[For Sale] New BorgWarner EFR 9174 in stock !
09-11-15, 05:09 PM
#1
New BorgWarner EFR 9174 in stock !
Borgwarner has release a hybrid turbocharger between the size of the 8374 and the 9180. It uses the 9180 compressor wheel attached to the 8374 turbine wheel. I am not sure exactly how these will perform as honestly the 9180 is not slow AT all as is!( we get 20 psi by 3k on our FC3S chassis). Regardless we have these in stock now. They are available as a supercore and fit the 8374 turbine housings( T4 iwg .92, and T4 1.05). Those are the only housings to use a rotary FYI.
BorgWarner EFR 9174
BorgWarner EFR 9174
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10-28-15, 02:38 PM
#12
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I know in the borg warner technical paper that they wrote about how hard the AlTI turbine wheels are to make and to get them to stay on the pin....they have a patent on how they secure the wheel to the assembly. I doubt its very easy and not like any of the other turbo's people work with.
10-28-15, 08:01 PM
#17
With our short runner one can see 31 psi by 3400rpms. Even then the compressor is surging. One does not need any faster. Our kits clear the ac lines too.
We are now out of stock of these. Its only a matter of time before we get some dyno results...
10-28-15, 09:19 PM
#18
It will only in theory respond faster from say 0 to 5 psi, but after that be slower.
With our short runner one can see 31 psi by 3400rpms. Even then the compressor is surging. One does not need any faster. Our kits clear the ac lines too.
We are now out of stock of these. Its only a matter of time before we get some dyno results...
With our short runner one can see 31 psi by 3400rpms. Even then the compressor is surging. One does not need any faster. Our kits clear the ac lines too.
We are now out of stock of these. Its only a matter of time before we get some dyno results...
Im aiming for 450~475hp with 375-400tq to the wheels
Im not looking to run boost levels over 20psi by much if at all and will be running 94octane and 50/50 w/m injection. Just aiming for the most usable powerband posible and waz currious if this new 9174 or maybe eventual 8380 would better auit my needs
10-29-15, 08:08 PM
#19
8374 is all your need.
Thanks Im happy with the 8374 im going to use more just better educating myself on the otger options.
Im aiming for 450~475hp with 375-400tq to the wheels
Im not looking to run boost levels over 20psi by much if at all and will be running 94octane and 50/50 w/m injection. Just aiming for the most usable powerband posible and waz currious if this new 9174 or maybe eventual 8380 would better auit my needs
Im aiming for 450~475hp with 375-400tq to the wheels
Im not looking to run boost levels over 20psi by much if at all and will be running 94octane and 50/50 w/m injection. Just aiming for the most usable powerband posible and waz currious if this new 9174 or maybe eventual 8380 would better auit my needs
10-29-15, 09:20 PM
#20
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It would be more efficient at the expense of spool up. The efr 8374 spools amazingly already, putting the larger turbine wheel on it makes it more efficient with less back pressure and retains less heat. You will see a little slower spool, which is fine, but gain efficiency up top. instead of being the low end and mid range all star, it extends its power up top better at expense of just a little low end and mid range.
Perfect turbo then.
10-30-15, 02:33 AM
#22
about 8380 ..i just got one buildt for me with ar 1.45 from the parts leftovers from a 9174 build :-)
looks awesome and will be on a 20b in a raceclass where turbos are restricted not to produce more then 600hp
looks awesome and will be on a 20b in a raceclass where turbos are restricted not to produce more then 600hp
Last edited by rx7jocke; 10-30-15 at 02:35 AM.
10-31-15, 12:24 PM
#23
I envision the opposite.
It would be more efficient at the expense of spool up. The efr 8374 spools amazingly already, putting the larger turbine wheel on it makes it more efficient with less back pressure and retains less heat. You will see a little slower spool, which is fine, but gain efficiency up top. instead of being the low end and mid range all star, it extends its power up top better at expense of just a little low end and mid range.
Perfect turbo then.
It would be more efficient at the expense of spool up. The efr 8374 spools amazingly already, putting the larger turbine wheel on it makes it more efficient with less back pressure and retains less heat. You will see a little slower spool, which is fine, but gain efficiency up top. instead of being the low end and mid range all star, it extends its power up top better at expense of just a little low end and mid range.
Perfect turbo then.
Thank you that makes perfect sense and clears things up.
11-01-15, 06:09 AM
#24
I envision the opposite.
It would be more efficient at the expense of spool up. The efr 8374 spools amazingly already, putting the larger turbine wheel on it makes it more efficient with less back pressure and retains less heat. You will see a little slower spool, which is fine, but gain efficiency up top. instead of being the low end and mid range all star, it extends its power up top better at expense of just a little low end and mid range.
Perfect turbo then.
It would be more efficient at the expense of spool up. The efr 8374 spools amazingly already, putting the larger turbine wheel on it makes it more efficient with less back pressure and retains less heat. You will see a little slower spool, which is fine, but gain efficiency up top. instead of being the low end and mid range all star, it extends its power up top better at expense of just a little low end and mid range.
Perfect turbo then.