BNR S4 V2

[BuddySpeed3]

Hey does anyone have any details about the newest bnr s4 revision that is coming out soon?

[pwdunmore]

Originally Posted by BuddySpeed3 Hey does anyone have any details about the newest bnr s4 revision that is coming out soon?

Can you link to the info?

[Ayerspeed]

I saw a teaser pic of a new BNR that was like more in line with a GT35 frame turbo. He said he's not calling it an S5 because it differs from all his other so much. That what you're thinking about?

[BuddySpeed3]

Originally Posted by pwdunmore Can you link to the info?

It was mentioned in this thread BNR S3 or BNR S4 and when I asked edgeautosport.com about it, they mentioned that a new one should be out soon.

[Ayerspeed]

Copied from the BNR Facebook page:

Mazdaspeed 3 and 6 owners will have a new product from BNR soon after the new year! We are soon to release our gt35 series with a .82 a/r exhaust housing for 44mm turbosmart external wastegate. The compressor housing is a T04E with 4" inlet 2.5" outlet with antisurge! The compressor wheel is custom to BNR and is 62mm on the inducer and 88mm on the exducer. We expect around 70-75 lbs per min at a medium pressure ratio 28-35 psi. Most OE hardware will bolt on (oil feed, water lines ect. You can keep your expensive stock flange custom manifolds and down pipes and save lots of money instead of replacing the whole system!

[BuddySpeed3]

Originally Posted by Ayerspeed I saw a teaser pic of a new BNR that was like more in line with a GT35 frame turbo. He said he's not calling it an S5 because it differs from all his other so much. That what you're thinking about?

I'm not entirely sure. I actually just got Bryan's email back. He said the new S4 has a compressor housing update. 3.5" inlet with antisurge larger ar. So much for buying an HTP 3" intake with 3" coupler I will now have to buy a 3.5" coupler.

I'm not too sure if the previous version is still available. Edgeautosport said I would have to wait for the new one which should be about 1 month. I'm hoping the HTP 3" intake coupled to the 3.5" inlet doesn't cause an issue in terms of spool and overall performance. I doubt it will, especially since my goal is below 400 whp.

Hopefully someone else can chime in as I wait for Bryan to respond to a few other questions that I asked him.

Originally Posted by Ayerspeed Copied from the BNR Facebook page: Mazdaspeed 3 and 6 owners will have a new product from BNR soon after the new year! We are soon to release our gt35 series with a .82 a/r exhaust housing for 44mm turbosmart external wastegate. The compressor housing is a T04E with 4" inlet 2.5" outlet with antisurge! The compressor wheel is custom to BNR and is 62mm on the inducer and 88mm on the exducer. We expect around 70-75 lbs per min at a medium pressure ratio 28-35 psi. Most OE hardware will bolt on (oil feed, water lines ect. You can keep your expensive stock flange custom manifolds and down pipes and save lots of money instead of replacing the whole system!

Hmmm is that maybe a completely different turbo?

[MS3Shadow]

Originally Posted by BuddySpeed3 I'm not entirely sure. I actually just got Bryan's email back. He said the new S4 has a compressor housing update. 3.5" inlet with antisurge larger ar. So much for buying an HTP 3" intake with 3" coupler I will now have to buy a 3.5" coupler. I'm not too sure if the previous version is still available. Edgeautosport said I would have to wait for the new one which should be about 1 month. I'm hoping the HTP 3" intake coupled to the 3.5" inlet doesn't cause an issue in terms of spool and overall performance. I doubt it will, especially since my goal is below 400 whp. Hopefully someone else can chime in as I wait for Bryan to respond to a few other questions that I asked him. Hmmm is that maybe a completely different turbo?

Yes that's an different turbo.

There's an revision to the current S4. It'll be with an 3.5" inlet instead of the current 3" inlet.

Sent from my Pixel XL

[IlleztImportz]

I sent Bryan a message earlier this week and never got a response cause I was told they were shipping after Christmas and now I was told another 2 weeks..

I thought I read somewhere in addition to the larger compressor housing inlet, that it wasn't going to taper down like the 1st version was, could be wrong.

[MS3Shadow]

Originally Posted by IlleztImportz I sent Bryan a message earlier this week and never got a response cause I was told they were shipping after Christmas and now I was told another 2 weeks.. I thought I read somewhere in addition to the larger compressor housing inlet, that it wasn't going to taper down like the 1st version was, could be wrong.

That's correct. The 1st version did have an taper.



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[impossible]

I've talked to Bryan directly and the 35-style frame turbo is known as the S6 and has a EWG turbine housing with a 44mm outlet for a gate to be mounted on similar to the ATP EWG housings but it's true .82 a/r and again larger wastegate orifice. It's not for stock block peeps so don't bother unless you have k1 rods minimum and are revving past 6700rpm. Also I doubt it will work with a Mazdaspeed 6 just looking at the location of the gate and fact that the PTO has the coolant inlet where the wastegate would be located on the bottom of the turbine housing. The S5 is a turbo a friend of mine has been testing for Bryan for some time and it's just a big wheel S4 with ported turbine housing and bigger comp wheel and comp inlet, same otherwise.

[impossible]

deleted comment

[Djohns]

Originally Posted by BuddySpeed3 I'm not entirely sure. I actually just got Bryan's email back. He said the new S4 has a compressor housing update. 3.5" inlet with antisurge larger ar. So much for buying an HTP 3" intake with 3" coupler I will now have to buy a 3.5" coupler. I'm not too sure if the previous version is still available. Edgeautosport said I would have to wait for the new one which should be about 1 month. I'm hoping the HTP 3" intake coupled to the 3.5" inlet doesn't cause an issue in terms of spool and overall performance. I doubt it will, especially since my goal is below 400 whp. Hopefully someone else can chime in as I wait for Bryan to respond to a few other questions that I asked him. Hmmm is that maybe a completely different turbo?

If you're worried about the spool because of that, buy the new one and I'll trade you my brand new unopened BNR s4 with 3" inlet. Would work better for me as well since I run a 3.5" intake.

[BuddySpeed3]

Originally Posted by Djohns If you're worried about the spool because of that, buy the new one and I'll trade you my brand new unopened BNR s4 with 3" inlet. Would work better for me as well since I run a 3.5" intake.

Thanks for the offer but I'll most likely end up going with the new version along with a 3.5" to 3" silicone reducer I only wanna spend my money once this time around. I'm on my third intake for crying out loud! lol

[Thor Hammer]

Originally Posted by MS3Shadow Yes that's an different turbo. There's an revision to the current S4. It'll be with an 3.5" inlet instead of the current 3" inlet. Sent from my Pixel XL

This ^

I spoke with RPM yesterday as my turbo is smoking at random. He talked me into the revised S4. As MS3Shadow mentioned it will have a 3.5" inlet. We had a bad phone connection but the jist I got is AR is revised and it should spool up quicker.

What TIP and intake would you guys run with this turbo? I currently have a CPE to stock turbo TIP and AEM CAI. Could I adapt my CAI to a larger TIP and run that? Or would I get better performance running a whole new intake? Like a JBR tru 3.5 SRI?

[MS3Shadow]

Originally Posted by Thor Hammer This ^ I spoke with RPM yesterday as my turbo is smoking at random. He talked me into the revised S4. As MS3Shadow mentioned it will have a 3.5" inlet. We had a bad phone connection but the jist I got is AR is revised and it should spool up quicker. What TIP and intake would you guys run with this turbo? I currently have a CPE to stock turbo TIP and AEM CAI. Could I adapt my CAI to a larger TIP and run that? Or would I get better performance running a whole new intake? Like a JBR tru 3.5 SRI?

Yeah. Just run the 3.5" JBR intake.

Sent from my Pixel XL

[Djohns]

I really want this revised s4. It's slightly annoying that I bought mine, haven't even opened it and boom now there's a revised version with a 3.5" inlet and that's what I wanted. Go figure, maybe someone with a 3" intake will wanna trade the new one for mine.

Originally Posted by MS3Shadow Yeah. Just run the 3.5" HTP intake. Sent from my Pixel XL

Fixed.

[MS3Shadow]

Originally Posted by Djohns I really want this revised s4. It's slightly annoying that I bought mine, haven't even opened it and boom now there's a revised version with a 3.5" inlet and that's what I wanted. Go figure, maybe someone with a 3" intake will wanna trade the new one for mine. Fixed.

But it's not really an 3.5" intake, it's around 3.25" ID. And people have some issues with the honeycomb air straighter. You have to ask to to get the regular one.


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[WetzMS3]

HTP 3.5" intake. Avoid the AIDS.

[Djohns]

Originally Posted by MS3Shadow But it's not really an 3.5" intake, it's around 3.25" ID. And people have some issues with the honeycomb air straighter. You have to ask to to get the regular one. Sent from my Pixel XL

What issues do people have? I don't have any issues with mine, nor have I heard of people having issues?

[IlleztImportz]

Now now, let's not make this into an intake thread..

Seems the bnrs4 v2 keeps getting pushed back as far as shipping out goes. I was told after Christmas, that time came I was told two more weeks. I was just told again this morning it'll be the end of the month! I hate waiting, was almost tempted to just throw down more moniez for a 3076, but broke..

[MoMS3]

Hey as long as I has options of S4v2 and S5 and this GT35 frame behemoth to choose from come summertime, I'll be happy as a Hindu cow. Let's hope my new K04 doesn't decide it wants to be another warranty replacement before that...

[PearlySpeed]

Originally Posted by Djohns I really want this revised s4. It's slightly annoying that I bought mine, haven't even opened it and boom now there's a revised version with a 3.5" inlet and that's what I wanted. Go figure, maybe someone with a 3" intake will wanna trade the new one for mine. Fixed.

You and me both, I got my S4 at the end of Nov and had no idea about an updated version being released. Here we are, the end of Jan and my car is still apart in the garage and S4 still boxed 😞. I wants V2!

[Djohns]

Originally Posted by PearlySpeed You and me both, I got my S4 at the end of Nov and had no idea about an updated version being released. Here we are, the end of Jan and my car is still apart in the garage and S4 still boxed 😞. I wants V2!

I know! I tried emailing BNR to see if maybe they would offer a trade in or even send the v1 to be modified but got no response.

[Djohns]

Emailed Justin about a touch up tune and figured I'd ask about the v2, this was his response.

[MS3Shadow]

Yeah, no reason to sell or return them to just get an 3.5in inlet instead of the v1 3.0in inlet.

Sent from my Pixel XL

[BLKspd5]

I emailed Bryan about this on 1/4/17. Sorry I'm late to answer, I just saw this post. This is the response I got from him.

"Improving the compressor housing. Casting the extension in and it will look like a factory unit instead of having the offset outlet with the customizing. It will have antisurge port as well."

[Djohns]

Only cool kids surge their turbo.

[MoMS3]

Are we talking a machined/cast in antisurge or the half-ass "drilled holes" around inlet approach?

[Blk_pu]

It looks like its a proper cast / machined anti surge. Found this photo on their facebook page, the top is the revised s4 compressor cover according to BNR's comment, and the bottom is the s5 cover.
I picked up an s4 and it has just been sitting since its too cold for an install. I am really hoping that we can simply unbolt the old compressor housing and bolt the anti surge cover on.

[Blk_pu]

@Djohnsso they replied to their post..... he said to wait about 2 or 3 months to fill preorders! Sounds like he will be selling the anti surge covers if you ask. So much boner...

[Djohns]

Originally Posted by Blk_pu @Djohnsso they replied to their post..... he said to wait about 2 or 3 months to fill preorders! Sounds like he will be selling the anti surge covers if you ask. So much boner...

Oh sweet! Any idea on pricing?

[Blk_pu]

I'm hoping for under 200$, the median price for compressor covers seems to be 150$

[g00s3y]

I want the S5 EWG setup, it shall go perfectly with the built motor.

[Mazdazilla6]

Originally Posted by g00s3y I want the S5 EWG setup, it shall go perfectly with the built motor.

If you're gonna spend all that money on a built engine why stay on the shitty stock flange?

[g00s3y]

Originally Posted by Mazdazilla6 If you're gonna spend all that money on a built engine why stay on the shitty stock flange?

Not going for crazy numbers. Only Manley H beams and sp63 4032 pistons are upgraded, everything else engine wise will be OEM. It will still be my daily, and I don't have the extra cash to go change up the whole setup.

I'd love to go tial hot side, twin scroll, etc. But BNR is in my price range, and as much as I love the s3 (and will even more on a built engine with meth), I know I'll eventually want more. Plus loud racecar noises, and the BNR setup will almost definitely be cheaper than a GT/GTX series equivalent EWG setup, especially adding in the cost of a new DP and manifold.

Also, if I do have the money, the beautiful fender exit dump tubes you had. I might be stealing that idea lol.

[PearlySpeed]

How far along is your car? I'm assembling my engine this week, finally got my new block. I'm doing an S4 build with ewg, shitty stock flange because I am out of money to upgrade the fuel system and too weary use methanol for fueling headroom. If I had the money to upgrade to port injection, I woulda went with a different hot side manifold setup, but were talking another $ 3-5k between manifolds, fuel and turbo

Originally Posted by g00s3y Not going for crazy numbers. Only Manley H beams and sp63 4032 pistons are upgraded, everything else engine wise will be OEM. It will still be my daily, and I don't have the extra cash to go change up the whole setup. I'd love to go tial hot side, twin scroll, etc. But BNR is in my price range, and as much as I love the s3 (and will even more on a built engine with meth), I know I'll eventually want more. Plus loud racecar noises, and the BNR setup will almost definitely be cheaper than a GT/GTX series equivalent EWG setup, especially adding in the cost of a new DP and manifold. Also, if I do have the money, the beautiful fender exit dump tubes you had. I might be stealing that idea lol.

How far along is your car? I'm assembling my engine this week, finally got my new block. I'm doing an S4 build with ewg, shitty stock flange because I am out of money to upgrade the fuel system and too weary use methanol for fueling headroom. If I had the money to upgrade to port injection, I woulda went with a different hot side manifold setup, but were talking another $ 3-5k between manifolds, fuel and turbo

[g00s3y]

It's been a long road. Engine blew a hole through the front and back about 4 months ago. Bought a long block a couple months ago, got it all taken apart, cylinders scratched. Figure ok, can bore .020 over, 88mm pistons, all good. So take it to a machine shop last week, guy tells me it's not just scratched, but possibly a hairline crack in just one cylinder. So waste of a couple months and good amount of money.

On the good side, found a short block on ebay for $300 couple days ago in Pompano Beach. My girl was already heading over there yesterday with her friend, so luckily she was able to stop by and pick that up. Already got it back and honed and all looks good for now.

Just need to take it to a shop tomorrow and have everything checked out with proper tools, just to be sure everything is good to go. After confirmation of that, SP63 4032 pistons will be ordered, then when tax return comes, engine/gasket kit and act clutch/flywheel kit will be purchased.

[PearlySpeed]

Do you have a shop? I've been using Lamont's off Hanson in fort Myers, they've been great. I've got a set of 88mm Manley 2618 Pistons sitting in my garage, just need new rings as I began assembling and noticed some cylinder distortion in cyl 3. So I picked up a new block from Mazda and went with stock bore manleys... I was gonna save them for my next rebuild but not sure., let me know how the 4032 work out. I was up in the air for the longest time between the two compounds, but have heard the Manley are one of the better 2618 for daily and wanted the extra piece of mind. Maybe we will run into eachother sometime. Mines been apart since Oct and I'm dying to get it done.

[Atticaz]

FYI. S4 V2 info up of BNR's FB page.

".70 ar 3.5" inlet with anti surge port on v2 vs. .60 ar 3" inlet on v1. V2 should spool faster and have improved mid range along with a louder sound. Same max output." -BNR

[KiwiFlavor]

Originally Posted by Atticaz FYI. S4 V2 info up of BNR's FB page. ".70 ar 3.5" inlet with anti surge port on v2 vs. .60 ar 3" inlet on v1. V2 should spool faster and have improved mid range along with a louder sound. Same max output." -BNR

The ricer in me approves of this louder sound... Still can't make up my mind if I should go with BNR or GTX series when the time comes.