how to read compressor maps?
10-23-2001, 08:27 AM
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how to read compressor maps?
So, how do you interpret these graphs? I know cfm matters, as well as spool time, but how can you figure any of this out from the graph?
tia,
-C
10-23-2001, 10:43 AM
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Re: how to read compressor maps?
try this website...
it'll give u what u need...
HTH
http://www.badbricks.com/main_files/faqs/turbo_size.htm
it'll give u what u need...
HTH
http://www.badbricks.com/main_files/faqs/turbo_size.htm
10-24-2001, 12:41 PM
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Re: how to read compressor maps? (Giuseppe)
sweet, I understand now.
so much so, i made an internet program to calculate CFM and PR for you:
http://velocity.websitegalaxy.com/cfm.html
so much so, i made an internet program to calculate CFM and PR for you:
http://velocity.websitegalaxy.com/cfm.html
10-24-2001, 12:50 PM
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Re: how to read compressor maps? (TypeC)
Uhm.. according to your calculations, my car will be boosting 10psi by 2000rpm. LOL! I wish.. Also, you have 10psi as 1.78 for PR.. that is wrong. It should be 1.68 whether you use 14.5 or 14.7 as atm pressure.
10-24-2001, 03:59 PM
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10-24-2001, 04:11 PM
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Re: how to read compressor maps? (TypeC)
Input your info and it will plot it automatically. You can compare between maps.....
http://www.turbofast.com.au/turbomap.html
http://www.turbofast.com.au/turbomap.html
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10-25-2001, 08:15 AM
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Re: how to read compressor maps? (Rob92SC)
Uhm.. according to your calculations, my car will be boosting 10psi by 2000rpm. LOL! I wish.. Also, you have 10psi as 1.78 for PR.. that is wrong. It should be 1.68 whether you use 14.5 or 14.7 as atm pressure.
I can't use the other one because my work computer doesn't use the JAVA.
-C
[Modified by TypeC, 11:34 AM 10/25/2001]
10-25-2001, 08:26 AM
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Re: how to read compressor maps? (TypeC)
what I meant about intercooler loss is:
PR= (boost+ATM)/ATM
I was told the intercooler loses ~1.5 psi so I did
PR= (boost+ATM+1.5)/ATM
where ATM=14.7 psi. If that 1.5psi addition is wrong, just DON'T check the box.
-C
PR= (boost+ATM)/ATM
I was told the intercooler loses ~1.5 psi so I did
PR= (boost+ATM+1.5)/ATM
where ATM=14.7 psi. If that 1.5psi addition is wrong, just DON'T check the box.
-C
10-25-2001, 08:48 AM
#10
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Re: how to read compressor maps? (TypeC)
Usung Turbofast's calculations, I was reccomended to go with a Garett T-25 for my D16 for 12psi, anybody know where these T-25's are found?
10-25-2001, 10:34 AM
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Re: how to read compressor maps? (VTC_CiViC)
I wouldn't go with those turbo calculations.. they have good programs for getting hp and flow maps.. but their "recommended turbo" program sucks. For your D16, get like a T04b/T3 S3 trim (big), T3 Super 60 (medium), T3 60 (medium), or a 16g.
10-25-2001, 12:54 PM
#12
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Re: how to read compressor maps? (Rob92SC)
Hmm I dunno, you don't find a T04 to be just a touch LARGE for a D16? Thanks for the 411 on turbofast's page though. I used their "Drag Racing" calculator and it was actually remarkably acurate with my last trip to the track, but I guess I'll take their reccomendations with a grain of salt heh 
10-25-2001, 01:33 PM
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Re: how to read compressor maps? (VTC_CiViC)
Just assuming that a T04 is large is not right. There are many different trim levels. The T04b/T3 S3 I mentioned is just a little larger than a T3-super 60. The same turbo is smaller than all the turbo's that DRAG and RevHard offer in their kits.. so yes it is small enough for the D16. Just make sure you get a .48 ehaust housing.
10-26-2001, 10:39 AM
#14
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Re: how to read compressor maps? (Rob92SC)
Ok, now this is gonna be the basic of basics.. I'm pretty familiar withthe Mitsu system of turbo's (TD's and their corresponding wheels sizes like m 15G), but I'm dead ignorant with Garett's/Turbonetics "T" turbo's. I mean I "kinda" understand a little, T25 is pretty small, T3 is a little larger, T4 etc.. but is there a good internet resource where I can kinda compare turbo sizes by their label? Oh and thanks for the info Rob
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