Analyzing TDO5-18G greddy turbos on a built motor
#22
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UGH !!!!!!!!!! gurgen i just finished working on the flow chart and noticed when i was converting bar into psi that the PE compressor chart starts off at 1.2 bar instead of 1 bar like everyother compressor chart!!!!
so now all my hard work is ruined!!! ill have to fix it tomorrow but i have to say that these turbos look to be very well chosen for the VQ motor and look like they will support a max of 18 psi @ 7000 rpm which should develop a very healthy 550 + whp on a lower compression built motor i would guess.
Any way i have to redo the entire chart ill post it up tomorrow...sorry shoulda looked more closely!
so now all my hard work is ruined!!! ill have to fix it tomorrow but i have to say that these turbos look to be very well chosen for the VQ motor and look like they will support a max of 18 psi @ 7000 rpm which should develop a very healthy 550 + whp on a lower compression built motor i would guess.
Any way i have to redo the entire chart ill post it up tomorrow...sorry shoulda looked more closely!
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Originally posted by gurgenpb01
hey
actually i am working on a version myself... but running into some problems. Not sure how that x-axis is scaled (m^3 times 3?) B/c if it straight, soemthing is wrong with my excele chart. Too tired... looking forward to yours.
hey
actually i am working on a version myself... but running into some problems. Not sure how that x-axis is scaled (m^3 times 3?) B/c if it straight, soemthing is wrong with my excele chart. Too tired... looking forward to yours.
so 6 cm3 per min = 211.88 cfm. (6 on the bottom of the chart)
#25
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Originally posted by SQUILL
take x cm3 per min (cubic meters per minute) x 35.31467 to get cfm or cubic feet per minute
so 6 cm3 per min = 211.88 cfm. (6 on the bottom of the chart)
take x cm3 per min (cubic meters per minute) x 35.31467 to get cfm or cubic feet per minute
so 6 cm3 per min = 211.88 cfm. (6 on the bottom of the chart)
Last edited by GurgenPB; 07-29-2004 at 05:53 AM.
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Originally posted by gurgenpb01
Here is what I am getting. Something is wrong
Here is what I am getting. Something is wrong
hee hee im sure thhats what happened!
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Originally posted by Juztin
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
#32
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Originally posted by SQUILL
gurgen you have the right idea however assuming your plots are correct ( cfm demand starting at 1.2 bar and them cfm at 2.4 bar would be easiest to plot your points) you must divide your plots by 2 as there are two turbos!
hee hee im sure thhats what happened!
gurgen you have the right idea however assuming your plots are correct ( cfm demand starting at 1.2 bar and them cfm at 2.4 bar would be easiest to plot your points) you must divide your plots by 2 as there are two turbos!
hee hee im sure thhats what happened!
ahhhh. doh!
#33
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Hey Guys
Here is my version. I also added some curves to give you an idea of the spool up that I see in my car wth these turbos.
G
EDIT: Actually, I am a little unsure of the spool up time in 1st gear - but that represents the worst case scenario. I'd almost bet that the spool up begins a little earlier, but again, not sre. Will double check when i get the car back
Here is my version. I also added some curves to give you an idea of the spool up that I see in my car wth these turbos.
G
EDIT: Actually, I am a little unsure of the spool up time in 1st gear - but that represents the worst case scenario. I'd almost bet that the spool up begins a little earlier, but again, not sre. Will double check when i get the car back
Last edited by GurgenPB; 07-29-2004 at 12:41 PM.
#34
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Originally posted by Juztin
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
1.2 bar = 3 psi
1.4 bar = 6 psi
1.6 bar = 9 psi
1.8 bar = 12 psi
2.0 bar = 15 psi
on any compressor chart 1 bar = normal atmospheric pressure so 1 bar on the chart = N/A
2 bar on any compressor chart = 1 bar of normal atmospheric pressure plus 1 bar of positive boost pressure or 2 total atmospheres which equals 1 bar of positive boost pressure or 15 psi roughly of positive boost pressure
#36
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Originally posted by Juztin
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
Have a look at the vortec compressor map that i did.
you can see that a single turbo needs to be able to produce 800 to 900 cfm for the 3.5 l VQ.
ill look for a turbo that might be a good fit .
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Originally posted by Juztin
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
Request for Squill :
Can you possibly due a map for a TD-06, and GT35 (I'm considering doing a single turbo)
--j2
not only does it look good for lower boost pressures but how about 27 psi @ 7000 rpm on a built motor in the future!!
#39
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the turbonetics one for their single is actually a 60 trim opposed to the gt42 56 trim you showed. could you post up a chart of that one i believe they have maps on their site.
thx in advance.
thx in advance.
#40
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Wow that GT42 looks like a good candidate . Ball bearing ooohhh. Only thing is that sucker is 2g's! Ouch lol. Looks like at even ~7psi it'd be flowing as much as 500cfm albeit with not great effeciency correct? There's nothing smaller that could really flow enough air to support say ~400 wheel at a max of ~9psi? hmmm
Last edited by Juztin; 07-30-2004 at 02:31 PM.