2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 09-17-02, 07:35 PM
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a question no one can answer.

Im sure no one will know this... But i need to know!

heres the Q:

How long is the throw on the actuator that operates the 5th and 6th ports on a 13b na?
Old 09-17-02, 07:47 PM
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Do you need to know an exact measurement or an approx, dimension?

Last edited by 1FastT2; 09-17-02 at 07:55 PM.
Old 09-17-02, 07:52 PM
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Exactly 1.2 CM for an '86-'88...Come on, give me a hard one...
Old 09-17-02, 07:54 PM
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ah Aaron you beat me too it
Old 09-17-02, 08:59 PM
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hmm... how long is it on a 90' ... it seems a lot longer then 1.2 cm. It looks to be over an inch (2.54cm).

My plan is to remove the actuators completely and replace them with electric solenoids. This is so i can mess around with things that are going to effect the operation of the actuators. Yes, i know thers ways to use the air pump and all, but i could be tampering with that too.
Old 09-17-02, 09:07 PM
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Solenoids will not hold up to the exhaust heat. It's been tried before. But if you are going to do it, don't worry about the throw too much. Just get a solenoid good for 3 CM, and use a spring to take up the slack. Much less stress on the solenoid if it's done that way. Remember: the '90 atuators push up, not pull in to actuate the ports.
Old 09-17-02, 09:35 PM
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What kind of electric actuator are you thinking??? Most electric actuators like tape head or door lock motors can't stand a heavy on period, like driving would entail.

The other draw back for electric actuators is the life cycle. A common OEM door lock actuator has a about a 15000 cycle life. That’s about 4 times a day for 10 years... yet your gonna hit 3800 RPM how many times a day??? Say you drive 10 miles and back in med traffic, that would be easy 30 or 40 times.

That’s about 500 miles before the actuator dies.
Old 09-17-02, 10:15 PM
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http://www.electromechanicsonline.co...2EC%2E%2C+Push

I wasent thinking door latch solenoid ever. take a look at these.
you can get them with a continuous duty cycle.
Old 09-18-02, 12:46 AM
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Originally posted by Aaron Cake
Exactly 1.2 CM for an '86-'88...Come on, give me a hard one...
Damn, that is sick. The man really, really knows his 7 don't he?
Old 09-18-02, 12:56 AM
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Originally posted by Aaron Cake
Exactly 1.2 CM,
only 1.2cm? dam Aaron... now I know why you needed that turbo


give me a hard one...
ah IC... that lengh wasn't when hard?
Old 09-18-02, 01:07 AM
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Originally posted by OC_
http://www.electromechanicsonline.co...2EC%2E%2C+Push

I wasent thinking door latch solenoid ever. take a look at these.
you can get them with a continuous duty cycle.
Intresting design, but requires massive heat sinks, for example the 25mm push was requiring a 2"x2"x3.2mm heat sink, so your gonna need some way too sheild and cool them in the engine compartment. It appears they are rating them at 70F or slightly less.
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