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Post by cooledmu on Jan 9, 2008 22:33:09 GMT 11
fire me your email address guys and ill send you some pics. i havent changed the spring yet, ill probably go down to a 7psi spring or a 10psi
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tealz
Isuzu Baby
Posts: 48
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Post by tealz on Jan 10, 2008 5:00:09 GMT 11
tealz83@yahoo.co.nz
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Post by dasnoboarder on Jan 10, 2008 7:02:58 GMT 11
Could you add dasnoboarder@hotmail.com to that too please?  |
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quack
Isuzu Senior
Posts: 220
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Post by quack on Jan 10, 2008 10:20:47 GMT 11
ben_dobson9@hotmail.com thanks
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Post by cooledmu on Jan 13, 2008 10:37:03 GMT 11
anyone got a description or pic of where that overboost valve is. Is it on the plenum?
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quack
Isuzu Senior
Posts: 220
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Post by quack on Jan 13, 2008 12:29:41 GMT 11
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quack
Isuzu Senior
Posts: 220
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Post by quack on Jan 13, 2008 12:31:47 GMT 11
damm its to small, it says: its just behind the intake, if i remember its a small alloy cylinder that sticks out, i just put a alloy plate over it.
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Post by cooledmu on Jan 13, 2008 21:32:31 GMT 11
does it unscrew or something? or do i have to weld a cover on it? Just out of interest quack how much boost do you run? Im going to remove the overboost valve first before i down rate my wastegate spring. Do you know what boost value the valve opens at.
Im thinking that if my wategate is rated at 14.5psi but the valve is less that that then the valve is going to open before the gate does anyway and thats why its not working as it should.
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quack
Isuzu Senior
Posts: 220
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Post by quack on Jan 14, 2008 15:21:02 GMT 11
it bolts on this 2 bolts on each side, i think i remember reading somewere that it opens at 16psi. i took it out as i didnt want anyting releasing out of there.
ive just got a dodgey bleed tap on mine so it runs between 12-14 but stays at 14 most the time. wouldnt mind going up to 15-16psi, but i think im pushing it now with the standard exhaust.
do u have a boost gauge yet? i would put one of these on before you go changing springs.
so you think ull be able to plumb it back into the exhaust were its mounted? have you gone for a wof with it yet?
being a 4x4 u could probaly just get it covered in mud and they probly wouldnt know it was there.
if you email me the pics i can put them up for u:)
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Post by cooledmu on Jan 16, 2008 20:10:29 GMT 11
did you get my email quack?
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tealz
Isuzu Baby
Posts: 48
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Post by tealz on Jan 17, 2008 4:32:59 GMT 11
Anychance you could send me some photos mate.
Email is tealz83@yahoo.co.nz
Thanks.
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Post by cooledmu on Jan 29, 2008 17:02:00 GMT 11
well i ran it all the way from auckland, over the coromandle ranges and to matarangi beach in the weekend, highest boost reading was 17psi, that was up hill and acelerating. Its pretty quick from about 70kmh to 125kmh and feels like the engine would have alot more but they wernt exactly made for speed so i didnt push any futher. Its got no boost control at all because the gate still stays shut, and i have removed the over boost valve, it seemed fine, didnt over heat, oil pressure was good.
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roga
Isuzu Junior
Posts: 58
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Post by roga on Jan 29, 2008 19:03:32 GMT 11
Is that in the exhaust manifold ??
Surly you would put it in the intake somewhere?
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Post by geeves on Jan 29, 2008 19:33:10 GMT 11
Wastegate's job is to monitor intake pressure and then adjust this by allowing exhaust gas to bypass the turbo. You will see a flange on the side of the wastegate between the adapter pipe and the diapham unit that should reconnect to the exhaust below the turbo.
Blow off valves control pressure by venting intake air which can be vented back into the intake which is how most factory setups are done or vented to air to get that nice shshstssh sound that boy racers love
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Post by cooledmu on Feb 10, 2008 11:32:19 GMT 11
exactly so i pretty much have it in the right place. A better position would have been on the part of the manifold that the turbo sits on but theres just no room, it seem ok at the moment not haveing any boost control, my boost control is my right foot, works for me
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