Walnut blasting?

JST · 05-25-2021, 01:33 PM

The S55 in the M3 is coming up on 40K miles, and it occurs to me that it might benefit from walnut blasting at some point soon.

Any thoughts on that? Anyone in the MD/VA/DC area have a good lead on where to get it done?

Josh (PA) · 05-25-2021, 01:37 PM

The newer DI engines don't need it nearly as often (or at all potentially) as the older N54 gen engines.

I had my n55 completed at about 90k because the intake was already removed to get to the starter that failed. It wasn't too dirty. I wouldn't bother for another 25 - 50k miles

dan · 05-25-2021, 01:41 PM

40K seems way early

*Plaz* · 05-25-2021, 01:48 PM

Yeah my N54 was waaaaay overdue for it by the time I had it done at 100k or so.

No recommendations, but your post makes me wonder, what would one blast a Tesla with to improve it?

Positrons? Prescription lithium? Humility?

Nick M3 · 05-25-2021, 01:54 PM

Alternate option: Port injection retrofit and an E85 tune.

robg · 05-25-2021, 02:24 PM

Quote:

Originally Posted by Nick M3

Alternate option: Port injection retrofit and an E85 tune.

Is that possible with BMW engines? I know on the VW EA888 engine, it's available with dual injection in europe so people have retrofitted that system into US cars (usually along with other mods such as bigger turbos). Regardless, I'm sure the cost of it would make it not worth doing just to avoid having to walnut blast every 50k or so.

Nick M3 · 05-25-2021, 02:45 PM

Quote:

Originally Posted by robg

Is that possible with BMW engines? I know on the VW EA888 engine, it's available with dual injection in europe so people have retrofitted that system into US cars (usually along with other mods such as bigger turbos). Regardless, I'm sure the cost of it would make it not worth doing just to avoid having to walnut blast every 50k or so.

It's used for big power mods as you can't really upgrade the DI injectors. Would I seriously do it to avoid walnut blasting? No. But it would solve that.

kognito · 05-26-2021, 08:29 AM

Quote:

Originally Posted by Plaz

Yeah my N54 was waaaaay overdue for it by the time I had it done at 100k or so.

No recommendations, but your post makes me wonder, what would one blast a Tesla with to improve it?

Positrons? Prescription lithium? Humility?

All the cool kids are using these . . .

equ · 05-26-2021, 09:06 AM

Hopefully the b58 follows the n55 model. Some audi engines were afflicted as bad as the n54 family but no longer remember which ones. The rs4 engine?

Nick M3 · 05-26-2021, 12:23 PM

Quote:

Originally Posted by equ

Hopefully the b58 follows the n55 model. Some audi engines were afflicted as bad as the n54 family but no longer remember which ones. The rs4 engine?

What is the N55 model exactly? We blasted Mike’s old N55 at 35k and the valves were seriously crusty.

05-25-2021, 01:33 PM	#1
JST 195 Join Date: Oct 2003 Posts: 24,611	Walnut blasting? The S55 in the M3 is coming up on 40K miles, and it occurs to me that it might benefit from walnut blasting at some point soon. Any thoughts on that? Anyone in the MD/VA/DC area have a good lead on where to get it done?

05-25-2021, 01:37 PM	#2
Josh (PA) Hello. Join Date: Mar 2004 Carmudgeonly Ride: '09 X3, '11 328xiT, '11 135i C, '17 c2, '19 X5 Location: Downingtown, PA Posts: 5,531	The newer DI engines don't need it nearly as often (or at all potentially) as the older N54 gen engines. I had my n55 completed at about 90k because the intake was already removed to get to the starter that failed. It wasn't too dirty. I wouldn't bother for another 25 - 50k miles __________________ Josh (PA) - '19 X5 '17 991.2 C2 Cab '11 135i Convertible '11 328xiT '09 X3

05-25-2021, 01:41 PM	#3
dan redefined Join Date: Oct 2003 Posts: 14,896	40K seems way early __________________ "There's a freedom you begin to feel the closer you get to Austin, Texas." -Willie

05-25-2021, 01:48 PM	#4
Plaz ••••••• Join Date: Oct 2003 Carmudgeonly Ride: '11 1M Location: Churzee Posts: 17,741	Yeah my N54 was waaaaay overdue for it by the time I had it done at 100k or so. No recommendations, but your post makes me wonder, what would one blast a Tesla with to improve it? Positrons? Prescription lithium? Humility? __________________ 2011 1M

05-25-2021, 01:54 PM	#5
Nick M3 Relic Join Date: Oct 2003 Location: Bethesda, MD Posts: 12,458	Alternate option: Port injection retrofit and an E85 tune. __________________ 2011 M3 2006 Sierra 2500HD 4WD LBZ/Allison 2004 X5 3.0i 6MT 1995 M3 S50B32 1990 325is 1989 M3 S54B32 Hers: 1989 325iX 1996 911 Turbo

05-26-2021, 09:06 AM	#9
equ Alphanumeric Join Date: Aug 2005 Carmudgeonly Ride: 981S, 340i Posts: 9,584	Hopefully the b58 follows the n55 model. Some audi engines were afflicted as bad as the n54 family but no longer remember which ones. The rs4 engine?