| Author | Topic |
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Location:
Brisbane
Registered:
February 2003
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Re: Turbo/blow through carb
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Wed, 21 January 2004 14:00
 
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| mrshin wrote on Wed, 21 January 2004 21:41 |
<snip>
3. The ALFA (not fiat! hah!) already has twin sidedraft (40 DCOE) webers, and they're staying right where they are. Going to be making up a reasonable looking plenum, and I've already got the fuel system (pressure reg, pump, etc.) sorted - you don't need a rising rate reg, just a 'normal' one set to 6 psi above plenum pressure is fine! As far as I can see, all I need to do is pressurise the tube going to the float chamber, and also run a hose to the diaphragm on the bottom of the carb, then spend hours on the dyno with a box of jets trying to get the mongrel thing to run. Just looking to see if I've missed anything, and if any other poor fool(!) here has done this 
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fiat/alfa/schmalfa .. they're all landfill for olive tree groves.. 
seriously now...
accel enrichment (can't quite remember how the weber does this) may need serious work?
don't forget the blow-off valve?
timing? is the motor decompressed? if so then you'll need more advance than standard at idle, but less total mechanical advance (otherwise you'll detonate from excessive advance on boost) - you could try to find a vacuum advance unit from an older turbo dizzi that responds to both vacuum and boost.
if motor is at factory compression, you;'ll definately need some kind of boost retard - and probably a modified curve as factory mechanical and vacuum advance curves will result in pinging/detonation. plus see prev para about a dizzi.
water injection - helpful in controling pinging/detonation?
a fire extinguisher for when the gaskets in the webers give up from the pressure? 
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| | Subject | Poster | Date |
|---|
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Turbo/blow through carb
|
mrshin | Tue, 20 January 2004 06:56 |
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Re: Turbo/blow through carb
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thechuckster | Tue, 20 January 2004 10:20 |
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Re: Turbo/blow through carb
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mrshin | Tue, 20 January 2004 12:26 |
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Re: Turbo/blow through carb
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thechuckster | Tue, 20 January 2004 15:14 |
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Re: Turbo/blow through carb
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mrshin | Wed, 21 January 2004 11:41 |
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Re: Turbo/blow through carb
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thechuckster | Wed, 21 January 2004 14:00 |
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Re: Turbo/blow through carb
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allencr | Wed, 21 January 2004 17:41 |
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Re: Turbo/blow through carb
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mrshin | Thu, 22 January 2004 10:49 |
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Re: Turbo/blow through carb
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Jayem | Thu, 22 January 2004 11:10 |
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Re: Turbo/blow through carb
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mrshin | Thu, 22 January 2004 13:13 |
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Re: Turbo/blow through carb
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Norbie | Fri, 23 January 2004 01:00 |
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Re: Turbo/blow through carb
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alex_ta22 | Fri, 23 January 2004 02:07 |
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Re: Turbo/blow through carb
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mrshin | Fri, 23 January 2004 06:57 |
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Re: Turbo/blow through carb
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alex_ta22 | Fri, 23 January 2004 13:10 |
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Re: Turbo/blow through carb
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mrshin | Fri, 23 January 2004 13:15 |
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Re: Turbo/blow through carb
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gold28 | Sat, 24 January 2004 09:05 |
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Re: Turbo/blow through carb
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Jayem | Sat, 24 January 2004 11:35 |
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Re: Turbo/blow through carb
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STR8 2.8 | Sat, 24 January 2004 12:18 |
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Re: Turbo/blow through carb
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mrshin | Sat, 24 January 2004 13:04 |
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Re: Turbo/blow through carb
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mrshin | Sun, 25 January 2004 13:10 |
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Re: Turbo/blow through carb
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Joshstix | Tue, 27 January 2004 04:12 |
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Re: Turbo/blow through carb
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Norbie | Sun, 25 January 2004 13:24 |
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Re: Turbo/blow through carb
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gold28 | Mon, 26 January 2004 10:31 |
