Pulley Size to Boost Calculator
Super Moderator
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
Get real business friendly with your tuner (OE?), data log, and monitor your AFR via wideband whenever beating on it.
Then you’ll be your own expert on the subject by forestalling conjecture and interweb keyboard jockeys.
Having enough salary/fun money stashed away for meltdowns is advisable before turning up the wick, too.
Your warranty notwithstanding, my MBW buddy ScottW might hunt you down for fraud j/k.
M113K photo credits withheld owing to privacy concerns. He is a member here though.
Super Moderator
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
Those age old bugaboos of too lean and pre-ignition and/or detonation conspired once again to take down yet another previously healthy powerplant.
btdt so my photo albums are fife with the inevitable destructive hardware testing results of erring on the sides of too lean, too advanced, and too much boost. Learned right quick that this isn’t an inexpensive hobby or one ideally suited for dilettantes after blowing up rides during a misspent youth. Persevered and eventually found slightly more conservative paths toward acceptable component life and durability…while still getting my kicks.
Our cast hypereutectic pistons stand little chance of a long and healthy life when tuning and operating conditions exceed their relatively fragile mechanical integrity. Full disclosure requires pleading guilty to breaking forged pistons though, too. Otherwise our AMG engines have more often than not proven hell bent for strong.
Happy motoring. :)
btdt so my photo albums are fife with the inevitable destructive hardware testing results of erring on the sides of too lean, too advanced, and too much boost. Learned right quick that this isn’t an inexpensive hobby or one ideally suited for dilettantes after blowing up rides during a misspent youth. Persevered and eventually found slightly more conservative paths toward acceptable component life and durability…while still getting my kicks.
Our cast hypereutectic pistons stand little chance of a long and healthy life when tuning and operating conditions exceed their relatively fragile mechanical integrity. Full disclosure requires pleading guilty to breaking forged pistons though, too. Otherwise our AMG engines have more often than not proven hell bent for strong.
Happy motoring. :)
MBWorld Fanatic!
Joined: Oct 2011
Posts: 2,279
Likes: 27
From: A to the Z (the state)
'06 E55
Boy, that sure is one unlucky S.O.B.
Oh, wait... that was my engine last year.
That's what a clogged injector can do for ya. Oh, and it happened THE DAY AFTER my warranty expired. That was cylinder 3. Looped fuel rail and larger injectors were installed maybe 2000 miles before this. Wideband system was planned for upcoming install, but was not on yet.
It sucked and was expensive. Buy your Zeitronix suite early.
Oh, wait... that was my engine last year.
That's what a clogged injector can do for ya. Oh, and it happened THE DAY AFTER my warranty expired. That was cylinder 3. Looped fuel rail and larger injectors were installed maybe 2000 miles before this. Wideband system was planned for upcoming install, but was not on yet.
It sucked and was expensive. Buy your Zeitronix suite early.
Super Moderator
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
MBWorld Fanatic!
Joined: Jul 2004
Posts: 1,276
Likes: 5
From: California
2018 E63S AMG, 2003 SLK 230 Sport, 2004 SL 600, 2006 SLK 55 AMG, 1998 E320 Wagon
Boy, that sure is one unlucky S.O.B.
Oh, wait... that was my engine last year.
That's what a clogged injector can do for ya. Oh, and it happened THE DAY AFTER my warranty expired. That was cylinder 3. Looped fuel rail and larger injectors were installed maybe 2000 miles before this. Wideband system was planned for upcoming install, but was not on yet.
It sucked and was expensive. Buy your Zeitronix suite early.
Oh, wait... that was my engine last year.
That's what a clogged injector can do for ya. Oh, and it happened THE DAY AFTER my warranty expired. That was cylinder 3. Looped fuel rail and larger injectors were installed maybe 2000 miles before this. Wideband system was planned for upcoming install, but was not on yet.
It sucked and was expensive. Buy your Zeitronix suite early.
I'm not exactly sure *why*, but whatever.
So basically, a fuel rail is still a good idea despite having mid-tube headers which would relieve some boost if I stack a 175. Suppose I'll talk w/BenzWorks about it and see what they think.
MBWorld Fanatic!
Joined: Sep 2006
Posts: 1,921
Likes: 173
From: Long Island New York
2003 SL55,2020 GTC ,2017 GTS sold ,2002 G500 Sold,2003 SL500 Sold,
Pulleys
So what type of boost would a 168 and an 83 have Kleemann headers and cams 82mm throttle body from what I'm reading headers will lower the boost,cams too I guess ?
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Super Member
Joined: Nov 2011
Posts: 789
Likes: 14
2003 E55
Any reason why the boost calc from 180/83 jumps up .8psi of boost from 195/90 seems like a big difference? I'd also add as a warning as you approach the yellow zones pinning the crank pulley is a must I spun/broke a keyway and blower snout at 175/77 combo
Super Member
Joined: Nov 2012
Posts: 698
Likes: 16
From: Germany
C215 CL55 AMG, W124 500E, W210 E430, W124 300E
The stock ones never get clogged (if you let the engine run periodically). Also when a injector gets "clogged" you would have noticed it that one cylinder is failing by unevean running of the engine, right?
Please tell us more what happened exactly and where did you got your injectors from?
MBWorld Fanatic!
Joined: Oct 2011
Posts: 2,279
Likes: 27
From: A to the Z (the state)
'06 E55
I don't know how it happened. We didn't know the cause until the new block went in. The car fired up, but did not run right. Cleaning out the injectors (after a lot of troubleshooting) had it purring like a cat.
The injectors came from a shop that had a really good reputation here until they stole a bunch of money from one of our members.
The injectors came from a shop that had a really good reputation here until they stole a bunch of money from one of our members.
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,599
Likes: 102
From: Florida
A Merc
I suspect that your engine failed like many others here because of the dreaded hiccup except at the time no one really knew what it was and like you many have said that they were just cruising and just upped the gas a little and it popped or something along those lines. Like you said you weren't logging so it's hard to say 100%
Senior Member
Joined: Jul 2010
Posts: 420
Likes: 0
2006 cls 55 amg
Senior Member
Joined: Jul 2010
Posts: 420
Likes: 0
2006 cls 55 amg
Super Member
Joined: Nov 2011
Posts: 789
Likes: 14
2003 E55
IMO yes the FSP tune is resolved the problem is the "hiccup" problem isn't and on a FSP car the hiccup is much more pronounced to the point of effecting drivability. So if you have a hiccup less car do it. If you're already fighting the hiccup like most of us the FSP is only going to make it worse. But I have to say the FSP transforms the feel of our cars and turns it into a violent torque on demand throttle sensitive "hot rod" type feeling that I love. Is it worth it? IMO yes. Night and day feeling from the big CP clutched cars that still have a laggy feeling.
Super Member
Joined: Dec 2009
Posts: 848
Likes: 6
From: New Cumberland, PA
ML63
I don't understand why if you have the hiccup with the FSP why not why not try an 80mm TB or a stock 74 TB and see if that resolves the problem.
Then work you way back up or have tuner see what changed in logs.
It seem people here don't like to take small steps.
They like large leaps which makes it hard to find issues.
Then work you way back up or have tuner see what changed in logs.
It seem people here don't like to take small steps.
They like large leaps which makes it hard to find issues.
