BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
Go Back   6Post.com | BMW 6-Series Forum > BIMMERPOST Universal Forums > Classic BMW (Pre-2005 Models)

Post Reply
 
Thread Tools Search this Thread
      02-11-2024, 03:16 AM   #551
Mr-Toast001
New Member
Mr-Toast001's Avatar
3
Rep
14
Posts

Drives: BMW 335xi
Join Date: Oct 2021
Location: Switzerland

iTrader: (0)

Great Episode. But not sure if this waterpump is going to work
Appreciate 1
      02-12-2024, 08:55 AM   #552
cryptomit
Captain
96
Rep
713
Posts

Drives: 320d 2012
Join Date: Dec 2013
Location: AS

iTrader: (0)

Hi guys, does anyone know what camera Sreten use to make his videos?
Appreciate 0
      02-12-2024, 10:20 AM   #553
Tambohamilton
Brigadier General
3154
Rep
4,013
Posts

Drives: E91 330d
Join Date: Apr 2019
Location: Herefordshire

iTrader: (0)

Quote:
Originally Posted by Mr-Toast001 View Post
Great Episode. But not sure if this waterpump is going to work
Yeah, that was pretty rough...not an item I'd be keen to modify like that. That said, it'll probably be totally fine.
Appreciate 0
      02-13-2024, 09:14 AM   #554
tcphoto
Brigadier General
tcphoto's Avatar
United_States
4004
Rep
3,211
Posts

Drives: E92 335i 6MT Coupe
Join Date: Dec 2009
Location: Nashville, TN

iTrader: (1)

His YouTube channel is amazing, his sense of humor is dry and not the pretentious "Influencer" type. The attention to detail is to be respected and the parts cleaning is better than OEM. The ZHP Touring got my attention and the rebuilt E92 M3 looks like a blast to drive.
__________________
Appreciate 0
      02-13-2024, 01:17 PM   #555
fijigabe0
Second Lieutenant
fijigabe0's Avatar
United_States
21
Rep
224
Posts

Drives: 2013 F30 335i M Sport
Join Date: Feb 2007
Location: Texas

iTrader: (0)

Quote:
Originally Posted by Tambohamilton View Post
Yeah, that was pretty rough...not an item I'd be keen to modify like that. That said, it'll probably be totally fine.
Agreed - that move wasn't up to his usual quality standards. I'm surprised he went that route.
__________________
Gabe

'13 335i M-Sport

Past - '06 330xi, '07 X3 3.0si, '09 328i, '12 X3 XDrive 35i
Appreciate 0
      02-13-2024, 02:53 PM   #556
M-technik-3
Lieutenant Colonel
2311
Rep
1,573
Posts

Drives: E30 M3, E36 M3, 328iT, 335i
Join Date: Mar 2020
Location: western Ma

iTrader: (0)

Garage List
1995 M3  [9.00]
2007 E91  [7.25]
1988 M3  [9.50]
The shorty headers looked like a set I had on my 86 325i when I was living in EU. Can't wait to see it run.
Appreciate 0
      02-13-2024, 04:36 PM   #557
Mr-Toast001
New Member
Mr-Toast001's Avatar
3
Rep
14
Posts

Drives: BMW 335xi
Join Date: Oct 2021
Location: Switzerland

iTrader: (0)

Quote:
Originally Posted by Tambohamilton View Post
That said, it'll probably be totally fine.
To be honest, I am not even sure if this is going to work without any problems. Don’t want to go into to much detail, but the way any water pump works is to somehow create a pressure difference which makes the fluid move. In case of a centrifugal pump, this is achieved by „throwing“ the water outwards in radial direction. The following 2min video explains it quite well:



As you can see, there are indeed impellers which have an open design. But in that case, the pump casing is manufactured accordingly, so that the gap between the edge of the impeller blades and the pump casing itself is very small (almost zero).
If you have a closed impeller (like Sreten did) and grind away the endplate, there is no reason for the water to move all the way towards the outer end of the blades. It would just leak out of the side (where normally the endplate would be). The pressure difference and flow-rate would be much smaller.

In addition to that, I think water pumps come pretty well balanced from the factory. Grinding off material unevenly could introduce vibration and wear out the bearings much faster.

But yeah, that’s just what I thought when I watched the video. And what do I know, right?
Maybe also works like this. But since Sreten is increasing the power output of the engine, I think it’s important to also have a working cooling system.
Appreciate 0
      02-13-2024, 05:28 PM   #558
Tambohamilton
Brigadier General
3154
Rep
4,013
Posts

Drives: E91 330d
Join Date: Apr 2019
Location: Herefordshire

iTrader: (0)

Yeah, I agree with what you said. But I don't think they're as sensitive as you might assume. Well, I'm hoping they're not very sensitive

I think he'll replace it pretty soon. It sticks out like a sore thumb as a bodge, against the backdrop of perfection he's going for. You can't see it from the outside, but he knows it's there...
Appreciate 0
      02-13-2024, 06:27 PM   #559
Sreten
New Member
146
Rep
9
Posts

Drives: E92 M3, E39 M5
Join Date: Aug 2022
Location: Frankfurt

iTrader: (0)

Thanks, fellas!

Yeah, I absolutely hate the situation with the water pump and I'll address it in the next episode.

That said, I spoke to another builder and E31 restorer here in Germany (Wokke) who's been doing these M73/M70 hybrid builds since 2014 and he always grinds the water pump impeller and never experienced any issues. So it will work.

But still, it really bugs me and I don't want to leave it like that. I ordered a pair of new pumps and I'm gonna send them to a CNC machine shop and see if it's possible to transfer over the M73 impeller on the M70 pump.
If not, then see if the coolant pipe connection can be modified. M73 has a quick disconnect hose connection while M70 has standard clamps, but the angle is different too. Either way, hopefully I'll find a more elegant solution.
Appreciate 14
KevinC3423.50
DrFerry6748.00
Almuliman560.50
Mani5915560.00
tip_m20.50
DunnyM516.00
tcphoto4004.00
      02-14-2024, 01:21 AM   #560
rotomoto712
Private First Class
128
Rep
110
Posts

Drives: 2008 BMW M3 Convertible
Join Date: Aug 2016
Location: Deutschland

iTrader: (0)

Quote:
Originally Posted by Sreten View Post
Thanks, fellas!

Yeah, I absolutely hate the situation with the water pump and I'll address it in the next episode.

That said, I spoke to another builder and E31 restorer here in Germany (Wokke) who's been doing these M73/M70 hybrid builds since 2014 and he always grinds the water pump impeller and never experienced any issues. So it will work.

But still, it really bugs me and I don't want to leave it like that. I ordered a pair of new pumps and I'm gonna send them to a CNC machine shop and see if it's possible to transfer over the M73 impeller on the M70 pump.
If not, then see if the coolant pipe connection can be modified. M73 has a quick disconnect hose connection while M70 has standard clamps, but the angle is different too. Either way, hopefully I'll find a more elegant solution.

Great to see you found Wokke he is (in my opinion) the best authority on anything E31 related in the EU. I have gone to him many times back when I had my E31 6spd (exact same color combo as yours), and have never failed to be blown away by his knowledge of the platform. I also had his DME tuning chips and they totally transformed the car. Are you going to use him for the DME tuning for the M70/3?
Appreciate 1
DrFerry6748.00
      02-14-2024, 05:04 PM   #561
Sreten
New Member
146
Rep
9
Posts

Drives: E92 M3, E39 M5
Join Date: Aug 2022
Location: Frankfurt

iTrader: (0)

Yes, Wokke is extremely knowledgeable when it comes to E31 and his DME chips for stock E31s are great. Since I'm running a different setup compared to what he normally does, someone else will do the tune for me.
Appreciate 2
Mani5915560.00
      02-21-2024, 09:40 PM   #562
M3_Legend
Lieutenant
M3_Legend's Avatar
United_States
376
Rep
490
Posts

Drives: BMW E90 & E91
Join Date: Oct 2014
Location: Tri state

iTrader: (2)

Quote:
Originally Posted by sergbaja5t View Post
@Sreten Thank you for videos and your content. I'm glad I'm a paetron member.
Now a days you cant please everyone. Cant wait for your videos!
"Coming up"
paetron memeber also, and I feel
the same way. Bye the way that S65 build episode is the Bible for the S65 engine great stuff.
__________________
2009 E90 M3 DCT Space Grey current
2005 E53 X5 3.0 Alpine white sold
2008 E90 M3 6-speed Jerez Black sold
2008 E90 335I 6 Speed Black Sapphire M-sport sold
2006 E53 X5 Black Sapphire sold
2011 E91 Silver Automatic sold
2006 E91 Silver Automatic sold
2007 E91 Black sapphire 6 Speed Manuel current
Appreciate 2
tcphoto4004.00
      02-23-2024, 08:04 AM   #563
sergbaja5t
Private First Class
sergbaja5t's Avatar
63
Rep
157
Posts

Drives: 2011 E92-M3 Comp
Join Date: Feb 2013
Location: United States

iTrader: (0)

Quote:
Originally Posted by M3_Legend View Post
paetron memeber also, and I feel
the same way. Bye the way that S65 build episode is the Bible for the S65 engine great stuff.
I actually referred to that video for the oil filter housing gasket refresh I performed 2 weeks ago.
Its the best amsr out for me lol.
Appreciate 1
M3_Legend375.50
      03-01-2024, 09:58 AM   #564
Mani59
Moderator
United Kingdom
15560
Rep
8,120
Posts

Drives: F32 435i Luxury & G26 i4 35
Join Date: Nov 2010
Location: Leicestershire

iTrader: (1)

Episode 9 of Project Frankfurt (E92 M3) is now available and sounds absolutely fantastic! Volume up!

__________________


Visit my (mainly) BMW gallery http://jetone.co.uk and BMW miniature model collection http://bmw-miniatures.co.uk
Appreciate 3
Jbrown74032887.00
B58 parts533.50
tcphoto4004.00
      03-01-2024, 01:46 PM   #565
Chihuahua
Brigadier General
Chihuahua's Avatar
4389
Rep
3,336
Posts

Drives: E30 329iS, E65 Alpina B7
Join Date: May 2012
Location: ATL

iTrader: (0)

Watching now, that is a seriously nice engine build. What a sound... Nice work Sreten, congrats.
Appreciate 0
      03-01-2024, 02:05 PM   #566
toxik
Lieutenant Colonel
toxik's Avatar
United_States
2779
Rep
1,947
Posts

Drives: 2017 340i xDrive 6MT
Join Date: Jun 2011
Location: Bothell, WA

iTrader: (7)

planning on picking up a e92 M3 at some point, this video was hard to watch. envy was high
Appreciate 0
      03-01-2024, 04:39 PM   #567
Jbrown7403
Captain
Jbrown7403's Avatar
United_States
2887
Rep
684
Posts

Drives: 2016 BMW M4
Join Date: Aug 2019
Location: Austin Texas

iTrader: (0)

What a machine! It is damn near showroom perfect! 🏁
Appreciate 0
      03-01-2024, 04:47 PM   #568
Tambohamilton
Brigadier General
3154
Rep
4,013
Posts

Drives: E91 330d
Join Date: Apr 2019
Location: Herefordshire

iTrader: (0)

I really wish he hadn't "fixed" the rake. He may have evened out the wheel gap, but now it doesn't sit level to the ground. Anyhow, this is the way most folk prefer it...

That UCP though...do they make them for the cars? Super envious.

Looks like someone made those rear brake lines from 303 stainless. It's still classed as stainless steel, but will turn orange in saline environments. It machines a lot more freely than most other stainless grades, which I guess is why it's been used. I share his frustration with new bolts going rusty immediately. Wish there was a permanent solution.
Appreciate 0
      03-14-2024, 11:58 AM   #569
Mani59
Moderator
United Kingdom
15560
Rep
8,120
Posts

Drives: F32 435i Luxury & G26 i4 35
Join Date: Nov 2010
Location: Leicestershire

iTrader: (1)

Time for something a little different.

Sreten mentioned to us patreon's a few months ago that he had bought a non-BMW (a Maserati).

So here is part 1 of Project Mantua - a Maserati Quattroporte GTS.

__________________


Visit my (mainly) BMW gallery http://jetone.co.uk and BMW miniature model collection http://bmw-miniatures.co.uk
Appreciate 3
dizz81486.50
Jbrown74032887.00
      03-15-2024, 06:30 AM   #570
Chihuahua
Brigadier General
Chihuahua's Avatar
4389
Rep
3,336
Posts

Drives: E30 329iS, E65 Alpina B7
Join Date: May 2012
Location: ATL

iTrader: (0)

I would rather stab my own manhood with a rusty fork while Celine Dion's greatest hits played in the background. BUT....I will definitely be watching. You're one brave soul Sreten.
Appreciate 2
Mani5915560.00
Jbrown74032887.00
      03-15-2024, 07:29 AM   #571
M-technik-3
Lieutenant Colonel
2311
Rep
1,573
Posts

Drives: E30 M3, E36 M3, 328iT, 335i
Join Date: Mar 2020
Location: western Ma

iTrader: (0)

Garage List
1995 M3  [9.00]
2007 E91  [7.25]
1988 M3  [9.50]
I went in with a pre-bias but I enjoyed it. They do sound awesome but they have the typical FIAT issues Fix It Again Tony.
Appreciate 1
Mani5915560.00
      03-22-2024, 03:15 PM   #572
Mani59
Moderator
United Kingdom
15560
Rep
8,120
Posts

Drives: F32 435i Luxury & G26 i4 35
Join Date: Nov 2010
Location: Leicestershire

iTrader: (1)

The next episode of the Maserati Quattroporte GTS series.

__________________


Visit my (mainly) BMW gallery http://jetone.co.uk and BMW miniature model collection http://bmw-miniatures.co.uk
Appreciate 2
Jbrown74032887.00
Bruuuce361.00
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:20 AM.




6post.com
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST