BNR S3

[levon.mark]

update: went to a 5858. Built engine.

I know this is nothing new, but I thought id post up my turbo swap and the results. Be aware I am in Alaska and I only have access to 90oct. (or Sunoco race gas if I want to shell out $10 a gallon); But for now I'll be running 90oct. and meth.

My goals are around 360whp/whtq if possible to achieve safely.

Power Mod list (IIRC) & rest of mods on my mods in signature:

- V3 Accessport
- Autotechs
- HTP 3.5"
- NGK Iridium IX Plugs,
-Meth w/ 5 gallon tank (probably run 100% with a d010-d012),
- JBR EGR Delete
- CX Racing Front Mount
- 3" Downpipe,
- Self PNP Manifold
- CPE Safeseals
- Custom Aluminum Vented Catch Can (same as Kosmics)
- Wotbox
- Custom 3" Exhaust

Whats coming in:
- BNR S3
- Grimspeed EBCS
- 3 Bar Map w/ Harness

Ordered everything on 12/10/14 from Revolution Performance Motorsports, because my turbo is smoking bad. However there is a 1.5- 2 week back order on the turbos, so hopefully it comes in soon.

I'll post up the swap, vd's, videos, and possibly a mustang dyno run this spring on here.

[keychain12]

Stoked to see this build

[levon.mark]

Yup, I almost just changed my order with a GT3076 yesterday, but realized how broke I am lol, so I didn't. Anyways RPM and I have been communicating and he's going to try to get me my turbo as fast as possible. I'll give him call Friday to see if BNR have the parts they needs yet to build the batch.

[DocBrown]

Subbed for more zoom

[pyro]

Originally Posted by levon.mark Yup, I almost just changed my order with a GT3076 yesterday, but realized how broke I am lol, so I didn't. Anyways RPM and I have been communicating and he's going to try to get me my turbo as fast as possible. I'll give him call Friday to see if BNR have the parts they needs yet to build the batch.

Why 3076?

[MileHigh303]

i just did this upgrade on my Gen 2 a couple months ago and can't be any happier! Keep us posted I do have a step by step instruction thanks to @JgamB; so if you want me to shoot that over to you let me know.

[AlsMS6]

That bnr3 is looking more and more tempting with every build. Can't wait to see results!

[MileHigh303]

Originally Posted by AlsMS6 That bnr3 is looking more and more tempting with every build. Can't wait to see results!

Great deal on the package with RPM right now as well. Wish I could've gotten that deal =(

[AlsMS6]

Originally Posted by MileHigh303 Great deal on the package with RPM right now as well. Wish I could've gotten that deal =(

No kidding. im very very tempted to pull that trigger. Hopefully still on after tax season!

[joeyspeed3]

@MileHigh303; how's the fitment on that 3.5 htp intake man, did you have buy a battery tray or just relocating the ecu will do.

[MileHigh303]

Originally Posted by joeyspeed3 @MileHigh303; how's the fitment on that 3.5 htp intake man, did you have buy a battery tray or just relocating the ecu will do.

I first bought the @JgamB; fabbed ecu relocation tray (which works great by the way) but it didn't fit with my 3.5 in htp whale penis. It fits the JBR 3.5 though so I guess it depends which 3.5 you are going to get. I searched around and saw some people who just mounted the ecu to the front of their stock battery tray. My whale penis was rubbing on the side of my stock battery box though so I just ended up investing a little bit of dough for the JBR 51r battery tray and it worked like a charm.

[boostdmazda3]

The BNR dosn't really compliment the 6 as much as the 3. My friend has a speed6 with a bnr and on e85.

[AlsMS6]

Originally Posted by boostdmazda3 The BNR dosn't really compliment the 6 as much as the 3. My friend has a speed6 with a bnr and on e85.

Why not?

[Lbspeed]

Originally Posted by AlsMS6 Why not?

I'm not an expert but the with the added drivetrain loss on a speed6 it's just more efficient to go bigger in comparison to a speed3. It's the nature of the bnr, it's size, rpm range, power delivery, etc.

[levon.mark]

Originally Posted by pyro Why 3076?

A Gt3076 seems easier on the turbo itself and doesn't require as much timing to max out the stock block (around 380whp on a speed6). However I'm lowkey glad I did not switch to a 76, because I autox a lot every summer -more than I drag race- and it would suck.

Originally Posted by Lbspeed I'm not an expert but the with the added drivetrain loss on a speed6 it's just more efficient to go bigger in comparison to a speed3. It's the nature of the bnr, it's size, rpm range, power delivery, etc.

Pretty much. I just cannot afford it. I didn't just order the turbo and boost controller and map sensor. I ordered some new meth stuff, and I am finishing up my catch can. I'll post pictures soon. I also have to pay for a new tune.

[AlsMS6]

Originally Posted by Lbspeed I'm not an expert but the with the added drivetrain loss on a speed6 it's just more efficient to go bigger in comparison to a speed3. It's the nature of the bnr, it's size, rpm range, power delivery, etc.

Ooh OK. Hmm so I should be looking bigger? I want to go with the rpm deal as I thought that's as big as I safely could go on a stock block. It's my daily I just want a little more power to play with.

[levon.mark]

Originally Posted by AlsMS6 Ooh OK. Hmm so I should be looking bigger? I want to go with the rpm deal as I thought that's as big as I safely could go on a stock block. It's my daily I just want a little more power to play with.

What are your power goals? You can safely achieve up to around 380whp/whtq with the right mods, fueling, and preventive maintenance.

However 380whp on a bnr s3 on stock block is pushing it. Thats why I say a GT3076 is a good turbo for a daily car. Its even nice to have later spool up for good gas mileage.

[Lbspeed]

That RPM is a damn good deal tho I'll say that. It's hard to pass up.

[JgamB]

Keep in mind the motor isn't doing less work because your AWHP is suffering from parasitic loss. Conventional wisdom is 360-380 on a speed3 after ~10% DTL is a "safe" zone, and also factor in the spool characteristics of the BNR are going to be neutered for rod safety. Once you start pushing more HP, you're producing a lot of heat and threatening the ring lands.

There are benefits to both methods, and risks involved with asking for more. You'll certainly find outliers that make 400+ and have a long healthy engine life, and you'll also see conservative numbers that result in premature failure. Simply going bigger on a turbo, even if you stay IWG to reduce cost with a GTX3076r, doesn't mean you aren't increasing the potential for engine damage to produce more power.

Food for thought. Shit gets expensive fast when things do cooperate, and even more so when they don't.

[levon.mark]

Originally Posted by JgamB Keep in mind the motor isn't doing less work because your AWHP is suffering from parasitic loss. Conventional wisdom is 360-380 on a speed3 after ~10% DTL is a "safe" zone, and also factor in the spool characteristics of the BNR are going to be neutered for rod safety. Once you start pushing more HP, you're producing a lot of heat and threatening the ring lands. There are benefits to both methods, and risks involved with asking for more. You'll certainly find outliers that make 400+ and have a long healthy engine life, and you'll also see conservative numbers that result in premature failure. Simply going bigger on a turbo, even if you stay IWG to reduce cost with a GTX3076r, doesn't mean you aren't increasing the potential for engine damage to produce more power. Food for thought. Shit gets expensive fast when things do cooperate, and even more so when they don't.

Exactly. Why I lowkey wanted a gt3076.

[AlsMS6]

Originally Posted by levon.mark What are your power goals? You can safely achieve up to around 380whp/whtq with the right mods, fueling, and preventive maintenance. However 380whp on a bnr s3 on stock block is pushing it. Thats why I say a GT3076 is a good turbo for a daily car. Its even nice to have later spool up for good gas mileage.

The car is a around town car and hardly sees highway but gets drag racing 3 or 4 times a year.

[boostdmazda3]

Thats correct is because of the size and drivetrain loss of the 6. On e85 the 3 will make about 380whp. However, the 6 will prob make 30whp less. I have a bnr as does my friend with a 6 and there both e tuned.

[levon.mark]

Originally Posted by AlsMS6 The car is a around town car and hardly sees highway but gets drag racing 3 or 4 times a year.

Id go with the gt3076. If you want something that spools up faster go with the gtx3071. OR spend $$$$$$$$$$ and go precision kit for later spool.

However lets see how well I preform on this turbo. The turbo should be here around next week. Thank god because my car is down. RPM is taking care of me.

[AlsMS6]

Originally Posted by levon.mark Id go with the gt3076. If you want something that spools up faster go with the gtx3071. OR spend $$$$$$$$$$ and go precision. However lets see how well I preform on this turbo. The turbo should be here around next week. Thank god because my car is down. RPM is taking care of me.

Let's see then. I should mention e85 is easily accessible where I live soooooo bnr3 plus corn just as good as gt3076??

[boostdmazda3]

Originally Posted by AlsMS6 Let's see then. I should mention e85 is easily accessible where I live soooooo bnr3 plus corn just as good as gt3076??

I have another friend with a gt3076. On 91 its makes about as much as my bnr e85. About 370whp. Both e tuned of course.

[AlsMS6]

Originally Posted by boostdmazda3 I have another friend with a gt3076. On 91 its makes about as much as my bnr e85. About 370whp. Both e tuned of course.

Im also on a strict budget. The rpm deal is really right on the money.

[boostdmazda3]

Originally Posted by AlsMS6 Im also on a strict budget. The rpm deal is really right on the money.

You need an exhaust manifold with the 3076. BNR you can use the stocker. You just need to get minor stuff like ebc,3 bar map,3 inch intake.

[joeyspeed3]

Originally Posted by boostdmazda3 You need an exhaust manifold with the 3076. BNR you can use the stocker. You just need to get minor stuff like ebc,3 bar map,3 inch intake.

You dont need an exhaust manifold for the 3076, you have the atp bolt on kit which uses the stock flange

[boostdmazda3]

Originally Posted by joeyspeed3 You dont need an exhaust manifold for the 3076, you have the atp bolt on kit which uses the stock flange

Thanks for the info.

[levon.mark]

Yup you can pick up any of these garret turbos listed by myself in these posts with a mzr flange and kit that bolts up to our cars. ATP makes them. They're on pretty much every website.

[boostdmazda3]

I guess the bottom line is the gt30's are much more expensive and it depends on your power goals.

[joeyspeed3]

That's why i went with the bnr, is cheaper and since my power goal is to be around 380 and staying on stock block it's the perfect turbo for me. Now if you're planning on building your block and go pass 400 hp then you might want to invest in a bigger turbo. I made 385 uncorrected on a mustang dyno and im super happy with the way the car drives.

[levon.mark]

Originally Posted by joeyspeed3 That's why i went with the bnr, is cheaper and since my power goal is to be around 380 and staying on stock block it's the perfect turbo for me. Now if you're planning on building your block and go pass 400 hp then you might want to invest in a bigger turbo. I made 385 uncorrected on a mustang dyno and im super happy with the way the car drives.

That's not gunna happen on a speed6 lol.

[boostdmazda3]

Yeah I dont think 400whp is possible on a BNR speed6 even with meth and e85.

[joeyspeed3]

I dont know about 400 but 380 is definitely posible

[IlleztImportz]

Subbed to see how things work. I too got a speed6, long story short, motors getting rebuilt (88mm pistons) should be done here in about a week. Next major purchase will be a bt. I'm kicking around a 3071 or bnrs3. Looking for around high 300's and have access to e85 but really dont want to have to deal with meth (also cause I don't know much about it yet). Hopefully you get yours running before me in Feb, you might be my deciding factor haha.

[levon.mark]

Originally Posted by boostdmazda3 Yeah I dont think 400whp is possible on a BNR speed6 even with meth and e85.

Mazdaspeed6 BNR S3 dyno 400/410

[biggman026]

You'll be really happy with a BNR S3. It barely spools slower than the k04, and with some E85 you can get some real power out of it. It's the turbo this car should have come with from the factory.

[boostdmazda3]

Originally Posted by biggman026 You'll be really happy with a BNR S3. It barely spools slower than the k04, and with some E85 you can get some real power out of it. It's the turbo this car should have come with from the factory.

That would be awesome if it came with the beaner from the factory!

Originally Posted by levon.mark Mazdaspeed6 BNR S3 dyno 400/410

Not to talk shit but that was on the dynojet correction factor on VD.

[biggman026]

Originally Posted by boostdmazda3 Not to talk shit but that was on the dynojet correction factor on VD.

Actually it was a real dyno run, not a vd...