best turbo setup for 350-375whp
03-22-13, 10:29 AM
#1
best turbo setup for 350-375whp
like the title says i am wanting to make 350-375whp with around 12-15psi. i had a bnr stage 4 and it just didnt cut it and i dont want to max out the turbo just to make my goal. i would love as little lag as possible as i want this setup for kind of a all around toy...drifting,drag,autocross,etc...I've been doing research but just figured id get some other peoples inputs
03-22-13, 04:11 PM
#3
like the title says i am wanting to make 350-375whp with around 12-15psi. i had a bnr stage 4 and it just didnt cut it and i dont want to max out the turbo just to make my goal. i would love as little lag as possible as i want this setup for kind of a all around toy...drifting,drag,autocross,etc...I've been doing research but just figured id get some other peoples inputs
03-23-13, 11:54 AM
#7
Don't hate my V8
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we'll see what my home brew s5 hybrid puts down when i go to the dyno in a couple weeks (idk what wheel trim it is, is got a 59-60mm inducer), its fairly similar to the bnr stg4, but i'm running ~18psi on a stock s5 keg. i'm hoping for atleast 320whp.
my car is hitting 7-10psi @ 2200rpm, I think for faster response i would need a supercharger
my car is hitting 7-10psi @ 2200rpm, I think for faster response i would need a supercharger
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03-23-13, 09:04 PM
#12
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wouldn't it make a bigger difference in spool time when you start putting larger compressors on the stock turbo depending on s4 or s5 turbine housing/manifold? the s4 i could see getting a little laggy
03-23-13, 09:27 PM
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On a side note i was never really sure if the "twin scroll" actuator/flap was working correctly on my s4 setup. That may or may not have had something to do with the difference in spool time, they were still close but the difference between the two was noticeable with the larger compressor.
03-24-13, 12:05 PM
#17
How much does it cost to stud one? I've seen 400+ whp on stock engine before long time ago from some guy j-rat I think his name was with a 10ae. Wonder how much abuse it took before giving.!
03-24-13, 12:25 PM
#18
there have been a few cases of people getting over 500whp from unopened blocks. but the way i see it and have experienced, unopened blocks have better holding grip than a rebuilt fresh engine does, with slicker clean mating surfaces.
studding and dowelling all range from about $350-700. it's not absolutely necessary but it is a safeguard. usually pushed more on people aiming for over 400whp.
studding and dowelling all range from about $350-700. it's not absolutely necessary but it is a safeguard. usually pushed more on people aiming for over 400whp.
03-26-13, 11:05 AM
#19
didnt really have any complaints with the turbo honestly i just felt i was pushing it and stressing it to get me near what i wanted. great turbo and really not laggy at all! i just would like to make 350whp"ish without stressing the turbo or motor too much.
it made 339whp and 252wtq and nothing was "wrong" with my setup to my knowledge
03-26-13, 12:46 PM
#21
didnt really have any complaints with the turbo honestly i just felt i was pushing it and stressing it to get me near what i wanted. great turbo and really not laggy at all! i just would like to make 350whp"ish without stressing the turbo or motor too much.
Video Link: http://www.youtube.com/watch?v=Y5oTCnGgqvY
it made 339whp and 252wtq and nothing was "wrong" with my setup to my knowledge
Video Link: http://www.youtube.com/watch?v=Y5oTCnGgqvY
it made 339whp and 252wtq and nothing was "wrong" with my setup to my knowledge
How much boost were you running? I believe the stage 4 is good up to 18psi but don't quote me
03-26-13, 01:18 PM
#24
problem probably lies with the Rtek, no offense to them or you but it is probably the least capable "EMS" out there and i simply don't trust it to make peak performance from most any setup. hopefully they also made it able to adjust multiple cells at the same time, i was getting carpel tunnel from tapping that palm pilot.
J-rat i believe ran his stage 4 up to about 415whp before the turbo gave up due to the 2 step and i've personally tuned a stage 4 that put out more at just 12-13psi.
of course changing the turbo is probably cheaper than buying a new standalone.
if it was a mustang dyno then that is probably one reason why it seems low.
J-rat i believe ran his stage 4 up to about 415whp before the turbo gave up due to the 2 step and i've personally tuned a stage 4 that put out more at just 12-13psi.
of course changing the turbo is probably cheaper than buying a new standalone.
if it was a mustang dyno then that is probably one reason why it seems low.
Last edited by RotaryEvolution; 03-26-13 at 01:24 PM.
03-26-13, 02:18 PM
#25
From my experience running both turbos, the s5 is less laggy. especially when paired up with a larger compressor. stock to stock its almost undetectable because the compressor is so small. larger compressors & housings seem to show a more noticeable difference IMO/E. A compressor w/ a 60mm inducer with low AR reaching full boost (18psi) @ ~3k is pretty damn good.
On a side note i was never really sure if the "twin scroll" actuator/flap was working correctly on my s4 setup. That may or may not have had something to do with the difference in spool time, they were still close but the difference between the two was noticeable with the larger compressor.
On a side note i was never really sure if the "twin scroll" actuator/flap was working correctly on my s4 setup. That may or may not have had something to do with the difference in spool time, they were still close but the difference between the two was noticeable with the larger compressor.