08-27-2017, 04:57 AM | #23 |
Major
2925
Rep 1,303
Posts
Drives: 2021 C8 Corvette 1LT
Join Date: Jul 2016
Location: Pensacola
|
I think his numbers are pretty spot on for crank numbers. My Insoric run put my 240xi at 308hp and 507nm
http://www.2addicts.com/forums/attac...9&d=1485010832 |
Appreciate
0
|
08-27-2017, 01:00 PM | #24 | |
Captain
767
Rep 623
Posts |
Quote:
|
|
Appreciate
0
|
08-27-2017, 02:17 PM | #25 |
Major
809
Rep 1,369
Posts |
Takes a hell of a lot more than 384 WHP in a 3500 lb car to trap 120.
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
Appreciate
0
|
08-27-2017, 03:42 PM | #26 |
Major
2925
Rep 1,303
Posts
Drives: 2021 C8 Corvette 1LT
Join Date: Jul 2016
Location: Pensacola
|
No I never got a chance to do it again. Car is sitting in ATL now for me to pick it up on my drive down to Florida from Baltimore on Wednesday. When I get to my next base I will need to find an Insoric system in the area to dyno with the mods. Debating on the Pure stage 1 turbo or ripping out the carpet in my new house and putting in tile. Choices...
|
Appreciate
0
|
08-27-2017, 04:04 PM | #27 |
Major General
5556
Rep 5,372
Posts |
Some of you guys still aren't getting it. You can't compare the numbers generated by a Dynojet and compare them to a Dynapack. They don't correlate. The Dynapack attaches directly to the hub and it has certain inputs/parameters can be manipulated by the operator, similar to that of a Mustang dyno. Dynapacks are one of the highest reading dynos out there. If the OP goes back and dynos with additional mods and on the same machine, it was be more telling of the gains and the delta of those gains.
Don't forget, like every late model turbo BMW out there, the B58 is grossly underrated. It makes more like 390hp/400tq stock. If this is all over your head, then it best you not participate and just sit back. |
Appreciate
0
|
08-28-2017, 12:06 AM | #28 | |
Major
2925
Rep 1,303
Posts
Drives: 2021 C8 Corvette 1LT
Join Date: Jul 2016
Location: Pensacola
|
Quote:
But like you mentioned, it's all about the gains and the delta of the gains. He ran stock (midpipes don't count as performance mods IMO) so once he gets some mods and then re runs, we will have a better idea. |
|
Appreciate
1
22821.50 |
08-28-2017, 05:10 AM | #29 |
Major General
3489
Rep 9,709
Posts |
Funny thread.
Guy starts thread saying his stock car produced a crazy high whp figure. Then promised to upload the graph.......but didn't.......and leaves the scene. Then a bunch of guys start arguing over the accuracy of different dyno's to support the totally ridiculous claim. Fact is, the OP's figures are nearly 100hp higher than what is accepted to be the average whp reading on these cars. 290-300whp. His reading are also higher than estimated crank readings for these cars (either dyno calculated or by adding 15-20% rule of thumb losses for RWD config.) but those would be closer to his claimed 384. Maybe dynapack measure in Australian kangaroo powers? Most of us prefer to use the horsepower figure derived from a Mr. James Watt. |
Appreciate
1
crabu2141.50 |
08-31-2017, 08:39 PM | #30 |
Major
809
Rep 1,369
Posts |
^^
Not sure where you're getting 290-300 whp for the B58. There are countless dynos out there showing ~330. You're quoting N55 numbers.
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
Appreciate
0
|
09-01-2017, 08:42 AM | #31 |
Lieutenant Colonel
1165
Rep 1,931
Posts |
290-300 for a awd is correct since 235 is 270-280 wheel.
__________________
www.nybmwcca.org
Current Cars: 1995 M3 Coupe Manual Alpine White 1997 M3 Sedan Auto Cosmo Black Metallic 2018 x3 m40 Auto Grey Metallic |
Appreciate
1
CAMOETO140.00 |
09-01-2017, 09:33 AM | #32 |
First Lieutenant
140
Rep 381
Posts |
I find the wild stock HP claims hilarious myself, like the people that think the car really makes something like 400HP stock. Reading through the forum, the only data I could find where a user put their stock m240i on a Dynojet, the numbers much closer to what is advertised by BMW:
292 WHP - RWD, auto, 91 octane 308 WHP - XWD, auto, ? octane 312 WHP - RWD, auto, ? octane Dinan has claimed that our cars have about a 12%-13% drivetrain loss for the RWD/auto variant, so the numbers above actually makes sense, especially the 292 WHP car running 91, since BMW's advertised numbers are for 91 octane gas and running higher octane gas is likely to provide slightly better numbers.
__________________
Current: 2019 640i GT, 2019 MX-5 GT-S, 2015 X1 xDrive35i
Gone, but not forgotten: 2017 m240i, 2016 GTI PP, 2013 Camaro SS, 2009 G8 GXP, 2008 G8 GT, 2007 335i, 2003 530i |
Appreciate
0
|
09-01-2017, 11:50 AM | #33 | |
Major General
5556
Rep 5,372
Posts |
Quote:
So, 320whp to 330whp divided by .85 = 375hp to 390hp. Given that these ~3,500lb cars can obtain 110-111mph in the 1/4 mile, means they're making way more than the 335hp quoted number. Same goes for the M235. The 1/4 mile trap speed is key here as that is the indicator of available power to the wheels. BMW has been underrating their late model turbo engines since their introduction back in 2007. It's well documented .....everywhere. |
|
Appreciate
1
B58togo808.50 |
09-01-2017, 01:08 PM | #34 | |
First Lieutenant
140
Rep 381
Posts |
Quote:
Personally, being an m240i owner, I would be more than happy if BMW underrated our cars by 50HP, but I have not seen evidence to bear that out from Dynojet runs. The 330WHP dynos that I have seen were not Dynojet or were vendor figures. I don't doubt BMW underrates our engines, having owned N54, N55, and B58 powered BMWs, but I don't think the actual numbers are nearly what people think, especially when running 91 octane.
__________________
Current: 2019 640i GT, 2019 MX-5 GT-S, 2015 X1 xDrive35i
Gone, but not forgotten: 2017 m240i, 2016 GTI PP, 2013 Camaro SS, 2009 G8 GXP, 2008 G8 GT, 2007 335i, 2003 530i Last edited by CAMOETO; 09-01-2017 at 01:14 PM.. |
|
Appreciate
0
|
09-01-2017, 09:40 PM | #35 | |
Major
2925
Rep 1,303
Posts
Drives: 2021 C8 Corvette 1LT
Join Date: Jul 2016
Location: Pensacola
|
Quote:
|
|
Appreciate
1
CAMOETO140.00 |
09-01-2017, 09:41 PM | #36 |
Major
2925
Rep 1,303
Posts
Drives: 2021 C8 Corvette 1LT
Join Date: Jul 2016
Location: Pensacola
|
And the only reason I say I wouldn't doubt it is because I was on my 19s when I did the run, not the factory 18s (larger diameter wheels means slower acceleration, albeit minut) plus I'm sure the xdrive system is more than 15% loss
|
Appreciate
0
|
09-02-2017, 12:01 AM | #37 | |
Major
809
Rep 1,369
Posts |
Quote:
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
|
Appreciate
0
|
09-02-2017, 11:57 AM | #38 | |
Major General
5556
Rep 5,372
Posts |
Quote:
There are plenty of 340/440 dynos (Dynojet) out there showing ~305-310whp stock and then MPPK equipped 340/440s showing ~320-330whp. The M240 comes with the MPPK as factory equipment. The only thing I don't like about BMS' Dynojet numbers is that they use STD correction factors vs the more common and widely accepted SAE correction factor. The STD corrected numbers will be about 3-4% higher than SAE. That's about the only way you can manipulate numbers on the Dynojet. The machine is simple and consistent. We know for a fact that the M235 consistently makes 290-310whp and 310-330wtq on the Dynojet, depending on tranny and drivetrain (Xdrive being the least and the 6MT being the most). The M240 is a bit quicker than the M235 in stock form thus it's certainly making more power than the M235. |
|
Appreciate
1
CAMOETO140.00 |
09-02-2017, 07:24 PM | #40 |
Major
809
Rep 1,369
Posts |
What people should learn is that real world experience at the track trumps dynos.
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
Appreciate
0
|
09-02-2017, 09:09 PM | #41 | |
Major
2925
Rep 1,303
Posts
Drives: 2021 C8 Corvette 1LT
Join Date: Jul 2016
Location: Pensacola
|
Quote:
|
|
Appreciate
0
|
09-03-2017, 11:27 PM | #42 |
Major
809
Rep 1,369
Posts |
^^
The M240i has a 2.81 final drive ratio. Let us compare that to the 3.73 in the GT with the performance package. Higher numerical (deeper) FD ratios equate to quicker acceleration. I'll give you the fact that the ZF8 is ridiculously efficient and might slash a couple tenths, all else being equal, but if the GT truly was 100 bhp stronger than the 250-300 lb lighter M240i, we'd be seeing a stronger disparity (with the Mustang being quicker) in quarter mile times, stock to stock. But we're not.
__________________
2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
|
Appreciate
0
|
09-05-2017, 07:23 AM | #43 |
Private First Class
173
Rep 146
Posts
Drives: Evo9, '22 X3Mc, Turbo S2000
Join Date: Jan 2017
Location: BMW Southpoint, Durham NC. Dinan/Carbahn authorized Dealer.
|
GUYS. The M240i makes 330whp/380wtq STOCK. This has been proven multiple times.
DynaPak dynos DO read high. Given 12% over Dynojet his numbers make sense. |
Appreciate
0
|
09-05-2017, 02:36 PM | #44 |
First Lieutenant
140
Rep 381
Posts |
I think it may have been your numbers I was quoting. 308 is pretty darn good for xDrive running 91. It's quite possible that 93 gives better numbers as well.
__________________
Current: 2019 640i GT, 2019 MX-5 GT-S, 2015 X1 xDrive35i
Gone, but not forgotten: 2017 m240i, 2016 GTI PP, 2013 Camaro SS, 2009 G8 GXP, 2008 G8 GT, 2007 335i, 2003 530i |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|