Mechanical secondaries!
12-12-02, 10:50 AM
#1
Full Member
Thread Starter
Join Date: May 2002
Location: Texas
Posts: 179
Likes: 0
Received 0 Likes
on
0 Posts
Mechanical secondaries!
Whats up ! well im wondering if it will be better for cold winter start , well every once in while they get stuck and its getting to me well how do i go about doing it? yes i have a 12A with a nikki no emissions .
12-12-02, 11:09 AM
#2
I read your email
mechanical secondaries will not help at all for starting.
The secondaries are used to deliver a higher volume of fuel/air to the engine at high RPM. When yours get stuck, what happens? When I had my Cosmo a hose flopped into my linkage once which caused my secondaries to stay wide open. Now that was exciting! The car kept accelerating even though my foot was off the pedal. I had to turn the key off to stop it. I was surprised that my exhaust system didn't blow to pieces from the enormous back-fire that ensued.
Is that what happens to you?
The secondaries are used to deliver a higher volume of fuel/air to the engine at high RPM. When yours get stuck, what happens? When I had my Cosmo a hose flopped into my linkage once which caused my secondaries to stay wide open. Now that was exciting! The car kept accelerating even though my foot was off the pedal. I had to turn the key off to stop it. I was surprised that my exhaust system didn't blow to pieces from the enormous back-fire that ensued.
Is that what happens to you?
12-12-02, 02:41 PM
#3
Stratoflattener
Join Date: Apr 2002
Location: Lincoln, NE; Cambridge, MA
Posts: 475
Likes: 0
Received 0 Likes
on
0 Posts
inittab; gee, I haven't had anything quite that extreme happen to my 7!
I recently converted to mech. secondaries, and my overall impression is that, while they don't really increase power noticibly (why would they?), they do make throttle response quite a bit more linear, which I believe is one of the most incredible aspects of my 7; almost perfectly linear throttle response (my dad's '01 VW Passat is a bitch to drive, cause the power comes in spurts, almost like it can't decide whether to produce no power, or full power, compared to my car).
I've also heard that converting over decreases your gas milage significantly. I have not noticed a change drastic enough to warrant switching back(I'm getting about 15 or so miles less per tank now, out of about 220). One thing you should definitely do, when you switch, though, is to thoroughly clean, or at least spray all moving parts (outside the carb) with penetrating lube, like WD-40.
I recently converted to mech. secondaries, and my overall impression is that, while they don't really increase power noticibly (why would they?), they do make throttle response quite a bit more linear, which I believe is one of the most incredible aspects of my 7; almost perfectly linear throttle response (my dad's '01 VW Passat is a bitch to drive, cause the power comes in spurts, almost like it can't decide whether to produce no power, or full power, compared to my car).
I've also heard that converting over decreases your gas milage significantly. I have not noticed a change drastic enough to warrant switching back(I'm getting about 15 or so miles less per tank now, out of about 220). One thing you should definitely do, when you switch, though, is to thoroughly clean, or at least spray all moving parts (outside the carb) with penetrating lube, like WD-40.
12-12-02, 08:23 PM
#5
357, the only reason your gas mileage went down is becuase your probably getting on it more and thus using less fuel. Same thing happened to me when i first did the mod, but I'm getting around 20mpg and thats mostly back roads, so don't worry, your mileage will go back up.
Thread
Thread Starter
Forum
Replies
Last Post
eplusz
General Rotary Tech Support
15
10-07-15 04:04 PM
