BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > G-Power 500hp Turbo Installed and Compared to PS2. Testing and Datalogging

Post Reply
 
Thread Tools Search this Thread
      07-03-2018, 01:39 AM   #45
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

Quote:
Originally Posted by Yiruna View Post
How much lag can you say there is? Is it noticeable between the GP500 And Pure?
Yes lag difference can be felt. But M2 PS2 still spools faster than stock A45 AMG, at least it feels that way.

In full disclosure, my friend tried my car first and was expecting similar performance, which is why he wasn't impressed first testing PS2. But I already told in advance PS2 can't match GP500 at bottom end, but may have higher boost headroom, pushing with meth and ethanol, thanks to its bigger compressor and turbine and thus less backpressure.

Anyway, we'll dyno when ambient gets down to 75F.

Quote:
Originally Posted by tehboost View Post
HAHAHAHAHA you MUST be talking about me! ya'll I'm selling my $6k Akrapovic exhaust for less than $4k HMU! Lololol

Sean, you gonna upgrade the HPFP? Congrats on the new turbo, can't believe I'm just now seeing this thread.
No I wasn't thinking of you when saying 6k catback. It's just me that always justify myself purchasing expensive mods (GP500, HRE & etc) by thinking about Akrapovic buyers in general LOL

As for HPFP, log below clearly says no need...And I even will dial back boost a little bit... why is the stock HPFP of mine this strong? No one knows.
http://www.bootmod3.net/log?id=5b38d28fd10b437334792d1b

As for LPFP, I already bought Fuel-it STG3, but didn't install it yet. From 3 time HPDE I had with M2, the most recent one being last week at F1 circuit with GP500, LPFP is no issue at all however hard I pushed (I'm not your average driver and pushed really HARD), even with nearly empty gas tank in my last section. I probably will sell the Fuel-it.
__________________
Lemania 2320
Appreciate 2
Yiruna393.50
NO_USER_537.50
      07-03-2018, 08:23 AM   #46
NO_USER_
Captain
No_Country
538
Rep
752
Posts

Drives: .
Join Date: Jan 2017
Location: .

iTrader: (2)

Quote:
Originally Posted by SeanWRT View Post
Yes lag difference can be felt. But M2 PS2 still spools faster than stock A45 AMG, at least it feels that way.

In full disclosure, my friend tried my car first and was expecting similar performance, which is why he wasn't impressed first testing PS2. But I already told in advance PS2 can't match GP500 at bottom end, but may have higher boost headroom, pushing with meth and ethanol, thanks to its bigger compressor and turbine and thus less backpressure.

Anyway, we'll dyno when ambient gets down to 75F.


No I wasn't thinking of you when saying 6k catback. It's just me that always justify myself purchasing expensive mods (GP500, HRE & etc) by thinking about Akrapovic buyers in general LOL

As for HPFP, log below clearly says no need...And I even will dial back boost a little bit... why is the stock HPFP of mine this strong? No one knows.
http://www.bootmod3.net/log?id=5b38d28fd10b437334792d1b

As for LPFP, I already bought Fuel-it STG3, but didn't install it yet. From 3 time HPDE I had with M2, the most recent one being last week at F1 circuit with GP500, LPFP is no issue at all however hard I pushed (I'm not your average driver and pushed really HARD), even with nearly empty gas tank in my last section. I probably will sell the Fuel-it.
you have a god stock hpfp
Appreciate 1
SeanWRT3179.00
      07-03-2018, 08:28 PM   #47
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

GreatWhiteM2 Hi Jason, in response to your PM on TTE460, I'll comment here, in case some of others find it useful as well. Hope you don't mind. Thanks.

My TTE friend isn't here to share his experience due to the language barrier. But I'm just as, if not more, familiar with his car power wise than he is, because I helped in data logging and custom tuning his TTE460 with PTF in early 2018.

TTE460 of course has a higher boost headroom than STG1 turbo, making an much easier car to tune. It responds to high boost much better than Dinan turbo at 4k+ and thus makes much more power. We drag raced for fun a few times (Dinan turbo vs TTE460). From rolling, every time TTE walked away. You'd not think there is a chance for Dinan turbo.

As for 100-200 times, Dinan turbo got its best 8.4s on ideal condition - freezing cold, no extra weight on the car, <1/4 gas in the tank & etc. I cannot reproduce that result. Normally it was high 8s on cold days.

However, TTE grabbed low 8s like driving back home on a random day. I reckon it'd be 0.5-0.7s quicker than Dinan turbo in 100-200, given same condition.

TTE460 is strong and responsive and exactly is why I considered moving up to STG2 turbo in the first place.

I saw you guys got some excellent 100-200 numbers in Britain. These numbers seems at least half a sec quicker than what we got here with our RON98 (the best gas in the best city, equivalent to if not better than US AKI93, according to data logging) and P Gear, a very popular and reliable 10HZ testing device that seems to read very close to Draggy and V box, maybe 0.1-0.2s difference at maximum in 100-200.

To better explain TTE460 capability, I'll give some context to the numbers as below. Keep in mind they're gotten on 98RON and on cold days:

100-200kph (62-124mph):
Stock M2 - high 10 to 11s
Stock M4 base - high 9s
Stock ZCP - mid to low 9s
FBO flashed M2 - mid 9s, highly dependent of tuning.
STG1 turbo M2 - high 8s to low 9s.

I think TTE460 will slot into low 8s territory. Properly tuned, TTE460 gains more power over STG1 turbo than STG1 does over stock turbo.

In addition to above, below is what I said about TTE460 earlier on another thread and here I quote.

Quote:
Originally Posted by SeanWRT View Post
My local TTE460 friend didn't dyno yet.

He is FBO on pump gas 98RON, on a custom map by Halim. It's a pretty aggressive map. Very very strong middle range. But top end is limited by octane.

As for 100-200, the best he ever got was in low 8s. Which was tested on a 20C/68F day. He could do better on a colder day but it'd be very difficult to dive into sub 8. As shown from log, there is octane restriction at top end.

I think 440ish whp(US hp corrected to STD) is about the max on 98RON. Maybe in Europe there is RON99/100 to extract a bit more. Again, much more usable power over stock turbo than peak whp difference tells.

With octane limit, I don't think HPFP would help much TBH. Maybe 10-15hp left in it at best, if you trade timing for boost with upgraded HPFP/PI.

As for spool up, TTE460 gave up about 500rpm compared to stock turbo.

Overall, TTE460 is a very efficient kit and is a good value for the money. It's a better pump gas turbo than PS2 in my eye.

That's all there is to know about TTE460 on pump gas. Very precious knowledge I'm sharing here uh...
__________________
Lemania 2320
Appreciate 0
      07-04-2018, 09:47 AM   #48
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

Quote:
Originally Posted by GreatWhiteM2 View Post
Thanks Sean,

Perfect explanation and much appreciated. Do you remember what peak psi was on the TTE460 mapping and did he upgrade the DV+ or keep that stock?

High 17 psi in peak. Almost flat 17 throughout the band. Going higher will lose timing, especially on the top end.

Stock DV. M2 has N20 version DV from factory. There is no need for DV+ unless you go above 20psi. These N20 guys on JB4 have been doing 22+psi peak. I heard only one person in 6 years (since EWG was out) had DV issue.
__________________
Lemania 2320

Last edited by SeanWRT; 07-04-2018 at 10:00 AM..
Appreciate 1
M2C_PLUS1774.00
      07-20-2018, 01:19 AM   #49
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

Just so you guys know - CaryTheLabelGuy is working on my car
__________________
Lemania 2320
Appreciate 0
      07-20-2018, 03:08 AM   #50
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Quote:
Originally Posted by SeanWRT View Post
GreatWhiteM2
To better explain TTE460 capability, I'll give some context to the numbers as below. Keep in mind they're gotten on 98RON and on cold days:

100-200kph (62-124mph):
Stock M2 - high 10 to 11s
Stock M4 base - high 9s
Stock ZCP - mid to low 9s
FBO flashed M2 - mid 9s, highly dependent of tuning.
STG1 turbo M2 - high 8s to low 9s.
It says a lot about stock turbo B58 v N55 when Mx40i autos with decat DP and OTS p/back map are hitting high 7's to low 8's on pump fuel and low 7's with decat & Jb4 on pump fuel and WMI !!!!
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT
Appreciate 0
      07-20-2018, 03:53 AM   #51
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

GWM2 - reads like this guy's n55 m235i - stock turbo with PI and e50 blend - supports my view that JB4 & BEF remains top of the heap !!!
Attached Images
  
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT
Appreciate 1
M2C_PLUS1774.00
      07-20-2018, 05:46 AM   #52
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Quote:
Originally Posted by GreatWhiteM2 View Post
Port injection is king for these.
Agreed - 420whp that's 65whp more than my M135i - 2 options for PI -

retrofit ie Fuel-it spacer - via MLP in the UK - pricey though

https://www.mlperformance.co.uk/coll...nt=48914251732

So much so that I'd be inclined to go for EoS solution of hi flow intake with 50% larger injectors.....https://www.eospeed.com/products/n55-intake-manifold



The above with TTFS HPFP fuel pump may well get similar gains as Bouvie's M235i with less ethanol in the blend.....
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT
Appreciate 0
      07-20-2018, 10:46 AM   #53
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

Quote:
Originally Posted by Bee Pee View Post
It says a lot about stock turbo B58 v N55 when Mx40i autos with decat DP and OTS p/back map are hitting high 7's to low 8's on pump fuel and low 7's with decat & Jb4 on pump fuel and WMI !!!!
N55 PS2 PWG on WMI and pump gas (no need for ethanol) does 7s flat 100-200 all day, can do sub 7s on good condition. Keep in mind given same car my numbers seem to be 0.5s more conservative than British numbers.

Speaking of B58, compared to N55 EWG, it has a bigger turbo from factory - 10% bigger compressor and 6% bigger turbine, according to BMW. N55 PS2 is definitely more than 10%/6% bigger.

Below I also have attached a picture of B58 turbine housing (4.5" outlet). The blade pitch seems just as conservative as N55 stock.

I tend to believe all N55 STG2 turbo (PS2,GP500,TTE460) flows better than B58 stock turbo and thus will make more power, everything else being equal.

What's more is that B58 has a higher compression ratio, which is much more octane sensitive under high boost. Alongside with its very incapable W2A IC, B58 is in desperate need for WMI, albeit its freer flow turbofold (than N55) greatly helps ignition timing.

That being said, I have no doubt B58 on hybrid turbo has 600+whp potential, with enough octane from WMI+ethanol+race gas.

In BMW's way, S58 should have a bigger W2A IC, twin turbo with a freer flow turbofold and, as I suspect, a lower compression ratio to allow for higher boost on pump gas.

The same thing also happen with Merc's M177/M178 twin turbo V8. When they use bigger turbo and increase boost for higher-end variants, they lower compression ratio.
Attached Images
  
__________________
Lemania 2320
Appreciate 2
M2C_PLUS1774.00
Endeav388.50
      08-12-2018, 02:46 AM   #54
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

I see now that the TTE 550 is released. Any input on this turbo, or TTE in general?
Appreciate 0
      08-14-2018, 03:28 PM   #55
Winterstorm
Enlisted Member
Winterstorm's Avatar
63
Rep
48
Posts

Drives: BMW M2 Competition (04/2019)
Join Date: Apr 2018
Location: Germany

iTrader: (0)

Video : M2 N55 with TTE460 (TPS Performance)
100-200 km/h - from my point of view is that very good performance.




I know two Guys experiencing with the new TTE500 at her M2 but not finished yet with engine adjustment etc.
Appreciate 0
      08-15-2018, 01:12 AM   #56
Tricki
Lieutenant
Tricki's Avatar
Australia
215
Rep
472
Posts

Drives: BMW M2 Comp
Join Date: Jun 2012
Location: Melbourne Australia

iTrader: (0)

Quote:
Originally Posted by Winterstorm View Post
Video : M2 N55 with TTE460 (TPS Performance)
100-200 km/h - from my point of view is that very good performance.




I know two Guys experiencing with the new TTE500 at her M2 but not finished yet with engine adjustment etc.
High 7,s Pretty damn good I rekon!!!
Appreciate 0
      08-16-2018, 12:24 AM   #57
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

Quote:
Originally Posted by Winterstorm View Post
Video : M2 N55 with TTE460 (TPS Performance)
100-200 km/h - from my point of view is that very good performance.




I know two Guys experiencing with the new TTE500 at her M2 but not finished yet with engine adjustment etc.
There are maps calibrated for one single glorious run and there are maps for 365 day consistent performance.

Always take a grain of salt what vendor posts. 9 times out of 10, it's the selected result and you're not given full disclosure what they use to achieve it. I'm fairly certain that you wouldn't be happy with what it takes.

Quote:
Originally Posted by Rondavouz View Post
I see now that the TTE 550 is released. Any input on this turbo, or TTE in general?
TTE and TPS performance both told me in May that they're collaborating in testing TTE550. Strangely, at this point, MLperformace, a British vendor is the first and the only one selling it. And there are no results, from vendor or independent, reported anywhere as of yet.
__________________
Lemania 2320
Appreciate 1
      08-16-2018, 12:26 PM   #58
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

Have ordered a TTE550, lets see what/when I get something





Appreciate 1
SeanWRT3179.00
      08-16-2018, 06:55 PM   #59
Cristian135
Private First Class
19
Rep
103
Posts

Drives: Bmw m2
Join Date: Feb 2018
Location: Barcelona

iTrader: (0)

What price this turbo tte550?
Appreciate 0
      08-21-2018, 01:33 PM   #60
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

Quote:
Originally Posted by Cristian135 View Post
What price this turbo tte550?
Until I have it physically in my hands I rather not comment on price. Anyway I just got a tracking message from Germany stating my turbo is on its way (to Sweden)
So should be here soon...
Appreciate 0
      08-21-2018, 09:01 PM   #61
GoneIn4Secs
Banned
1286
Rep
1,675
Posts

Drives: BSM F87 LCI (DCT)
Join Date: Jun 2018
Location: GTA

iTrader: (0)

OP, how does what you say compare to stage 4 dinan?

Can the n55 m2 deal with above 500hp in the longterm health and Longevity of the engine/car??
Appreciate 0
      08-22-2018, 12:54 AM   #62
Who?
Colonel
Who?'s Avatar
Australia
485
Rep
2,197
Posts

Drives: F87 LCI
Join Date: Nov 2012
Location: Brisbane

iTrader: (0)

Quote:
Originally Posted by Tricki View Post
High 7,s Pretty damn good I rekon!!!
doesn't he Ferrari 812 superfast do it in 7.9sec? far out that's quick
__________________
So far: 200cell downpipe, custom exhaust, lifhtweight splitter, m4 comp seats
Appreciate 0
      08-22-2018, 12:59 AM   #63
Tricki
Lieutenant
Tricki's Avatar
Australia
215
Rep
472
Posts

Drives: BMW M2 Comp
Join Date: Jun 2012
Location: Melbourne Australia

iTrader: (0)

Quote:
Originally Posted by Who? View Post
Quote:
Originally Posted by Tricki View Post
High 7,s Pretty damn good I rekon!!!
doesn't he Ferrari 812 superfast do it in 7.9sec? far out that's quick
Not sure what your talking about??
The Ferrari super fast does it in 5.0sec flat
Appreciate 0
      08-22-2018, 01:19 AM   #64
Who?
Colonel
Who?'s Avatar
Australia
485
Rep
2,197
Posts

Drives: F87 LCI
Join Date: Nov 2012
Location: Brisbane

iTrader: (0)

Quote:
Originally Posted by Tricki View Post
Quote:
Originally Posted by Who? View Post
Quote:
Originally Posted by Tricki View Post
High 7,s Pretty damn good I rekon!!!
doesn't he Ferrari 812 superfast do it in 7.9sec? far out that's quick
Not sure what your talking about??
The Ferrari super fast does it in 5.0sec flat
Haha i mustve looked at the wrong figure

it does 0-200 in 7.9 seconds my memory is dimming with age
__________________
So far: 200cell downpipe, custom exhaust, lifhtweight splitter, m4 comp seats

Last edited by Who?; 08-22-2018 at 01:38 AM..
Appreciate 1
Tricki215.00
      08-22-2018, 07:46 AM   #65
SeanWRT
Colonel
SeanWRT's Avatar
3179
Rep
2,577
Posts

Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

iTrader: (1)

GoneIn4Secs As I mentioned in the OP, G Power turbo pulls significantly harder than Dinan STG4, even on the same STG2 OTS map.

Tricki I don't know what octane and boost European guys use to make high 7s with TTE460. The best my local TTE460 buddy did with RON98 was low 8s on cold days, normally it's middle 8s. The car was pretty much maxed out octane wise, running 17psi flat. I need to mention if you keep IAT well below 80F, 17psi of boost flat is an extremely high load for a N55.
__________________
Lemania 2320
Appreciate 0
      08-22-2018, 07:51 AM   #66
Tricki
Lieutenant
Tricki's Avatar
Australia
215
Rep
472
Posts

Drives: BMW M2 Comp
Join Date: Jun 2012
Location: Melbourne Australia

iTrader: (0)

Quote:
Originally Posted by SeanWRT View Post
GoneIn4Secs As I mentioned in the OP, G Power turbo pulls significantly harder than Dinan STG4, even on the same STG2 OTS map.

Tricki I don't know what British guys have to make high 7s with TTE460. The best my local TTE460 buddy did with RON98 was low 8s on a cold day. The car was pretty much maxed out octane wise, running 17psi flat. I need to mention at below 80F of IAT, 17psi of boost flat is very high load.
Yeah these British guys do tend to stretch the truth and talk a little, just look at GreatWhiteM2 who has jumped off and now cheating all us regular M2 guys and getting his competition.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:34 PM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST