Borgwarner S366 turbo

[dsm-onster]

Speaking about spool speeds from logs on a closed forum doesn't make them any less legitimate. Sorry you don't have the money for link (just messin' ). Let's open that can of worms . I've confirmed that Sean and Mike are not mistaken about what they've seen on a "closed forum". These turbos generally spool a bit later than what's remarked in this thread. Actual logs from an a accurate logger with a gm map sensor.

I'm sorry but I don't have to own a turbo to know for sure when it typically spools with common boltons. I have access to an incredibly detailed and accurate database. No one tunes their car for later spool (for the most part). Final logs after the tweeking are what I've been looking at.

 

[rrussell]

My turbo specs as requested.
Compressor Wheel Part # - 300100-3
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
Turbine Wheel Part # - 310100-7
Turbine Option - Outlet - V-Band
Turbine Option - Inlet - T3
Turbine Option - A/R - 0.70

 

[diambo4life]

This is the reason I never take anyone's word when they say how fast their turbo spools. Put up a log with RPM/Speed/Boost for everyone to see the numbers you claim. It's not difficult. See? I can do that in 2 minutes and no one has to doubt anything.

 

[dsm-onster]

My turbo specs as requested.
Compressor Wheel Part # - 300100-3
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
Turbine Wheel Part # - 310100-7
Turbine Option - Outlet - V-Band
Turbine Option - Inlet - T3
Turbine Option - A/R - 0.70

There are two different turbine wheels offered for the 366. And before you claim that the specs are close enough for the difference in spool to be negligible, the hx40 10blade turbine wheel spools a quite a bit faster than an hx40 12 blade in the same housing. Yet the diameters and contour is identical.

There's a .76 a/r and a .85 a/r t3 boltpattern turbine housing available as well.

 

[Steve93Talon]

Here's a screenshot of a pull on Carl's S366 setup. Again, he was running the HKS cast T4 manifold which isn't truly divided since it shares a single gate passage with both pairs of runners. It also is cast with the divider not flush with the flange, so it's literally like running an open manifold on a divided housing. He later had the divider welded in flush with the flange, but the gate passages were still joined. Doing this helped drop spool by maybe 400rpms. This was with a 2 liter, HKS 280s, ported head/big valves, JMF drag SMIM, huge 4" thick FMIC, and the smallest T4 hotside that was available at the time (.83 i think).

 

[whitedawg]

I'm lost steve??? It looks like the bottom is elapsed time and the left side is boost but there is no rpm indicator that I can see

RPM is the first graph (red line).

 

[rrussell]

There are two different turbine wheels offered for the 366. And before you claim that the specs are close enough for the difference in spool to be negligible, the hx40 10blade turbine wheel spools a quite a bit faster than an hx40 12 blade in the same housing. Yet the diameters and contour is identical.

There's a .76 a/r and a .85 a/r t3 boltpattern turbine housing available as well.

What are you saying??? I stated that my hot side is a t3 .70 A/R V band out.

Its not a .76 or a .75

 

[Slippi84]

What are you saying??? I stated that my hot side is a t3 .70 A/R V band out.

Its not a .76 or a .75

His point was that turbo's have different a/r's even though the hotsides look the same dimension wise.

 

[dsm-onster]

^^^Yes. I'm saying that many of the guys running BW turbos don't have the smaller .70 a/r turbine housing. You do. So make your suggestion acknowledging this plus your particular turbine wheel trim. I can get a 16g to spool like a 14b, but I'm sure you'd like to know that I use a 6cm^2 14b turbine housing to do that. And my old garrett 60-1 spooled faster than the FP version (FP red). But I'm sure you'd like to know that I used a bolton BEP housing and a t31 turbine wheel instead of the FPred's CLIPPED td06h turbine wheel and 8cm^2 turbine housing.

2) Will my DSMAP datalog be legit enough? Its in a ms-xls form no "etch-a-sketch" cool graph lines?

Is this going to be enough for you guys?

Stop with your dsmap vag cramps . NO ONE IS QUESTIONING YOUR TUNING SOLUTION! Just relax, find your logs, and post them. No one's here to bust a cap in your internet personality. ( I wonder how some would act face to face. Or even just over the phone.) Thank you for posting your results if I don't get a chance to after you do.




. . . That s366 is laggy! But I'll bet she's hauling the mail once it spools. But not a terrible spool speed considering the size of the turbine housing.

It is truely a shame that this could have been a great discussion on turbine work and blade shape. A couple of pictures of wheels and a few logs and we could have had what this forum really has been about the last few years. . . . Oh well, one small failure doesn't negate the years of data and affirmative inference collected here.

 

[Steve93Talon]

The log Steve posted makes the S366 look like a lag monster. Nearly the entire graph was at 6400 rpm or higher

When you're revving out to 9k+, your graph tends to stay at 6400+

. . . That s366 is laggy! But I'll bet she's hauling the mail once it spools. But not a terrible spool speed considering the size of the turbine housing.

It definitely pulled like a freight train up top, hopefully he'll get the car back together this year.

Here's what he's been up to with it. The car's basically down to a bare shell right now waiting for paint.

Valujet - 2009

 

[diambo4life]

Here's a screenshot of a pull on Carl's S366 setup. Again, he was running the HKS cast T4 manifold which isn't truly divided since it shares a single gate passage with both pairs of runners. It also is cast with the divider not flush with the flange, so it's literally like running an open manifold on a divided housing. He later had the divider welded in flush with the flange, but the gate passages were still joined. Doing this helped drop spool by maybe 400rpms. This was with a 2 liter, HKS 280s, ported head/big valves, JMF drag SMIM, huge 4" thick FMIC, and the smallest T4 hotside that was available at the time (.83 i think).

Wow...that's a little laggy...no? Did you guys eventually try a smaller T4 housing? Here's a comparison to my old PT67 with a "P" trim TW and a T4 0.68a/r turbine housing. Froze the log at 25psi just for comparison sakes and also in 3rd gear. 2.0L.

 

[bastard dsm]

hey guys just did some runs on our galant with a s366 .70ar t3 turbo on a 2.3 stroker.
full boost right before 5k and it made 376hp at 13psi and 475hp at 20psi with 13deg of timing
and 80% throttle. had some problems, but now they are fixed......we will go to the dyno again
and at full throttle and 19-22deg of timing at 24psi.

 

[The Shodan]

thts nice
i wonder wht will this t4 .88 do instead

It will be a bit slower than any S362, and compared to the .84A/R T4 divided, there is very little difference. You will still need the unique V-band downpipe for that flange. It is not a standard 3". more like 3.25".

here is a vid of our 2.3 stroker T4 .84 Divided on a 9.0:1 272 cam. Full pressure of 21psi was reached by about 4500-4600 or so, but AFRs were damn near 9.8:1 due to Methonal.

This was at Speed Industry's "Heartbreaker" Mustang dyno.

Here's a taste:

Client Videos :: 100_1671.flv video by theshodan - Photobucket

Client Videos :: 100_1673.flv video by theshodan - Photobucket

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[rrussell]

I have one log posted on the DSMAP forum (tunning section) if anyone wants to see an BW366 2nd through 3rd gear pull.

Under "2nd thru 3rd gear pull logg"

DS-MAP.NET • View topic - 2nd thru 3rd gear pull logg

Keep in mind this is on a stock intake with stock cams.

 

[me612]

I'm over on the Link forums. My name over there is jkodis. I have quite a few logs posted over there. Don't really feel like taking a screen shot right now. On the street I usually see 35psi by 5200rpm. This is on a 2.0L, with 272 cams, JMF Race SMIM, Evo8 MAS, S362 .70ar. There are so many variables that can affect spool. I'm happy with the spool though, considering it's still a 2.0L. To the one who mentioned it's a waste, with only 1.5 - 2k of power band, ha. What are you shifting at, 7k? I have a nice 3k rpm power band at 35psi, which is pretty damn good considering the amount of power it's putting down in that power band. I think the 362 is a heck of a good higher power street turbo. Somewhat comparible to a 35R. Next year I'm considering going 2.3 to try and get 35psi under 5k.

Usually I don't believe half the spool numbers I hear on some forums. People tend to exagurate quite often. Then people find themselves with an HX40 and complaining that it doesn't spool as fast as their 16g did, and everyone said it would.

 

[andy4g63]

^^^ Very good points, man.

 

[BrokenTsi]

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?

My daily driven 10 sec car sees full boost around 5500-6000 and I rev to 9k. Perfectly streetable IMO. Doesnt take long at all. This is on a t67. The timeslip in my profile was done on a 30r btw.

Who would only want to shift at 7k? I used to rev past that on a 14b.......

If you want instant torque, buy a V8.

 

[Defiant]

Thread scrapped due to shit content.