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06-30-2018, 11:45 AM
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(Thread Starter) |   Not Ranked : 0 score  BNR S4 on Stock Motor Roll raced a 5.0 yesterday, ended up blowing the seals on my shitty K04. So I can't drive the car until I get a new turbo. Mazda wants $1,290 for a new OEM turbo, I'm not paying that much for another K04. So I'm going big turbo and was thinking of the BNR S4, since it's the same price as an OEM new and comes with all the hardware I need. I understand it will make more power with less boost and keep pushing at higher RPMs, perfect for beating the 5.0 I was racing (it was a close race already, if I had more top end I would've had him). I'm just not sure if the stock block will be able to take it. I will have it retuned of course so perhaps I'll be good. I don't really plan on rebuilding, so I'm not sure if the S4 if worth it or if I should just get the S3. Also, I had one more question, it says it has a 3.5" inlet. Will I need to get a new intake too or will my Stage II SRI from Corksport still fit? I'm not sure how much the K04's inlet was. |
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06-30-2018, 12:37 PM
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| Not Ranked : 0 score You need a bigger inlet or at the very least a coupler to 3.5, the stock intake is 2.5-6ish. You'd be fine on stock block as long as the tuner knows what he is doing... That turbo would appreciate a new 3inch downpipe too
__________________ 2011 MS3 Tech - 2008 Jeep Grand Cherokee CRD - 1989 Crown Vic LTD LX - 1985 Lincoln Town Car Signature The key to happiness is owning a car ridiculously slower than your 'fast' car. |
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06-30-2018, 01:11 PM
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06-30-2018, 01:26 PM
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__________________ 2011 MS3 Tech - 2008 Jeep Grand Cherokee CRD - 1989 Crown Vic LTD LX - 1985 Lincoln Town Car Signature The key to happiness is owning a car ridiculously slower than your 'fast' car. |
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06-30-2018, 02:02 PM
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| Not Ranked : 0 score To me, S4 is slightly much on stock block... you'll lose a good amount of spool and not be able to fully utilize it's potential. S3 will spool faster, closer to stock, and have more topend than k04. or CS, which is what i went with, spools closer to S3 but with topend closer to S4. great stock block option, IMO.
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06-30-2018, 02:05 PM
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| Not Ranked : 0 score To @sharksinspace; point, I went s3, only because I knew I wouldn't be able to max the s4 reliably
__________________ 2011 MS3 Tech - 2008 Jeep Grand Cherokee CRD - 1989 Crown Vic LTD LX - 1985 Lincoln Town Car Signature The key to happiness is owning a car ridiculously slower than your 'fast' car. |
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06-30-2018, 04:46 PM
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(Thread Starter) | Not Ranked : 0 score Sounds like I should go for the S3 since I won't be rebuilding. Saves me some $$ too. |
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06-30-2018, 04:48 PM
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| Not Ranked : 0 score There happens to be an S3 for sale on the forums for $800 if you go VIP...
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06-30-2018, 04:57 PM
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07-01-2018, 10:28 AM
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| Not Ranked : 0 score I went with an s4 and am very pleased with my results but I do also plan on building one day.
__________________ 2010 black mica speed3 The go: Depo racing: downpipe (100 cell count), custom: FMIC. HTP: 3.5" intake, under route piping. JBR: shortshifter, RSB. Autotech: HPFP internals. Go fast bits: hybrid BPV, VMR: 18x8.5 V710s, Bridgestone: potenza re760 245/40/18, KW: v3 coilovers,SPC: camber arms, freektuned, Damond Motorsports: dual OCC, PMM, PCV plate, RMM, TMM, EGR delete, FoSt mani, Corksport: battery box(fuck this thing), injector seals, Cobb: EBCS, AP v3. AEM: methanol. Seibon: carbon fiber hood. UR: catback. Bosch: 3bar. BNR: s4, DNP: EWG manifold, Tial: 38mm mvs EWG. The show: 5% tint all around, 50% tint windshield, rally armor mudflaps, Sony XAV64BT touchscreen headunit, katskin leather interior, CPE relocation plate, Maisonvi weighted shift knob, Corksport hoodscoop, black housing headlights. Soon:built motor |
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