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Technical Topics B48 4-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications Who has the quickest G20 330i on Bimmerpost?

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      11-25-2020, 05:23 PM   #45
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Here are my results from the weekend, for anyone wondering about JB+ on a 330i.
  • 2020 330i xDrive.
  • JB+ on default position.
  • Cinturato P7 RFTs.
  • Shell 93.
  • Ambient temp 63F.
7.144s - 2.111s = 5.033s (last frame showing 0 on the speedometer to frame when it updates to "64")
Things I noticed after I got home: I left it in Comfort mode and my tires were over-inflated by 3 PSI... Didn't feel like traction was an issue, though.
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      12-03-2020, 02:57 PM   #46
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Got a new dragy. And also new tyres installed yesterday (tyres are brand new and have less than 10 miles on them and are EXTREMELY slippery because they're new). I wanted to see if the dragy works since it's a gift from my wife and I was hoping third time lucky. And yes. I was lucky.

Car was in comfort mode. Shifter in S. Absolutely no brake boosting or LC. WOT from a standstill. 3/4th tank fuel, baby seat, two tyres (old RFTs) in the trunk. TC was on.

Custom map 6 with EWG. ~E25 fuel. Result below. Only did one run just for fun since I want to break in the tyres for 500 miles. My stock car with LC is slower!

PS: Time could have been very slightly better and trap speed slightly higher had I not backed off because I saw a car approaching from a distance.
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      12-03-2020, 04:45 PM   #47
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Quote:
Originally Posted by VipinLJ View Post
Got a new dragy. And also new tyres installed yesterday (tyres are brand new and have less than 10 miles on them and are EXTREMELY slippery because they're new). I wanted to see if the dragy works since it's a gift from my wife and I was hoping third time lucky. And yes. I was lucky.

Car was in comfort mode. Shifter in S. Absolutely no brake boosting or LC. WOT from a standstill. 3/4th tank fuel, baby seat, two tyres (old RFTs) in the trunk. TC was on.

Custom map 6 with EWG. ~E25 fuel. Result below. Only did one run just for fun since I want to break in the tyres for 500 miles. My stock car with LC is slower!

PS: Time could have been very slightly better and trap speed slightly higher had I not backed off because I saw a car approaching from a distance.
sandbagger!!! times could have been much better and if you went all out i think your car would be doing 12s
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      12-03-2020, 04:57 PM   #48
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Quote:
Originally Posted by Avaley View Post
sandbagger!!! times could have been much better and if you went all out i think your car would be doing 12s
Yup. If I did get a DP and stuff, I'm sure I'll be in the 12s range. Waiting for the tyres to be broken in before doing a LC run. Nothing great though. Just Michelin PS3+s.
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      12-03-2020, 08:32 PM   #49
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      12-03-2020, 11:07 PM   #50
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Originally Posted by YONIg20 View Post
350HP
Do you have a dragy? If not,nplease do consider getting one and posting results here!!! I'd love to see what numbers a stage 1/2 BM3 car does.
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      12-07-2020, 03:16 PM   #51
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Quote:
Originally Posted by VipinLJ View Post
I was surprised at the results too. But when I launched it today, it felt like it has always felt when using LC (just to make sure it wasn't a fluke) I'll do a few more runs in a few days.

And yes. I'll be doing more to this car hopefully even though it's a lease. I might even buy it out at the end of the lease if I'm happy with how the car turns out.

Car is an xDrive with 8AT. Running OEM all season RFTs (Pirelli P7 Cinturato) 225/45R18 with treads at 5/32.

I also spoke to xHP last week and they said they're working on a transmission tune for the G20 330i. Can't wait for them to launch it!
forgive my ignorance but I'm a first time BMW driver. how do you properly set up launch control a 330i? Granted I have a non-m sport. Is it even possible?
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      12-07-2020, 03:46 PM   #52
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Originally Posted by dr_frankfurter View Post
forgive my ignorance but I'm a first time BMW driver. how do you properly set up launch control a 330i? Granted I have a non-m sport. Is it even possible?
The Sport line is the base model in the US, so all 330s have launch control. The answers to all of the questions here and in other recent posts or yours can be found in existing threads/posts--use the search function.

By the way, you might want to keep in mind the 1,200 mile break-in period.
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      12-07-2020, 05:23 PM   #53
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Mods -

1. JB4 with EWG connector; Map 6
2. Drop-in K&N filter
4. Michelin PS3+ tyres

Fuel - E25 blend

Launch control runs twice, back to back with no cool off period. Only did it those two times.

Results in the pic below.

Trap speeds - 105.06mph for the 13.12s run and 106.37mph for the 13.14s run.

Video of the second run below as I didn't know you had to actually press the record button (I assumed it would start recording automatically when you move, which was why I couldn't get the 13.12s run on video).
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      12-15-2020, 11:26 PM   #54
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Same mods as before. This time, runs were done WITHOUT LC.

Run 1 - WOT with optimized DSC (Single press of the DSC button)
Run 2 - WOT with all electrical nannies on

Runs were done on the same road in Mexico

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      12-25-2020, 07:01 AM   #55
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Quote:
Originally Posted by VipinLJ View Post
Same mods as before. This time, runs were done WITHOUT LC.

Run 1 - WOT with optimized DSC (Single press of the DSC button)
Run 2 - WOT with all electrical nannies on

Runs were done on the same road in Mexico

LC really does it's thing if we are looking at nearly 0.5 a sec slower without it.
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      12-25-2020, 10:37 AM   #56
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Quote:
Originally Posted by OM3RTA View Post
LC really does it's thing if we are looking at nearly 0.5 a sec slower without it.
It absolutely does. I saw videos where the M340i does 0-60 in like 4-4.2s with LC and 4.7-4.9 without it. Same for all cars basically.
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      12-26-2020, 02:57 PM   #57
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Quote:
Originally Posted by VipinLJ View Post
It absolutely does. I saw videos where the M340i does 0-60 in like 4-4.2s with LC and 4.7-4.9 without it. Same for all cars basically.
True but I honestly wasn't expecting such a gap.
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      12-27-2020, 12:40 PM   #58
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Originally Posted by OM3RTA View Post
True but I honestly wasn't expecting such a gap.
I was actually expecting a bigger gap. The turbo is asleep for a few thousand RPMs before waking up, when you go WOT. With LC, the turbo is spooled up and ready to go
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      12-27-2020, 01:12 PM   #59
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Quote:
Originally Posted by VipinLJ View Post
I was actually expecting a bigger gap. The turbo is asleep for a few thousand RPMs before waking up, when you go WOT. With LC, the turbo is spooled up and ready to go
Fair point
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      12-30-2020, 12:47 PM   #60
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Going to start making a few comparison tests for myself.

First probably doing a comparison from stock with runflats to stock with PS4S. Then I'll add JB+ and possibly some other piggy back or tunes into the runs from 0-60 and 1/4 Mile. Whats a decently reliable product to time these runs in the US?
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      12-31-2020, 12:20 AM   #61
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Quote:
Originally Posted by JTYAMSHAYIN View Post
Going to start making a few comparison tests for myself.

First probably doing a comparison from stock with runflats to stock with PS4S. Then I'll add JB+ and possibly some other piggy back or tunes into the runs from 0-60 and 1/4 Mile. Whats a decently reliable product to time these runs in the US?
Looking forward to the results of the various runs.

For proper performance figures, get a dragy. They're as good as getting time slips from a drag strip. I use them (I've posted my results above) and I love it.

PS - I just realised I uploaded the wrong video of my WOT runs without LC. I've uploaded the correct one now. The dragy video overlay doesn't work perfectly for me (there's a weird delay between the Christmas tree lights & audio compared to the video which starts to play earlier). Seems like it's an issue with my phone and not the app but I'm not 100% sure. The times are spot on though.

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      12-31-2020, 12:24 PM   #62
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15-130mph completely stock, just muffler valve always open.
Also don't hate on my analog cluster lol I've seen no one with one on here yet
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      12-31-2020, 12:28 PM   #63
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Dragy time
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      12-31-2020, 08:52 PM   #64
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Dragy time
Was that with or without LC?
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      01-02-2021, 04:04 AM   #65
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Quote:
Originally Posted by Merami fan View Post
Here are my results from the weekend, for anyone wondering about JB+ on a 330i.
  • 2020 330i xDrive.
  • JB+ on default position.
  • Cinturato P7 RFTs.
  • Shell 93.
  • Ambient temp 63F.
7.144s - 2.111s = 5.033s (last frame showing 0 on the speedometer to frame when it updates to "64")
Things I noticed after I got home: I left it in Comfort mode and my tires were over-inflated by 3 PSI... Didn't feel like traction was an issue, though.
All speedos generally run 3%optimistic so your 0to 60 is also slightly optimistic
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      01-02-2021, 04:12 AM   #66
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Quote:
Originally Posted by VipinLJ View Post
I was actually expecting a bigger gap. The turbo is asleep for a few thousand RPMs before waking up, when you go WOT. With LC, the turbo is spooled up and ready to go
The stock turbos are pretty small, spool up is not negligible but it’s not super significant either. It’s more about getting into the rev range where it is safe to make boost/torque (as opposed to eliminating spoolup time).
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