|
|
11-09-2012, 03:53 PM | #1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Captain
22
Rep 644
Posts |
*** VF620 Dyno Results/Review ***
Hey guys/gals,
As many of you know my car is near completion and now have had some time to enjoy all the modification that have been done. Over the years I have been around, built, driven many cars and have a full perspective of what I look for in a car. I have come to the conclusion I prefer purpose built cars that feel like they have been built by the manufacturer that way. In years past, this was not so easy to accomplish. The aftermarket world sure has come a long way; not only in how these parts perform, but in the fit and finish compared to OEM. When I first set out to build this car I did not have my mind set to boost it. I have owned many S/C cars; some reliable and some not. Tuning was not always so simple and having the support from the companies not always there. In this build I wanted to accomplish the following things: 1) Purpose built track car that can be driven on the street. 2) Fit and finish on a stock car with the benefits of modified car. 3) Over 500whp that is on tap with pump gas that drives like a stock car, but with the power when I need it. After months of looking and driving different supercharger M3's I had made up my mind: VF Engineering. What impressed me the most about the company is the experience they have in adding boosted power to European cars. They have been supercharging cars for over 15 years with much success. As many of the kits have similar blowers; what I liked about VF was the plenum design. I didn't fully understand how it works until Nick, the owner of VF, showed me a cutout of the unit. The whole kit just made much sense to me, not too complicated with hoses and wires everywhere. Everything had a purpose and a place. This translated to less disruption if we decided to go back to N/A. As for the power it is just awesome! The car just drives better, plain and simple. The power curve is smooth and linear, which I am very happy with. The main difference to someone that has been driving an N/A M3 is throttle response. Just cruising around whether you’re on the highway or public roads is simply effortless. What once required half throttle now only requires a quarter. It is very easy to speed in this car now lol . All of this is great and subtle until you lay the hammer down. This car pulls like a mother, but the crazy thing is how smooth it pulls. It makes the car much more enjoyable to drive and quite addicting. The tune is awesome. Nick really did a great job making this kit feel like a stock car until you use the power. The car starts up and idles perfect every time, very impressive. I also choose to add a Tial blow off valve which makes down shifts a bit smoother with the cool noise ppsshhhhshsh! Super fun coming to a stop light and blippig the throttle three or four times....pssshsh bing bang bong psshshh lol!! Probably the most surprising part about this kit for me was the MPG. I have a 45 mile commute each day and when I drive this car at an 80 mph cruise I achieve 30 mpg! I couldn't believe it at first, then I tested it manually at it was dead on. Obviously, when you dig in the gas pedal it’s less but I still get an average of about 26-28mpg all the time! All and all I am very happy with the kit. The support at VF is awesome. We were trying to get this car ready for Bimmerfest this year and Nick was at home working on my tune until 12am for me. That is awesome! Darwin and all my brothers at Sonic MS have done an awesome job building this car and putting in the work to get it done. Well now that it’s done and I have re-badged the car. It is a VF620 M3 and I am very proud of that. We will now be planning some track time for the car and hope to see some of you out there! I have posted some dyno results we achieved this past week on the car. Hope you all enjoy! J Dyno Results: Car and Modifications:
The legend below has the following meaning:
Graphs: SAE Corrected: HP, TQ, with IAT: Air-Fuel-Ratio: NOTE: AFR-Target = Dyno AFR sensors. AFR-B1, AFR-B2 are the BMW O2 sensors. There seems to be a difference between the two; a difference that is not normally seen during dyno tests. One or the other is out of calibraiton, and by the looks of it, the dyno AFR sniffer looks like it's out of calibration. Boost Log: STD Corrected: Uncorrected:
__________________
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
11-09-2012, 04:50 PM | #5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Banned
25
Rep 873
Posts |
Very real. Very good. Congrats.
Quote:
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Appreciate
0
|
11-09-2012, 07:07 PM | #7 |
E46 + E90 + F80
193
Rep 2,895
Posts
Drives: E46 + E90 + F80
Join Date: Jul 2008
Location: Illinois
|
Nice collection of data that shares a lot of information!
Thanks for the review! I have been following your build for such a long time and it's great to hear you posting more about your driving experience with it! Enjoy the power and please let us know how the Ohlins are holding up
__________________
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
|
11-09-2012, 07:40 PM | #9 |
Captain
39
Rep 890
Posts |
These kits seem pretty solid. They always have great numbers. Is joe's the only VF car to put down over 600 at the tires though? I know he had much higher octane but that was the only difference correct? Or did he have a smaller pulley as well. (Stupid phone doesn't want to load older threads so I can't check lol)
|
Appreciate
0
|
11-09-2012, 09:03 PM | #10 | |
Banned
82
Rep 2,396
Posts
Drives: '08 E90 335i
Join Date: Jan 2012
Location: Northern NJ
|
Quote:
The VF650 (different pulley/tune & requires 93 octane) with a Completely Catless Exhaust can probably put down 590/600 WHP easily. |
|
Appreciate
0
|
11-09-2012, 09:25 PM | #11 | ||
Captain
39
Rep 890
Posts |
Quote:
|
||
Appreciate
0
|
11-10-2012, 06:28 AM | #12 | |
Lieutenant General
5611
Rep 11,070
Posts |
Quote:
|
|
Appreciate
0
|
11-10-2012, 08:21 AM | #13 | |
Major
122
Rep 1,202
Posts |
Quote:
If you think that 600whp is easily achievable on these cars with a simply bolt on VF kit and 93 octane then you are mistaken. Who knows, maybe it's possible on the EAS dyno and using "STD" correction factors (from what I've seen their dyno reads abnormally high in comparison to others, and I'm not sure why this "STD" trend has caught along to inflate the numbers when its "SAE" that's the most important imho) - but on a realistic dyno using SAE a bolt on VF kit on 93 is not even breaking into the 580whp+ range. I've seen E9X M3's from essentially every kit but Gintani/Gpower both on the dyno and at the track and I can tell you that 600whp in not an easy number to break on a REALISTIC dyno (nor are breaking 10's or trapping over 130mph - the stars need to align); and to do so your going to need at least 8.5psi, meth, lightweight wheels, full catless, race gas, and COLD weather [how is it that all of the E9X record holding M3's at the east coast are barely grazing into the 580whp range and maybe clipping 600 wheel, with meth racegas 18lb wheels and great 50 degree weather; but a lowly 620 kit with simply racegas is putting down over 600whp easily in 85 degree weather in California (meanwhile this VF car got absolutely walked by a bolt on E85 GTR and the very same M3's holding E9X platform records that are dynoing 20whp less are pulling 2-3 cars on bolt on E85 GTR's easily? - Just goes to show something about the dyno being used.] I've learned not to pay attention to this influx of dyno posting on this forum (especially with the debate between blowers and the new AA lineup) because they can be very misleading due to the ease of manipulation and variance (correction factors, weather, etc...) between them - timeslips are a much better indication of what the motor is putting down. Last edited by erm324; 11-10-2012 at 08:35 AM.. |
|
Appreciate
0
|
11-10-2012, 09:29 AM | #14 |
Lieutenant General
5611
Rep 11,070
Posts |
I agree that the trend to post dynos in uncorrected, std and sae is silly. You don't see this in other forums where people actually work on their own cars. Just post in SAE. STD is about 3% higher. Not sure what the AA Mustang dyno results are.
I like to know my own uncorrected result since that is what I am actually making that day, but for comparison purposes on the internet, I pay attention only to SAE. |
Appreciate
0
|
11-10-2012, 10:41 AM | #15 | |
Banned
82
Rep 2,396
Posts
Drives: '08 E90 335i
Join Date: Jan 2012
Location: Northern NJ
|
Quote:
So IMO the numbers add up, but if you're going to be suspect of anything it's the near 50 WHP the RPi X-Pipe yielded. The Akra Exhaust on this car certainly is the highest quality piece available, but there are other exhaust systems that eliminate the cats completely & offer greater gains. |
|
Appreciate
0
|
11-10-2012, 11:24 AM | #16 |
Lieutenant General
5611
Rep 11,070
Posts |
But if you read post #1, you will see that a VFE 620 with a catless x-pipe makes only 515 rwhp SAE, not 580 rwhp. Then read post #13 and tell us whether your 580 rwhp quote is uncorrected, or corrected to SAE or corrected to STD so it can have some meaning. If not, you might be leading us to believe that Joe@Trinity's dyno is over 10% more optimistic than e92involved's dyno or vice versa.
|
Appreciate
0
|
11-10-2012, 01:27 PM | #17 | |
Captain
22
Rep 644
Posts |
Quote:
__________________
|
|
Appreciate
0
|
11-10-2012, 01:35 PM | #18 | |
Captain
22
Rep 644
Posts |
Quote:
__________________
|
|
Appreciate
0
|
11-10-2012, 01:38 PM | #19 | |
Captain
22
Rep 644
Posts |
Quote:
__________________
|
|
Appreciate
0
|
11-10-2012, 04:19 PM | #20 |
Banned
116
Rep 2,682
Posts |
I'm sorry but those numbers are far from impressive with 7+psi of boost ... i put down 594 SAE with 93oct and at 7.5psi ( weather conditions were 50F 8% humidity ) ....
it's all in the tune ... |
Appreciate
0
|
11-10-2012, 04:55 PM | #21 |
Captain
22
Rep 644
Posts |
Wow thanks for the comment man. I'm sure conditions have nothing to do with the results. So does that mean that you have a better tune?
__________________
|
Appreciate
0
|
11-11-2012, 08:05 AM | #22 |
Major General
1607
Rep 8,074
Posts
Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Houston, TX
|
Why did the power fall off on the last 2 runs? Heatsoak? If track usage is in your future then that will be a problem.
In the summer, stock cars have heat problems if driven hard. Can't imagine it being any better bolting a s/c'er on it.
__________________
2018 F30 320iX Melbourne Red
2011 E90 M3 Monte Carlo Blue 2004 E46 M3 Imola Red 2000 E36/7 Z3 Steel Blue |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|