turbo question not F150 specific
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From: OH
turbo question not F150 specific
buddy of mine had a freebie...he wasn't using it. Figured I would be at some point in the year to come. Here are specs and then I'll post my questions:
Garrett(airsearch) turbo.
exhaust hausing states A/R .63
I took the intake housing off and measured the larger area of the wheel and the small area of the wheel to determine the Trim...
2.5inches large (converted inches to mm)
1.5inches small (converter inches to mm)
So the trim ended up being like 36 if my math was right.
So having a A/R of .63 but a smaller intake inlet would that basically have instant boost on anything v6 or v8?
I'm guessing its better for 4cylinder cars?
Came off of a cummins I was told.
It's in really good condtions so I hope to use it at some point. Or sell it I guess.
Garrett(airsearch) turbo.
exhaust hausing states A/R .63
I took the intake housing off and measured the larger area of the wheel and the small area of the wheel to determine the Trim...
2.5inches large (converted inches to mm)
1.5inches small (converter inches to mm)
So the trim ended up being like 36 if my math was right.
So having a A/R of .63 but a smaller intake inlet would that basically have instant boost on anything v6 or v8?
I'm guessing its better for 4cylinder cars?
Came off of a cummins I was told.
It's in really good condtions so I hope to use it at some point. Or sell it I guess.
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From: OH
I guess the A/R .63 is good for V8 or some V6. As for trim, from what I could find reading online isn't as important as the A/R. From what I gathered a Larger Trim has more lag.
What's the negative side to potentially running this on a V8 or V6?
Nothing getting enouph air in quicker?
I'm guessing it would have boost fairly quickly and is good for those with lower rpms vs higher reving engines.
What's the negative side to potentially running this on a V8 or V6?
Nothing getting enouph air in quicker?
I'm guessing it would have boost fairly quickly and is good for those with lower rpms vs higher reving engines.
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From: OH
Yes, a larger compressor will produce more lag. I used a T-67 ported shroud on my 4.6 and there was no lag. If it came off a Cummins, I would bet it is larger than what you need, but you can always drop a gear buy pushing the button and drop to 3rd or Mash the LOUD PEDAL and you will have full boost.
Generally, lag is more prevalent on the 4 bangers. Our V-8s make enough bottom end torque to eliminate any lag. The A/R on the turbos we have used have been .63-.81. The .81 makes loads of power. I ran a .81 on both the 4.6 and the 5.4. My 4.6 pulled all the way to redline... 478/542 was at 16 PSI.
If it came off a Power Stroke, then you are right. It would give you good bottom end and still pull up top. Remember the Power Stroke has a lower redline than the gas engines so it may not pull all the way through your powerband.
Generally, lag is more prevalent on the 4 bangers. Our V-8s make enough bottom end torque to eliminate any lag. The A/R on the turbos we have used have been .63-.81. The .81 makes loads of power. I ran a .81 on both the 4.6 and the 5.4. My 4.6 pulled all the way to redline... 478/542 was at 16 PSI.
If it came off a Power Stroke, then you are right. It would give you good bottom end and still pull up top. Remember the Power Stroke has a lower redline than the gas engines so it may not pull all the way through your powerband.
yea the A/R on it is .63, but I'm almost certain the inlet side is around a 36Trim. I guess being a cummins or powerstroke you need the boost to come in as early as possible. I guess having a smaller trim would make since. I'm not sure if it came off of a cummins truck or perhaps just something that uses a cummins engine.
What ever I decide to use this on, would be a v6 or V8. Unless anyone else chimes in, it should be ok to use it even with that low of a trim. I'd only be running right around 8psi.
Thanks again.
