Difference between 5.5L V8 and 4.6L Bi-turbo V8
Is it true that the bi-turbo is being replaced by a single turbo in 2014?
Haven't heard of any engine changes in 2014 model since it was officially announced, although I do remember reading mention of single turbo in some articles last year. Most likely just speculation at the time.
The BT has been dynoed at 440hp and 516lbft stock (despite MB's claims), the big thing I notice was that the car will just HAUL off the line, it's the huge amounts of torque that make the difference. The BT also has phenomenal gas milage, check out the thread I made a while back, I routinely get 30mpg+ on my highway trips.
The BT has been dynoed at 440hp and 516lbft stock (despite MB's claims), the big thing I notice was that the car will just HAUL off the line, it's the huge amounts of torque that make the difference. The BT also has phenomenal gas milage, check out the thread I made a while back, I routinely get 30mpg+ on my highway trips.
If this is accurate, then enjoy those astonishing motors while you can. Possibly the end of an era.
If this is accurate, then enjoy those astonishing motors while you can. Possibly the end of an era.

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hp = 400hp x 1.17 = 468 bhp at the crank
torque = 460 x 1.17 = 538 lb-ft at the crank

I used to own an M3, and have done done a few rolls against an M3, and it's a massacre, honestly, I'm a HUGE BMW fan but the M3 in a straight line gets 'merked' by the torque in this thing, obviously on a track it would be the complete opposite.
Last edited by np888; Feb 17, 2013 at 12:32 PM.
The Best of Mercedes & AMG
It's a real shame that there's no Mercedes tuner that matches the warranty, much like all of BMW's tuners. I can't understand how DINAN and Alpina can both match the BMW warranty and are still significantly cheaper than Renntech or Kleemann.
It's a real shame that there's no Mercedes tuner that matches the warranty, much like all of BMW's tuners. I can't understand how DINAN and Alpina can both match the BMW warranty and are still significantly cheaper than Renntech or Kleemann.
If this is accurate, then enjoy those astonishing motors while you can. Possibly the end of an era.

MIR in Budds Creek Maryland best hook
Capital Raceway near Crofton Maryland decent hook
Mason Dixon in Boonesboro Maryland decent hook
75-80 Dragway Monrovia Maryland Used to be bad, new management may have made it better.
All these tracks have a web site where you can access the schedule
Go early, like at the opening, as the predominance of street cars with street tires will destroy any track prep very quickly. If you want maximum traction go on a normal race day and enter the lowest class available. You will lose in the first round but you will have at least 3 runs on a decent starting line because most all the cars running will be running on drag slicks.
Go early, like at the opening, as the predominance of street cars with street tires will destroy any track prep very quickly. If you want maximum traction go on a normal race day and enter the lowest class available. You will lose in the first round but you will have at least 3 runs on a decent starting line because most all the cars running will be running on drag slicks.
I'll definitely try it in both Sport with ESP off and in Dyno mode.





