Try out the new beta site for E90Post. You can read more about what's happening here
  E90Post  


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Another Walnut shell blast thread



Reply
 
Thread Tools
      04-27-2012, 11:38 AM   #1
elim11
Major
439
Rep
1,325
Posts

Drives: e90m3
Join Date: Apr 2008
Location: irvine/sf

iTrader: (13)

Another Walnut shell blast thread

Hey guys,
I just got the walnut shell blasting done on my car. I signed up for this "group buy" http://www.e90post.com/forums/showthread.php?t=676703

Drew was the guy working on my car and he is a real genius when it comes to bmws. He knows them inside and out, any and all questions I threw at him he was able to answer it, even down to the torque specs for certain bolts...all off the top of his head. He works with great efficiency and most importantly skill. He made everything look so simple.

Once he pulled off the manifold and I got the first look at the valves, I was shocked. They looked disgusting, especially in cyl 4,5,6 as that is closest to the evap. Enough talking, here are the pictures. Apologize in advance, I only had the iphone and it was tough taking decent pictures. In no particular order, but the dirtiest are cyl 4-6.

Tool:




Engine apart (you can see the tool he used to create the seal to vacuum, no mess):





Dirty Valves (some pictures are duplicates..no i dont have 8 cylinders haha):









Valves Cleaned:



I know you are asking, why do I only have 2 pictures of the valves cleaned. Reason is, I got caught up talking to Richard, the guy who runs the shop about his racing story and experience. Here is one of the culprits: (yes Integra type r race car, one of my hang on the wall posters as a child)
Next thing I know, I turn around and speedy Drew has already bolted on the manifold. He was nice enough to wiggle it out just enough so I could take a "picture".

I saw the valves cleaned and they were nice and shiny..like brand new, mirror finish. It was pretty remarkable. I know people have cleaned these by hand and using gun brushes etc, but i just can't imagine that will be as effective or efficient as this walnut blast. It really does work wonders.

Results:
Idle was a tad bit smoother. I had some weird burbling/hiccuping on cold start idle and I was hoping it was attributed to this, however it is still present. Drew said it was related to my aftermarket exhaust. Idle when warm is very smooth and consistent.

Once I drove out of the shop, I got on the gas a little and was pleasantly surprised. The car just feels a tad more eager. A little more eager to rev, a little more eager to boost, it just feels happier..as do I. For anyone that is on the fence about it, I say that it should be part of routine maintenance performed every 30-50k miles.

I'll say it again, Drew is a top notch tech. He absolutely knows what he is doing. I know he is booked for the next 3 weeks with walnut blasting due to the group buy.
Thanks to drew and OP for the group buy thread.

Cheers.
__________________
Appreciate 0
      04-28-2012, 01:06 AM   #2
XPO186
Colonel
XPO186's Avatar
Philippines
140
Rep
2,740
Posts

Drives: E92 335i
Join Date: May 2007
Location: Albany, NY

iTrader: (19)

Got my car done just tonight by Drew, and my experience basically mirror's the OP's... except that Drew said mine were definitely more dirty and caked with carbon! The car really feels like the first time I drove her.
__________________
Appreciate 0
      10-07-2013, 05:06 PM   #3
nickcalbear
Registered
0
Rep
1
Posts

Drives: 2007 Alpine White/ Lemon 335i
Join Date: Sep 2013
Location: Murrieta, CA

iTrader: (0)

Anyway someone can PM me his contact info?
Appreciate 0
      10-07-2013, 07:04 PM   #4
GixxerRican
Private
2
Rep
51
Posts

Drives: 335I
Join Date: Jul 2012
Location: Naples, FL

iTrader: (0)

PM information and location Please!!! Thanks
Appreciate 0
Reply

Bookmarks


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 05:12 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, 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