2009 BMW 335i 726 AWHP

doublespaces

Administrator
Oct 18, 2016
8,869
AZ

2009 BMW 335i xDrive
xDrive fully engaged (xDelete custom setting used to direct exactly 50% to the front diff and 50% to the rear diff) for accurate awhp and torque reading.
Darton sleeved block, JE pistons 9.5:1 CR & JE wrist pins,
Manley I-beam tuff rods,
Ported cylinder head with Ferrera springs & retainers and ARP head studs.
Custom pinned crank hub to crank snout and VTT crank bolt capture.
Calico coated main bearings and King rod bearings.
Custom triple Walbro 450s with port injection, external fpr, custom dual fuel feed lines to supply the port rail and hpfp separately.
Full E85 (E80 conc) pump fuel.
VM topmount turbo kit from @[email protected]
EOS intake manifold from @EOSpeed
Precision Gen2 6466 ball bearing @ 35 psi
Built 6-speed auto transmission with xHP tcu flash.
Tuning: DocVu Tuning with JB4 + MHD backend flash.
 

Rene08

New Member
Jul 16, 2019
1

2009 BMW 335i xDrive
xDrive fully engaged (xDelete custom setting used to direct exactly 50% to the front diff and 50% to the rear diff) for accurate awhp and torque reading.
Darton sleeved block, JE pistons 9.5:1 CR & JE wrist pins,
Manley I-beam tuff rods,
Ported cylinder head with Ferrera springs & retainers and ARP head studs.
Custom pinned crank hub to crank snout and VTT crank bolt capture.
Calico coated main bearings and King rod bearings.
Custom triple Walbro 450s with port injection, external fpr, custom dual fuel feed lines to supply the port rail and hpfp separately.
Full E85 (E80 conc) pump fuel.
VM topmount turbo kit from @[email protected]
EOS intake manifold from @EOSpeed
Precision Gen2 6466 ball bearing @ 35 psi
Built 6-speed auto transmission with xHP tcu flash.
Tuning: DocVu Tuning with JB4 + MHD backend flash.
Any idea on who built his auto trans or what upgraded clutches he used ?
 
Oct 27, 2016
411
Shit mine isn't even built yet. Should be getting my block back from machine shop next week. Already have everything to put together. I estimate it will be running before end of month.
Oh, so why did you think something was off with this if you have nothing to directly compare to? lol.
 

The Banshee

Corporal
Nov 18, 2017
170
Lehigh Valley PA
Oh, so why did you think something was off with this if you have nothing to directly compare to? lol.
I think he was referring to 726 awhp being off as a low number considering the engine build and psi. Most people think in terms of Dynojet numbers and don’t realize the Mustang dyno has more than earned its reputation as the heartbreaker.

This is an XI record if I am not mistaken. It must be fast as hell out of the gate on a 40 roll!!

Bring on the front LSD’s!!
 
Last edited:

tisdrew

Corporal
Jun 27, 2017
167
Is something up with that dyno? first that weird dip ~3800 and only seems to have revved out to 6100? Hard to read the rpms/left axis but looks to have made more than 725 whp at 5750(?) more like 750?
 

veer90

Lieutenant
Nov 16, 2016
1,000
West Nyack, NY
Is something up with that dyno? first that weird dip ~3800 and only seems to have revved out to 6100? Hard to read the rpms/left axis but looks to have made more than 725 whp at 5750(?) more like 750?
The spool setting on JB4 is way off. boost is overshooting by a lot and correcting back down to under target. Then going back up to target
 

phv628

Lurker
Nov 15, 2016
10
USA
Hard to tell exactly whats going on without a log, but that could be the case because it's on a dyno instead of the road.
That was my fault guys. The graph had those dips because I was rolling into boost rather than matting the pedal to the floor. Anyways, I've attached another pull with the pedal to the metal and the graph looks much better.
 

Attachments

phv628

Lurker
Nov 15, 2016
10
USA
Probably would have made more awhp but only had one heat treated o2 in bank 1 for testing and kept one eom Bosch o2 in bank 2. That bank 2 with the Bosch sensor kept giving me troubles so we had to let off sooner than what we would have liked. I have since ordered a second heat treated o2 for bank 2. The heat treated o2 in bank 1 handled 35 psi without a hitch!
 

BOosted 335i

Sergeant
Jun 1, 2017
317
New Jersey
Probably would have made more awhp but only had one heat treated o2 in bank 1 for testing and kept one eom Bosch o2 in bank 2. That bank 2 with the Bosch sensor kept giving me troubles so we had to let off sooner than what we would have liked. I have since ordered a second heat treated o2 for bank 2. The heat treated o2 in bank 1 handled 35 psi without a hitch!
Interested in this "heat treated O2",any info on this?
 

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