Fuse brought this up in here and I thought that perhaps I could do a summary about it. It'll be a bit long, I admit.
Some short basic info first, better specs lower:
Originally B200E, AW70 and 1030 rear. Almost top notch equipment which means electric front windows
Came to Finland from UK about 10 years ago along with the owner. I bought it 2010 only because of the good body. Aand since then it has been only downhill, for my wallet at least.
After buying:
Now:
First changes in 2010 included interchanging front brakes, suspension parts and axles with previous daily driver, 242 -81 2,46l 16V with Eaton M90. Rear got Truetrac inside. Some pics here.
2011 included converting from RHD to to LHD with parts laying around, some rust removal from frontend and assembling and fitting in B6254 with B6304 crank. Therefore "B6284T".
2012 came with Kaplhenke topmounts with an extra spacers to set the height correct with old shortened springs. 2013 got suspension mods, gearbox changed from M90 with 2-plate clutch to BMW GS6-53DZ with -765 SRE and stiff sintered plate.
Some 2014 and 2015 pics.
To the specs part.
First pics of engine build, fitting, etc. here.
Evo 1, year 2012. Engine bay pic.
- Stock B6254 block, B6304 crank and 204hp cams, stock T6 pistons, H-rods.
- Stock RWD intake manifold, self made exhaust manifold, B6304 head with basic valve job and mild self made porting, 50mm HKS-style wastegate, 70mm dump from previously mentioned 242, basic 400x300x76 intercooler.
- HX40 Super #17 exhaust, 3,5" dp, front silencer and over the axle 3", rest 2,5".
- MS1 V2.2, boost 1,5-1,6bar, fuel 98 octane, 683cc Siemens injectors, 044-copy pumps, RWD coils.
523hp @ 5360rpm
704Nm @ 5080rpm
In print. Boost was ~600rpm late compared to normal driving. Dyno vid.
Stangind mile with 1,3bar boost 156,8mph/251km/h in 2012. Incar vid.
With this version I broke one M90. Both gearboxes got some nice lovin' in the track
Also broke one piston with a settings mishap. And in the end a rod bearing and crank when an oil seal gave up in full pull and I didn't notice it until oil pressure light lit. After this I took engine apart and car stood in a shed for a year.
Evo 2, year 2014. Only changes to previous mentioned.
- Pistons Wiseco 81mm with 9,5 comp from Flatlander-Ipp. Lasted under 10000 miles, then cracked.
- Compression 9,5, KKK 31, boost 2,1-2,2bar/~31psi
- 1260cc SMP disc injectors, MS2 V3, fuel E85
- 3" exhaust till the end
- T6 block and crank, stiffer valve springs.
727hp and 870Nm
Dyno vid.
The goal was to barely reach 700hp but it came so easily. Didn't even need better cams or such. Cams have a small timing change from stock to take torque higher and they have been on the same setting since this dyno. Nice engine to drive over winter.
Evo3, a couple of months ago. Engine bay pic.
- Still Wisecos, some time after this they broke.
- 3,5" exhaust from start to finish going over rear axle
- Aftermarket fuel rail, boost 2-2,1bar.
789hp @ 6601rpm and 935Nm @ 5485rpm
Head gasket blew some time after dyno. Propably done over time with bit too much ignition advance. After changing gasket, I fought a while with ignition. Changed new plugs, basic BCPR7ES with 0,65mm gap and updated to T6 coils. Wasted spark. First pull with everything working great, got some speed on 4th gear and then it blew the gasket again. This time reason was that thread in block gave up on one bolt. I had to put a threaded steel sleeve in there after failing to drill broken head bolt correctly out. Nothing new to snap a head bolt while first time opening a 81mm bore B6xxx engine. Has happened now five times with the same bolt on exhaust side between cylinders 4 and 5. And all have not been opened since leaving factory.
Evo 4, last thursday. Though this is a lamer version but the latest as well.
- 4" dp, Griffin 24x19" radiator, Garrett 24x12x3,5" cooler, all changed in hopes of getting a new dyno results with previous engine.
- Stock T6 pistons, boost 1,8bar
Almost no power
699,985hp and 843Nm.
Some other specs for now:
Fuel system: 2x K-jet copy pumps, 12mm line from tank to pumps and 10mm line from pumps to engine. No catch tank, no prepump.
Body: No mods, yet. Added upper and lower supports to engine bay of course.
Powertrain: Gearbox BMW GS6-53DZ 6-speed. Billett flywheel, clutch -765 M5 SRE with stiff 4-plate disc. Stock driveshaft, stock 3.31 1031 rear with Truetrac.
Suspension: Gaz adjustable shocks all round, polyurethane bushings, strengthened front control arms and rear upper too. Coil springs front, basic shortened lowering spring rear. Front sway bar 24mm, rear 19mm. All control arms and engine beam(or whatsit) hot-dip galvanized.
Brakes: Front 00-> T5/etc. 305mm discs and calipers with custom spacer. EBC TurboGroove disc. Rear stock disc for now. Yellowstuff all round.
Wheels: 215/45/17 and Polaris(got two sets, like new and a bit shabby)
And to the latest event, standing mile yesterday.
Made an extra front lip Friday/Saturday night for trying to get less air under the car. And propably to lessen the airpocket effect in engine bay which these have quite badly. Lowered the body 1cm. Front lip helped a lot on the road with heavy sidewind. Decided to tape front decently to prevent stuff taking off. Luckily got a pull before the rain. Calm start, nice clean pull and before the finish started to wonder why does it feel like I've hit revlimiter(7400rpm). After checking the results it felt like it because it was hitting it.
Expectation for barn door aerodynamics were not too high, around 172mph/270-280km/h. Surprise was quite huge with 188,75mph/302km/h. In the end car was clearly lifting. Have been thinking about 3.15 rear and putting 225 tire to the back(got two semislicks waiting). It could be just enough for 200mph/320km/h but it requires also more aero mods.
The whole thing: https://www.youtube.com/watch?v=02hv4d2bkiM
Not good looking but working:
When this has not been standing due to lack of motivation or some miscannelous stuff, it has served as a daily driver. Occasionally some hauling but mostly driving to work and other places. After last fall I have driven around 17000km/10600miles. Before current engine it has seen some trackdays
Everything has been done by me, except machining and aluminium welding. I have gotten good advices from a few friends who have more experience in powerful engines, this began as my first turbo build. I had done two supercharged 16v redblocks with decent success before. I'll write some smaller things afterwards. I'm not even trying to write down everything what has happened with this, it would take far too long and everyone would be bored.
Propably got something wrong, will correct later.
If any questions, please do.
Some short basic info first, better specs lower:
Originally B200E, AW70 and 1030 rear. Almost top notch equipment which means electric front windows
Came to Finland from UK about 10 years ago along with the owner. I bought it 2010 only because of the good body. Aand since then it has been only downhill, for my wallet at least.After buying:
Now:
First changes in 2010 included interchanging front brakes, suspension parts and axles with previous daily driver, 242 -81 2,46l 16V with Eaton M90. Rear got Truetrac inside. Some pics here.
2011 included converting from RHD to to LHD with parts laying around, some rust removal from frontend and assembling and fitting in B6254 with B6304 crank. Therefore "B6284T".
2012 came with Kaplhenke topmounts with an extra spacers to set the height correct with old shortened springs. 2013 got suspension mods, gearbox changed from M90 with 2-plate clutch to BMW GS6-53DZ with -765 SRE and stiff sintered plate.
Some 2014 and 2015 pics.
To the specs part.
First pics of engine build, fitting, etc. here.
Evo 1, year 2012. Engine bay pic.
- Stock B6254 block, B6304 crank and 204hp cams, stock T6 pistons, H-rods.
- Stock RWD intake manifold, self made exhaust manifold, B6304 head with basic valve job and mild self made porting, 50mm HKS-style wastegate, 70mm dump from previously mentioned 242, basic 400x300x76 intercooler.
- HX40 Super #17 exhaust, 3,5" dp, front silencer and over the axle 3", rest 2,5".
- MS1 V2.2, boost 1,5-1,6bar, fuel 98 octane, 683cc Siemens injectors, 044-copy pumps, RWD coils.
523hp @ 5360rpm
704Nm @ 5080rpm
In print. Boost was ~600rpm late compared to normal driving. Dyno vid.
Stangind mile with 1,3bar boost 156,8mph/251km/h in 2012. Incar vid.
With this version I broke one M90. Both gearboxes got some nice lovin' in the track
Also broke one piston with a settings mishap. And in the end a rod bearing and crank when an oil seal gave up in full pull and I didn't notice it until oil pressure light lit. After this I took engine apart and car stood in a shed for a year.Evo 2, year 2014. Only changes to previous mentioned.
- Pistons Wiseco 81mm with 9,5 comp from Flatlander-Ipp. Lasted under 10000 miles, then cracked.
- Compression 9,5, KKK 31, boost 2,1-2,2bar/~31psi
- 1260cc SMP disc injectors, MS2 V3, fuel E85
- 3" exhaust till the end
- T6 block and crank, stiffer valve springs.
727hp and 870Nm
Dyno vid.
The goal was to barely reach 700hp but it came so easily. Didn't even need better cams or such. Cams have a small timing change from stock to take torque higher and they have been on the same setting since this dyno. Nice engine to drive over winter.
Evo3, a couple of months ago. Engine bay pic.
- Still Wisecos, some time after this they broke.
- 3,5" exhaust from start to finish going over rear axle
- Aftermarket fuel rail, boost 2-2,1bar.
789hp @ 6601rpm and 935Nm @ 5485rpm
Head gasket blew some time after dyno. Propably done over time with bit too much ignition advance. After changing gasket, I fought a while with ignition. Changed new plugs, basic BCPR7ES with 0,65mm gap and updated to T6 coils. Wasted spark. First pull with everything working great, got some speed on 4th gear and then it blew the gasket again. This time reason was that thread in block gave up on one bolt. I had to put a threaded steel sleeve in there after failing to drill broken head bolt correctly out. Nothing new to snap a head bolt while first time opening a 81mm bore B6xxx engine. Has happened now five times with the same bolt on exhaust side between cylinders 4 and 5. And all have not been opened since leaving factory.
Evo 4, last thursday. Though this is a lamer version but the latest as well.
- 4" dp, Griffin 24x19" radiator, Garrett 24x12x3,5" cooler, all changed in hopes of getting a new dyno results with previous engine.
- Stock T6 pistons, boost 1,8bar
Almost no power
699,985hp and 843Nm.
Some other specs for now:
Fuel system: 2x K-jet copy pumps, 12mm line from tank to pumps and 10mm line from pumps to engine. No catch tank, no prepump.
Body: No mods, yet. Added upper and lower supports to engine bay of course.
Powertrain: Gearbox BMW GS6-53DZ 6-speed. Billett flywheel, clutch -765 M5 SRE with stiff 4-plate disc. Stock driveshaft, stock 3.31 1031 rear with Truetrac.
Suspension: Gaz adjustable shocks all round, polyurethane bushings, strengthened front control arms and rear upper too. Coil springs front, basic shortened lowering spring rear. Front sway bar 24mm, rear 19mm. All control arms and engine beam(or whatsit) hot-dip galvanized.
Brakes: Front 00-> T5/etc. 305mm discs and calipers with custom spacer. EBC TurboGroove disc. Rear stock disc for now. Yellowstuff all round.
Wheels: 215/45/17 and Polaris(got two sets, like new and a bit shabby)
And to the latest event, standing mile yesterday.
Made an extra front lip Friday/Saturday night for trying to get less air under the car. And propably to lessen the airpocket effect in engine bay which these have quite badly. Lowered the body 1cm. Front lip helped a lot on the road with heavy sidewind. Decided to tape front decently to prevent stuff taking off. Luckily got a pull before the rain. Calm start, nice clean pull and before the finish started to wonder why does it feel like I've hit revlimiter(7400rpm). After checking the results it felt like it because it was hitting it.
Expectation for barn door aerodynamics were not too high, around 172mph/270-280km/h. Surprise was quite huge with 188,75mph/302km/h. In the end car was clearly lifting. Have been thinking about 3.15 rear and putting 225 tire to the back(got two semislicks waiting). It could be just enough for 200mph/320km/h but it requires also more aero mods.
The whole thing: https://www.youtube.com/watch?v=02hv4d2bkiM
Not good looking but working:
When this has not been standing due to lack of motivation or some miscannelous stuff, it has served as a daily driver. Occasionally some hauling but mostly driving to work and other places. After last fall I have driven around 17000km/10600miles. Before current engine it has seen some trackdays
Everything has been done by me, except machining and aluminium welding. I have gotten good advices from a few friends who have more experience in powerful engines, this began as my first turbo build. I had done two supercharged 16v redblocks with decent success before. I'll write some smaller things afterwards. I'm not even trying to write down everything what has happened with this, it would take far too long and everyone would be bored.
Propably got something wrong, will correct later.
If any questions, please do.
Last edited:
