CFM chart
11-22-2002, 08:25 AM
#1
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CFM chart
I started this thread on the other site before Alex opend this one and I thought we would like it over here also.
all information has been provided by hotrod.
Stock Turbo
360CFM at 14.7PSI
IHI VF-22
435CFM at 18.0PSI
Small 16G
505CFM at 14.7PSI
Large 16G
550CFM at 14.7PSI
20G
650CFM at 14.7PSI
AVO 450HP
630CFM at 20.0PSI
AVO 500HP
740CFM at 23.0PSI
This is flow at 14.7 PSI
Stock Turbo 360 CFM at 14.7 PSI
T3 60 trim 400 CFM at 14.7 PSI
IHI VF 23/24 423 CFM at 14.7 PSI
STOCK HYBRID 430 CFM at 14.7 PSI
IHI VF-22 435 CFM at 14.7 PSI
SR 30 435 CFM at 14.7 PSI
T04E 40 trim 460 CFM at 14.7 PSI
Small 16G 505 CFM at 14.7 PSI
Large 16G 550 CFM at 14.7 PSI
SR 40 595 CFM at 14.7 PSI
18G 600 CFM at 14.7 PSI
PE 1820 630 CFM at 14.7 PSI
20G 650 CFM at 14.7 PSI
SR 50 710 CFM at 14.7 PSI
GT-30 725 CFM at 14.7 PSI
60-1 725 CFM at 14.7 PSI
GT-35R 820 CFM at 14.7 PSI
T72 920 CFM at 14.7 PSI <-- Note you would have to spin a 2.0 L engine at about 14,000 rpm to flow this much air.
This flow is at higher PSI's
IHI VF 23/24 388 CFM at 18 PSI
T3 60 trim 410 CFM at 20 PSI
IHI VF-22 460 CFM at 18.0 PSI
AVO 320HP 465 CFM at 17.5 PSI
T04E 40 trim 465 CFM at 22 PSI
Large 16G 520 CFM at 22 PSI
SR 30 490 CFM at 22 PSI
Small 16G 490 CFM at 22 PSI
AVO 400HP 580 CFM at 17.5 PSI
PE 1820 600 CFM at 22 PSI
AVO 450HP 650 CFM at 20.0 PSI
20G 695 CFM at 20.0 PSI <-- added
AVO 500HP 725 CFM at 23.0 PSI
SR 50 770 CFM at 22 PSI
GT-30 790 CFM at 22 PSI
60-1 800 CFM at 22 PSI
GT-35R 880 CFM at 22 PSI
T72 1000 CFM at 22 PSI <-- note you would have to run a 2.0 L engine at >40 PSI boost to flow this much air
HKS GT2835 Turbo about 400 hp approx 580 CFM, pressure not specified
HKS GT3037 Turbo about 460 hp approx 670 CFM, pressure not specified
HKS GT3040 Turbo about 490 hp approx 710 CFM, pressure not specified
HKS GT3240 Turbo about 570 hp approx 830 CFM, pressure not specified
Conversions used where I had control over conversion factors:
1 HP approx equals 1.45 CFM
1 CFM approx equals 0.0745 lb of air/min
0.108 Lb/min approx equals 1 hp
1 Meter cubed/sec = 35.314 CFS = 2118.867 CFM
1 KG/sec = 132 lbs/min approx equals 1771.812 CFM
power coversions:
1 PS = 0.9859 HP
1.3405 HP = 1 KW
1 HP = 746 watts
all information has been provided by hotrod.
Stock Turbo
360CFM at 14.7PSI
IHI VF-22
435CFM at 18.0PSI
Small 16G
505CFM at 14.7PSI
Large 16G
550CFM at 14.7PSI
20G
650CFM at 14.7PSI
AVO 450HP
630CFM at 20.0PSI
AVO 500HP
740CFM at 23.0PSI
This is flow at 14.7 PSI
Stock Turbo 360 CFM at 14.7 PSI
T3 60 trim 400 CFM at 14.7 PSI
IHI VF 23/24 423 CFM at 14.7 PSI
STOCK HYBRID 430 CFM at 14.7 PSI
IHI VF-22 435 CFM at 14.7 PSI
SR 30 435 CFM at 14.7 PSI
T04E 40 trim 460 CFM at 14.7 PSI
Small 16G 505 CFM at 14.7 PSI
Large 16G 550 CFM at 14.7 PSI
SR 40 595 CFM at 14.7 PSI
18G 600 CFM at 14.7 PSI
PE 1820 630 CFM at 14.7 PSI
20G 650 CFM at 14.7 PSI
SR 50 710 CFM at 14.7 PSI
GT-30 725 CFM at 14.7 PSI
60-1 725 CFM at 14.7 PSI
GT-35R 820 CFM at 14.7 PSI
T72 920 CFM at 14.7 PSI <-- Note you would have to spin a 2.0 L engine at about 14,000 rpm to flow this much air.
This flow is at higher PSI's
IHI VF 23/24 388 CFM at 18 PSI
T3 60 trim 410 CFM at 20 PSI
IHI VF-22 460 CFM at 18.0 PSI
AVO 320HP 465 CFM at 17.5 PSI
T04E 40 trim 465 CFM at 22 PSI
Large 16G 520 CFM at 22 PSI
SR 30 490 CFM at 22 PSI
Small 16G 490 CFM at 22 PSI
AVO 400HP 580 CFM at 17.5 PSI
PE 1820 600 CFM at 22 PSI
AVO 450HP 650 CFM at 20.0 PSI
20G 695 CFM at 20.0 PSI <-- added
AVO 500HP 725 CFM at 23.0 PSI
SR 50 770 CFM at 22 PSI
GT-30 790 CFM at 22 PSI
60-1 800 CFM at 22 PSI
GT-35R 880 CFM at 22 PSI
T72 1000 CFM at 22 PSI <-- note you would have to run a 2.0 L engine at >40 PSI boost to flow this much air
HKS GT2835 Turbo about 400 hp approx 580 CFM, pressure not specified
HKS GT3037 Turbo about 460 hp approx 670 CFM, pressure not specified
HKS GT3040 Turbo about 490 hp approx 710 CFM, pressure not specified
HKS GT3240 Turbo about 570 hp approx 830 CFM, pressure not specified
Conversions used where I had control over conversion factors:
1 HP approx equals 1.45 CFM
1 CFM approx equals 0.0745 lb of air/min
0.108 Lb/min approx equals 1 hp
1 Meter cubed/sec = 35.314 CFS = 2118.867 CFM
1 KG/sec = 132 lbs/min approx equals 1771.812 CFM
power coversions:
1 PS = 0.9859 HP
1.3405 HP = 1 KW
1 HP = 746 watts
Last edited by scottm1978; 11-23-2002 at 08:29 AM.
11-22-2002, 05:46 PM
#5
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Join Date: Nov 2002
Location: colorado
Posts: 79
credit for work
scottm1978:
Umm if your going to just cut and paste someone elses contribution to your NASOC thread,
http://forums.nasioc.com/forums/show...hreadid=278517
You should at least include credit for their effort.
Larry
Umm if your going to just cut and paste someone elses contribution to your NASOC thread,
http://forums.nasioc.com/forums/show...hreadid=278517
You should at least include credit for their effort.
Larry
Last edited by hotrod; 11-22-2002 at 05:53 PM.
11-22-2002, 06:05 PM
#6
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Join Date: Nov 2002
Location: colorado
Posts: 79
Higher PSI values
Phast:
I was just curious where the "max boost" figures came from. The 20G is well known in DSM land, which I'm sure you are familiar with. I know it's efficient well past 20psi. Maybe 23-24 easy.. and sometimes even 25psi.
You're absolutely correct that many of those turbo's will reach higher boost levels. When I put together that portion of my list, I tried to standardize on a pressure ratio of 2.5 for the high boost value. In some cases the source did not list values that went that high. In some cases the compressor map could support higher pressure ratios at moderate flow rates but fell on its face at higher flow rates.
In the case of the 20G
http://www.stealth316.com/images/td06h-20g-cfm.gif
it achieves max CFM flow at 20 psi, but is capable at slightly lower flow rates of 26 PSI.
Larry
I was just curious where the "max boost" figures came from. The 20G is well known in DSM land, which I'm sure you are familiar with. I know it's efficient well past 20psi. Maybe 23-24 easy.. and sometimes even 25psi.
In the case of the 20G
http://www.stealth316.com/images/td06h-20g-cfm.gif
it achieves max CFM flow at 20 psi, but is capable at slightly lower flow rates of 26 PSI.
Larry
Last edited by hotrod; 11-22-2002 at 06:11 PM.
11-22-2002, 06:53 PM
#7
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I am very sorry for that. I was in a hurry and wanted to get it posted.
by no means would I claim that to be mine since I am just learning about this stuff.
I will change the post to give you credit. Sorry hotrod
by no means would I claim that to be mine since I am just learning about this stuff.
I will change the post to give you credit. Sorry hotrod
Last edited by scottm1978; 11-22-2002 at 07:12 PM.
11-22-2002, 11:39 PM
#8
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Join Date: Nov 2002
Location: colorado
Posts: 79
Just another little note
Thanks Scottm1978 -- no harm no foul.
Just a note to everyone I just decided to change my rating of the 16G large on the other page. In answering Phast I found some things didn't quite add up right.
I went back and after scratching my head for a while decided I must have miss-read my hard copy print out of the 16G large compressor map, when I put the first draft of the list together. I have decided to up grade its flow at 22 psi to about 520 CFM instead of my orginal 470.
It will heat the air discharge more than the 16G small due to its lower compressor effeciency, so the density of the air discharged will only be about 96% of the 16G small at the same pressure.
Like I posted on the other post this is a work in progress, and I'm sure I will change other values as I evolve a consistant way of evaluating the numbers.
Larry
Just a note to everyone I just decided to change my rating of the 16G large on the other page. In answering Phast I found some things didn't quite add up right.
I went back and after scratching my head for a while decided I must have miss-read my hard copy print out of the 16G large compressor map, when I put the first draft of the list together. I have decided to up grade its flow at 22 psi to about 520 CFM instead of my orginal 470.
It will heat the air discharge more than the 16G small due to its lower compressor effeciency, so the density of the air discharged will only be about 96% of the 16G small at the same pressure.
Like I posted on the other post this is a work in progress, and I'm sure I will change other values as I evolve a consistant way of evaluating the numbers.
Larry
11-25-2002, 11:53 AM
#11
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Corrections
You have the same flow for the VF22 at 14 and 18 psi. From the other thread... The PE1820 is rated at 695CFM via the Compressor map From PE. It is rated at 450ps at 1.4 kg/cm2 of boost. You have it flowing 630 at 14.7 and 600(lower) at 22 psi. Via the compressor map the sweet spot is 18-24 psi.
P.S.. Boy this is getting confusing with Two Iclub's..... I wish I new the story behind this so I could just limit myself to one forum.
HTH
CT
P.S.. Boy this is getting confusing with Two Iclub's..... I wish I new the story behind this so I could just limit myself to one forum.
HTH
CT
11-25-2002, 12:47 PM
#12
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Re: Corrections
Originally posted by azscoobie
You have the same flow for the VF22 at 14 and 18 psi. From the other thread... The PE1820 is rated at 695CFM via the Compressor map From PE. It is rated at 450ps at 1.4 kg/cm2 of boost. You have it flowing 630 at 14.7 and 600(lower) at 22 psi. Via the compressor map the sweet spot is 18-24 psi.
P.S.. Boy this is getting confusing with Two Iclub's..... I wish I new the story behind this so I could just limit myself to one forum.
HTH
CT
You have the same flow for the VF22 at 14 and 18 psi. From the other thread... The PE1820 is rated at 695CFM via the Compressor map From PE. It is rated at 450ps at 1.4 kg/cm2 of boost. You have it flowing 630 at 14.7 and 600(lower) at 22 psi. Via the compressor map the sweet spot is 18-24 psi.
P.S.. Boy this is getting confusing with Two Iclub's..... I wish I new the story behind this so I could just limit myself to one forum.
HTH
CT
you lost me can you let me know what nubers need changed to what.
11-25-2002, 01:47 PM
#13
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Join Date: Nov 2002
Location: colorado
Posts: 79
could you check your compressor map
AZScoobie:
Could you do me a favor and compare your compressor map to the one I referenced in the other thread that was posted by sherifx.
http://forums.nasioc.com/forums/show...ompressor+maps
As he has it dimensioned at the bottom the far right edge of the map ends at 17.5 Meters cubed/min or 618 CFM. I suspect when he penciled in the indexes at the bottom they were about 2 divisions off, or he actually has a map for an 1818.
That is why I didn't take my numbers on that thread all the way up to your recommendation of 695 --- it just doesn't exist on that map. The 600 value for 22 psi represents where the max rpm line and the flow lines end at about 16.8 Meters cubed/min at PR 2.5 or 593 cfm. So that map and your map just can't be the same.
Current values in the other thread:
To maintain my sanity ( like you said multiple boards are confusing) I'll try to keep that thread corrected as I learn new info.
Scott1978 ---- since your first post is at the top of this thread why don't you just periodically import (Cut&paste) the master list on the other side to your post so the most current info sits at the top of this thread also? Just put a last updated line in it.
By the way scott1978 -- if you surround the number block with the flags for {code] {/code] (replace the front brace with a square bracket to make them work) you can preserve spaces.
Larry
Could you do me a favor and compare your compressor map to the one I referenced in the other thread that was posted by sherifx.
http://forums.nasioc.com/forums/show...ompressor+maps
As he has it dimensioned at the bottom the far right edge of the map ends at 17.5 Meters cubed/min or 618 CFM. I suspect when he penciled in the indexes at the bottom they were about 2 divisions off, or he actually has a map for an 1818.
That is why I didn't take my numbers on that thread all the way up to your recommendation of 695 --- it just doesn't exist on that map. The 600 value for 22 psi represents where the max rpm line and the flow lines end at about 16.8 Meters cubed/min at PR 2.5 or 593 cfm. So that map and your map just can't be the same.
Current values in the other thread:
Code:
Stock Turbo 360 CFM at 14.7 PSI
T3 60 trim 400 CFM at 14.7 PSI
IHI VF 23/24 423 CFM at 14.7 PSI
STOCK HYBRID 430 CFM at 14.7 PSI
IHI VF-22 435 CFM at 14.7 PSI
SR 30 435 CFM at 14.7 PSI
T04E 40 trim 460 CFM at 14.7 PSI
Small 16G 505 CFM at 14.7 PSI
Large 16G 550 CFM at 14.7 PSI
SR 40 595 CFM at 14.7 PSI
18G 600 CFM at 14.7 PSI
PE 1820 630 CFM at 14.7 PSI
20G 650 CFM at 14.7 PSI
SR 50 710 CFM at 14.7 PSI
GT-30 725 CFM at 14.7 PSI
60-1 725 CFM at 14.7 PSI
GT-35R 820 CFM at 14.7 PSI
T72 920 CFM at 14.7 PSI <-- Note you would have to spin a 2.0 L
engine at about 14,000 rpm to flow this much air.
IHI VF 23/24 388 CFM at 18 PSI
T3 60 trim 410 CFM at 20 PSI
IHI VF-22 460 CFM at 18.0 PSI
AVO 320HP 465 CFM at 17.5 PSI
T04E 40 trim 465 CFM at 22 PSI
SR 30 490 CFM at 22 PSI
Small 16G 490 CFM at 22 PSI
Large 16G 520 CFM at 22 PSI <-- upgraded flow some on review of compressor map
AVO 400HP 580 CFM at 17.5 PSI
PE 1820 600 CFM at 22 PSI
AVO 450HP 650 CFM at 20.0 PSI
SR 40 650 CFM at 22 PSI <--- added, got lost some how in editing
20G 695 CFM at 20.0 PSI <-- added
AVO 500HP 725 CFM at 23.0 PSI
SR 50 770 CFM at 22 PSI
GT-30 790 CFM at 22 PSI
60-1 800 CFM at 22 PSI
GT-35R 880 CFM at 22 PSI
T72 1000 CFM at 22 PSI <-- note you would have to run a 2.0 L engine
at >40 PSI boost to flow this much air
HKS GT2835 Turbo about 400 hp approx 580 CFM, pressure not specified
HKS GT3037 Turbo about 460 hp approx 670 CFM, pressure not specified
HKS GT3040 Turbo about 490 hp approx 710 CFM, pressure not specified
HKS GT3240 Turbo about 570 hp approx 830 CFM, pressure not specified
Scott1978 ---- since your first post is at the top of this thread why don't you just periodically import (Cut&paste) the master list on the other side to your post so the most current info sits at the top of this thread also? Just put a last updated line in it.
By the way scott1978 -- if you surround the number block with the flags for {code] {/code] (replace the front brace with a square bracket to make them work) you can preserve spaces.
Larry
Last edited by hotrod; 11-25-2002 at 02:25 PM.
11-27-2002, 12:27 PM
#15
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Location: colorado
Posts: 79
Haven't got a map for the 18G
I haven't been able to find a map for the 18G, so have no numbers above the basic. It should fall between the 16G and 20G, or just over 600 CFM, but would love to find someone who has a compressor map or knows where to find one. A lot of these turbos are right on the far right edge of the compressor maps at pressure ratios around 2.4 - 2.6 and do not flow significantly more max flow at higher pressures. If that is the case if the turbo will not supply enough air for the engine at pressure ratio 2:1 then you will gain nothing by upping the pressure.
If it is comfortably below what the engine needs at 2:1 then it will improve hp output to bump the pressure up some.
Larry
If it is comfortably below what the engine needs at 2:1 then it will improve hp output to bump the pressure up some.
Larry
