Borg Warner S360 vs S363 vs S366

[cloudstruck]

Choosing a turbo for my rb25 setup
wanting between 400-450
and ill be running meth injection

i get some input from people saying to get the s366 for more top end
but i dont plan on building the motor to go beyond this point..

but i also know the s360 should obviously spool faster but not sure how the top end would feel?

want opinions and personal experience from people

[itsmillertime]

I have a brand new s366 with a 1.10 ar t4 housing. Bought if for a 5.3 but it is a little small. Would be perfect for an inline 6 though.

[cloudstruck]

More looking for opinions between the 3 than anything but I'll keep that in mind

[kashira kureijii]

More looking for opinions between the 3 than anything but I'll keep that in mind

I would also like to see everyones opinions on this, I have an rb25 sitting on my garage floor that yearns for a future.
Also borg warners seem to have some pretty good deals, elders should chime in on this

[cloudstruck]

Yea Borg Warner seems to be the best affordable turbo I think
But these seem like the best 3 options from them

[kashira kureijii]

Yea Borg Warner seems to be the best affordable turbo I think
But these seem like the best 3 options from them

I know right? they're like 800 bucks from some sellers like tacoma nissan (maybe not the ones you listed),
I look forward to seeing someone place an opinion on these before i buy one too, because they might be affordable but not enough to were i can just try until i find a good one

[PoorMans180SX]

Choosing a turbo for my rb25 setup
wanting between 400-450
and ill be running meth injection

i get some input from people saying to get the s366 for more top end
but i dont plan on building the motor to go beyond this point..

but i also know the s360 should obviously spool faster but not sure how the top end would feel?

want opinions and personal experience from people

We've made 570whp on a 2.3liter with the S360 on pump gas. The S366 steps up in compressor and turbine size by quite a lot, and is definitely a slower spooling turbo. The 360 should be plenty for your goals. We have pretty killer pricing on BorgWarners, feel free to PM me when you're looking to buy and I'll get you a price.

http://i.imgur.com/70Q3oTi.jpg

[bardabe]

We've made 570whp on a 2.3liter with the S360 on pump gas. The S366 steps up in compressor and turbine size by quite a lot, and is definitely a slower spooling turbo. The 360 should be plenty for your goals. We have pretty killer pricing on BorgWarners, feel free to PM me when you're looking to buy and I'll get you a price.

http://i.imgur.com/70Q3oTi.jpg

^^^ yup i was just about to say that,

S360 will be what you want, it'll make your power figures no problem & drive very well. the Twin Scroll T4 housing in .91 AR will get you the best spool and powerband. if you plan to use E85 or Race gas in the future make sure to get the bigger 1.00 AR or 1.10 as the .91 will choke the turbo at higher (2 Bar) boost levels.

[cloudstruck]

Cool so I need the bigger housing
I'll be running about 25 pounds with methanol

[PoorMans180SX]

^^^ yup i was just about to say that,

S360 will be what you want, it'll make your power figures no problem & drive very well. the Twin Scroll T4 housing in .91 AR will get you the best spool and powerband. if you plan to use E85 or Race gas in the future make sure to get the bigger 1.00 AR or 1.10 as the .91 will choke the turbo at higher (2 Bar) boost levels.

This is the .91 housing at 28psi, and shows no sign of choke even when the wastegate spiked and hit 34psi (green line). 1.00 and 1.10 are more for if you have a large displacement engine and want to run a turbo on the small side. I don't think the .91 will be restrictive on the 2.5 until about 35psi.

[bardabe]

This is the .91 housing at 28psi, and shows no sign of choke even when the wastegate spiked and hit 34psi (green line). 1.00 and 1.10 are more for if you have a large displacement engine and want to run a turbo on the small side. I don't think the .91 will be restrictive on the 2.5 until about 35psi.


On a recent subaru build i did, we had a fully forged block with Kelford valve train, camshafts, the cams were not extremely big but they are 272's non the less & port work done as well. revving the engine to 7750 after 26psi we noticed that the peak power was being made earlier and earlier in the RPM range. by the time we did the 32psi pull we hit peak power at 6200 RPM and then tapered off on redline. Sean Church & I both thing it's the hot side being to small (for that kind of boost) considering everything in the car has plenty of breathing room. Full Race kit, big intercooler, big throttle body, TGV's deleted & all that handled. granted the car was making 540+ AWHP and the customer was extremely happy with how responsive the turbo is for it's size he did not mind. Sean did recommend a bigger AR if he wanted to go for numbers, that was my personal experience on a 2.5L engine.

[PoorMans180SX]

On a recent subaru build i did, we had a fully forged block with Kelford valve train, camshafts, the cams were not extremely big but they are 272's non the less & port work done as well. revving the engine to 7750 after 26psi we noticed that the peak power was being made earlier and earlier in the RPM range. by the time we did the 32psi pull we hit peak power at 6200 RPM and then tapered off on redline. Sean Church & I both thing it's the hot side being to small (for that kind of boost) considering everything in the car has plenty of breathing room. Full Race kit, big intercooler, big throttle body, TGV's deleted & all that handled. granted the car was making 540+ AWHP and the customer was extremely happy with how responsive the turbo is for it's size he did not mind. Sean did recommend a bigger AR if he wanted to go for numbers, that was my personal experience on a 2.5L engine.

Interesting. The car above is a 2.3 4G63 with 276HL kelford cams. The car was going to be run on E85 with 35psi, but crankwalked before it got there and he abandoned the project. :tardrim:

Subaru's aren't great at making peak numbers, and I'd be led to believe it's the cams not making power up that high, but you could be right. Keep in mind the compressor only flows 65ish lb/min as well, so we're nearing it's max output anyway.

[kalel540]

I am running BW S360 on my 2jzgte with 264 BC cams at 15psi is making 543hp and 504 torque. Hits full boost at 4k RPM and it Hits really hard :). plus the sound is stupid sexy.

[tougedreams]

I run a s300x aka s360 on my rb. I feel if you're only trying to make 450whp I would go with a smaller turbo. These things are great for big power but I would consider it a little laggy if I was only trying to make 450. I made 540whp/440tq on 12psi with my rb26/25 motor.


I am selling a manifold that would be perfect for this turbo in the for sale section! :naughty:

[rastaman]

Nice info here subscription

[cloudstruck]

I went with the s360 lol
We'll see how it goes after the tune