Geno51

My best launches have always been. traction off, S+ Break boost it to about 2k rpm and let it rip.

Just ordered 4 new MPSS hope this helps and the next track day is march 17th

Ralcbah

That's awesome! Well done. Thing must be a beast

Geno51

Its like a whole new car

Wickdwagon

Those are some really impressive numbers...we are running very similar setups and that is a 5% increase in HP number and a 4% increase on torque! Over my baseline.

Amg63-

Would putting traction in sport handling mode possibly help to minimize wheelspin without cutting any power? I always thought this was the best way to launch it.

gaspam

he was on 91 oct from what i read so not same

Amg63-

Would 93 make that much of a difference?

Wickdwagon

Dyno mode and 2500 RPMs suspension stiff as possible is the best launch mode.

gaspam

every car is different, but i saw weistec 93 tune make 30 whp more than 91 tune on their shop car's dyno

91 more likely to knock so timing/boost usually turned down more for 91 vs 93 tune

Amg63-

That means he could be making 675whp and near 800wtq on 93?

I would love to see that happen on stock turbos!

Also keep in mind STD vs SAE correction factors, SAE reads lower.

Geno51

The gains under the curve are simply crazy

+141 hp
+184 lbft

at 4100 rpm
Oh and this is with just 17.4 lbs of boost lol

Amg63-

Man these turbos can go up to 19psi for max power, still room for more.

chiromikey

I don't know that I've seen proof that our ecu/turbos will hold 19psi. I've seen spikes but never a log showing a consistent 19psi. I hope I'm wrong!

gaspam

from all my logs i rarely hit 19psi... conditions have to be perfect (low temp which is almost never in FL, low humidity which is also almost never in FL )

I think i have hit 19 psi maybe 3 times in 1 yr of logging my renntech/dp tuned.... 17-18 seems to be normal max i hit

Geno51

Just was told they can tune via mail order now also based off my tune. But again it's not the same as being custom tuned like I was. Sounds like for the most part you would get the same tune I'm running but it would not be dialed in like it was on my car.

At at least it's another option for people to look at. But anyone who's close to phx they would much rather do a full custom tuning

TMC M5

It is my understanding (poking around the WINpep software with the owner of a performance shop that had a Dynojet) that the STD factor can be manipulated based on what the dyno operator manually inputs as the altitude of the dyno location. He showed me how the dyno numbers would change based on that input. The SAE correction was based on actual readings for the ambient conditions and would not be impacted by operator input. So in theory if your dyno location was below sea-level (not likely) and that altitude was input correctly, STD would read lower than SAE.

Amg63-

i looked into this, and actual readings based on the ambient conditions is "uncorrected"

SAE is assuming less favourable weather conditions than STD so it reads between 2-4% lower on the dyno.

Also located in Toronto here so I don't think this would apply to my case. The shop said the SAE factor they now switched over to reads lower than STD which they used to use before.

Geno51

I have no idea what you guys are talking about. What correction does USA use vs Canada

Amg63-

it depends on what the dyno operator decides to use, irrelevant of Canada or US

TMC M5

I didn't say SAE figures aren't corrected numbers, it is obviously a correction factor based on ambient conditions. I was saying there is manual input involved (at least in the old WINpep software) that allowed the STD factor to be changed based on altitude. Whereas the SAE correction factor had no ability to be manipulated through the software. You could manipulate the SAE correction through making the sensor read warmer more humid air while the car is actually being run in cool dry air.

Amg63-

yes I understand this.

Also updated the post on location as I'm not below sea level where your theory would apply.

shop had said in our case, SAE correction factor reads lower for us.

shardul

iTrader: (1)

Good power with simple bolt on mods!

Roseylv

wow. perhaps we can get a group custom tune weekend if your tuner is willing to go on a tour. Rent a dyno etc. Could be pretty reasonable :-). Thoughts?

chiromikey

Get a group to come out here and we'll make it an AMG dyno/track day shootout!

Roseylv

6.5 hr drive from los angeles w/ our rock hard seats doesn't sound that fun lol. we can Fly that tuner out here and split his expenses. now that sounds doable. lol