Borgwarner S366 turbo

[thilaksharma]

Need some input on this turbo guys
its not the regular Bullseye turbo that you guys usually see
this is a pure borgwarner from the factory itself

S366 with 0.88 turbine housing (not sure its t3 or t4)
it is a extended tip indeed, anyone got any feedbacks on how this would spool on a 2.0cc\

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[DWR-DSM]

I was gonna go with that turbo but I wanted more power so I went with the s372 (racecover) spools like a 50 and makes power like a GT42r

Specs for the s366 (not XL version)
Turbocharger Name - S366
Compressor Wheel Inducer - 66mm
Compressor Wheel Exducer - 92.7mm
Compressor Wheel Trim - 51
Turbine Wheel Inducer - 76.3mm
Turbine Wheel Exducer - 67.6mm
Turbine Wheel Trim - 79
Horsepower Rating - 400-750

TURBINE HOUSING OPTION
Outlet Inlet A/R
4 Bolt T3 .55
5 Bolt T3 .55
V-Band T3 .70
V-Band T4 .83
V-Band T4 .91


My Turbo-

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[banishedmunk]

my 366 with a .91ar spools 30psi by 5k and when it hits its hits hard breaking all 4 loose in 3rd but this is all on a 2.3. the only down fall is the exhaust housing outlet. it requires a special flange that you can only get from borgwarner.

 

[habitatguy187]

my 366 with a .91ar spools 30psi by 5k and when it hits its hits hard breaking all 4 loose in 3rd but this is all on a 2.3. the only down fall is the exhaust housing outlet. it requires a special flange that you can only get from borgwarner.

I rode in a 2.0 1g that had the s372 (bigger) and we hit 22psi under 4k, I would think that you should be hitting fuel boost sooner due to the displacement.

 

[Steve93Talon]

Carl at GVautosport's S366 in the smallest divided T4 hotside available sees 35psi around 6k on a 2 liter. This was on an HKS manifold which uses a single wastegate and therefore Y's the divided entries together, which in theory could cause reversion and negate the twin scroll effect. He ran a best of 10.5 @ 140 on it.

 

[habitatguy187]

You sure that wasn't a typo? Even s362s spool slower.

Yeah I'm sure, it was like 38-3900ish but still under 4k. I know that his compression ratio is pretty high though so that might help it, also has a 3.5 inch exhaust and 3in intercooler piping. (which might actually slow spool )

 

[rrussell]

I'm hitting full boost at 4900rpm with a BW 366 T3 .70A/R hot side.

Stock cams with 2g pistons.

 

[BlackHalo]

So which one has a quicker spool 362 or 366? I will be running this on a t4 setup on a 2.0

 

[Slippi84]

Yeah I'm sure, it was like 38-3900ish but still under 4k. I know that his compression ratio is pretty high though so that might help it, also has a 3.5 inch exhaust and 3in intercooler piping. (which might actually slow spool )

These turbo's are not magic guys. There is no way on a 2.0 your buddy is seeing full boost(unless full boost is like 20 psi or lower) before 4k on a turbo like that.

Compression does not make a turbo spool faster by the way. This was a debate and a fact proven a while ago by a couple guys who upped compression only to see VERY minimal difference in spool.

On either S366 or S374 expect full boost between high 4k-6k on a 2.0

 

[DWR-DSM]

So which one has a quicker spool 362 or 366? I will be running this on a t4 setup on a 2.0

Which Compressor Housing?

Which Turbine Housing?

Also your mods would depend on the spool also.

 

[Slippi84]

So which one has a quicker spool 362 or 366? I will be running this on a t4 setup on a 2.0

Assuming all things the same the s362. You can of course mess with hotsides and change that but with the same hotside and engine/tuning the s362 will spool faster, but of course the trade off is the s366 will make more power given that same scenario

 

[habitatguy187]

These turbo's are not magic guys. There is no way on a 2.0 your buddy is seeing full boost(unless full boost is like 20 psi or lower) before 4k on a turbo like that.

I said he made 22 psi before 4k, I have no idea what he's seeing full boost at.

 

[mindset]

thilaksharma, I don't know if you're set on the 300 Series but have you looked at the S256? They get excellent spool and power.

 

[jo1]

welcome to the dark side thilak... Mine start spooling around 6k and getting full boost at 7.5k. It a bit lazy to start spooling but when it start there only 500rpm different in full boost at 23psi and 40psi.
Considering the same turbine wheel with smaller turbine housing and 66 compressor wheel, it should spool just before 5k and seeing full boost after 1k or 1.5k depend on what the full boost you are running.

 

[andy4g63]

I'm hitting full boost at 4900rpm with a BW 366 T3 .70A/R hot side.

Stock cams with 2g pistons.

Let's get one thing straight, guys:
Let's mention at WHAT gear, you, or anyone else had that particular spool...

BTW There is no way, that is in 3rd, cause I have HX-40 and I see 23PSi with same housing@4700 RPM's in 3rd gear/and all the MODS/. Like Sean said, these turbos are not magic and this kind of info is misleading to me, because I am allways thinking 3 gear and as I see, most of dyno passes are done in 3 gear too.

 

[whitedawg]

I would have to see some sort of a datalog w/MAP sensor. It's too hard to judge looking at the tach and boost gauge to get a conclusive number. The log never lies.

 

[lowexpectations]

I would not call any of the s300 series turbo street car turbo's. You really have to rev the motors to make these turbos fun at least in my opinion. Who wants to get boost between 5-5.5k and shift around 7k?

 

[Slippi84]

I'm almost certain that's what he has, I'll find out and post back, but I'm not one to lie about things at all (especially for no reason, it's not like I'm getting paid to sell these things) But I'll double check and I'm sorry if you guys say that this info is way off then I ask a mod to delete the posts so that no one is mislead.

Please be sure before posting stuff like that you could sway someone into buying a $1300 part only to be disappointed. I"m not flaming you or calling you a liar just double check your info on something like that because that is not common spool characteristics of a turbo this size.

 

[jimmysmk3]

well most people thinking about utilizing this size turbo more than likely have the supporting mods to be able to rev their motor above redline. a s366 isnt exactly a turbo many people would consider for a stock setup. with saying that getting full boost at 5k and revving to 9k isnt too bad of a powerband if you ask me.

 

[lowexpectations]

me and my 2.3 do!!

You got me there I should of clarified to say it is not what I call a good street car turbo on a 2.0l.

well most people thinking about utilizing this size turbo more than likely have the supporting mods to be able to rev their motor above redline. a s366 isnt exactly a turbo many people would consider for a stock setup. with saying that getting full boost at 5k and revving to 9k isnt too bad of a powerband if you ask me.

I have seen so many people asking questions about this motor that do not have the ability to rev a motor to 9k. Yes 5-9k is a reasonable powerband but not for a 2.0l daily driver street car. I can tell you first hand that for a fun daily driver street car I would love to have a 16g or 20g on my car. Fortunatly I no longer daily drive my dsm and am not so much worried about the quick spool that makes a small turbo so much fun.

Granted everyone has their opinions and mine may differ from theirs.

 

[rrussell]

I think you guys are missing the point though. With a turbo like this it doesn't pay to run less than 25psi so when you say max boost or fully spooled or anything like that anyone talking about or dealing with these turbo's is assuming your talking about 25psi+. WHen you set your boost controller for 20psi and say you hit max boost at a certain rpm of course you will hit it sooner than most with this turbo. I could set my controller to 5psi and hit full boost at the same time as a t25. See my point ...

I see what your saying. But for me I wanted to see what a stock engine could do with a good size turbo. As of right now the car will go 11.5 all day long and a little faster at this boost level. Problem is the car is not caged and not legal at this time.

I purchased this turbo in thinking why buy a turbo now then buy another later when I install my built engine this winter.

Slippi84 you said "With a turbo like this it doesn't pay to run less than 25psi"
Have you personally drove or rode in a car with a BW366????????????????

I had a FP 3065 before this turbo and IMO the BW366 spools the same if not faster.

 

[diambo4life]

I ask anyone who quotes "spool numbers" to say what gear the car was in, the numbers be verified by a logged MAP sensor (I would prefer you post a screenshot of the datalog,) displacement of the vehicle must be stated and it must be done on a flat road. There is just way too much bullshit with the numbers people are throwing around on these BW turbos. The S372 spooling 22psi before 4,000rpm is an example of a very misleading statement. I know so because the smaller S362 spools slower than that from logs I have personally seen posted on DSMlink forums.

 

[Slippi84]

I see what your saying. But for me I wanted to see what a stock engine could do with a good size turbo. As of right now the car will go 11.5 all day long and a little faster at this boost level. Problem is the car is not caged and not legal at this time.

I purchased this turbo in thinking why buy a turbo now then buy another later when I install my built engine this winter.

Slippi84 you said "With a turbo like this it doesn't pay to run less than 25psi"
Have you personally drove or rode in a car with a BW366????????????????

I had a FP 3065 before this turbo and IMO the BW366 spools the same if not faster.

There are 3 different BW turbo's being thrown around and I feel like you guys are grouping there spool characteristics together. A s366 and S374 are two VERY different turbo's. Comparing a s366 and a fp3065 is not that big of a difference, where as a s374 to a 3065 is. Like diambo4life I am a dsmlink forum member and have seen logs of these turbos and they do NOT support the spool characteristics that some of you guys are posting.

The real question is have you ever had YOUR car up to over 25psi before? Because I bet if you do turn the knob up past that point it will change your mind on how fast you think your car is now

 

[dSmgs-T]

There are 3 different BW turbo's being thrown around and I feel like you guys are grouping there spool characteristics together. A s366 and S374 are two VERY different turbo's. Comparing a s366 and a fp3065 is not that big of a difference, where as a s374 to a 3065 is. Like diambo4life I am a dsmlink forum member and have seen logs of these turbos and they do NOT support the spool characteristics that some of you guys are posting.

The real question is have you ever had YOUR car up to over 25psi before? Because I bet if you do turn the knob up past that point it will change your mind on how fast you think your car is now

comparing an s366 and a fp3065 is a big difference. the smaller s362 even is closer to a 35r!!!

 

[dsm-onster]

It's really about turbines. Most turbos with different compressors and similar turbines spool ABOUT the same. Which turbine wheels are being used? Which turbine housings? The fp3065 doesn't spool that much different from the fp3052. They have the same turbine housing and wheel. The td05h 18g and td05h 16g that I've used spooled very close to the same. Unfortunately they flowed about the same too as the turbine choked the compressor.

I've seen the s366 spool differently with different turbine housings. And I've seen a s372 spool as fast as an s366 (different housings). All on the link forums. So what's the specs? No need to throw around numbers without clarifying which turbo you're discussing.

Not caring about roll races has nothing to do with the understood standard to start at 2K-ish in 3rd and rev to redline to determine spool speed. It's just what is practiced; and wheen declaring spool speed, everyone will be assuming that you did this. How you race isn't whats being talked about . If you can get that spool speed in 2nd, then congrats. Is that what youre saying? Which s366 do you have?