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Walnut blasting dyno results #4670943
02/19/18 02:04 PM
02/19/18 02:04 PM
Joined: Mar 2013
Posts: 161
The Netherlands
Tommiee Offline OP
Tommiee  Offline OP
Joined: Mar 2013
Posts: 161
The Netherlands
I work at a tuning company and also do some specialist things like DSG diagnosis/repairs, DPF cleaning( not the cheap way but the good way ), DPF removals, tranny flushes and intake cleaning.

Wanted to share this walnut blasting cleaning with you guys. I'ts my dads car, recently bought. '08 Mini clubman john cooper works 211hp. 1.6 direct injected turbocharged engine.

When i drove it i felt like it was holding back, hesitating and not delivering power.

I have put the car on our superflow 4x4 dyno and measured. Then cleaned the valves using our walnut blasting tool and after that used the tunap valve clean spray with running engine.

Let these results speak for themselves

Black lines stock before valve cleaning. Red lines after cleaning







Stock with dirty valves 191 hp
Stock with cleaned valves 211 hp ( exactly as per manufacterer! )

Testdrive after cleaning also confirmed a drive without hesitation and improved performance.


Last edited by Tommiee; 02/19/18 02:28 PM.

Seat Leon 2.0T FSI 2007 380HP / 370 lb ft
Petronas Syntium 7000 0W40 + LM Ceratec
Mahle Filter

Suzuki Alto 1.0 2011
Shell Helix Ultra 0W20
Re: Walnut blasting dyno results [Re: Tommiee] #4670980
02/19/18 02:32 PM
02/19/18 02:32 PM
Joined: Nov 2003
Posts: 1,212
Middle of Iowa
DriveHard Offline
DriveHard  Offline
Joined: Nov 2003
Posts: 1,212
Middle of Iowa
cool pics, some of the worst valves I have seen!!


Smile, it increases your face value
2013 Fiat 500 Abarth mod heavy (my DD)
2018 Alfa Romeo Stelvio TI Sport (wife's)
2011 Silverado Crew Cab LT 6.2L/6spd (tow pig)
2007 Nissan Xterra (trail toy)
Re: Walnut blasting dyno results [Re: Tommiee] #4670981
02/19/18 02:33 PM
02/19/18 02:33 PM
Joined: Jun 2003
Posts: 10,535
Illinois
javacontour Offline
javacontour  Offline
Joined: Jun 2003
Posts: 10,535
Illinois
Looks like about a 10% improvement in most of the plots. Not bad.


network down, IP packets delivered via UPS -BOFH
Re: Walnut blasting dyno results [Re: Tommiee] #4670983
02/19/18 02:34 PM
02/19/18 02:34 PM
Joined: Mar 2013
Posts: 161
The Netherlands
Tommiee Offline OP
Tommiee  Offline OP
Joined: Mar 2013
Posts: 161
The Netherlands
Me too drive hard
Could not believe my eyes when i saw these with only 70k miles on the car..


Seat Leon 2.0T FSI 2007 380HP / 370 lb ft
Petronas Syntium 7000 0W40 + LM Ceratec
Mahle Filter

Suzuki Alto 1.0 2011
Shell Helix Ultra 0W20
Re: Walnut blasting dyno results [Re: javacontour] #4670985
02/19/18 02:36 PM
02/19/18 02:36 PM
Joined: Mar 2013
Posts: 161
The Netherlands
Tommiee Offline OP
Tommiee  Offline OP
Joined: Mar 2013
Posts: 161
The Netherlands
@javacontour
Yes, and also notice the curve being more straight with a lot less pikes in the high rpm area.

Last edited by Tommiee; 02/19/18 02:37 PM.

Seat Leon 2.0T FSI 2007 380HP / 370 lb ft
Petronas Syntium 7000 0W40 + LM Ceratec
Mahle Filter

Suzuki Alto 1.0 2011
Shell Helix Ultra 0W20
Re: Walnut blasting dyno results [Re: Tommiee] #4670993
02/19/18 02:42 PM
02/19/18 02:42 PM
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,231
Where the wind comes sweepin'
Does the blasting media get vacuumed out? Or what happens to it?

Re: Walnut blasting dyno results [Re: Tommiee] #4670994
02/19/18 02:42 PM
02/19/18 02:42 PM
Joined: Mar 2016
Posts: 1,013
PA,US
HemiHawk Offline
HemiHawk  Offline
Joined: Mar 2016
Posts: 1,013
PA,US
Thanks for doing this and sharing the results! I've been worried about build up on my GTI. It looks like catch cans reduce the problem somewhat, but not all together. And good cans for some of these cars are so expensive you might as well just drive it until it needs a cleaning.

That power number is also great, seeing the rated number at the wheels is always good. Is that torque number ft/lbs?


2016 Nissan Frontier Pro4x
2017 VW GTI sport
1995 Mustang GTS
Re: Walnut blasting dyno results [Re: Tommiee] #4671001
02/19/18 02:48 PM
02/19/18 02:48 PM
Joined: Mar 2013
Posts: 161
The Netherlands
Tommiee Offline OP
Tommiee  Offline OP
Joined: Mar 2013
Posts: 161
The Netherlands
@reddy45
Yes you vacuum it out during the blasting. Special adapters make you vacuum and clean during the same time.

@hemihawk
In europe we always talk about crank HP. These figures are crank hp and Nm. We first do a drivetrain loss measurement in the gear that we are going to use to measure te power ( 4th gear most of the times )

So its exactly 211 crank hp's and converter to lb ft its around 224 crank lb ft.


Seat Leon 2.0T FSI 2007 380HP / 370 lb ft
Petronas Syntium 7000 0W40 + LM Ceratec
Mahle Filter

Suzuki Alto 1.0 2011
Shell Helix Ultra 0W20
Re: Walnut blasting dyno results [Re: Tommiee] #4671012
02/19/18 03:05 PM
02/19/18 03:05 PM
Joined: Nov 2008
Posts: 12,761
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,761
NH
Interesting. 20hp loss, or 9%. That's a lot of crud. I suspect 9% is a detectable seat of the pants measurement

I know every engine design is different. Is it a linear loss? as in, different engine with half that crud, is it 5% loss?


2011 Toyota Camry, base, 2.5L/6MT, 170k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 195k, his
Re: Walnut blasting dyno results [Re: Tommiee] #4671016
02/19/18 03:09 PM
02/19/18 03:09 PM
Joined: Mar 2013
Posts: 161
The Netherlands
Tommiee Offline OP
Tommiee  Offline OP
Joined: Mar 2013
Posts: 161
The Netherlands
I dont think the loss is linear. I think it it doesnt lose much power in the first build up phase. But seeing the valves like this i think a little more buildup would cause the engine not to deliver any decent power anymore.

Mostly you can feel that the engine is running right. Pulling strong and linear without shocks and hesitation.

Ofcourse we have tuned the engine after all of this was done. 228 hp and 350 nm if the best we got out of this engine in complete stock form.

Last edited by Tommiee; 02/19/18 03:11 PM.

Seat Leon 2.0T FSI 2007 380HP / 370 lb ft
Petronas Syntium 7000 0W40 + LM Ceratec
Mahle Filter

Suzuki Alto 1.0 2011
Shell Helix Ultra 0W20
Re: Walnut blasting dyno results [Re: Tommiee] #4671030
02/19/18 03:37 PM
02/19/18 03:37 PM
Joined: Oct 2014
Posts: 1,077
SW Ontario Canada
KGMtech Offline
KGMtech  Offline
Joined: Oct 2014
Posts: 1,077
SW Ontario Canada
Impressive solution. What would this cost a non-family customer?


2017.5 Nissan Rogue SV FWD
2013 Nissan Maxima SV
2009 Ford Flex SEL FWD
1984 Yamaha XJ750RL
Re: Walnut blasting dyno results [Re: Tommiee] #4671046
02/19/18 03:49 PM
02/19/18 03:49 PM
Joined: Apr 2008
Posts: 37,939
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,939
Ontario, Canada
That's nuts (pardon the pun).

And this is why some people seem to have at least a somewhat rational concern about DI. Not a problem on port injection applications.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Walnut blasting dyno results [Re: Tommiee] #4671056
02/19/18 03:57 PM
02/19/18 03:57 PM
Joined: Dec 2016
Posts: 517
E. Tennessee
WhizkidTN Offline
WhizkidTN  Offline
Joined: Dec 2016
Posts: 517
E. Tennessee
Another reason I like the dual systems that have both Port and Direct Injection (ECU moves between the two depending on load/mode, etc.).
At least in this type of engine, the use of fuel tank based cleaners (and just running good Top Tier Gas) can keep the intake valves decently clean.


His: '12 Kia Optima SX - 2.0L GDI Twin-Scroll Turbo [Tuned] (76K)
>EDGE 0W-40, Fram XG9688
Her's: '14 Nissan Rogue SL AWD - 2.5L NA (75K)
>EDGE 0W-20, Fram XG6607
Re: Walnut blasting dyno results [Re: Tommiee] #4671089
02/19/18 04:16 PM
02/19/18 04:16 PM
Joined: Oct 2015
Posts: 286
Washington
Dylan1303 Offline
Dylan1303  Offline
Joined: Oct 2015
Posts: 286
Washington
How many miles or km where on it before the cleaning?


12 cruze rs 1.4t 6spd pp 5w30 tuned on 22psi
13 equinox 2.4 awd pp 5w30
Re: Walnut blasting dyno results [Re: Tommiee] #4671095
02/19/18 04:19 PM
02/19/18 04:19 PM
Joined: Nov 2006
Posts: 20,583
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,583
MA, Mittelfranken.de
That's quite an improvement. A walnut blaster that incorporates a shop vac is fairly easy to make from cheap HF stuff, they even have the shells.


ASE L1, Master. Deutsch Meisterbrief.
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