Congrats on the XFi find!
Project 'nerd gear': taller tranny transplant nets +5.2% MPG - MetroMPG.com = that's the page referred to. There's also a discussion thread here: http://ecomodder.com/forum/showthrea...-gain-107.html
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Originally Posted by btroutmt
First, I'd love for the gears to be a bit taller. I feel like she's a bit wound up on the highway and I feel like there is quite a bit of fuel saving potential there. It looks like Metrompg did a final drive swap from a 93 swift and had good results from it. Is it the final drive from any model and year of swift and is it the whole transmission I would need?
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I think that's awesome you want taller gearing, since the XFi has the lowest factory gearing of all the 3-cylinder cars.
You need the trans from a
1.3L SOHC engine with 13 inch wheels, not the DOHC Swift GT (which has a short / numerically bigger final drive).
The other gear ratios will be identical, so the only reason I wouldn't just put the Swift transmission in the car is if there was something wrong with the other gears. Then you could swap the final drive gears into your transmission.
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And is the install pretty intensive? I'm not too much of a mechanic but have access to a lift and equipment at the auto hobby shop on base and a guy that knows a bit about the metro can help me out.
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You'll be fine. It was my first ever major drivetrain work on a FWD car. It took me about half a day (elapsed hours), taking my time. I left the engine in the car (supported), and took the transaxle off, slid the replacement on. The hard part was getting the replacement to line up with the engine (meshing the splined input shaft on the trans to the clutch hub on the engine). Got it eventually, lots of wiggling and some swearing.
To ensure you're getting the right transmission, you can count the teeth on the diff gearing if you like. Google to find the correct number. It's probably posted here on EcoModder or on TeamSwift.
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looks like if I can find a cluster from a 91 convertable I'll be in business with a tach. Any insight on where to look for one of those? Any help is appreciated. Thanks all!
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I'm sure it's been done a hundred times, but that one's beyond me.
Good luck & keep us posted!