3rd gen Engine/Drivetrain Engine/Drivetrain Modification Discussions for 1999-2003 Models Only (BJ chassis)

has anyone perform a TB bypass?

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Old August-15th-2002 | 07:19 AM
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has anyone perform a TB bypass?

I read about at a Honda site. They claim 1-2 whp.
There's a coolant line going intop the TB and another coming out. The way to do it is to disconnect both hoses from the TB and connect them to using some tyoe of connector. I do not know if it really work, but I do not think it would hurt to try. 1-2 whp sounds good to me for a free mod! The only reason for the coolant to go thru the TB is to keep it hot in very cold weather so the TB plate will not stick, that's what I read.
Old August-15th-2002 | 08:31 AM
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I have done it but i don't know the gains as i did it when i had the turbo on then i took the turbo off and its still bypassed but i'm not sure if there are gains.
Old August-15th-2002 | 11:58 AM
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Bypass

I think it would be worth the couple of dollars for the brass fittings you can get at any hardware store. They are pneumatic fittings and are cheap. Maybe along with some phenolics, you might realize a noticeable gain. Give it a shot!
Old August-15th-2002 | 02:33 PM
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LOL 1-2 HP? whats the point? you won't even notice that
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Old August-15th-2002 | 03:07 PM
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$1-2 for 1-2hp has to be the best bang for the buck mods!
Old August-15th-2002 | 03:30 PM
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Question Huh?

I don't get it. How are you getting a HP gain by not routing the coolant through the TB? (And is there a danger that the butterfly will stick in cold weather if you do this?)
Old August-15th-2002 | 03:57 PM
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i'll buy that for a dollar! ...I think its worth a shot...if every body says 3-5 hp increase can be felt on the butt dyno, i.e. CAI...why not 1-2...I live in Fla...no reason for my TB to stay hot
Old August-15th-2002 | 05:29 PM
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All I did was run a braided line from the two water fittings to the other instead of spliceing the two together.
Old August-15th-2002 | 05:37 PM
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This sounds like a job for a thermostatically controlled valve. Coolant is bypassed when the outside air is above freezing, and routed through the TB when it is below?

I suppose you could have a manual valve that you open for the winter and shut for the summer too.
Old August-15th-2002 | 07:34 PM
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Originally posted by pr5owner
LOL 1-2 HP? whats the point? you won't even notice that
I know, but the power WILL be there and it also costs me $2 so why not? what do I have to lose?
did you also know that using a synthetic thinner oil like 5w30 instead of regular 10w30 is worth another 1 whp? and also using synthetic tranny fluid is worth another 1 whp? and lowering your radiator temperature is another 1 whp and replacing your spark plugs another 1 whp? so how many whp is that? get the picture?
Old August-15th-2002 | 07:38 PM
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Re: Re: Huh?

Originally posted by PseudoRealityX


by bypassing coolant to the TB, it doesnt get hot....same goes for the intake manifold. The cooler it is, the less it transfers heat to the incoming air, and hence, you get a slightly cooler intake charger, thereby denser, and thereby, more power.

ok...that was horrible sentence strucure, but im sure you can follow it.

As far as dangers...possibly..i dont know for sure. I live in Florida, so it doesnt matter.
so is there a way to bypass the IM?
Old August-16th-2002 | 07:01 PM
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http://www.mx-3.com/cgi-bin/ultimate...&f=15&t=001612
Old August-16th-2002 | 07:23 PM
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Because today is my last day at work, so I really have no reason to sell anything, since it won't invoice before tomorrow, and I won't get paid for it....
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