Turbo A/r Info Difference
#1
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Turbo A/r Info Difference
Hey guys i done a seach but nothing i wanted to know was in there.
I want to know if you run a turbo say t04 with a rear housing with a .96 a/r and then u run a bigger turbo say a t88 with a .96 a/r rear housing will they both spool at the same time or not as the a/r is the same but one turbo is twice the size?
cheers guys
I want to know if you run a turbo say t04 with a rear housing with a .96 a/r and then u run a bigger turbo say a t88 with a .96 a/r rear housing will they both spool at the same time or not as the a/r is the same but one turbo is twice the size?
cheers guys
#2
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No the larger turbo will spool slower simply because of the larger mass of the compressor wheel....... actually the hot side will be bigger in your example as well.
#3
Tango Down
iTrader: (3)
You could go on garretts website and pull up maps for both turbos and compare them or contact forced performance. ANY time i've had a turbo related question, they've always been able to give me a quick answer and point me in the right direction.
Ranzo answered what i was trying to but for future reference, i'd thought i'd share a bit.
Ranzo answered what i was trying to but for future reference, i'd thought i'd share a bit.
#4
Who Shot the Sheriff?
iTrader: (2)
Smaller AR = quicker spool, more restrictive exhaust flow, higher EGT's, higher exhaust pressure, more cross flow if you have a port with overlap. Can cause boost to drop off in higher rpms.
Smaller AR = slower spool, less restrictive exhaust flow, lower EGT's, lower exhaust pressure, less cross flow.
You need to find a balance between spool and top end.
Smaller AR = slower spool, less restrictive exhaust flow, lower EGT's, lower exhaust pressure, less cross flow.
You need to find a balance between spool and top end.
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