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Old 11-28-2004, 06:04 PM
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Default TB bypass

not sure about the TB bypass. good mod? can someone explain exactly what it is. thanks in advance
Old 11-28-2004, 07:17 PM
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it eliminates the coolant from passing through your throttle body, which in turn heats the tb up and why heat up the housing where you want the air coming in, to be as cold as possible to begin with?

go to shaner's website, he has details on what is exactly needed for a $5-7 tb bypass kit from lowes do a search on google cuz he's not a sponser here yet AFAIK.
Old 11-28-2004, 07:23 PM
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can anyone tell us if it is a good idea in NY/NJ winter weather.
Old 11-28-2004, 07:25 PM
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Originally Posted by bigman
can anyone tell us if it is a good idea in NY/NJ winter weather.
you can always re-route it back through the tb for the winter months. haven't really heard of anyone having issues as long as your car is warmed up.
Old 11-28-2004, 08:14 PM
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what would happen if it wasnt hooked up during the winter months in freezing weather?
Old 11-28-2004, 10:51 PM
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it should not be a problem. last year when i had to drive my car in the winter i had it done, and no problem. i live near chicago, and it gets pretty cold.
Old 11-30-2004, 12:08 PM
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BMR fabrication has a kit for sale on their website for everything you need to do the mod, i think the price used to be $10 but now they've raised it to $15
Old 11-30-2004, 12:12 PM
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I'd recommend getting a kit so you don't have to go looking around for the right parts, and it should add about 20 HP or so...well, maybe not that much, but every little bit helps, right?

FWIW, I ran my bypass in Colorado Springs during the winter without issue. It'll be going to Chicago in a couple of weeks as well.

Steve
Old 11-30-2004, 12:35 PM
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Ran mine in Cleveland in 10 degree weather, no issues.
Old 11-30-2004, 01:14 PM
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There are 2 parts to the TB mod (the original form anyway). You also do the bump-stop mod where you grind the surface of the throttle bump stop so the butterfly opens 100%. It's opens to about 90-95% from the factory. You really need a tuner to make sure where 100% is. If you go past that point you will throw TPS error codes.
Old 11-30-2004, 01:36 PM
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be careful if you want to do this, mine was opening to 99.xx% already so do not grind it until you KNOW you need to

Originally Posted by WAHUSKER
You also do the bump-stop mod where you grind the surface of the throttle bump stop so the butterfly opens 100%. It's opens to about 90-95% from the factory. You really need a tuner to make sure where 100% is. If you go past that point you will throw TPS error codes.
Old 11-30-2004, 01:49 PM
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I would not waste my money on a "Kit" when I can all be bought from a hardware store for under $2. I purchased two brass fitting from the plumbing section of Lowes and 1' of fuel line from Auto Zone. Spent under $4 total I think. I've never got a chance to drive in 25* or colder weather, so far no freezing problems.
Old 11-30-2004, 02:19 PM
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Also when grinding to hit 100%, use a voltmeter. Do NOT go past 4.72; mine is at 4.69.
Old 11-30-2004, 03:51 PM
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sounds good guys, i think for now im just going to bypass the coolant and wait on the grinding. dont know enough to do that alone. thanks again
Old 11-30-2004, 06:07 PM
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grinding really doens't help a whole lot. some open to like 80%, and you can see that its OBVIOUSLY not opening far enough. its not tough to tell when its time to stop. you'll prolly get to 95% but its better than 102%. you'd be better off doing the half-shaft mod if you want simple gains from your tb.

good idea on the kit, like i said hit up shaner's site. it has everything listed if you don't want to put any thought into it at all.




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