Pd105 bxe upgrades?

[TouranMan]

Hi all I have a vw touran bxe pd105 if had it mapped what other enhancements would gain me more power?
What injectors can I fit to enhance ?
Would a straight pipe improve performance ?
Any help appreciated

 

[adamss24]

You need to upgrade the rods and get better rod bearings before your engine’s rods make a run through the side of the block ! BXE is really bad at that, mapping it just shortens it’s life considerably!
I was working on a few 1.9 pd tdi engine’s lately, an Leon in particular had bent rods from just a rubbish map and a cheap hybrid turbo. With a slightly better turbo (not built by me!), rebuilt engine and a top end overhaul, the car is making really good power across the range ! How long will it hold ? Time will tell…

 

[reince]

One local guy got a bad experience as well with BXE.

 

[adamss24]

Usually the rod bolts shear on the bxe due to cheap, low quality oil but it’s often the camshaft that go 1st ! As a minimum upgrade the rod bolts to ARL spec ones, they are 12.9 tensile grade vs 10.9 on the lower power engines. Also I recommend sputter bearings for the rod bolts, they are going trough immense stress on modified engines and you want piece of mind really ! I would also stress going to a larger turbo as they are more linear in torque delivery, as I mentioned above I have fixed a few of them 105 Bhp engine with bent rods due to small, punchy turbos that boost too much, too quick ! Also fit an EGT gauge to keep an eye on exhaust temps, small turbos tend to boost creep on re-maps with poor vnt control !

 

[reince]

Usually the rod bolts shear on the bxe due to cheap, low quality oil but it’s often the camshaft that go 1st ! As a minimum upgrade the rod bolts to ARL spec ones, they are 12.9 tensile grade vs 10.9 on the lower power engines. Also I recommend sputter bearings for the rod bolts, they are going trough immense stress on modified engines and you want piece of mind really ! I would also stress going to a larger turbo as they are more linear in torque delivery, as I mentioned above I have fixed a few of them 105 Bhp engine with bent rods due to small, punchy turbos that boost too much, too quick ! Also fit an EGT gauge to keep an eye on exhaust temps, small turbos tend to boost creep on re-maps with poor vnt control !

Alright, I will tip him when he visits the shop early next year. He took his Wrangler the other day for the installation of the suspension and skid plates from 4Wheelonline. I think he is ok with a bigger turbo.