F55/F56 BMS stage 1 + Exhaust Mod?
#1
BMS stage 1 + Exhaust Mod?
Been off the forums for a while cause of work, but I am strongly considering doing what I heard some talk about months back: a BMS "Tuner" and a "straight piped" exhaust that basically goes from the cat, or maybe even the manifold, back.
Has anyone done a mod like that/can anyone give some feedback? I remember seeing some really impressive dyno numbers, but I am looking for road feeadback, and especially any related issues/gremlins. Does freeing the exhaust back-pressure that much in order to get some of that lost power cause the engine to throw you random engine codes/02 sensor problems? Anything else kind of like that maybe?
Thank in advance!
Has anyone done a mod like that/can anyone give some feedback? I remember seeing some really impressive dyno numbers, but I am looking for road feeadback, and especially any related issues/gremlins. Does freeing the exhaust back-pressure that much in order to get some of that lost power cause the engine to throw you random engine codes/02 sensor problems? Anything else kind of like that maybe?
Thank in advance!
#2
i cut out my exhaust and put dual-4" pipes. as for sound, i love it. it's got a throaty sound and after a couple thousand miles on it, it sounds great. it only gets louder when on WOT, and in sport mode, it pops like crazy, which is always fun.
no error codes. the de-exhausting ONLY affected the sound of the car...nothing as it relates to engine codes.
no error codes. the de-exhausting ONLY affected the sound of the car...nothing as it relates to engine codes.
#5
i got m quebed cat delete down pipe and no second converter reso or muffler. feels good in the midrange drops off at hi rpms. i shift at 5500 in the 1-2 and 2-3 shifts then 6200 at the 3-4 shift then impretty much exeeding all speed limits. i dont like throwing cherry bombs out my tailpipe on decelleration though. oh yeah i got the bms stage 1 set at +5psi with 98octane gas.
#7
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#8
I'll be emailing Terry tomorrow to get facts from him.
Just wonder what the recommended +- would be based on the octane. In FL we have up to 93 on most. Perhaps at least +4 would be the most.
http://www.n54tech.com/forums/showthread.php?t=15536
#9
#10
#11
Been off the forums for a while cause of work, but I am strongly considering doing what I heard some talk about months back: a BMS "Tuner" and a "straight piped" exhaust that basically goes from the cat, or maybe even the manifold, back.
Has anyone done a mod like that/can anyone give some feedback? I remember seeing some really impressive dyno numbers, but I am looking for road feeadback, and especially any related issues/gremlins. Does freeing the exhaust back-pressure that much in order to get some of that lost power cause the engine to throw you random engine codes/02 sensor problems? Anything else kind of like that maybe?
Thank in advance!
Has anyone done a mod like that/can anyone give some feedback? I remember seeing some really impressive dyno numbers, but I am looking for road feeadback, and especially any related issues/gremlins. Does freeing the exhaust back-pressure that much in order to get some of that lost power cause the engine to throw you random engine codes/02 sensor problems? Anything else kind of like that maybe?
Thank in advance!
#12
#13
Do you have screenshots of this setup on the software?
Just placed my order of the Data Cable after speaking to Terry and wanted a basic understanding of how to tweak things within the software.
#14
Settings
Boost Safety +5psi
Fuel Open Loop 50
That's all that is needed some of the guys are running +7psi but without higher octane fuel that's as far as I go. The wife drives the car 99%of the time she says it is a world of difference over factory 🚗
#15
After I installed the FF connector and upgraded the firmware I used these settings running 93octane
Boost Safety +5psi
Fuel Open Loop 50
That's all that is needed some of the guys are running +7psi but without higher octane fuel that's as far as I go. The wife drives the car 99%of the time she says it is a world of difference over factory 🚗
Boost Safety +5psi
Fuel Open Loop 50
That's all that is needed some of the guys are running +7psi but without higher octane fuel that's as far as I go. The wife drives the car 99%of the time she says it is a world of difference over factory 🚗
Oh yeah, as soon as you plug that Stage 1 up it is already a world of difference. I'm sure 1-2 more will at least give you more of an edge. I wouldn't do more than that, though.. Wouldn't want the engine to go boom. 93 octane is as high as we've got.
#16
After I installed the FF connector and upgraded the firmware I used these settings running 93octane Boost Safety +5psi Fuel Open Loop 50 That's all that is needed some of the guys are running +7psi but without higher octane fuel that's as far as I go. The wife drives the car 99%of the time she says it is a world of difference over factory dde97
#17
^^^ You will find the software install link on the 1st post.
FF connector = http://www.burgertuning.com/USB_Cable_Extension.html
Settings will be found on the software after it is installed.
I don't have details yet, as I don't have the cable.. But, I will create a how-to and post it when I'm able to do everything next week (when the cable arrives and work permits)
EDIT: Correct this post if I'm wrong or if I've given wrong information.
#18
#20
^^^ Plenty of info there! Although, the guy running 7psi is on 98 or 100 octane.
#21