$400 Turbo!
#4
I know that I'm WAY out of place here....I own a sand rail but mostly Snowmobile. Can you tell me where to find info on the $400 turbo? I'd like to put one on my '02 Polaris RMK 800 (twin)! I did a Yahoo search about an hour ago and this is where I ended up.
Thanks,
John
Thanks,
John
#6
There are a number of turbos in the 400$ range just go to your local turbo shop and discuss your plans and they should be able to set you up with a turbo in that range!!
#7
Scooby,
Tell me what would be a safe ,and reliable boost for that particular turbo? I know you run 8:1 and run high boost, but if I drop down to say 11:5:1 would 7-8 lbs of boost be to much still?? Now that I have this FI system , I think a turbo woul dbe alot easier to make work.
Call me if you have time (580) 821-1200.
bigger.
Tell me what would be a safe ,and reliable boost for that particular turbo? I know you run 8:1 and run high boost, but if I drop down to say 11:5:1 would 7-8 lbs of boost be to much still?? Now that I have this FI system , I think a turbo woul dbe alot easier to make work.
Call me if you have time (580) 821-1200.
bigger.
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#8
I was able to run around 18psi on alcohol with stock 9.7:1 static compression ratio piston (about the time rings started breaking).
boost pressure ratio = (14.7psi + boost)/14.7 = 2.22 @ 18psi of boost
static boost compression = boost pressure ratio * static compression ratio = 21.5 @ 18psi of boost and static CR of 9.7:1
if you want to run 21.5 static boost compression, work backwards.
max boost = [(21.5/static CR) * 14.7] - 14.7 = 12.78psi @ 11.5:1 static ompression ratio
or use calculator here: http://www.turbofast.com.au/TFcompB.html Use 100% VE for static calculations.
your fuel pressure regulator would probably have to be referenced to boost pressure like mine.
you might have to remove some of the extra ignition timing you have and/or use vortex CDI.
boost pressure ratio = (14.7psi + boost)/14.7 = 2.22 @ 18psi of boost
static boost compression = boost pressure ratio * static compression ratio = 21.5 @ 18psi of boost and static CR of 9.7:1
if you want to run 21.5 static boost compression, work backwards.
max boost = [(21.5/static CR) * 14.7] - 14.7 = 12.78psi @ 11.5:1 static ompression ratio
or use calculator here: http://www.turbofast.com.au/TFcompB.html Use 100% VE for static calculations.
your fuel pressure regulator would probably have to be referenced to boost pressure like mine.
you might have to remove some of the extra ignition timing you have and/or use vortex CDI.
#9
Hi Sean (Jetsnow600),
Man you spend too much time at the computer! [img]i/expressions/face-icon-small-smile.gif[/img] I'll have you beat the next time we drag. I just picked up a PSI Genesis 925 for the Polaris. You better get some pipes on the cat quick.
AZSAND, We have no turbo shops in this little "hodunk" town of Winnemucca. Does anybody have a phone # for their local shop and I'll phone order something????
Thanks,
John
Man you spend too much time at the computer! [img]i/expressions/face-icon-small-smile.gif[/img] I'll have you beat the next time we drag. I just picked up a PSI Genesis 925 for the Polaris. You better get some pipes on the cat quick.
AZSAND, We have no turbo shops in this little "hodunk" town of Winnemucca. Does anybody have a phone # for their local shop and I'll phone order something????
Thanks,
John
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