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Old 06-28-2011, 09:18 PM   #1 (permalink)
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Default samurai gas milage vs power

I have a 1988 samurai and I am going to have to rebuild the engine, I have a 1.3l, what is the best things to do to get the most horsepower and still have a desent gas milage? thanks for all of your advice
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Old 06-29-2011, 04:06 AM   #2 (permalink)
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some of it depends on how you have your engine set up when you do the rebuild. i had fairly good fuel milage with a snorkel 2inch mandrel bent extracted exhaust with stock carb tuned in. now i have a empi double throte racing carb on and its been tuned in on a dyno and my fuel milage is upto s#$t but it goes real hard with my mods it quicker than a 1.6 vitara motor in a sierra
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Old 06-29-2011, 08:20 AM   #3 (permalink)
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The usual stuff applies. High compression pistons, 1.6l head, port matching(watch out for the cooling passages in the exhaust or be prepared to plug the passages), 3 angle valve job, cam swap, headers, 2" exhaust, carb swap... Stay conservative with the cam and carb for best fuel economy. Tuning will be key to maximizing both fuel economy and power, and is the one area most people tend to neglect after major mods.

Keep in mind that with a Samurai, the more power you have, the faster you will tend to cruise and accelerate, which will cut fuel economy. It won't be the mods reducing fuel economy, but your right foot... This is more pronounced with the Sami than with other vehicles, since it is most often limited by available power, rather than the speed limits like with other vehicles.

Even with extensive power mods to a 1.3, a "drag race" start and thrashing the engine will still not result in anything approaching quick acceleration, when compared to many other vehicles. My other car is a 1996 Impala SS, and to get the acceleration it has, I'd have to have an engine putting out around 150 HP in the Sami, which would require a pretty radical setup and/or forced induction from a 1.3. Of course, if you start getting big horsepower out of the 1.3, it won't last long...
Wayne Bengston
'88.5 Samurai JX, mostly stock
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