ESS VT1-535 Dyno Results: 520whp, 341wtq SAE, 5.0 PSI Boost

[E90///M3`]

Late last year I changed my x-pipe and went to an EAS dyno day being held with my friends from MFEST. I always wanted to get back to the same dyno as my initial runs to see the bump in power, but instead I decided to see how'd i'd do at the EAS dyno day. Anyways... this past weekend I got the chance to get back to the original dyno facility to see the difference from my baseline and also to see the difference between the two dynos.

My car is a 2008 BMW M3, 6MT with an ESS VT1-535 on it. I bought the kit with a 0.5 PSI upgraded pulley. But other than that, the kit is an off the shelf ESS VT1 kit. PG came along to help with the dynos, do his usual data logging thing, and he measured my supercharger pulley so people to know definitively without a doubt what I'm running (since i've been accused of hiding facts )

My baseline was 482whp and 320wtq SAE (490whp and 326wtq STD). The only thing that changed on the car prior to going to the EAS dyno day was that I swapped to an Arqray Muffler and had a custom x-pipe with both CAT deletes. At the EAS dyno day, the car put out 526whp and 342wtq SAE (540whp and 350wtq STD). Most people thought these numbers were way too high for an ESS VT1 kit. So it's yet another reason to go back to the same dyno as before and let PG do all of his data logging thing.

Even at this dyno, the car put out some pretty big numbers. The results are a little bit lower than the EAS dyno, but not by a whole lot. Run-3 produced the same results as Run-4, but the boost looked really different. We asked the dyno operator why this happens, and he didn't really know. You're welcome to download the files through the dyno database and take a look for yourself.

Car and Modifications:

• 2008 BMW M3
• ESS VT1-535 Supercharger
• 5.00 PSI Boost
• 99mm Supercharger Pulley
• Arqay Exhaust
• Both CAT Delete
• Custom XPipe
• 6MT
• 91 Octane

Conditions:

• Temparature:: 78.63 degrees F
• Atmospheric pressure: 29.14 inHg
• Humidity: 9%
• SAE Correction: 1.01
• STD Correction: 1.03
• Uncorrected: 1.000

Results:

• SAE Corrected: 521whp @ 8350 RPM, 341wtq @ 7280 RPM
• STD Corrected: 534whp, 349wtq
• Uncorrected: 517whp, 338wtq

Dyno Database:

• Dyno files are available from the links below.
• SAE Corrected
• STD Corrected
• Uncorrected

Individual Dyno Results:

Individual dyno results are shown below. SAE corrected results are shown twice, using two different sources. The first source (SAEd) are the SAE corrected results straight from the Dynojet. The second source (SAEk) of SAE corrected results are obtained by using the Kestral 4500 weather station data for each individual dyno run and running it through an independent SAE correction formula. This ensures that the dyno results are accurate and can be independently audited and verified for authenticity and accuracy. The legend below has the following meaning:

• Dyno Run: Dyno run file
• Boost Avg: Boost calculated using trend line. This is the "official" boost for this dyno run.
• Boost Peak: Peak boost observed on this dyno run.
• Temp(F) = Temperature (Farenheit)
• RelH = Relative Humidity
• Pressure(Hg) = Barometric Pressure
• DA(ft) = Density Altitude
• WHP(unc) = Uncorrected wheel horsepower
• WTQ(unc) = Uncorrected wheel torque
• WHP(SAEd) = SAE Corrected Horsepower using Dynojet weather station.
• WTQ(SAEd) = SAE Corrected Torque using Dynojet weather station.
• WHP(SAEk) = SAE Corrected Horsepower using Kestrel 4500 weather station.
• WTQ(SAEk) = SAE Corrected Torque using Kestrel 4500 weather station.

* Entry used for the Dyno Database

Pictures
Boost Connection




Pulley Measurement




Results
521whp, 342wtq SAE




534whp, 349wtq STD




Boost Analysis

[biglare]

Regardless of what anyone says, very nice numbers Jason! I
Need to hit both thise dynos with the M3 and Baby M! What's the DB reading on that Dyno run??? Haha!

[M3ryder55]

thats great for a vt1

[Keik E92 M3]

wow nice numbers!

[Merked M3]

As if the temptation to go FI isn't bad enough already, you go am make us all want go get a catless x-pipe too!

I am going to have to physically restrain myself from looking at Challenge race plus X-pipes now!!!!

[E90///M3`]

Originally Posted by biglare

Regardless of what anyone says, very nice numbers Jason! I
Need to hit both thise dynos with the M3 and Baby M! What's the DB reading on that Dyno run??? Haha!

ask PG... he thinks i'm insane for running my exhaust like this. i'm pretty sure well over 115db. hahaha

Originally Posted by M3ryder55

thats great for a vt1

thank you sir.

Originally Posted by keikdasneak

wow nice numbers!

thank you kindly.

Originally Posted by Merked M3

As if the temptation to go FI isn't bad enough already, you go am make us all want go get a catless x-pipe too!

I am going to have to physically restrain myself from looking at Challenge race plus X-pipes now!!!!

just do it! my custom pipe made gobs of power on my car... so anyone wondering if they'll gain power... i know i did! haha

[CPWINCH]

THAT POWERBAND! winning

[IMG]

[flipm3]

Awesome power! This goes to show how much bang for your buck you get with the VT1-535 then adding a nice XPipe.

I am curious, did PG log IAT's by any chance?

I would be very interested in seeing the IATs between the VT1 and VT2 kits to see the effects of the intercooler and performance benefits.

[GOLFFRR]

Jason car is legit!

[m33]

Solid numbers

[E90///M3`]

Originally Posted by CPWINCH

THAT POWERBAND! winning

Originally Posted by img

Originally Posted by m33

Solid numbers

thanks guys!

Originally Posted by flipm3

Awesome power! This goes to show how much bang for your buck you get with the VT1-535 then adding a nice XPipe.

I am curious, did PG log IAT's by any chance?

I would be very interested in seeing the IATs between the VT1 and VT2 kits to see the effects of the intercooler and performance benefits.

i didn't see any equipment he could've used to do that. he had his little weather station, camera, measuring tool, and his cell phone to take videos. i have videos also but it would only be to show how loud the car is hahaa

Originally Posted by GOLFFRR

Jason car is loud!

fixed.

thank you sir!

[GOLFFRR]

lol yes that is true, def loudest car I have ever heard on the street! I had to turn up my radio in my car and I was 4 cars behind you in the caravan!!! lol

[Sal@AUTOcouture]

Very nice

[erm324]

sicks numbers!!

[tha_good_life]

I might have to re-decide which kit I want after seeing this!

[Singletrack]

Congrats man! That's a ton of power!

[Bluesummer]

hmmm Just the right amount of power to play around daily

[Alekshop]

Greta results ! That Dyno seems to show pretty high numbers consistently ... Good Job!

[creaminz]

I'm surprised his beast didnt put down 1000hp, it sure as hell sound like 1000hp car though

Great numbers Jason, this car is Fast!!

[///M3Lover]

Jason, you need BBK soon to stop that beast

Awesome awesome numbers.

[E90///M3`]

Originally Posted by GOLFFRR

lol yes that is true, def loudest car I have ever heard on the street! I had to turn up my radio in my car and I was 4 cars behind you in the caravan!!! lol

Originally Posted by bapesta206

I might have to re-decide which kit I want after seeing this!

personally i'd love to upgrade to a VT-2... maybe next year

Originally Posted by Sal@AUTOcouture

Very nice

Originally Posted by erm324

sicks numbers!!

Originally Posted by Singletrack

Congrats man! That's a ton of power!

thanks everyone

Originally Posted by Bluesummer

hmmm Just the right amount of power to play around daily

yeah, but i want more... haha

Originally Posted by Alekshop

Greta results ! That Dyno seems to show pretty high numbers consistently ... Good Job!

i noticed that also...

Originally Posted by creaminz

I'm surprised his beast didnt put down 1000hp, it sure as hell sound like 1000hp car though

Great numbers Jason, this car is Fast!!

hahaha sounds... it's the key word.

thanks for he compliments bro, where've you been? quality time with the wifey no time for the homies. haha

Originally Posted by ///M3Lover

Jason, you need BBK soon to stop that beast

Awesome awesome numbers.

thanks Henry... you back from the motherland?