340i xDrive Dyno Questions

breaker1097 · 10-25-2016, 07:30 AM

Quote:

Originally Posted by chaungo

Uh, I don't think that's low at all for AWHP/AWTQ. My N55 dynos at 350AWHP/420AWTQ FBO minus IC on Map 6, if your dyno is at the wheels, that's really good for just map 1 and catless DP.

The only reason I felt it was low is because a lot of 340's with JB4+Intake Only have dyno'd with more whp. Maybe I just hyped myself up too much haha,

and awesome numbers on your n55 BTW.

FSociety · 10-25-2016, 07:48 AM

Quote:

Originally Posted by breaker1097

I was using 93 Octane (From Jersey)

I might do some more runs this week both with the JB4 Off and On, and I think im gonna buy the bluetooth kit so I can log it on my phone etc.

They put it in Sport + so DSC was off, And I'm not 100% sure what gear they used, I think 4th or 5th but don't quote me on that.

Sport+ doesnt disable DSC completely, so press n hold DSC button until you see DSC OFF. So this is the reason you're seeing a lot less power

Yes def get the bluetooth kit so you can do everything (logging as its most important). What day this week ? PM i might join and prob Luminous.

breaker1097 · 10-25-2016, 07:53 AM

Quote:

Originally Posted by FSociety

Sport+ doesnt disable DSC completely, so press n hold DSC button until you see DSC OFF. So this is the reason you're seeing a lot less power

Yes def get the bluetooth kit so you can do everything (logging as its most important). What day this week ? PM i might join and prob Luminous.

Let me know! I'll contact the owner and see if we can get a group deal going.

And you think that's why I'm seeing a lot less power? How so, Sorry i'm just confused with that.

Blk340i · 10-25-2016, 08:14 AM

Quote:

Originally Posted by breaker1097

Let me know! I'll contact the owner and see if we can get a group deal going.

And you think that's why I'm seeing a lot less power? How so, Sorry i'm just confused with that.

I'm in as I'm local as well. Let me know.

lens · 10-25-2016, 08:25 AM

Quote:

Originally Posted by breaker1097

The only reason I felt it was low is because a lot of 340's with JB4+Intake Only have dyno'd with more whp. Maybe I just hyped myself up too much haha,

and awesome numbers on your n55 BTW.

Yeah normally the dyno for the 340i that you see are all RWD unless written xdrive. Since xDrive needs to be dyno'd AWD, you have drivetrain loss (normally 20-25% depending on dyno, vs 10-15% RWD) that's why you'll see much lower numbers on xdrive. But the good news is, xDrive is able to put all the power to the ground to a certain extent until you hit about 450AWHP/AWTQ.

But still, I can tell you, 350AWHP/404AWTQ is very good as well. AWD is very hard to hit 400AWHP, and you're very close. On a roll, if you pull vs other cars, there's only a few that can keep up, against S4/S5/RS5/C450/CLA45/5.0 you'll easily pull away (I know because I did vs all of them

)

Oh yeah, forgot to add, you'll probably get more power, once you go FBO and JB4 comes out of BETA. Map 6, up the boost and you'll probably be 400. The turbo on the B58 is about 10% bigger than the N55 so I think you may be able to or somewhere very very near.

breaker1097 · 10-25-2016, 08:36 AM

Quote:

Originally Posted by chaungo

Yeah normally the dyno for the 340i that you see are all RWD unless written xdrive. Since xDrive needs to be dyno'd AWD, you have drivetrain loss (normally 20-25% depending on dyno, vs 10-15% RWD) that's why you'll see much lower numbers on xdrive. But the good news is, xDrive is able to put all the power to the ground to a certain extent until you hit about 450AWHP/AWTQ.

But still, I can tell you, 350AWHP/404AWTQ is very good as well. AWD is very hard to hit 400AWHP, and you're very close. On a roll, if you pull vs other cars, there's only a few that can keep up, against S4/S5/RS5/C450/CLA45/5.0 you'll easily pull away (I know because I did vs all of them

)

Oh yeah, forgot to add, you'll probably get more power, once you go FBO and JB4 comes out of BETA. Map 6, up the boost and you'll probably be 400. The turbo on the B58 is about 10% bigger than the N55 so I think you may be able to or somewhere very very near.

Yeah the drivetrain loss is definitely what's throwing me off, this is my first AWD car haha. I'm Definitely not disappointed with the numbers at all, I'm over 400 HP to the crank correct? I'm excited to see what the JB4 can do once out of Beta, as well as the new Active Autowerke Tune as well. Awesome to know you pull on all those! haha

breaker1097 · 10-25-2016, 08:37 AM

Quote:

Originally Posted by Blk340i

I'm in as I'm local as well. Let me know.

Should I start a new thread for a dyno night? Haha

FSociety · 10-25-2016, 10:02 AM

Quote:

Originally Posted by breaker1097

Let me know! I'll contact the owner and see if we can get a group deal going.

And you think that's why I'm seeing a lot less power? How so, Sorry i'm just confused with that.

Yep, Sport+ still will cut some power when it sees some slip. Having full DSC off is the way for Dyno. Hey we can try and see for yourself. Also, not every 93 station is the same and stay away from Sunoco/Hess that are not TopTierGas.com rated stick with Costco, Shell, BP, 76, Valero, Citgo, Exxon and also busy or clean stations.

Quote:

Originally Posted by breaker1097

Should I start a new thread for a dyno night? Haha

I wouldn't, too much responsibility in your hands and theres a lot of ppl who come up with last minute excuse (No Show) and you'll be responsible for that $$ of that car that didn't show up. Trust me, I did it twice and never again.

lens · 10-25-2016, 10:05 AM

Quote:

Originally Posted by breaker1097

Yeah the drivetrain loss is definitely what's throwing me off, this is my first AWD car haha. I'm Definitely not disappointed with the numbers at all, I'm over 400 HP to the crank correct? I'm excited to see what the JB4 can do once out of Beta, as well as the new Active Autowerke Tune as well. Awesome to know you pull on all those! haha

Yeah, you're around 435-440HP at the crank at 20% drivetrain loss.

breaker1097 · 10-25-2016, 12:34 PM

Quote:

Originally Posted by FSociety

Yep, Sport+ still will cut some power when it sees some slip. Having full DSC off is the way for Dyno. Hey we can try and see for yourself. Also, not every 93 station is the same and stay away from Sunoco/Hess that are not TopTierGas.com rated stick with Costco, Shell, BP, 76, Valero, Citgo, Exxon and also busy or clean stations.

I wouldn't, too much responsibility in your hands and theres a lot of ppl who come up with last minute excuse (No Show) and you'll be responsible for that $$ of that car that didn't show up. Trust me, I did it twice and never again.

Well, looks like I'll be going on the Dyno again with this week with DSC off haha.

Thanks for the input!

breaker1097 · 10-25-2016, 12:35 PM

Quote:

Originally Posted by chaungo

Yeah, you're around 435-440HP at the crank at 20% drivetrain loss.

Def Can't Complain about that