My new 6er - 628CSi Turbo
Moderators: GRNSHRK, ron, bfons
news everyone - car worked fine till 0,5 bar(7,5PSI) of boost but I tried 0,6 and headgasket didn?t make it - so I have to renew headgasket and lower the compression with another pistons propably
more work but it is worth it
and surprise - fuel is still managed by L-jetronic after some tweaks and it is fine - AFR under full load was near 12:1 which is fine
more work but it is worth it
and surprise - fuel is still managed by L-jetronic after some tweaks and it is fine - AFR under full load was near 12:1 which is fine
M6 - Marwin
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
Stock headgasket should be able to deal with 1 bar or more @ stock compression.
Old headgaskets will fail easier than new ones, you should try with just a new one at first.
Also M102/M106 headgaskets are said to be stronger than M30 ones, just a tip..
12:1 AFR on full throttle/boost is "perfect", but is it stable?
PS: I have ran a stock M30B28 on 0,65 bar without any problems, old headgasket.
That engine also ran on L-jetronic, but it's rod bearings (from 79') got worned out..
Old headgaskets will fail easier than new ones, you should try with just a new one at first.
Also M102/M106 headgaskets are said to be stronger than M30 ones, just a tip..
12:1 AFR on full throttle/boost is "perfect", but is it stable?
PS: I have ran a stock M30B28 on 0,65 bar without any problems, old headgasket.
That engine also ran on L-jetronic, but it's rod bearings (from 79') got worned out..
E24 635CSiA 85' (garage queen)
E24 628CSiA 83' (turbo/manual?)
E23 745i 82' (turbo project)
E23 728i 86' (745i project)
E23 728i 79' (part's car) [x]
E28 525i 81' (part's car) [x]
E24 628CSiA 83' (turbo/manual?)
E23 745i 82' (turbo project)
E23 728i 86' (745i project)
E23 728i 79' (part's car) [x]
E28 525i 81' (part's car) [x]
I had problems with car after winter - sometimes it was OK, and sometimes it has fuel delivery problems
I changed fuel pump, fuel filter, fuel pressure regulator and nothing improved
today I changed AFM a voila - it is working perfect
after that I went to our meeting of old cars here
could you recognize them?
I changed fuel pump, fuel filter, fuel pressure regulator and nothing improved
today I changed AFM a voila - it is working perfect
after that I went to our meeting of old cars here
could you recognize them?
M6 - Marwin
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
The 6 stands for the 6-series and the other 2 numbers indicate the size of the engine displacement!rmorin49 wrote:Very nice. Looks a lot like mine. What engine does the 628 have?
I never understood the 745i turbo as I don't think it is a 4.5L.....
1988 Black BMW M6...7th to the last North American M6 built.
One of six with the black Nappa leather interior.
One of six with the black Nappa leather interior.
I didn't realize the other pages before my previous post.....first and foremost that little red BMW is what started it all ( I am reading a book on the origins of BMW and the beginning of the six coupe) and that is the Austin based Dixi car... 1st BMW Pre-war! The other is the great grandfather of the 6 series......the 327/28, post-war ( I think)! Nice photos!
Also...on a previous photo you had the mass/airflow on the intake during fabrication, then it was gone in another pic when everything was together...what happened to it??
Book I'm reading....BMW 6 series, Enthusiast's Companion! Author Jeremy Walton, BentleyPublishers.com
Also...on a previous photo you had the mass/airflow on the intake during fabrication, then it was gone in another pic when everything was together...what happened to it??
Book I'm reading....BMW 6 series, Enthusiast's Companion! Author Jeremy Walton, BentleyPublishers.com
1988 Black BMW M6...7th to the last North American M6 built.
One of six with the black Nappa leather interior.
One of six with the black Nappa leather interior.
In order to compensate for the higher torque, BMW "increased" the displacement when using turbo (just on the badge that is). M106 in 745 turbo is 3.4l. I think this is a remnant from back in the days when BMW was using low volume engines (like 1.4l) and yet could participate in tournaments where others had bigger engines. I could be wrong here, but I remember that there was something like that. :)7thtolast wrote:The 6 stands for the 6-series and the other 2 numbers indicate the size of the engine displacement!rmorin49 wrote:Very nice. Looks a lot like mine. What engine does the 628 have?
I never understood the 745i turbo as I don't think it is a 4.5L.....
I moved AFM before turbo behind the new shield in front of wheel
745 had two similar but not same engines
M102 - 3,2l running on Jetronic
and after facelift - M106 - 3,4l running on Motronic with oil cooled pistons - it has same power as M102 but with using lower boost level
x45 should mean power output similar to naturally aspirated 4,5 litre engine which they had only as v8 or v12 test samples
745 had two similar but not same engines
M102 - 3,2l running on Jetronic
and after facelift - M106 - 3,4l running on Motronic with oil cooled pistons - it has same power as M102 but with using lower boost level
x45 should mean power output similar to naturally aspirated 4,5 litre engine which they had only as v8 or v12 test samples
M6 - Marwin
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
they built it to compete with the 450sel benz and it had the power of a 4.5, so thats what they went with
erneland wrote:In order to compensate for the higher torque, BMW "increased" the displacement when using turbo (just on the badge that is). M106 in 745 turbo is 3.4l. I think this is a remnant from back in the days when BMW was using low volume engines (like 1.4l) and yet could participate in tournaments where others had bigger engines. I could be wrong here, but I remember that there was something like that. :)7thtolast wrote:The 6 stands for the 6-series and the other 2 numbers indicate the size of the engine displacement!rmorin49 wrote:Very nice. Looks a lot like mine. What engine does the 628 have?
I never understood the 745i turbo as I don't think it is a 4.5L.....
3/81 633 m30b35 & getrag 260/6, motronic 1.3 -sold
86 635 with nearly all goodies from rotted away 85 m635 including the m88/3, tuning in progress on motronic 3.3.1
86 635 with nearly all goodies from rotted away 85 m635 including the m88/3, tuning in progress on motronic 3.3.1
This was a snapshot into the future labelling models without corresponding to their engine displacement. Look at BMW now.
In Motorsport classification down under turbo displacement equiverlant is x 1.7. So we call it now the 648i.
The 2.8ltr were a pretty happy engine pretty well on the se par as the m30b34 low comp engine.
With turbocharging I'd imagine they would be brilliant.
Can't wait to the snow buggers off so we can see all of DC's cars driven on te roads.
In Motorsport classification down under turbo displacement equiverlant is x 1.7. So we call it now the 648i.
The 2.8ltr were a pretty happy engine pretty well on the se par as the m30b34 low comp engine.
With turbocharging I'd imagine they would be brilliant.
Can't wait to the snow buggers off so we can see all of DC's cars driven on te roads.
BMW’s
84 E24 M635csi
90 E34 M5 3.6
94 E34 540i/6 SC E85
97 E36 M3 euro SC U/C
97 Z3 2.8 widebody
OTHERS
11 Audi S5 3.0 SC
19 VW Amarok V6
84 E24 M635csi
90 E34 M5 3.6
94 E34 540i/6 SC E85
97 E36 M3 euro SC U/C
97 Z3 2.8 widebody
OTHERS
11 Audi S5 3.0 SC
19 VW Amarok V6
shame on me for not updating this topic, but this will make it better :)
here are news and photos
after this meeting I was quite sure, that engine works fine for dyno
and result is
218 HP and 280 lbs-ft of torque (377Nm)
torque is same like 745i e23 but 1000 RPM lower and total power is just 218 HP because bad fuel mixture over 4500 RPM - i have to massively improve fuel delivery and then stage 2 is coming
and bonus shot from our BIG BMW meeting (907 bimmers attended)
all my bimmers together
here are news and photos
after this meeting I was quite sure, that engine works fine for dyno
and result is
218 HP and 280 lbs-ft of torque (377Nm)
torque is same like 745i e23 but 1000 RPM lower and total power is just 218 HP because bad fuel mixture over 4500 RPM - i have to massively improve fuel delivery and then stage 2 is coming
and bonus shot from our BIG BMW meeting (907 bimmers attended)
all my bimmers together
M6 - Marwin
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
Thanks for sharing the high quality photos!
http://www.Drive4Corners.com
'79 635CSi Revival
'80 635CSi
'83 633CSi Callaway Turbo continued as 1988 535is Turbo
SOLD: '81 635CSi/A
'79 635CSi Revival
'80 635CSi
'83 633CSi Callaway Turbo continued as 1988 535is Turbo
SOLD: '81 635CSi/A
it has original l-jetronic with afm and original fuel injectors but I already have bigger injectors ready
but now I have bigger problem, because my auto tranny didn´t make it(again) - it broke down two days after dyno
I have manual tranny waiting, but I have to buy also all others parts needed for exchange
last drive with her ...
also her sister was there :)
but now I have bigger problem, because my auto tranny didn´t make it(again) - it broke down two days after dyno
I have manual tranny waiting, but I have to buy also all others parts needed for exchange
last drive with her ...
also her sister was there :)
M6 - Marwin
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
I like auto tranny in this car, so I repaired it again - problem was in tranny brain so I changed it from another one, gave it new filter and oil and voila - it is working again as new
then I tried wheels from 850i - what do you think about it?
then I tried wheels from 850i - what do you think about it?
M6 - Marwin
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design
628CSi Turbo - Britney
BMW-Faszination aus Technik und Design