non vgt number meanings - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 01-11-2012, 06:04 PM Thread Starter
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non vgt number meanings

just for example: a 64/65/70 To my understanding the middle number can be 65, 68, 71, and so on?

The 64 is the compressor wheel inducer? I'm asking.
The 65 is the turbine wheel exducer? I'm asking.
and the 70 is what? Is it the turbine housing or turbine wheel inducer? I see it is also 80 on some turbos.

Need to learn up. Thank you.

2003 centennial edition f250 4x4 ccsb auto w/blackwater long block w/arp's, 4" exhaust, airaid intake, ODawg's manifold, itp's reg return, sap modified solenoid, DC power 185amp alt, motorcraft 850cca, Warn Hubs, RS 55w 6k hid's, harley headlights, bpd 58v 6 phase, bpd water pump, dieselsite coolant filter, elc coolant, php gryphon, Xcal2 w/unlimited tow, new hfcm, glowshift fuel psi gauge, icon level kit, 20" kmc hoss, 305/55 terra grapplers TOTALED
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post #2 of 16 Old 01-11-2012, 06:17 PM
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you have it pretty much right

a 64/71/70 is a turbo with a 64mm inducer on the compressor, 71mm turbine exducer and a .70 a/r

these wheels all have MANY different variations

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post #3 of 16 Old 01-11-2012, 06:17 PM
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I know the first number is in reference to the compressor wheel size of either the inducer or exducer. Not sure really which one.

The second number is in reference to the turbine wheel size and again either inducer or exducer. Not sure which one but is the turbine wheel.

The third number I believe should really be like .70, .80, .91, 1.10, etc. and it refers to the A/R ratio. Meaning how open or tight a turbine housing is I believe.

I need to get a little smarter on this as well but stuff gets confusing with all of the different numbers then throw in t3, t4, open vs divided. Makes the head hurt. FYI those are types of flanges for the exhaust housings. Hope this helps more than it hurts.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
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post #4 of 16 Old 01-11-2012, 06:24 PM Thread Starter
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I taught myself something! Thanks for the responses and I used search wildrunner!! lol I was thinking that the last number should have a . in front of it so I was close. searched and found this to find out was a/r is. Could be some good info in there. Turbo Introduction

2003 centennial edition f250 4x4 ccsb auto w/blackwater long block w/arp's, 4" exhaust, airaid intake, ODawg's manifold, itp's reg return, sap modified solenoid, DC power 185amp alt, motorcraft 850cca, Warn Hubs, RS 55w 6k hid's, harley headlights, bpd 58v 6 phase, bpd water pump, dieselsite coolant filter, elc coolant, php gryphon, Xcal2 w/unlimited tow, new hfcm, glowshift fuel psi gauge, icon level kit, 20" kmc hoss, 305/55 terra grapplers TOTALED
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post #5 of 16 Old 01-11-2012, 06:26 PM Thread Starter
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A/R is a ratio of the exhaust discharge area vs the distance from the center of turbine wheel to the center of the cross sectional area. Smaller A/R housing has faster spool up. Bigger A/R housing has less back pressure, more flow for the top end.

this is what i found in that link regarding a/r ratio. But what does the A stand for and what does the R stand for. T hanks. ....wait it's an equation and R is distance or something? and A is obviously area?

2003 centennial edition f250 4x4 ccsb auto w/blackwater long block w/arp's, 4" exhaust, airaid intake, ODawg's manifold, itp's reg return, sap modified solenoid, DC power 185amp alt, motorcraft 850cca, Warn Hubs, RS 55w 6k hid's, harley headlights, bpd 58v 6 phase, bpd water pump, dieselsite coolant filter, elc coolant, php gryphon, Xcal2 w/unlimited tow, new hfcm, glowshift fuel psi gauge, icon level kit, 20" kmc hoss, 305/55 terra grapplers TOTALED
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post #6 of 16 Old 01-11-2012, 06:31 PM
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Makes sense to me. I know for our trucks we need a smaller housing size to get a non-VGT to light. They still out flow VGTs up top all day long.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
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KC TUROS - Not just a modified Powermax...

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post #7 of 16 Old 01-11-2012, 06:40 PM
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area/radius

its a ratio of volumetric air flow... the larger the housing the more air it flows, but only when pair with the right turbine wheel and compressor wheel. obviously
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post #8 of 16 Old 01-11-2012, 06:45 PM
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So what would be a good NON VGT for 190/100s, for spool up and big enough to clean them up?

Sorry didn't mean to hijack your thread..

2011 6.7 F350 - Dads
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post #9 of 16 Old 01-11-2012, 06:58 PM
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What do you want to do with the truck?? If you plan to tow much at all, then you are going be looking at a 62/65/.70. It might not clean 190/100s up all the way but would spool stock like fast and flow more than a powermax.

No or very light towing probably a 64 or 66.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
BULLET PROOF DIESEL 1-888-967-6653
KC TUROS - Not just a modified Powermax...

WINDRUNNER PERFORMANCE ENGINEERING
WWW.WPEDIESEL.COM

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post #10 of 16 Old 01-11-2012, 07:02 PM
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I tow sometimes with my truck, I have a VGT-SSX from elite but if it ever blows I'm going to go to a non vgt.

2011 6.7 F350 - Dads
2009 6.4 F350 - Brothers
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