GT35R vs BEP S(258-366)

[THE_ARTIST_]

i may be in th market for a new turbo soon and i wanted to get opinions on these turbos (mainly the BEP since there is not much on it) i want my car capable of 600 hp (this is in the distant future) but i want somthing different from the 35R and i figure the BEP could give me what i want and still be a little different from all the 35R's.

 

[IPT]

The BW S362 is a a very close match as far as wheel sizes go. It has made 680whp on an SRT4. There have been some hondas that went from a GT35R to S366 and they spooled the same, but the S366 made way more power. IT was making right around 700whp. they could not get an accuate measurement because they could not get it to stay on the dyno.

 

[prostreetdsmx1]

hell our EVO with an S256 has been making more torque than the 35R's have. I would agree with IPT about maybe looking into a S3xx series to really push it but I have used the S258 aswell and damn.... talk about a kick in the ass!

 

[Steve93Talon]

hell our EVO with an S256 has been making more torque than the 35R's have. I would agree with IPT about maybe looking into a S3xx series to really push it but I have used the S258 aswell and damn.... talk about a kick in the ass!

I second that, the 258 hits hard. On paper, it's the closest flowing wheel to the 35r, and my 258 in the big .70 T3 hotside spools the same as a friend's 35r in a much smaller FP bolt-on housing. After riding in my car, he decided to sell his whole setup and get a 362.

 

[THE_ARTIST_]

since its better (IMO) than the 35R why is it not as popular?

 

[Savage Talon]

Because it's new and not BB. I have a BW362et in a bolt on hsg for now and it barely fits in the car. I had to dent the water pipe to get it to bolt up. I hope it will fit better when I go to a t3 setup in the future. 8" comp hsg, 4" inlet, 2.5" outlet is a big turbo.

 

[prostreetdsmx1]

as a shop owner I can honestly tell you that more than half of my customers that purchase 35R's do so against my advice and simply because it's become somewhat "cool" to have one.

I had an EVO IX customer that insisted on a 35R, I told him it didn't fit into his needs and wants aside from the fact that it was a 35R. We built it, made 540awhp and he hated it! His 2.0 couldn't spool it to enjoy. He drove a ET50 (S256) car we built and he was blown away at the response and mid range. They hit like no other.

35R is a good turbo but needs to be used when Lag comes second to horespower. If you have a 2.3 or 2.4 then it's awesome because of how it comes on but unless you have a 2.0 that can rev to hell and back I don't like it for a 2.0.

 

[sniperelite]

but how would this turbo compare to the new 3582hta that is supposed to have amazing spooling time and midrange power

 

[IPT]

but how would this turbo compare to the new 3582hta that is supposed to have amazing spooling time and midrange power

Well the BW are alot CHEAPER than the HTA and they are not a hybrid so if it comes time to rebuild it there are more choices to get it done. Also and I am sure Martin will back me up on this... THE BW seem to make more torque then many of the Garret units.

 

[prostreetdsmx1]

THE BW seem to make more torque then many of the Garret units.

sure do

 

[blcknspo0ln]

From all of the feedback that I've seen, BOLT ON S258ET turbos are making the same type of power as a T3 .63AR GT35R, how come I find that so hard to believe?

 

[THE_ARTIST_]

cool thanks for the input, i figured the BW/BEP were on the same level as the garrets (if not a higher level). now which to choose from...

 

[blcknspo0ln]

From all of the feedback that I've seen, BOLT ON S258ET turbos are making the same type of power as a T3 .63AR GT35R, how come I find that so hard to believe?

Anyone have an answer to this? or am I comparing apples to oranges? I know steve talon was making good power on a T3 .70AR S256, but what about BEP power?

 

[Steve93Talon]

Anyone have an answer to this? or am I comparing apples to oranges? I know steve talon was making good power on a T3 .70AR S256, but what about BEP power?

MY S256 was in the bolt-on housing, the S258 on the new car is in the .70 T3. Both make great power, the 258 spools a bit later and makes more up top, as expected considering the larger compressor wheel and hotside.

 

[2gGSX]

MY S256 was in the bolt-on housing, the S258 on the new car is in the .70 T3. Both make great power, the 258 spools a bit later and makes more up top, as expected considering the larger compressor wheel and hotside.

Both the 256 and 258 can have the larger hot side wheel.

 

[Steve93Talon]

Both the 256 and 258 can have the larger hot side wheel.

By "hotside", I was referring to the turbine housing. Both of my turbos have had the larger turbine wheel.

 

[Boosted98gsx]

I would STRONGLY recommend the 35R HTA in an .82 A/R turbine. Full boost at 4200 (20psi) on a 2.3 liter, and insane power by the butt dyno.

 

[95GSXBLUR]

I'll be running a BOLTON S258 - I'll let you guys know how it is... It'll be a full weight E85 Car on a 2.4L

I've been warned about back pressure @ 500whp mark in the small .55 housing. We'll see how it does.

 

[me612]

I'll be running a T3 .70 S362 this summer. I personally did not want to run a BB turbo, so this one fit my needs perfectly.

 

[Supa Dexta]

And I'll have the 362 divided T4 (366 turbine housing) on a 2.3 stroker. I didn't want to jump on the 35r bandwagon, so I wanted to try this out and get some more info out on how these things perform.

 

[95GSXBLUR]

the S300 series is HUGE... we're gonna have some fast DSMs this season.. I'm excited to use this turbo...

Just put it in.. here's a couple crappy pics -

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I love how wide the compressor map is on this turbo... I'll actually be able to drive @ partial throttle! the Vtrim I was running and the H3 that I switched to both had do be driven like on /off switches... not cool, not fun. their surge line was waaaaaaaay far right.. the S256/8 is nice and wide.

 

[Supa Dexta]

What snails are those? /specs of them.

 

[95GSXBLUR]

The top one is an S258 in the bolt on fashion. 63/lbs/min on a 58mm compressor wheel ETT.

The left on is a Borg Warner H-3.. old skool 6 blade compressor that flows 54/lbs a min... it's surge line is a little to far to the right for my tastes.. It didn't allow much partial throttle @25-30 psi... it would have rather been @ 20 and stayed there.

More or less....

 

[Supa Dexta]

Cool, the 258 is 63 a min and the 362 is 65? I thought there was a bigger difference then that.

 

[95GSXBLUR]

hmmm... maybe someone could correct me on that - I've read that the 256 is 58 and the 258 is 63. on the 258's compressor map you can definitely dips into the 60s.