Max Boost on stock head?
03-13-2008, 03:24 PM
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Max Boost on stock head?
Alright quick question. Yeah right...no such thing.
Like i said above what is max boost on these trucks without new studs and head etc.
Why bvecause i just put on a boost elbow set it at 30psi but i dont want to blow my head.
Thanks Rob
Like i said above what is max boost on these trucks without new studs and head etc.
Why bvecause i just put on a boost elbow set it at 30psi but i dont want to blow my head.
Thanks Rob
03-13-2008, 04:06 PM
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A stock head can handle up to 50 psi. But your HX35 (or is it a HY??) turbo loses it effeciency over 35 psi. So 40-45 psi really does nothing for you. I'd set your wastegate for 35 psi.
03-13-2008, 04:33 PM
#7
The stock HX35 really starts to drop off at about 28psi. That is the peak of its efficiency. We have run trucks to 45psi with no problems to the gasket. Anything past that and you run the risk.
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03-13-2008, 04:39 PM
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Thanks i knew about the turbo 35psi mark just was a little worried about blowing the gasket or damaging other things* Thanks ROb
03-13-2008, 05:24 PM
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Drive pressure is the bigger issue anyway.
But the HX35 seems to do ok up to around 35 psi as stated.
I would keep winter boost below 40psi and summer boost below 45 psi.
It's all about air density.
Dave
But the HX35 seems to do ok up to around 35 psi as stated.
I would keep winter boost below 40psi and summer boost below 45 psi.
It's all about air density.
Dave
03-13-2008, 06:15 PM
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i noticed with the Adrenaline on pl2 my boost sits at 8psi at 70, that should be ok right, i heard to keep it under 10psi(sorry about the hijacking of the thread)
03-13-2008, 06:19 PM
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Why do you need to keep it under 10psi??? I would think boost is relative to speed, rpm and amount of throttle. So why would 10 psi be the magic number for cruising?
03-13-2008, 06:40 PM
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The higher the drive, the harder it is to get the air out of the cylinder. I don't know why 10psi would be the magic number. But generally, high boost at cruise is wasted energy.
Dave
03-13-2008, 06:59 PM
#14
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but only on a handful of occasions, and not for very long. I drive with (for now) a completely stock head and so far have not had many problems... most my truck has seen since the last time it was dynoed is about 45 psi at about 1/2 throttle with dragonfly injectors and stock DVS....
Rick
