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Old 05-16-2012, 10:33 AM   #1 (permalink)
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Default Cold air intake info

Im looking to get a bit more power out of my 87 sammy. without dumping alot of money into her. I occasionally have to take her on the highway and its quite a struggle to get up to speed. A couple of friends have recommended a cold air intake. Ive read up on the theoretical pros and cons but I want to get the real world facts on it.

1. Air there any major cons?
2. Will I need to retune my carb?
3. How much of an increase in power should I expect?
4. Whats the best company to go for?
5. Is there somewhere else I should spend my money instead?

Thanks for any help
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Old 05-16-2012, 11:13 AM   #2 (permalink)
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If the engine in your Zuke is bone stock. Spend your money elsewhere. The stock air box is a cold air system....
One of the best upgrades one can do to a Zuke engine to increase the performance is a carburetor conversion.
It can be done for under $125.... Research carb conversions........Boxcar...
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Old 05-16-2012, 11:56 AM   #3 (permalink)
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Thanks for the advice ive been thinking about installing a pony carb but im hesitant about screwing up my samurai when shes my only vehicle right now. Im very mechanicaly minded but I have very little experience on cars.
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Old 05-16-2012, 12:11 PM   #4 (permalink)
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Look up Corolla carb swap....Boxcar
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Old 05-16-2012, 12:24 PM   #5 (permalink)
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Scratch that last piece of advice.
This will be quicker.
1978 Toyota Corolla 2TC 1200 manual choke carb. $99 - $125 New.
As near a direct fit as you will find.
Needs a hand fab'd base gasket. And a throttle cable conversion bracket. And of course a choke cable.
You will end up with instant starts, Better bottom end , Better top end, and better MPG.
The entire conversion can be done in less than an houer...


...Boxcar...
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Old 05-16-2012, 03:47 PM   #6 (permalink)
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x2 the above but I feel compelled to add something about "cold" air intakes.

An open element filter under the hood is a HOT air intake, albeit less restrictive. Less restriction is ok but not a big deal for a 1.3 or 1.6L engine with CFM requirements closer to a commercial grade weedeater than a small block V8. Most factory air boxes are well designed for stock or near stock engines and definitely preferable to sucking heat from under the hood. Doing nothing but throwing on a free flowing open element filter would almost certainly be counterproductive overall.

Cool charge (air/fuel entering engine) temperature is seriously underestimated or not even considered by many while performance nuts go to great lengths fabricating intake systems to avoid under hood heat from ever seeing the intake ports. Elaborate insulated custom airboxes and duct work, even dry ice boxes/fuel coils to chill the fuel before it reaches the TB/carb, lowering charge temp is free horsepower and has benefit for stock or performance vehicles. Obviously the Samurai with a Suzy engine is far from a race car but the theory of cool charge temp holds true, lending favor to a proper OEM air box over an open element system.

Decent cold air intakes include insulated or heavy shrouding to isolate the otherwise exposed filter element from under-hood heat and provides an avenue for cool air to enter the filter chamber, usually through the factory port. They are also considerably more expensive than the cheapo open element systems found on ebay. *Generally* If your vehicle reeeally needs that extra CFM then a proper low restriction cold air intake is money well spent.

Mine came with an open element and I will loose it and go with some type of factory air box as soon as I find one to adapt.

Tony
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Old 05-16-2012, 04:03 PM   #7 (permalink)
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Thank you for all the advice everyone. It sounds like its time for me to figure out this carb swap.

Wish me luck
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Old 05-16-2012, 05:16 PM   #8 (permalink)
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Quote:
Originally Posted by Boxcar View Post
Scratch that last piece of advice.
This will be quicker.
1978 Toyota Corolla 2TC 1200 manual choke carb. $99 - $125 New.
As near a direct fit as you will find.
Needs a hand fab'd base gasket. And a throttle cable conversion bracket. And of course a choke cable.
You will end up with instant starts, Better bottom end , Better top end, and better MPG.
The entire conversion can be done in less than an houer...


...Boxcar...
I am interested in doing this carb swap as well. Do you know where i could find a new 2TC 1200 manual choke carb??

Thanks.
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Old 05-17-2012, 08:00 PM   #9 (permalink)
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X2 on where to buy the Corolla carb manual choke new?
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Old 05-17-2012, 10:58 PM   #10 (permalink)
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E BAY...Boxcar...
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