Looking at borg warner s366, recomendations?
#28
I recently got an aspec t4 short runner manifol/dp with HPC hypercoat and now im looking into turbos...
im looking to get 450-500hp at high boost (18-20psi) without too much lag... i would like my low boost to be anywhere in the 300... i would rather compromise peak HP for response. the car is also pretty much daily driven, and would rarely see 450+hp... but i want to know the turbo i buy is capable of doing so and not be a restricting factor if i decide to go that high.. ive been reading up about the s366 and was wondering would the s366 be the right choice for me?
this is the one im looking at
http://www.diesel-plus.com/dd_turbo.cfm?npid=9784
only thing is i believe the .91 is a little on the big side and i should go with something in the .8x range?
some of my supporting mods are...
hbp
550/1600
fpr
aem water/meth running winshield fluid
denso fp
koyo rad
greddy fmic
apexi pfc
any help or suggestions would be great
thanks!
im looking to get 450-500hp at high boost (18-20psi) without too much lag... i would like my low boost to be anywhere in the 300... i would rather compromise peak HP for response. the car is also pretty much daily driven, and would rarely see 450+hp... but i want to know the turbo i buy is capable of doing so and not be a restricting factor if i decide to go that high.. ive been reading up about the s366 and was wondering would the s366 be the right choice for me?
this is the one im looking at
http://www.diesel-plus.com/dd_turbo.cfm?npid=9784
only thing is i believe the .91 is a little on the big side and i should go with something in the .8x range?
some of my supporting mods are...
hbp
550/1600
fpr
aem water/meth running winshield fluid
denso fp
koyo rad
greddy fmic
apexi pfc
any help or suggestions would be great
thanks!
Here is a thread from 4 years ago of my car with the Borg Warner 1.15 a/r with a 61.5mm compressor wheel at 25 lbs it made 544 whp with full 25 lbs spool at around 4400 rpms non ball bearing looking at the graph in the thread...
https://www.rx7club.com/single-turbo-rx-7s-23/pfsupercars-built-tuned-makes-544-whp-537008/
at 27 lbs it maxed out at 561 whp. At 20 lbs it made 500whp with full spool around 4250 rpms. At 16.8 lbs it made 427 and full boost was 4K. here is the graphs...
I had a 1.15 A/R, gets the heat out which is key to the survival along with proper fuel and tuning. I ended up going with the S366 and with a normal run of the mill street port and OEM 2mm seals, made 610 whp. Here is that graph...
Good luck.
#32
I would use the R85 turbo for your street application...but there are many turbo's out there that will do what you are wanting to do. I just chimed in because you were asking about the BW turbo that I had. I did notice it spooled a bit later than my R85 BW setup, but it netted better top end. Good luck
#34
I originally had a R85 (BORG WARNER) which is a 61.5 mm compressor with a 1.15 a/r. I wanted more power, so I upgraded to a bullseye power turbo...which is a S366. The turbos (r85 and s366) are off the shelf turbos. I believe the R85 is called a S361 or S362 or something like that from bullseye. I had to ask them to use the 1.15 A/R turbine housing on my S366, which they had on the shelf because all of these turbo's do not use the 1.15 a/r.
The reason the S366 had slower spool was because the compressor wheel was 5.5 mm bigger than my R85, but everything else was identical (turbine wheel size and A/R and front cover.)
Again, I would recommmend you go with the smaller compressor wheel (61.5-62mm)with the extended tip vs the S366(66mm) for spool response and a larger A/R. 400 whp is plenty enough for the street use and since you are going half bridge, you will be making more power at lower boost vs street port. I was only on a simple street port and made 561@27 lbs maxed out on the R85 (61.5mm). If you are a good driver....350whp will net mid to high 11's in the quarter.
If you looked at all my graphs...the only S366 I have is the one with 610 whp...all others were on the R85
#35
well my reasoning for going "wanting" to go with the s366 was beacuse i didnt want to run insane boost.. your 561@ 27 is nice, but there is noooo way i wanna run more then 20psi, i would like to make 450-500 at 18psi, if it cant be done, then it cant be done...
i dont mind lag i just dont want to be sitting all day and then catch it... thats why im opting for the .91 A/R.. well atleast thats my logic and sense... does my reasoning make sense?
i dont mind lag i just dont want to be sitting all day and then catch it... thats why im opting for the .91 A/R.. well atleast thats my logic and sense... does my reasoning make sense?
#36
well my reasoning for going "wanting" to go with the s366 was beacuse i didnt want to run insane boost.. your 561@ 27 is nice, but there is noooo way i wanna run more then 20psi, i would like to make 450-500 at 18psi, if it cant be done, then it cant be done...
i dont mind lag i just dont want to be sitting all day and then catch it... thats why im opting for the .91 A/R.. well atleast thats my logic and sense... does my reasoning make sense?
i dont mind lag i just dont want to be sitting all day and then catch it... thats why im opting for the .91 A/R.. well atleast thats my logic and sense... does my reasoning make sense?
Dont get caught up in the numbers game, as there are many more factors that come into play. I have given you my experience and advice, but you are going to do what you want. Good luck on whatever turbo you go with.
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