be good to go.

Price.. hmm.. the big hitters are the Megasquirt which was around 200 I think. The throttle bodies were about 50. The fuel pump was another 50.

The adapters only cost 10 dollars in materials but I spent about 10 hours machining them so that cost woudl be much higher if I didn't have access to the right tools.

A narrow band o2 sensor could get the job done and cost about 60 bucks but I'm putting a wideband kit in which is another 200.

Temp sensors were 12 a peice and I bought 2 fo them.

The pipe parts and hose barb fittings cost about 25.

Miscellaneous wires and other parts probably cost about 50.

I'd say I'm at about $600. I went into this project looking for a fun project, not necessarily a huge performance improvement. It is turning out to be both though.

[80GS1000]

Out of curiosity, how hard would it be to take a fuel injection system from a newer bike and put it on a GS? Like an EFI system from a GSXR, the new Bandit etc. etc?

[lecroy]

Umm, where have I seen this....

Oh yea.. Very similar..

Nice work!! Agree, it justifies a detailed write up.

[jaysihn]

haha where did that picture come from? I honestly never saw that. Its funny because I was going to put some ribs in the collar just like that but after the 10 hours of machining I figured they were good enough.

Putting the EFI from a newer bike is what I did...
You won't get away with using teh stock ECU because its just not going to be tuned right for your motor unless the motors are identical configurations.

[ArttuH]

Very good looking work, congratulations! I especially like about those intake adaptors.

I went into this project looking for a fun project, not necessarily a huge performance improvement. It is turning out to be both though.

Yep, that's exactly how I started my Megasquirt project with my GS1100. And I was too gladly suprised about performance increase. I got about 15% more top end power and even more mid range torgue. There is some before and after dyno graphs: http://www.iki.fi/arttuh/mopo/en_summary.html

[lecroy]

haha where did that picture come from? I honestly never saw that. Its funny because I was going to put some ribs in the collar just like that but after the 10 hours of machining I figured they were good enough.

Made these to adapt a carb. to a turbocharger. The flow is reversed when compared to yours. Same problem though. Mounts like this:



I would like see details on:

Which sensors you used
Tune (how you mapped it assuming they are using maps)
Pros and cons to the squirter thing (anything you see missing from what's available already)
Any custom software you may have done for it
Robustness (after you have a year or so of time riding it)

[Busafied]

Lecroy-
The megasuirt is what I am going with to control my secondaries later this yr.
Several members I know on the busa boards are using them now, instead of the high price alternatives.
Many options available for them, many configs.

I just don't feel the need to sell a kidney for one controller ($1500.oo and up),
when I can use one that several people (about 15 so far I know) are having excellent results with for alot less money, and doing the SAME + MORE then your basic controllers..

Please keep the details comming, you guys are peaking my intrest again/

Ron