I got another toy

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irowiki
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Location: Farmington, NM

Re: I got another toy

Post by irowiki »

What would a smaller carb do?
Former Tercel Enthusiast (not a practical family car anymore but they still have a place in my heart)

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87 Corolla FX16, 105k
94 Jamboree RV (Ford E-350), 90k
95 Camry Wagon, 170k
97 4runner, 275k
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Petros
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Joined: Sun Jan 28, 2007 6:31 pm
My tercel:: '84 Tercel4wd w/extensive mods
Location: Arlington WA USA

Re: I got another toy

Post by Petros »

smaller carb improves low end performance, likely increase torque, also should improve part throttle economy as well. It moves the peak of the power curve down the rpm range, you usually sacrifice max hp, but if you do not running up that high very much anyway (like a drag racer might), the smaller carb is better for all around driveablity.

one of the reasons I am fairly happy with the small stock Tercel carb, the 3ac does not take well to much teaking for more power anyway.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
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Gottolovem
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My tercel:: 1985 SR5 with snow plow,1987 auto 1984 parts car,1987 FX-16 GTS
Location: Reno

Re: I got another toy

Post by Gottolovem »

After getting it home and doing a little research, the elderbrock carb is 600cfm nearly twice what it should be for a 3.7 v6! :shock:
20150417_194458.jpg
I drained the oil and it was as thin as milk!
I'm putting a two barrel back on it ASAP
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Petros
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Posts: 11930
Joined: Sun Jan 28, 2007 6:31 pm
My tercel:: '84 Tercel4wd w/extensive mods
Location: Arlington WA USA

Re: I got another toy

Post by Petros »

why is the oil bad? condensation from sitting too long? or is there a coolant leak into the crank case (head gasket)? or was it left out in the open with the engine exposed to the weather do you think?
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
User avatar
Gottolovem
Highest Ranking Member
Posts: 1637
Joined: Fri Jun 29, 2012 4:28 pm
My tercel:: 1985 SR5 with snow plow,1987 auto 1984 parts car,1987 FX-16 GTS
Location: Reno

Re: I got another toy

Post by Gottolovem »

The engine oil was full of fuel washing down the cylinder walls getting into the oil bath.
600cfm drowning the motor fouling plugs etc.
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