Not sure yet. There is a hydra in the car now, but supposedly it's a 7 wire hook-up to run the GM computer, which is very programmable. Oh, and I referred to the wrong car below, the speed has done that mpg, not Elvis. Elvis has spent most his life resting in shop corners.
Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com orders 1-800-FLY-MX5S tech support 970-464-5600 Don't miss Flyin' Miata's Open House! Aug 14-17, 2008 ________________________________ From: Chuck [mailto:[EMAIL PROTECTED] Sent: Friday, June 13, 2008 10:40 PM To: Bill Cardell Cc: miatapower List Subject: Re: MPG up 50% so far Bill- Are you going to run the 5.7 with the Hydra? THAT would be cool! -Chuck ------------------------ Bill Cardell wrote: Elvis has done as high as 36 on the highway with fmii hydra at steady 75-80. Will be interesting to see what 5.7 litres will do geared to run 1600 or so at 80. Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com orders 1-800-FLY-MX5S tech support 970-464-5600 Don't miss Flyin' Miata's Open House! Aug 14-17, 2008 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brad Franks Sent: Friday, June 13, 2008 8:53 PM To: Robert McElwee Cc: miatapower List Subject: Re: MPG up 50% so far I don't want to burst your bubble, but I would still hold on to that 35 mpg target. In my NA 1990 1.6L Miata with the stock ECU (and CAI w/ K&N and 4-2-1 header) I generally average 30 mpg without trying and can get 32 if I work at it. I ride on Falken 185/60/14 ZE-915's @ 26-ish PSI (I think it's like 27 front and 25 rear). I have an Autometer LED based AFR gauge and an oem-ish heated Bosch O2 sensor (from FM). I use that as my "economy" gauge - when it's dithering I'm good, if it goes solid 15.5+ I back off the throttle and get it dithering again. I don't hypermile though - I coast with the engine on rather than off. Any time I can be in high vacuum I will generally be in neutral instead. I also have an Autometer electric fuel pressure gauge in the dash - I watch that and try to keep my fuel pressure as low as possible. I suppose this is the same as the vacuum gauge as the fuel pressure is a function of vacuum on the fuel pressure regulator. Of course all of my high mileage means nothing when you add in the cost of a quart of oil every 80 miles or so. With your tunable ECU I could see you creeping up on 35, possibly into 36 but I have my reservations about 40 mpg. If you make it there I will GLADY eat my shoe and be on the phone to FM for a new ECU. Brad Robert McElwee wrote: I checked my mileage today and it is up 50% since I started the project (30.5 MPG vs 20.0 MPG). I'm pretty psyched about it because I have not really spent much time working on the car. It would seem that I could possibly get to 40 MPG now instead of the 35 that I had for a goal. So far the only mods I have done are removing the SC (intake is just a PVC coming 90 degrees out of the manifold with an FM purchased K&N filter), pumping the tires up to 50 PSI, and dropping the Master Fuel from 100 to 90 (RC 440s). Of course, I have changed my driving habits quite a bit. _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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