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Wastegate problems ?

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Old 11-27-2014, 08:29 AM
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Default Wastegate problems ?

I'm running the 39mm Precision gate. When I had the mp70 the 9lb spring gave me 13lb no creep worked like a charm and ran damn good. Sold the 70 to Jay and put the new on3 78/75 and a snow meth kit. With this turbo the 9lb spring gave me 20 psi thank god for meth LOL!! So I put in the 1lb spring and it gives me 15psi and spools slow as ****, 5 pound spring gives me 15psi and spools better. Is the gate just too small for this turbine?The gate is on the log below the turbine,not at the optimal angle.
Old 11-27-2014, 10:42 AM
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first thing first how are you running the hoses on the gate??
Old 11-27-2014, 12:34 PM
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Single line to bottom port on gate/top open. Seems that springs determine how fast the gate opens and when it's open it will only flow enough to keep me around 17-18 psi. I guess I will just run it on kill all the time...runs damn good on 20psi spun about 15 feet in 4hi on street tires lol!!!
Old 11-27-2014, 01:15 PM
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Make sure the plug didn't fall out on bottom side.

We have used a 39 gate on many builds.


You can add another gate. Or swap the gate to a 46mm.
Old 11-27-2014, 01:25 PM
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Yes, it sound like gate time. Rick your turn...
Old 11-27-2014, 01:34 PM
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What cam or other mods?
Old 11-27-2014, 09:05 PM
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212/220 blower cam with supporting mods.Gate is in the same spot as your first run of production cast stainless manifolds Rick. I really like 4wd launches and 20psi but I'm afraid she wont last to long at that level. I may add a gate to the crossover because it would be a pain in the *** to go bigger at the manifold.
Old 11-28-2014, 06:31 AM
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Do you have a pic if how the gate is set up?
Old 11-28-2014, 11:55 AM
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I have a gauge for that
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Dem 4wd launches doe
Old 11-28-2014, 05:29 PM
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Originally Posted by Atomic
Dem 4wd launches doe
Yep! its cool to lay a nice set of 11's on the road but double 11's even cooler.
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