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VTT Stage 2 Twin Scroll results, FINALLY!!

VargasTurboTech

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Ok guys, so working with Jon Lund, we finally got this semi car dialed in to where we are happy with the power, and think its safe. It was a balancing act, because we believe, and Jon concurs if we did not have the limits of the stock motor, we could easily hit 520WHP/520WTQ with out issue, with the same flat TQ plateau you see here. We will be playing with it more, prob see more power, and will take it to the track next week.:paddle:

We bring boost in semi slowly on purpose in the midrange to spare the rods, and rod bearings. Its making about 27 psi midrange tapering up to 31 psi up top.

Where we stopped was: 462WHP / 439WTQ STD We also include uncorrected numbers, and SAE numbers as well as Area under the curve. Personally I have never seen an Area under the curve graph like that, its basically a block of power from one end the other. Its nuts!

First graph is just the TS by itself
Next is TS Vs SS
3rd is TS Vs EFR 7163 which would seem to be its closest competitor.

Next is TS Area under the curve
SS Area under the Curve
SS Vs TS Area Under the Curve
Multiple runs to show how consistent the car is as we played with it.

The results speak for themselves, lets not forget this upgrade is $1999...:D


This was of course done on Jon's awesome tuning. Full specs are as follows:

2015 EBM AT PP
VTT Stage 2 Twin Scroll Turbocharger
VTT Silicone Passenger side inlet
VTT Silicone Charge pipes
TS Race port BOV
ATP Downpipe
CP-e PI Aux fuel kit
MRP Street exhaust
VTT Single shot LPFP (more on this soon)
100% E85
Lund Tuning

We will be bringing Marks Car down with the built motor soon, will dyno his SS, then put his TS on it, and really turn it up. Then we should see what this bad boy can do.

So far beyond pleased with the results. Break down

TS hits 400WTQ at 2850
SS hits 400WTQ at 4100 (+1250RPM)

TS holds 460WHP at 6500RPM (+26WHP)
SS holds 434WHP at 6500RPM
No loss or power on the top end! :headbang::cheers:

Huge Thanks to Jon, at Lund for taking the time to dial this in slowly, and surely. All while being a perfect gentleman. Humble, and very easy to work with. Thanks again buddy! :cheers::first:

I think these results make it pretty clear VTT S2 for EBM is :first:

Thanks as always for the support!
S2 TS 462_439 STD.jpg
SS vs TS STD.jpg
TS Vs EFR STD.jpg
S2 TS 466_443 Uncorrected.jpg
SS vs TS Uncorrected.jpg
TS vs EFR Uncorrected.jpg
S2 TS 449_427 SAE.jpg
SS vs TS SAE.jpg
TS vs EFR SAE.jpg
TS AUC.jpg
SS AUC.jpg
SS VS TS AUC.jpg
Multi run.jpg
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jbailer

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Congrats, it really looks nice and some fine tuning! I like that it's peaking at 6500 and still pulling strong to redline. That thing is going to be a blast at the track.
 

perfweld

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Cant wait to get on it with my car !!! I see my goal of 10.40s will definitely be doable with that much added power at low engine speed with the Twin Scroll housing, hooking the car is gonna take a really good track now !!! Great Job Tony and Jon !!!
 

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SYK

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That is an awesome graph and result. Vargas you guys truly did nice work here.

Quick question: What kind of reliability testing has this turbo been subject to? Beyond 1 year warrantied period, what kind of life cycle would you expect from this unit? I know accelerated lifecycle testing doesnt always represent the right result but from your experience from working with previous BMW platforms, what kind of useful life do they serve?
 

Juben

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That torque curve looks awesome! I got busy around the holidays and forgot to snatch one of these up while on sale. Are you going to be running any Christmas specials?
 
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VargasTurboTech

VargasTurboTech

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VargasTurboTech

VargasTurboTech

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That is an awesome graph and result. Vargas you guys truly did nice work here.

Quick question: What kind of reliability testing has this turbo been subject to? Beyond 1 year warrantied period, what kind of life cycle would you expect from this unit? I know accelerated lifecycle testing doesnt always represent the right result but from your experience from working with previous BMW platforms, what kind of useful life do they serve?
I have had one our shop car for over a year over 10K miles beating on it very hard. hundreds, and hundreds of dyno, and street pulls. Its still the same turbo on the car now. I just put it into the TS housing. Mark has many many 1/4 passes on his, and daily drives it. We have had 0 failures reports of all sold. The only one we go back was from an engine failure, and it was just to make sure it was not damaged.
 
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TEXAS HEAT

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Nice reverse boost taper on the tuning strategy. Soften the initial hit, then let it sing up top. The results I was hoping for! Congrats! Looks to be a really nice set-up!
 

juan_tony1

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Did I completely miss eta on housing??
 
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VargasTurboTech

VargasTurboTech

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Did I completely miss eta on housing??
Yes you did, posted in the other thread. Mid to late January we should have them.
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