Removing water supply for throttle body - anyone done it?
31 October 2002, 06:41 PM
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This appears to just be warming the throttle body (probably to stop it from 'icing-up). I have re routed this now 
.
Anyone else done this mod??? benefits/downsides??
Cheers
Iain
.Anyone else done this mod??? benefits/downsides??
Cheers
Iain
31 October 2002, 09:20 PM
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Idle Speed Control Valve. It's on the passenger side of the intake manifold, there are 2 water pipes on the underside to prevent icing.
01 November 2002, 01:15 AM
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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then get some spacers made to isolate the inlet manifold from the block... Im also thinking of wrapping my inlet in exhaust heat wrap...
David
David
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01 November 2002, 10:12 AM
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I think the ISC valve has bimetallic spring acting on a 2nd 'flap' in the unit. Its certainly not there just to stop it freezing up.
When this valve is used for antilag purposes and just used as a simple open or closed valve, all the redundant parts like this 2nd flap are removed to increase the airflow.
When this valve is used for antilag purposes and just used as a simple open or closed valve, all the redundant parts like this 2nd flap are removed to increase the airflow.
01 November 2002, 11:27 AM
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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Pete, you on about the turbos, spacers or ISCV's??
Buy something? Nah.. Make it myself!
David
Buy something? Nah.. Make it myself!
David
01 November 2002, 02:59 PM
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Yeah. I'll try and think back how its done and let you know. This is the mod you will get when you buy one direct.
Then its just a matter of driving the valve direct either fully open (ALS on) or fully closed (ALS off). Then jack the throttle open 0.5mm to allow it to idle. Increase throttle opening and add cylinder cut to increase ALS affect.
Then its just a matter of driving the valve direct either fully open (ALS on) or fully closed (ALS off). Then jack the throttle open 0.5mm to allow it to idle. Increase throttle opening and add cylinder cut to increase ALS affect.
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