Comments on: Metro XFI Cam Advance Experiment

By: Deas M. Richardson Jr.

Deas M. Richardson Jr. — Sun, 10 Aug 2008 22:25:05 +0000

Hi, I have purchased a 1992 LSI Yellow Convertable. I get between 39 and 44. I am wanting better MPG. I purchased a reground cam and a set of pistons. I do not know anything about working on motors so I am going to have to find a mechanic to install these. I really want your opnion on if I will see a difference in MPG. I bought the car for $1900.00.

Thanks,

Deas M. Richardson Jr.

By: david

david — Thu, 19 Jun 2008 23:38:55 +0000

I have a 91 geo LSI convertable, /gets about 31mpg. Will having cam ground to XFI specs and that alone help the mileage?

By: jeff

jeff — Thu, 12 Jun 2008 00:32:32 +0000

Did milling the head .040 get you any more mpg? Jeff

By: Scott-crazyman@teamswift.net

Scott-crazyman@teamswift.net — Wed, 12 Dec 2007 10:32:49 +0000

No, like Rick said, the cam, the computer, and the gear ratio are all different. The XFI has the smallest cam and the tallest gear. The computer is programmed to work with these differences. Even an XFI cam and computer will help mileage.

I got tired of the three, and installed a Suzuki Swift GTi twincam four cylinder engine in mine. While losing mileage, it gained tons o fun, and still get as good of mileage as a Saturn.

By: Scott-crazyman@teamswift.net

Scott-crazyman@teamswift.net — Wed, 12 Dec 2007 10:26:22 +0000

You can counteract the surging by holding the throttle at 2000-3000 rpm and adjusting your TPS. I got the best throttle response and driveabilty by tuning my TPS to match what mods I’ve done. It will surge at the stock setting, and just turn it back and forth until it smooths out and revs quick. Lock it down when you get a sweet spot.

I love these cars. I used to hate them, until I bought one.

Keep up the good work.

By: Mark

Mark — Wed, 06 Jun 2007 17:31:04 +0000

The XFI model has different ignition than standart model?

By: yavor1912

yavor1912 — Tue, 29 May 2007 03:29:16 +0000

you got it my friend.the difference is only the ingection.both they have the same engine G10 -993cc,55 hp.i took off the ingection system from geo metro xfi and i put it after that on my geo metro regular and now i have 55 mpg .i am very happy to have the most fuel efiicient car in USA except Honda Insight but it is about 20.000 $ and it is only two seat car.it has only 2 seats. you can have the same MPG if your Geo is 3 cilinder and manual transmission. thank you YAVOR

By: Dan Koch

Dan Koch — Fri, 09 Mar 2007 20:58:45 +0000

What are the differences between a base Metro and a Metro XFi?
Thanks,
Dan