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Author Topic: bypass TB heating?  (Read 10340 times)

Offline axewielder

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Re: bypass TB heating?
« Reply #60 on: 18 September 2009, 16:17 »
cool man, on mine both pipes were exact the same size.
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Offline Khare

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Re: bypass TB heating?
« Reply #61 on: 18 September 2009, 16:18 »
Quote from: axewielder on 18 September 2009, 16:17
cool man, on mine both pipes were exact the same size.
yup on mine too.
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Offline Ess_Three

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Re: bypass TB heating?
« Reply #62 on: 18 September 2009, 16:19 »
Quote from: Khare on 18 September 2009, 16:10
Done it you're way axewielder. Works perfectly.

Ess, basically there are 2 pipes going to tb, one from front head flange and the small one from header tank. I unclipped the one from front flange to tb, and connected it so instead of from flange > tb, it now goes flange > header tank. It replaces the header tank small line.

Sounds spot on to me!
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Offline axewielder

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Re: bypass TB heating?
« Reply #63 on: 18 September 2009, 16:20 »
so what was all that copper+instrument pipe stuff about, i was just lost  :laugh:
sorry if my earlier descriptions were abit sh!t, at least were on the same page now
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Offline Khare

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Re: bypass TB heating?
« Reply #64 on: 18 September 2009, 16:22 »
basically joining up the 2 pipes that go to tb dude.

Like so.

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Offline axewielder

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Re: bypass TB heating?
« Reply #65 on: 18 September 2009, 16:30 »
aha makes sense now, but my ways best baltently lol
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Offline Khare

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Re: bypass TB heating?
« Reply #66 on: 18 September 2009, 17:46 »
took it for a drive. Didn't really step on it due to circumstances but haven't really noticed much of a difference apart from maybe a little bit more backfiring, so maybe it has affected something and now it's pumping more fuel in or maybe the mix is just purer due to colder air. Not a clue. Let's see how she does on the dyno.
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Offline Wayne

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Re: bypass TB heating?
« Reply #67 on: 18 September 2009, 20:58 »
Cannot see it make much difference plus will affect how it runs at the end of the day.
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Offline Khare

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Re: bypass TB heating?
« Reply #68 on: 18 September 2009, 21:00 »
Quote from: Wayne on 18 September 2009, 20:58
Cannot see it make much difference plus will affect how it runs at the end of the day.
Only the JKM RR day will tell  :smiley:
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Offline danny_p

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Re: bypass TB heating?
« Reply #69 on: 18 September 2009, 23:53 »
IMO this is a pointless mod.    consider why it was done as it will have been done for a reason.

at full throttel with the engine pulling some revs  the air speed though that TB is going to be quite high it simply wont be there long enough to pick up heat.

but at part throttel you have a reasonable amount of air flowing,  and expanding into the manifold as the pressure drops as it flows past the butterfly. gas expands temp drops.  chould it be possible that with quite low ambient tempritures and realativly high humidity  that the air tempriture drops below the freezing point of water at whatever pressure it's at there and causes ice to build up ?    pritty much the same as carb freezing in a way

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