Gutted mate, sad to see engine ate itself. Been following build since I met you at a R32 meet last year. Anyway im sure the car will be back bigger and better. Your bank account aint gonna be happy tho😂😂
Gutted for you. Seems an unusual failure, hope you get to the bottom of it. I know there are oversize turbo pistons that take it to 3.3. If your going big power, R30? Ring gap has not done that, the turbo will require significantly larger gaps than stock I'm looking forward to the DQ500 content
Thanks mate. Ive spoken to a few people and if any cylinders are going to run lean its the back 3 a lad i know he made an adapter off each cylinder so he could put a wideband sensor on 1 cylinder at a time to fine tune each cylinder and he found 1 3 5 needed more fuel adding. I did think R30 but i would bave to start again and not really re use anything and i can't see a 2.8 crank on ebay so will be a pain finding one
Damn, sorry to here this mate, that sucks. All part of gunning for power i guess! The real question is = Why did the back three cylinders get hot? No signs of detonation by the sounds of it. Maybe they were running lean? (Did you log or watch the AF Ratio) if so why only the back Three. Dose the meth have two separate feeds to the back and front cylinders? Also Did you log or watch the EGT or watch them? Of course you would expect the the rear of the engine to run a little hotter but not to the extent that you can see on the valve carbon burn off disparity. There has top be a reason for this!
Also that damage to the top sides of the pistons looks almost like a friction burn. the very top of the piston has expanded to much and started to get heat spots and deposited its self to the cylinder wall.
Thanks. Running lean by the looks of and i think i have alot of back pressure the hot side of my turbo isnt very big. After speaking to a few people it seems normal that the back 3 can run lean and they need extra fuel but tuning that is hard my afr is fine but that is in the downpipe when all cylinders are mixed. A lad i know running 1000bhp on one he has egt sensors on every cylinder and ge says they dont help due to the head design he mad an adapter so he could run wideband sensor on one cylinder at a time to fine tune it and 1 3 5 all needed extra fuel. Stupidly i wasn't logging which i should have been but i dunno if it would have shown much my egt sensor is in the downpipe just like wideband so all together it could have been fine
1-3-5 are leanest usualy because intake runner is longer making more torque than the shorter runners. Typically need to run the 1-3-5 cylinders richer to ballance it out. The piston picking up on the cylinder woudl also indicate the piston got hot from a lean condition too and Pre ignition also comes from that poping head gaskets. who mapped it?
@BEYTEK they were pro race rods pretty sure they are just re branded maxspeedingrods but not 100%. I'm now using bespokepartz x beam rods. Ye I have changed tuner fuel table was all over the place
@@dkautos sweet buddy good to hear. Yeah i can tell by the look of the head and failure. Great job on the build. good to see lads doing bits themselves, Im currently building my VR6 too.
Borrowash service garage - they’re well known in the East Midlands for high quality of work. They bore VR blocks and the turn around is rapid.
Gutted mate, sad to see engine ate itself. Been following build since I met you at a R32 meet last year. Anyway im sure the car will be back bigger and better. Your bank account aint gonna be happy tho😂😂
Unlucky fella, but that's "because race car" build back bigger and better always! Good luck and will be following the progress!
Thank you 🙏
Gutted for you.
Seems an unusual failure, hope you get to the bottom of it.
I know there are oversize turbo pistons that take it to 3.3. If your going big power, R30?
Ring gap has not done that, the turbo will require significantly larger gaps than stock
I'm looking forward to the DQ500 content
Thanks mate. Ive spoken to a few people and if any cylinders are going to run lean its the back 3 a lad i know he made an adapter off each cylinder so he could put a wideband sensor on 1 cylinder at a time to fine tune each cylinder and he found 1 3 5 needed more fuel adding. I did think R30 but i would bave to start again and not really re use anything and i can't see a 2.8 crank on ebay so will be a pain finding one
Damn, sorry to here this mate, that sucks. All part of gunning for power i guess! The real question is = Why did the back three cylinders get hot? No signs of detonation by the sounds of it. Maybe they were running lean? (Did you log or watch the AF Ratio) if so why only the back Three. Dose the meth have two separate feeds to the back and front cylinders? Also Did you log or watch the EGT or watch them? Of course you would expect the the rear of the engine to run a little hotter but not to the extent that you can see on the valve carbon burn off disparity. There has top be a reason for this!
Also that damage to the top sides of the pistons looks almost like a friction burn. the very top of the piston has expanded to much and started to get heat spots and deposited its self to the cylinder wall.
Pulley issue = Could be harmonic issue due to more power and revs than OEM > lot of people use a fluid harmonic damper. Pro Race have them i think.
Thanks. Running lean by the looks of and i think i have alot of back pressure the hot side of my turbo isnt very big. After speaking to a few people it seems normal that the back 3 can run lean and they need extra fuel but tuning that is hard my afr is fine but that is in the downpipe when all cylinders are mixed. A lad i know running 1000bhp on one he has egt sensors on every cylinder and ge says they dont help due to the head design he mad an adapter so he could run wideband sensor on one cylinder at a time to fine tune it and 1 3 5 all needed extra fuel. Stupidly i wasn't logging which i should have been but i dunno if it would have shown much my egt sensor is in the downpipe just like wideband so all together it could have been fine
Go 3.6 out of Passat r36 ?
yo dude are they ZRP Rods? :)
1-3-5 are leanest usualy because intake runner is longer making more torque than the shorter runners. Typically need to run the 1-3-5 cylinders richer to ballance it out. The piston picking up on the cylinder woudl also indicate the piston got hot from a lean condition too and Pre ignition also comes from that poping head gaskets. who mapped it?
can actually see the Pre ig on cylinder 5 on the head too :)
@BEYTEK they were pro race rods pretty sure they are just re branded maxspeedingrods but not 100%. I'm now using bespokepartz x beam rods. Ye I have changed tuner fuel table was all over the place
@@dkautos sweet buddy good to hear. Yeah i can tell by the look of the head and failure. Great job on the build. good to see lads doing bits themselves, Im currently building my VR6 too.