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Old Dec 10, 2004 | 01:39 PM
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TB Bypass

I did this mod back in May and I must say I definitely felt a small increase acceleration. So I'd highly recommend this mod...unless...

If you live in an area where it is as cold as 40 and below, or the temperature gets that low during the winter, like me, this mod is a bad idea. I noticed recently my car has taken a while to warm up and reach operating temp. One day last week while driving for about an hour it never got above 170 so my performance sucked. So I reversed the mod and since then I actually saw an increase in performance because now the engine can warm up faster and give you maximum performance.

Of course when it gets warm again I'm going to bypass it again, but during the cold it's not a good idea.
Old Dec 11, 2004 | 12:32 AM
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I don't see how running at 170 could be a problem for the engine since the closed loop end at 155. With a 160 T-Stat and a manual fan switch you can run that cold all day in the spring.
Old Dec 11, 2004 | 12:33 AM
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maybe i'm just weird...and today i really missed the bypass, its a tad slower now
Old Dec 11, 2004 | 10:18 PM
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Originally Posted by Rockford Fosgate Fan
I don't see how running at 170 could be a problem for the engine since the closed loop end at 155. With a 160 T-Stat and a manual fan switch you can run that cold all day in the spring.
what happens is your ecm goes into cold start mode dumping more fuel making you run rich prematurly wearing out the cylinders and eventually killing power
Old Dec 11, 2004 | 10:28 PM
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yeah you can only do a low temp stat if you have some sort of tuner or programmer installed thats made to work with the stat. such as a 160 hypertech stat and hypertech power programmer.
Old Dec 11, 2004 | 10:37 PM
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it still doesn't fix that rich condition that is the only purpose of the change to fool the ecm into dumping more gas
Old Dec 11, 2004 | 10:42 PM
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oh ok. yeah i ditched my desire to purchase a jet control module and jet low temp stat because of that rich condition it creates.
Old Dec 11, 2004 | 10:46 PM
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it also doesn't help with power that much anyway
Old Dec 11, 2004 | 10:47 PM
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but the TB bypass does. ****** why'd i reverse it. i miss my long squeals
Old Dec 11, 2004 | 10:51 PM
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here I always thought the TB Bypass was for v8'ers.
Old Dec 11, 2004 | 10:53 PM
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nah brian its so much easier on our cars. if youre interested hit me up on AIM.
Old Dec 14, 2004 | 08:28 PM
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i was going to do it for my car but my dad has been a machinic for over 30 years and says that its just not when the temp. gets below 40 its when there is the right barameteric pressure is just right the air blowing over the tb bore and butterfly will actually freeze. even if its like a warm day.
Old Dec 14, 2004 | 11:32 PM
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So if it freezes does the throttle cable freeze as well?
Old Dec 14, 2004 | 11:34 PM
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you get ice in the passages the throttle blades will be slightly stiff, but the big thing is the padssages can be plugged until the engine warms up, not a huge deal since you should wait for the engine to warm before tromping on it (it only takes about a minute to melt any ice that would build up)
Old Dec 30, 2004 | 09:57 PM
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IF you run the coolant through it


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