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#1
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Turbo sizing discussion
I found this excellent turbo calculator here:
http://not2fast.wryday.com/turbo/glo...rbo_calc.shtml I plugged in the following numbers: Altitude 50 ASL Bore 96.9 Stroke 75 Cylinders 6 Comp. efficiency 75% Intercooler efficiency 70% Boost 7 and 12 psi Volumetric efficiency 88% (Per FSM Section 2.7 Figure 8) RPM 6500 Then plot on the graph and according to the graph, my best choices are, according to the efficiency of the turbo: GT42 w/ 102mm .60 AR T70 7 psi: http://not2fast.wryday.com/turbo/glo...orDutyCycle=85 12psi: http://not2fast.wryday.com/turbo/glo...orDutyCycle=85 Just pick the turbo from the list below the numbers to see the graphs Thoughts?
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'93 Anniversary Edition SVX 122k - 3.7 FD 5MT Swap, ECUtune 1a1, Bontrager RSB, Mad Restoration underway! '20 Honda Ridgeline Custom Oil Caps, Battery Bars, Phenolic Spacers for sale here: http://www.x35design.com Last edited by Stevebsy; 10-14-2006 at 11:42 AM. |
#2
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uhhhh. Am i the only one that sees a huge problem here.
phil
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~Phil Teal 1992 Subaru SVX Turbo - Sold in May 2011 to peace-frog. |
#3
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I guess so
What's wrong?
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'93 Anniversary Edition SVX 122k - 3.7 FD 5MT Swap, ECUtune 1a1, Bontrager RSB, Mad Restoration underway! '20 Honda Ridgeline Custom Oil Caps, Battery Bars, Phenolic Spacers for sale here: http://www.x35design.com |
#4
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Quote:
Volumetric efficiency 88% (Per FSM Section 2.7 Figure 8) Steve that dia. shows the air pumping capacity of the engine. The picture changes when the engine is actually running, and the exhaust action is working. It gets to 104%. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#5
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If that is the case, the T76 looks like the winner, at 7 or 12 psi.
http://not2fast.wryday.com/turbo/glo...orDutyCycle=85
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'93 Anniversary Edition SVX 122k - 3.7 FD 5MT Swap, ECUtune 1a1, Bontrager RSB, Mad Restoration underway! '20 Honda Ridgeline Custom Oil Caps, Battery Bars, Phenolic Spacers for sale here: http://www.x35design.com |
#6
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Your Turbo
Sounds about right. I am running a T3/T4 garret hybrid with a 60 compressor wheel. It seems to work well. So when does it go in?
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Chuck D. 1992 Subaru SVX LS-L - Heavily modded turbo 2002 Subaru Impreza WRX- Turboxs stg3 & Susp. Mods |
#7
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Quote:
That turbo will spool very slowly. It definetly will not make good usable street power. Go with a large t3/t04 or 60-1 t4 phil
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~Phil Teal 1992 Subaru SVX Turbo - Sold in May 2011 to peace-frog. |
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