Vargasturbotech
Ready to race!
- Location
- Bay Area, CA
Matt was nice enough to bring his car down for some back to back testing this morning. Here is what we did, I had our car parked on the dyno, he arrived, I warmed it up and ran it uncorrected. It made 510WHP/442WTQ, immediately after the run it was unstrapped, and his car was pulled on. No changes made to the dyno in any way. Within 5 minutes of running our car, we ran his car it made 464WHP/430WTQ but the big take away was it spooled almost 1000RPM later. We ran 33psi and 17degrees of advance peak. He ran 32psi, and I believe 9 degrees of timing. His car was auto-shifting itself at 7K which why his graphs are short.
At this point, I gave him the keys to our car and said dynos are on thing, go drive it for yourself. He took it out for about 20 minutes and came back thoroughly impressed.
By that time his tuner had time to see the dynos and wanted to make a few changes. I had unstrapped his car but said we can restrap, and run it again no problem, I wanted him to be able to run it as many times as he wanted. For the second run, I know they ran around 13 degrees of timing, not sure what they bumped PSI to if any change. Matt can let you know that, and if the tuner allows can post the log.
That run it made 474WHP/447WTQ 10WHP more peak power, slightly better spool, but still not a huge difference spool wise.
What is below is all the graphs, our run vs his first run in RPM, Speed, and time (time is great for showing time to TQ on a dyno which is not the same as spool, it gives more of a feel to how the car will spool on the street as its how long you are waiting for the boost to come in). The last graph is all 3 runs displaying conditions so you can see they are almost identical.
Time difference to Peak TQ bewteen our run, and his two runs.
Run 1 3.07 Seconds
Run 2 2.28 Seconds
After that same with our run, and his second run overlaid with his first, and ours.
I am sure this isn't going to make everyone happy, people are going to find something to complain about. But the bottom line is a $2000 journal bearing turbo just out spooled a DBB $4000 turbo kit by almost 1000RPM and made more peak power. I have no doubt if he ran 17 degrees it would have made close to the same peak power, but the area under the curve is what makes a car fast, not just a peak dyno number.
Matt's car is on 100% E85, same PR MPI kit as our car, custom Eurodyne tune, etc. This is about as apples to apples between kits as you will get.
One small side note, our car is running 3 yes THREE RS3 coils, and 1 ONE stock coil. Trying to solve the high RPM Misfire we ordered some coils, well they sent us 3 right ones, and one wrong one...
I have attached a graph (yellow) last as to what our car looks like when it pulls to 7400, I had to turn the boost down to get it to do it, hopefully this final coil will fix it, and we can get it back to the track, and run max boost to 7400...
Take away seems to be, peak power with similar timing would be about the same, but the spool is massively improved with our turbo, which comes at half the cost of the Boss600 kit.
Curious to see what the trolls have to say about this one. Matt please post any details I may have missed, got wrong etc. Also please post your driving impression of the car. Thanks again for coming down sir
At this point, I gave him the keys to our car and said dynos are on thing, go drive it for yourself. He took it out for about 20 minutes and came back thoroughly impressed.
By that time his tuner had time to see the dynos and wanted to make a few changes. I had unstrapped his car but said we can restrap, and run it again no problem, I wanted him to be able to run it as many times as he wanted. For the second run, I know they ran around 13 degrees of timing, not sure what they bumped PSI to if any change. Matt can let you know that, and if the tuner allows can post the log.
That run it made 474WHP/447WTQ 10WHP more peak power, slightly better spool, but still not a huge difference spool wise.
What is below is all the graphs, our run vs his first run in RPM, Speed, and time (time is great for showing time to TQ on a dyno which is not the same as spool, it gives more of a feel to how the car will spool on the street as its how long you are waiting for the boost to come in). The last graph is all 3 runs displaying conditions so you can see they are almost identical.
Time difference to Peak TQ bewteen our run, and his two runs.
Run 1 3.07 Seconds
Run 2 2.28 Seconds
After that same with our run, and his second run overlaid with his first, and ours.
I am sure this isn't going to make everyone happy, people are going to find something to complain about. But the bottom line is a $2000 journal bearing turbo just out spooled a DBB $4000 turbo kit by almost 1000RPM and made more peak power. I have no doubt if he ran 17 degrees it would have made close to the same peak power, but the area under the curve is what makes a car fast, not just a peak dyno number.
Matt's car is on 100% E85, same PR MPI kit as our car, custom Eurodyne tune, etc. This is about as apples to apples between kits as you will get.
One small side note, our car is running 3 yes THREE RS3 coils, and 1 ONE stock coil. Trying to solve the high RPM Misfire we ordered some coils, well they sent us 3 right ones, and one wrong one...
I have attached a graph (yellow) last as to what our car looks like when it pulls to 7400, I had to turn the boost down to get it to do it, hopefully this final coil will fix it, and we can get it back to the track, and run max boost to 7400...Take away seems to be, peak power with similar timing would be about the same, but the spool is massively improved with our turbo, which comes at half the cost of the Boss600 kit.
Curious to see what the trolls have to say about this one. Matt please post any details I may have missed, got wrong etc. Also please post your driving impression of the car. Thanks again for coming down sir
Attachments
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VTT Production Vs Boss 600 run 1 3K.jpg -
VTT Production Vs Boss 600 run 1 3500.jpg -
VTT Production Vs Boss 600 run 1 4K.jpg -
VTT Production Vs Boss 600 run 1 4500.jpg -
VTT Production Vs Boss 600 run 1 70MPH.jpg -
VTT Production Vs Boss 600 run 1 TIME.jpg -
VTT Production Vs Boss 600_3KRPM.jpg -
VTT Production Vs Boss 600_3500RPM.jpg -
VTT Production Vs Boss 600_4KRPM.jpg -
VTT Production Vs Boss 600_4500RPM.jpg -
VTT Production Vs Boss 600_4500RPM_2.jpg -
VTT Production Vs Boss 600 run 2 TIME.jpg -
VTT Gc Vs Boss 600 all runs conditions.jpg -
IMG_7973.JPG
