Classic Thunder Build - Duracel79 - England
Re: Classic Thunder Build - Duracel79 - England
Well that took a while but i've added ~original to the pictures in the whole thread.
Strange as I could see all the images before and after the change.
Strange as I could see all the images before and after the change.
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
- Jeroen
- Site Admin
- Posts: 29287
- Joined: Tue Sep 14, 2004 12:23 pm
- My E21(s): '81 323i Baur
- Location: The Netherlands
- Contact:
Re: Classic Thunder Build - Duracel79 - England
Thanks for all the updates, enough going on over there to keep you busy! Any idea what caused the oil starvation? Usually the ///M engines are well protected on that front afaik.
Regards/groeten, Jeroen
Re: Classic Thunder Build - Duracel79 - England
With the previous install in the Yellow car, the sump was modified with a small capacity (~4.5litres) to allow the engine to be stood up taller away from the RHD brake setup. This works fine for road use and track use with trackday style tyres.Jeroen wrote:Thanks for all the updates, enough going on over there to keep you busy! Any idea what caused the oil starvation? Usually the ///M engines are well protected on that front afaik.
Once I'd added the splitter/diffuser and slick tyres, it is now generating much more cornering forces.
I can see from my on board videos of Brands Hatch the oil pressure dropping to near zero psi through most right hand corners (the standard oil light only flickered once as they are only set for 5 psi) and flicking back up once in a straight line.
After 8/9 laps of that the bearings would have been worn, got hot and one big end decided to seize when lifting off the throttle, snapped the rod and the rest became a bit mess .
The new engine is now back at the correct angle with a standard E34 M50 sump with a baffle and I have also fitted an accusump system that retains oil pressure to be released into the engine if any starvation occurs. The oil pressure doesn't go below 40psi now at any point on track.
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
- Jeroen
- Site Admin
- Posts: 29287
- Joined: Tue Sep 14, 2004 12:23 pm
- My E21(s): '81 323i Baur
- Location: The Netherlands
- Contact:
Re: Classic Thunder Build - Duracel79 - England
OK takes quite some money and efforts, but better now!
Regards/groeten, Jeroen
Re: Classic Thunder Build - Duracel79 - England
Some good fun at the BHP show at Lydden Hill, bedding in brakes and being gentle on the brand new engine
https://www.youtube.com/watch?v=j8FIvQ8Agm4&t=0s
https://www.youtube.com/watch?v=j8FIvQ8Agm4&t=0s
Last edited by Duracel79 on Tue Jan 26, 2021 9:50 am, edited 3 times in total.
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
Re: Classic Thunder Build - Duracel79 - England
On to Mallory park and the first race meeting of the year for me
https://www.youtube.com/watch?v=Bs76TF6fvxg&t=0s
https://www.youtube.com/watch?v=Bs76TF6fvxg&t=0s
Last edited by Duracel79 on Tue Jan 26, 2021 9:50 am, edited 2 times in total.
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
Re: Classic Thunder Build - Duracel79 - England
Some pics from Snetterton in September
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
- Mihajlo
- E21 Pro
- Posts: 549
- Joined: Thu Aug 23, 2007 11:07 am
- My E21(s): 1982 315swap323i
- Location: Croatia - Rijeka
- Contact:
Re: Classic Thunder Build - Duracel79 - England
That’s a proper way to use an E21
Understeer is when you hit the wall with the front of the car. Oversteer is when you hit the wall with the rear of the car.
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.
- Peter V.
- E21 VIP
- Posts: 12000
- Joined: Sun Mar 30, 2008 12:42 pm
- My E21(s): '82 320/6
- Location: Breda, Nederland
Re: Classic Thunder Build - Duracel79 - England
Very nice view!
Gr Peter V.
.Some say he eats nuts and bolts for breakfast, all we know is he is called the carburetorman.
BMW E21, 1981 320/6 Ascot Grau.
BMW E85, 2004 Z4 2.5i Sterling Grau.
BMW F31, 2017 320dA EDE Luxuryline Mineral Grau.
.Some say he eats nuts and bolts for breakfast, all we know is he is called the carburetorman.
BMW E21, 1981 320/6 Ascot Grau.
BMW E85, 2004 Z4 2.5i Sterling Grau.
BMW F31, 2017 320dA EDE Luxuryline Mineral Grau.
- Jeroen
- Site Admin
- Posts: 29287
- Joined: Tue Sep 14, 2004 12:23 pm
- My E21(s): '81 323i Baur
- Location: The Netherlands
- Contact:
Re: Classic Thunder Build - Duracel79 - England
And the engine is keeping well now?
Regards/groeten, Jeroen
Re: Classic Thunder Build - Duracel79 - England
All good so far, in the video's you can see the central gauge is oil pressure and keeps over 40psi+ everywhere now
I just need more seat time to get confidence to push the car harder.
Biggest improvement would be to upgrade the squidgy bit attached to the steering wheel.
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
Re: Classic Thunder Build - Duracel79 - England
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
Re: Classic Thunder Build - Duracel79 - England
Thanks. its always a good view from any E21's driving seat
1982 323i (S54 "Test Mule" - to be rebuilt into M20 powered track car)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)
1983 316 (Taiga Thunder - The refined S54 Race car)
1982 635csiA (New project)
1985 728iA (For Sale)
2004 330d Touring (The Daily Hack / Tow Car / Load lugger)