Results in! 4.8L w/ Magnum 76 Exhaust Pressure Test
#11
What is the exhaust A/R on this turbo. I'm scared to see what the BP is going to be on my PT88 with the .96 ar. I am sure its gonna be as bad if not worse. This is a great write up by the way thanks.
#14
TECH Apprentice
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Well that dose help to explane the "law of deminninshing returns" To some.... It's truly a hard concept to grasp.
But I have to say I dont think you have enough air fresheners.
But I have to say I dont think you have enough air fresheners.
#16
Slowest turbo build ever!
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Well knowing that, I guess it is safe to say that these turbos are OK. Definitely not GREAT. Atleast they are good for anyone who isnt wanting to run a great amount of boost pressure. Like you said, seems the magical number with these will be no more than 14-18psi depending on exact engine setup.
Great info and thanks for taking the time to do it for everyone's benefit
Great info and thanks for taking the time to do it for everyone's benefit
#20
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I was gonna ask the same question.
Edit: i see that's a pic of the crossover tube.
What about just before the T4 flange?
Don't forget, you're also trying to push all that pressure from one side of the engine to the other, then thru just one log.
The old GN's were this way, there is an upgrade for those cars; it allows both sides to transition into a y pipe design, merging just before or at the T4 flange; which helps lower back pressure.
Edit: i see that's a pic of the crossover tube.
What about just before the T4 flange?
Don't forget, you're also trying to push all that pressure from one side of the engine to the other, then thru just one log.
The old GN's were this way, there is an upgrade for those cars; it allows both sides to transition into a y pipe design, merging just before or at the T4 flange; which helps lower back pressure.
Last edited by FarmTruc; 09-28-2012 at 05:25 PM.