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My new 6er - 628CSi Turbo

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DC
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Post by DC » Thu Nov 01, 2012 6:08 am

yeah - seats are better than previous because they hold body much better and now during winter they don?t feel as cold as leather in the morning :)

it?s bmw achatgreen which is very dark, so it looks black usually :lol:
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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DC
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Post by DC » Sun Nov 18, 2012 8:13 pm

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
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

///Moe
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Post by ///Moe » Sun Nov 18, 2012 8:36 pm

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.. :-$
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]

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DC
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Post by DC » Mon Nov 19, 2012 7:09 pm

here are some photos of today work progress

morning
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little bit later
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there were detonations...
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628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

///Moe
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Post by ///Moe » Mon Nov 19, 2012 8:22 pm

Something must be wrong with your setup..
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]

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DC
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Post by DC » Wed Nov 21, 2012 8:03 pm

I know what - centrifugal advance in distributor was the problem #-o
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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DC
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Post by DC » Wed Nov 28, 2012 6:37 am

so she is alive again

I reduced advance and it looks fine now

Turbo give wings to that car - it was slow in low-revs, now it accelerates happily even under 3k RPM
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

GazM3
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Post by GazM3 » Wed Nov 28, 2012 8:24 am

Nice one.
A little bit of Turbo action goes a long way.
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DC
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Post by DC » Sat Apr 27, 2013 5:35 pm

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

Image

could you recognize them? 8)

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Image

Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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DC
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Post by DC » Thu May 02, 2013 10:40 am

I had to fabricate shield for intake manifold (AFM and filter) - it was quite hard to make it fit perfectly and make it easily removable if needed but here it is (not nice, but useful)

Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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7thtolast
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Post by 7thtolast » Sat May 04, 2013 1:24 am

rmorin49 wrote:Very nice. Looks a lot like mine. What engine does the 628 have?
The 6 stands for the 6-series and the other 2 numbers indicate the size of the engine displacement!
I never understood the 745i turbo as I don't think it is a 4.5L.....
1988 BMW NAS M6...
1993 Range Rover County LWB...
2009 Volkswagen Touareg V6 (wished it was a TDI)

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7thtolast
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Post by 7thtolast » Sat May 04, 2013 2:08 am

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
1988 BMW NAS M6...
1993 Range Rover County LWB...
2009 Volkswagen Touareg V6 (wished it was a TDI)

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erneland
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Post by erneland » Sat May 04, 2013 5:28 am

7thtolast wrote:
rmorin49 wrote:Very nice. Looks a lot like mine. What engine does the 628 have?
The 6 stands for the 6-series and the other 2 numbers indicate the size of the engine displacement!
I never understood the 745i turbo as I don't think it is a 4.5L.....
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. :)
Alpina B7 Turbo/1 #022. 1984.

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DC
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Post by DC » Sat May 04, 2013 5:42 am

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
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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winfred
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Post by winfred » Sat May 04, 2013 1:15 pm

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:
7thtolast wrote:
rmorin49 wrote:Very nice. Looks a lot like mine. What engine does the 628 have?
The 6 stands for the 6-series and the other 2 numbers indicate the size of the engine displacement!
I never understood the 745i turbo as I don't think it is a 4.5L.....
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. :)
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

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Post by GazM3 » Sat May 04, 2013 9:36 pm

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.
BMW’s
74 2002
84 E24 M635csi
86 E23 735i
94 E34 540i/6 SC
97 E36 M3 euro SC

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
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DC
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Post by DC » Sat Sep 28, 2013 5:15 am

shame on me for not updating this topic, but this will make it better :)

here are news and photos

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after this meeting I was quite sure, that engine works fine for dyno

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and result is
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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 :D

and bonus shot from our BIG BMW meeting (907 bimmers attended)
all my bimmers together
Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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tschultz
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Post by tschultz » Sun Sep 29, 2013 8:10 am

Thanks for sharing the high quality photos!

GazM3
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Post by GazM3 » Sun Sep 29, 2013 9:36 am

Nice one
Yes power seems to stall over 4500 as said due to poor mixtures
How is it setup ? Rising rate fpr?
Original dme ? Or standalone ?
BMW’s
74 2002
84 E24 M635csi
86 E23 735i
94 E34 540i/6 SC
97 E36 M3 euro SC

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
11 Audi S5

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DC
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Post by DC » Sun Sep 29, 2013 11:24 am

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 ...

Image

also her sister was there :)
Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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DC
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Post by DC » Sat Oct 05, 2013 4:28 pm

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?

Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

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DC
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Post by DC » Sun Oct 06, 2013 12:17 pm

Britneydecker :lol:

Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

Noct
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Post by Noct » Sat Oct 26, 2013 7:32 pm

850i wheels look quite nice! Congrats on getting her running again. :wink:
'87 L6 alpinweiss/natur-nutria
'88 635csi sable brown/gray

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DC
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Post by DC » Sat Nov 16, 2013 12:11 pm

because I am such a wheelmaniac I bought set of 17" Hartge 3-piece forged wheels for this car

with dark November sky...
Image
628CSi Turbo - Britney
Image
635CSi BiTurbo Drifter
e23 732iA, e21 320i Turbo, e30 318iS, 1602, e12 525, e31 850Ci 6 gear, E36 318iS, e65 745i, 1980 R100, 2015 R1200R LC
BMW-Faszination aus Technik und Design

GazM3
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Post by GazM3 » Sat Nov 16, 2013 10:43 pm

They look nice on the car for sure. And that sky looks very dark.
BMW’s
74 2002
84 E24 M635csi
86 E23 735i
94 E34 540i/6 SC
97 E36 M3 euro SC

OTHERS
02 Landrover D2 td5
08 Holden Ute 6.0
11 Audi S5

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