Tunning a pre lci 330d
Discussion
Hi all.i'm sure has been discussed many many times.i own a 2007 e92 330d.it has a tu e at the moment.dpf out and straight piped front to back.egr out and deleted and a custom remap.it pushes about 320bhp and close to 600Nm torque.
My question is if i was to go for a stage 4 tunning which means and upgraded turbo, ulgraded intercooler, injectors from a 535d and an upgraded fuel pump, will the gearbox take the torque as i will be looking at around 500bhp and about 750-780Nm torque and if not which gearbox will be safe to get?
I have been looking after the car with a service wvry 5k miles and other maintenance on top.
My question is if i was to go for a stage 4 tunning which means and upgraded turbo, ulgraded intercooler, injectors from a 535d and an upgraded fuel pump, will the gearbox take the torque as i will be looking at around 500bhp and about 750-780Nm torque and if not which gearbox will be safe to get?
I have been looking after the car with a service wvry 5k miles and other maintenance on top.
320bhp/600nm is a bit of an odd figure for an m57, you should be at around 280hp / 700nm with a remap..
From what I gather the auto boxes are rated at 700nm although be warned that its not just the gearbox that you should be concerned about.
Id factor in replacements of the driveshaft guibos, the centre support bearing and if the differential pinion bearings are original and the fluid hasn't been changed you'd want to factor in the cost of having the pinion bearings replaced. They won't last long.
From what I gather the auto boxes are rated at 700nm although be warned that its not just the gearbox that you should be concerned about.
Id factor in replacements of the driveshaft guibos, the centre support bearing and if the differential pinion bearings are original and the fluid hasn't been changed you'd want to factor in the cost of having the pinion bearings replaced. They won't last long.
easy_ said:
320bhp/600nm is a bit of an odd figure for an m57, you should be at around 280hp / 700nm with a remap..
From what I gather the auto boxes are rated at 700nm although be warned that its not just the gearbox that you should be concerned about.
Id factor in replacements of the driveshaft guibos, the centre support bearing and if the differential pinion bearings are original and the fluid hasn't been changed you'd want to factor in the cost of having the pinion bearings replaced. They won't last long.
Thabks for the info.those numbers i quoted are rough as i would think a remap gives about 50bhp and then removing dpf and egr and programing them out would give another 30 odd so maybe close to 315bhp and as for the torque i assumed about 600Nm as the zf6hp26 is rated at 600max from what i have been researching since but i have read people pushing it to close 700Nm which what a zf6hp28 is rated at.i should put it on the dyno really to get exact figues vut do you think the 6hp26 of my m57 can be pushed to 680Nm or so without the fear of breaking?From what I gather the auto boxes are rated at 700nm although be warned that its not just the gearbox that you should be concerned about.
Id factor in replacements of the driveshaft guibos, the centre support bearing and if the differential pinion bearings are original and the fluid hasn't been changed you'd want to factor in the cost of having the pinion bearings replaced. They won't last long.
PeriDieselPower said:
Thabks for the info.those numbers i quoted are rough as i would think a remap gives about 50bhp and then removing dpf and egr and programing them out would give another 30 odd so maybe close to 315bhp and as for the torque i assumed about 600Nm as the zf6hp26 is rated at 600max from what i have been researching since but i have read people pushing it to close 700Nm which what a zf6hp28 is rated at.i should put it on the dyno really to get exact figues vut do you think the 6hp26 of my m57 can be pushed to 680Nm or so without the fear of breaking?
In terms of longevity i dont know, its a gamble. You should base your decision off whether on not you are prepared to buy a new gearbox and pay for the rest of the drive line needing overhauling at some point.
easy_ said:
PeriDieselPower said:
Thabks for the info.those numbers i quoted are rough as i would think a remap gives about 50bhp and then removing dpf and egr and programing them out would give another 30 odd so maybe close to 315bhp and as for the torque i assumed about 600Nm as the zf6hp26 is rated at 600max from what i have been researching since but i have read people pushing it to close 700Nm which what a zf6hp28 is rated at.i should put it on the dyno really to get exact figues vut do you think the 6hp26 of my m57 can be pushed to 680Nm or so without the fear of breaking?
In terms of longevity i dont know, its a gamble. You should base your decision off whether on not you are prepared to buy a new gearbox and pay for the rest of the drive line needing overhauling at some point.
PeriDieselPower said:
I understand what do you mean by the driveline needing overhauling?
Simply put, the current gearbox, diff, driveshaft, prop shaft and all associated bits will be towards the end of there working lives and by increasing the power you run the risk of breaking it. Ref the insurance, I guess the other question was have you checked to see what they will cover you for. No dpf will mean no insurance for road use.
stevemcs said:
PeriDieselPower said:
I understand what do you mean by the driveline needing overhauling?
Simply put, the current gearbox, diff, driveshaft, prop shaft and all associated bits will be towards the end of there working lives and by increasing the power you run the risk of breaking it. Ref the insurance, I guess the other question was have you checked to see what they will cover you for. No dpf will mean no insurance for road use.
Gassing Station | BMW General | Top of Page | What's New | My Stuff