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BMW 3-Series (E90 E92) Forum
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first ST in aus
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09-21-2016, 07:47 AM | #1 |
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first ST in aus
cousins car me and him done most of the work on tuned our self using mhd/jb4 146mph zf 6speed built by rvo couldnt build boost off launch but would have been good for a high 9s low 10s motor poped at 32psi was making 500rwkw first ST in aus, almost ready to come out glide going in and built motor ?
just thought id share since everyone else is, also before ppl jump i owned an n54 rb turbo with my own custom TFTs |
09-21-2016, 08:08 AM | #2 |
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I remember seeing this car at springy motors. At the time was making ~400s from memory. That must be a WR trap speed at 146mph. You must have still been running 11s I guess even with a shit 60 ft with all that power.
Good luck with build. A guy in QLD is almost done with a similar top mount single turbo setup with a 2 speed powerglide. Good times ahead for the n54. Cheers for sharing |
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09-21-2016, 08:24 AM | #3 |
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So, is 32psi the max boost a N54 engine will handle on stock internal? Finally someone discovered the limit for us!
Bloody strong engine to handle that much boost, considering that stock it only boosts 8psi from factory. Awesome build btw, from memory there's another N54 running a single turbo in Aus. It was a 135i I think, but it's not setup as a drag car. Good work to have done everything yourself. More photos please |
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09-21-2016, 05:43 PM | #4 | |
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I've also read about the car going into catalytic converter protection mode and cutting fuel on the DI side having the same result as above. afaik with proper tuning the biggest issue is the open deck block and the lack of cyl support resulting in cylinders becoming oval shaped after some time. with a bad tune you can blow a motor at stock boost levels thankfully we have knock sensors which detect knock and pull timing. this is the reason why we don't see many more blown motors and pretty much the reason why the jb4 and any other piggyback work without many more engines going bang. in saying that any knock at 32psi is going to be pretty detrimental to the engine even if the sensors pick it up. not saying that the OP is bad at tuning just pointing out that you can't conclusively say that 32psi is the max based on this one engine going bang. |
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09-23-2016, 11:13 AM | #7 | ||
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09-23-2016, 06:02 PM | #8 |
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It's not exactly a myth if someone has done it? 😂
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09-26-2016, 11:07 AM | #9 | |
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09-26-2016, 11:13 AM | #10 |
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hey OP, what was 146mph? A quarter mile run or a half mile run or something else? If it was quarter mile, that is bloody impressive! What was your E.T though?
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09-26-2016, 05:42 PM | #11 | |
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09-27-2016, 06:15 AM | #12 |
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if it went 146mph that means it was making around 870hp.
that's a lot of power out of the turbo (gt35) this thing had on it and no PI? What fuel was it on? was talking to the owner of this a while back about his setup and the mani he had done. 146 seems a stretch |
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09-27-2016, 06:23 AM | #13 |
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In the video, it says it is running on regular unleaded fuel. I assume that is 98.
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10-03-2016, 08:41 PM | #14 |
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Do you have a slip for the 146mph run?
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10-03-2016, 11:42 PM | #15 |
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Maybe it was a 5 km run not a quarter mile lel
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12-04-2016, 08:57 AM | #16 |
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Couldn't make boost off the line I'll get the time slip and dyno sheet and post it up, really late reply I know but just figured out my password again lol, also car after this dyno got full e85 Pi etc so don't doubt it boys Will keep youse updated !
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12-04-2016, 11:50 PM | #17 |
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unleaded 98 on 32psi!?
No meth too??? What intercooler is it running???
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12-04-2016, 11:52 PM | #18 |
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Any head lift on 32psi? Any work done to head stud and head gasket? That's some impressive numbers aye! If you're running 32psi on unleaded 98, you can easily break 40psi on e85 with a bigger pump and injectors!
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