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snorkel and highway driving

Tech Talk for Suzuki owners.

Moderators: lay80n, sierrajim

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snorkel and highway driving

Post by jacka »

Im running 3.9 ratios, series 3 rockhopper on 31" simexes. I can do 100 possibly 110 depending on the wind. I have a home made snorkel, which I discovered that when I reversed the cobra head on top, I could sit comfortably on 100K. Why is this so? Do I need toadjust my carby to run the head forwards?

Thanks in advance.
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Post by alien »

perhaps too much air was being forced in and causing the engine to run lean? just a thought =)
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Post by christover1 »

In colder weather I can't run my snorkle at highway speeds, as it freezes the carby, and runs crap, and/or stalls.
I shut it off at the air filter cold/warm switch in winter, therefore getting warmer air from under bonnet.
It's fine offroad tho, in any weather.

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Post by lay80n »

If it runs better backwards, leave it there. My carby has iced up too on really cold nights. Though usually i dont have an issue with the snorkel head pointed either way.
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Post by Guy »

I used to have icing issues as well.
This is more prevelant with the a vit carb bolted to a sierra manifold as the carb doe not get enough hot water running through it ..
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snorkel

Post by jacka »

Yes I am running a vitara carby, so is there any suggestions or do I leave it as is?
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Post by nicbeer »

love_mud wrote:I used to have icing issues as well.
This is more prevelant with the a vit carb bolted to a sierra manifold as the carb doe not get enough hot water running through it ..
Just a quick one, Did the vit carb perform better or same as a normal sierra one?

Anyone know how a toyota 4k carb will be from this icing? give man choke system.

Nic
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Post by Guy »

nicbeer wrote:
love_mud wrote:I used to have icing issues as well.
This is more prevelant with the a vit carb bolted to a sierra manifold as the carb doe not get enough hot water running through it ..
Just a quick one, Did the vit carb perform better or same as a normal sierra one?

Anyone know how a toyota 4k carb will be from this icing? give man choke system.

Nic
The answer is dunno ..
When I had a 1.3 I had a 1.3 carb, When I had a 1.6 I had a 1.3 head with a 1.3 intake and a 1.6 carb :silly: and mine was rejetted to take advantages of other mods done to the head..

To be honest I dont think that a 1.6 carb would make a huge if any difference on a 1.3 unless it had some other mods to help it breathe better as well ..
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snorkel

Post by jacka »

I am running a vitara head also, Ive been told that too much air can be harmful as the carby engine has no computer to compensate unlike EFI. What are your thoughts?
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