|
|
|
Post Reply |
|
Thread Tools | Search this Thread |
06-21-2013, 12:43 PM | #1 |
Major General
3431
Rep 6,771
Posts
Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach
iTrader: (1)
Garage List 2012 BMW e92 M3 [0.00]
2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00] |
Initial Subjective Impression - ESS VT2 650 vs ESS VT2 625
What up guys.
So after replacing the standard 96mm pulley that comes in the 625 kit to a 92mm pulley and increasing my rev limit to 8,600 RPM, my car felt fantastic. But I didn't gain much peak power in doing so, even though boost increased from 5.0psi to 5.7psi. Peak RWHP increased from 567 (STD) to 573 (STD). The 92mm pulley gave me the same ratio for boost as the pulley system in the 650 kit, but my boost is still low. Why? Who knows at this point. Regardless, since I was already needing to run higher octane than what we get here out of the pump in Cali, I was justified in upgrading to the 650 "kit" from ESS...which in addition to the new pulley system, provides for more fuel (larger injectors) and a revised tune. The tune is the key here, as the increased injectors allow for more fuel on the top-end and gives ESS the ability to "fine tune" at the top of the rev range. It also give me more peace of mind given that we are at the limit of what the S65 is capable of in stock form and I don't want to even run lean on fuel. So what happened? Well, I dyno'd at EAS again and peak power, on average, increased by about 20 as compared with the off-the-shelf 625 kit. So it does what it's marketed to do. The peak power (on my highest dyno runs) achieved on the 625 kit was 567 vs 583 with the 650 kit, however what was apparent was that the 650 kit on the dyno was much more stable and consistent. My dyno's with the 625 kit were subject to more volatility/wider range of discrepancy. I'm not posting any dyno's in this thread - I will do that later once my new water/meth kit gets installed. What I wanted to share is my "seat of the pants" impression because there is a significant difference in what I "feel". A la my subjective review. Even before the car fully adapted to the new 650 tune, I felt a significant increase in "pull" above 7,000 RPM when I first took it for a spin. Not just a little...but a lot. With my prior set up, there was at times, a transition of acceleration at 7K, which I described to others as similar in feeling as what is felt on a sport bike which provides accleration boost at a particular transitory RPM (usually above 8K RPM) Now, this acceleration transition is consistent and just violent. Perhaps I'm desensitized to how fast the car accelerates below 7K, but below 7K, the car now comparatively feels slow. I know it's not slow because the dyno graphs prove that I'm making just as much power as before (with the 625 kit, upgraded 92mm pulley and 8.6K RPM limit) below 7K. But at 7K, f*ck. I'm telling you the transition makes me loose my stomach every time. We're entering the dog days of summer here in SoCal so no Airstrip events for a while. But I'm looking forward to the next one coming up in about 3 months to see what I can do with the new top end power. Be back soon with dyno/technical info. Cheerz.
__________________
Current BMWs: 2022 X5 40i, 2016 X5 50i
2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w |
06-21-2013, 03:19 PM | #2 |
First Lieutenant
152
Rep 392
Posts |
I went from a 600 to the 650 and, yes, your correct. Above 7,000 RPM the pull can be very noticeable. Lately however, with the summer heat, the pull isn't as strong consistently. Let me know how your meth kit goes, love to know!
|
Appreciate
1
NiceM31.50 |
06-21-2013, 03:28 PM | #3 |
Brigadier General
478
Rep 3,044
Posts
Drives: 2011 Dakar Yellow M3, 2018 M5
Join Date: Feb 2007
Location: Orange County, California
|
These numbers are insane. The fact that your car is putting these kinda of figures down on only 5.7 pounds of boost still amazes me.
__________________
[ESS VT2-625] [Akrapovic Evolution Exhaust] [KW Clubsports] [OSS Angel Eyes] [Revinora r-CRT Lip] [Vorsteiner Boot] [Challenge Race Diffuser] [See the Build Thread HERE] |
Appreciate
0
|
06-21-2013, 05:04 PM | #5 |
Lieutenant Colonel
163
Rep 1,506
Posts
Drives: '15 FO M4
Join Date: Sep 2010
Location: NorCal Bay Area
|
Nice initial review, can't wait to hear more! Thanks for sharing Adam.
__________________
Fire Orange F82 Built by Alekshop | Pure Stage 2 Turbos | Akrapovic Evolution and Downpipes | ESS T-500 Performance ECU Software | Evolution Racewerks Chargepipes | Gruppe M CAI | Awron Gauge w/ Valve Control | KW Clubsport | Brembo GT 380 F&R | 19" BBS FI-R | BMW Performance Seats, Aero, and Steering Wheel | Vorsteiner Diffuser | IND Cosmetics
|
Appreciate
0
|
06-21-2013, 05:16 PM | #6 |
Banned
25
Rep 873
Posts |
|
Appreciate
0
|
06-21-2013, 05:17 PM | #7 |
Brigadier General
478
Rep 3,044
Posts
Drives: 2011 Dakar Yellow M3, 2018 M5
Join Date: Feb 2007
Location: Orange County, California
|
__________________
[ESS VT2-625] [Akrapovic Evolution Exhaust] [KW Clubsports] [OSS Angel Eyes] [Revinora r-CRT Lip] [Vorsteiner Boot] [Challenge Race Diffuser] [See the Build Thread HERE] |
Appreciate
0
|
06-21-2013, 07:21 PM | #10 |
Bulldog
482
Rep 3,355
Posts |
Badass Broski!
Nobody else comes close to the boost/power ratio that ESS puts down! They know how to tune fo sho! In for the Dyno's!
__________________
Prev: Individual F80 M3 - Fjord Blue/Silverstone(interior) | Fashion Grey(exterior)
GTS |
Appreciate
0
|
06-22-2013, 09:32 PM | #12 |
10820
Rep 27,601
Posts |
__________________
BEFORE YOU BUY YOUR NEXT BMW, EMAIL OUR GUY KOTE FIRST! Kote M Sales:Kotem@bmwofcamarillo.com Cell:805-368-9101 vipfinance@bmwofcamarillo.com for warranties! |
Appreciate
0
|
06-22-2013, 09:50 PM | #14 |
E46 + E90 + F80
192
Rep 2,894
Posts
Drives: E46 + E90 + F80
Join Date: Jul 2008
Location: Illinois
|
Great review as always!
Hopefully those Airstrip events come up sooner than later!
__________________
F80 M3 DCT|Alpine White . Black Leather | My Build Thread
E90 M3 DCT|Melbourne Red . Speed Cloth | My Build Thread E46 M3 6MT|Jet Black . Black Nappa Leather | My Build Thread |
Appreciate
0
|
06-22-2013, 10:07 PM | #15 |
You got my money?
3161
Rep 4,646
Posts
Drives: Ice Cream Truck
Join Date: Jul 2011
Location: ///OC
|
Good stuff. Lets hear about that STI sometime too!
__________________
2022 G80 M3 Competition X / 2020 Range Rover Sport P525 / 2023 Ford Raptor
|
Appreciate
0
|
06-22-2013, 10:46 PM | #16 | |||
Major General
3431
Rep 6,771
Posts
Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach
iTrader: (1)
Garage List 2012 BMW e92 M3 [0.00]
2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00] |
Quote:
Quote:
If you don't tune for it, it will give a small power bump, but more importantly keep the power there when it gets hot. I bought the Snow Performance Stg 2 kit. Perfect for a centrifugal charged M3. your car Quote:
Just saw your dyno. Nice #'s and oh, it says the shop is in St Charles huh? I used to go there every year when I worked at Arthur Andersen back in the day for training. Got super wasted once and on my way back from the bars found a bike and rode it into the river. Great times
__________________
Current BMWs: 2022 X5 40i, 2016 X5 50i
2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w |
|||
Appreciate
0
|
06-22-2013, 10:54 PM | #17 |
Major General
3431
Rep 6,771
Posts
Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach
iTrader: (1)
Garage List 2012 BMW e92 M3 [0.00]
2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00] |
Wassup Don! Well it's no M3. Fugly as sin but it launches like crazy. I even took it offroad the other day and it just goes like snot through dirt
With Stg 2 and a protune, it made 305 AWHP on Cobb's Mustang dyno on 91 oct and 315 AWHP when I added a bottle of Torco. I would guess a stock M3 does maybe 320 on a Mustang on 91 octane.
__________________
Current BMWs: 2022 X5 40i, 2016 X5 50i
2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w |
Appreciate
0
|
06-22-2013, 11:35 PM | #18 |
You got my money?
3161
Rep 4,646
Posts
Drives: Ice Cream Truck
Join Date: Jul 2011
Location: ///OC
|
^^^ Impressive tune! I like the WRX wing on it. The STi one is a bit too much. As ugly as they are, they sure do make up for it in other departments. Look good man, but you should drop that sucker!
Seeing this makes me miss mine. I should have keep it as a DD.
__________________
2022 G80 M3 Competition X / 2020 Range Rover Sport P525 / 2023 Ford Raptor
|
Appreciate
0
|
06-22-2013, 11:36 PM | #19 | |
E46 + E90 + F80
192
Rep 2,894
Posts
Drives: E46 + E90 + F80
Join Date: Jul 2008
Location: Illinois
|
Quote:
St. Charles indeed! My good friend owns a small car shop there that many of us car nuts frequently hang out at. Downtown St. Charles is always fun to drink at, haha. If you're ever back in the Windy City, definitely give me a heads up. I can remind you of what a slow E90 M3, half as fast as yours, feels like again...
__________________
F80 M3 DCT|Alpine White . Black Leather | My Build Thread
E90 M3 DCT|Melbourne Red . Speed Cloth | My Build Thread E46 M3 6MT|Jet Black . Black Nappa Leather | My Build Thread |
|
Appreciate
0
|
06-23-2013, 04:13 AM | #20 | |
Captain
90
Rep 850
Posts |
Great numbers OP. I like your enthusiasm. SC from day 1, and now raised rev limiter plus more boost. Good stuff. Oh and you surely need a set of different cams to see the benefit of raised rev limiter.
Quote:
Just send Imran an email man. And don't be so lazy and install the damn exhaust. |
|
Appreciate
0
|
06-23-2013, 08:51 AM | #21 | |
Major General
3431
Rep 6,771
Posts
Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach
iTrader: (1)
Garage List 2012 BMW e92 M3 [0.00]
2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00] |
Quote:
EAS is measuring boost from the manifold on the dyno using the bypass valve. Early on, EAS even hooked up a mechanical boost guage directly to the manifold because we were assuming the dyno either wasn't reading correctly or something. But the mechanical boost guage read the exact same numbers. EAS dyno's dozens of supercharged e9X M3's and they know how to hook up the boost sensor/guage. Further, the readings are also consistent when changing things around. With the 96mm pulley I was at 5.1psi with the stock exhaust. When I went with the MRF catless mid-pipe, I dropped to 4.9-5.0psi (the delta is consistent with what esquire found from changing from Akra Evo to MRF). When I changed to the 92mm pulley, I went to 5.7psi. That was about the same boost as my first couple pulls with the 650 pulley system (the last dyno pulls I got weird boost spikes from what looked like throttle closure). So if you assume my original boost reading of 5.1 was correct with the 96mm pulley and stock exhaust, all the changes from that point make sense. I'm open to more ideas if anyone has any.
__________________
Current BMWs: 2022 X5 40i, 2016 X5 50i
2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w |
|
Appreciate
0
|
11-10-2015, 06:00 PM | #22 |
New Member
0
Rep 10
Posts |
ESS 650
Hey Guys,
I recently decided to buy an ESS 650 supercharger for my M3. I don't want to be asking a silly question, I am overly excited to install the kit, but I'm also happy to hear some of the expectations I will get from it. There is no doubt I will see a great difference but I would like to hear it from those of you who went from a stock M3 to a supercharged M3. Is the kit worth the money? Will the power be beyond expectations? Thank you for any future replies. |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|