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Corsa Sport » Message Board » General Chat » Projects and Builds » C16xe on Bike Throttle Bodies UPDATE (9/3/07)


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Author C16xe on Bike Throttle Bodies UPDATE (9/3/07)
Rob_Lee
Banned
Registered: 9th Dec 05
Location: Folkestone Drives: Nova 1.6 16v
User status: Offline
24th Feb 07 at 20:51   View User's Profile U2U Member Reply With Quote
Question tho... can i leave the holes open where the sliders were and use the two outlets at each end of the TB's for brake servo pipe or will it cause too much air restriction or disturbance?
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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24th Feb 07 at 22:45   View User's Profile U2U Member Reply With Quote
ideally the holes want to be filled, to keep the air passages smooth
Dave A
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Registered: 10th Dec 03
Location: County Durham
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24th Feb 07 at 22:55   View User's Profile U2U Member Reply With Quote
yes, as rob said, you want the inlect tract to be as straight and smooth as possible. are the sliders before or after the butterfly?

i.e trumpet or head end?
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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24th Feb 07 at 23:29   View User's Profile U2U Member Reply With Quote
id say trumpet end, as there are no injector bosses visible (which im assuming go after the butterfly)
Dave A
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Registered: 10th Dec 03
Location: County Durham
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24th Feb 07 at 23:35   View User's Profile U2U Member Reply With Quote
no good for vaccum take offs then anyway.
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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24th Feb 07 at 23:38   View User's Profile U2U Member Reply With Quote
although, when on the bike engine, the gaps left arent blocked up when the sliders are open. could you not just connect up the vacuum so they open as they would do on a bike?
Dave A
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Registered: 10th Dec 03
Location: County Durham
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24th Feb 07 at 23:43   View User's Profile U2U Member Reply With Quote
what are their purpose?
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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24th Feb 07 at 23:48   View User's Profile U2U Member Reply With Quote
havent a clue
what about removing them, drilling/boring out the centres so they dont cause any obstruction and then refitting them, so they stay 'shut' but not restricting anything
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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25th Feb 07 at 00:29   View User's Profile U2U Member Reply With Quote
the vacuum sliders work in the same way as a secondary butterfly. they work to maintain perfect intake velocity by matching intake diameter to intake pressure. similar to a constant velocity carb. the benefit being smoother throttle response
Rob_Lee
Banned
Registered: 9th Dec 05
Location: Folkestone Drives: Nova 1.6 16v
User status: Offline
25th Feb 07 at 10:28   View User's Profile U2U Member Reply With Quote
Well ive taken the sliders out and im gonna fill them with alloy putty.

Im going to get brake servo take off made with the manifold. Told him to do 1 takeoff on 2 and one of 4.

Anyway... the strip down begins...





Bye bye Lexmaul

Thats already been posted to new owner
Dave A
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Registered: 10th Dec 03
Location: County Durham
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25th Feb 07 at 18:11   View User's Profile U2U Member Reply With Quote
vaccum takeoffs are better on cylinders 3 and 4 due to the position of water pipes under the manifold. like this:
Dave A
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Registered: 10th Dec 03
Location: County Durham
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25th Feb 07 at 18:12   View User's Profile U2U Member Reply With Quote
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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25th Feb 07 at 18:15   View User's Profile U2U Member Reply With Quote
I had vacuum take-off's on cylinders 2 and 3 and the water pipe got in the way
Rob_Lee
Banned
Registered: 9th Dec 05
Location: Folkestone Drives: Nova 1.6 16v
User status: Offline
26th Feb 07 at 00:02   View User's Profile U2U Member Reply With Quote
i might just wait till the manifold is send to me and then tap it myself for the take off
Rob_Lee
Banned
Registered: 9th Dec 05
Location: Folkestone Drives: Nova 1.6 16v
User status: Offline
10th Mar 07 at 10:12   View User's Profile U2U Member Reply With Quote
Right bit of update.

Aint gonna have all the bits for the bike TB's for a while so gone down another route now to get it back on road.

Bought a performance inlet which is currently being made so im moving stuff around in the engine bay to fit it.

Taken off the engine loom so i can hid it a bit more... removed the battery ready to go into the boot and also gonna remove the firewall to make it a bit neater in the engine bay








[Edited on 10-03-2007 by Rob_Lee]

[Edited on 10-03-2007 by Rob_Lee]
Rob_Lee
Banned
Registered: 9th Dec 05
Location: Folkestone Drives: Nova 1.6 16v
User status: Offline
10th Mar 07 at 10:16   View User's Profile U2U Member Reply With Quote
Ive also done away with the throttle body cooling pipes as the are really small bore and feel they are more of a restriction than anything. Ive split the pipe and joined it straight from the coolant tank to the gallery pipe at the back of the block getting rid of the horrid T piece the C16xe/C20xe conversions have as i think it looks untidy.

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