Fuel Injector Data
MBWorld Fanatic!
Joined: Apr 2007
Posts: 1,154
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
here is a website i found awhile back with bosch fuel injector part numbers and flow numbers.
http://www.injectorcleaning.co.uk/flow.htm
http://www.injectorcleaning.co.uk/flow.htm
unfortunately, still no show for SLR injector
in any case it seems that SLR fuel system is quite different than in 55K:
- 2 fuel pumps there (in parallel , just to double the pressure .. ) instead of 1 only
- 2 pressure regulators, instead of one
and ... even one thing which seems a "fuel cooler" (part n. 1404760217)
Senior Member
Joined: Jul 2007
Posts: 327
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Sorry to bring this thread back from the dead but according to the BOSCH techies the SLR injectors are rated at 339 grams per minute. That's 44 pounds per hour, which is 462cc/min. All of that is at 43.5psi of fuel pressure.
Assuming the SLR runs 80psi of static fuel pressure like the other v8 AMG cars, the injectors are then rated at 59.6 lb/hr(625cc/min).
If you want to figure out what your injectors will flow at a different pressure use this formula:
*Square root of* (new pressure/old pressure) *times* injector flow
Assuming the SLR runs 80psi of static fuel pressure like the other v8 AMG cars, the injectors are then rated at 59.6 lb/hr(625cc/min).
If you want to figure out what your injectors will flow at a different pressure use this formula:
*Square root of* (new pressure/old pressure) *times* injector flow
Last edited by Max Hughes; Sep 15, 2009 at 12:05 AM.
MBWorld Fanatic!
Joined: Apr 2007
Posts: 1,154
Likes: 1
From: Italy
cls 55 or FIAT Coupe T20v-6speed
Sorry to bring this thread back from the dead but according to the BOSCH techies the SLR injectors are rated at 339 grams per minute. That's 44 pounds per hour, which is 462cc/min. All of that is at 43.5psi of fuel pressure.
Assuming the SLR runs 80psi of static fuel pressure like the other v8 AMG cars, the injectors are then rated at 59.6 lb/hr(625cc/min).
If you want to figure out what your injectors will flow at a different pressure use this formula:
*Square root of* (new pressure/old pressure) *times* injector flow
Assuming the SLR runs 80psi of static fuel pressure like the other v8 AMG cars, the injectors are then rated at 59.6 lb/hr(625cc/min).
If you want to figure out what your injectors will flow at a different pressure use this formula:
*Square root of* (new pressure/old pressure) *times* injector flow
Thank you !
. so finally we got the comparo: 462cc of SLR vs 412cc of 55K
ps: please post a link for those SLR data
Last edited by dyno; Sep 15, 2009 at 03:06 AM.
Thread Starter
Out Of Control!!
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haters crazy
The numbers I posted were numbers generated by flow testing both sets of injectors
The NA V8 AMG cars do not run 80PSI static fuel pressure
The NA V8 AMG cars do not run 80PSI static fuel pressure
Last edited by blackbenzz; Sep 15, 2009 at 11:38 AM.
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Joined: Jun 2008
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From: Texas
2003 CL55
Great info!! Anyone know what the S, CL, SL 65 V-12 injector size is? Maybe be another good option.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
MBWorld Fanatic!
Joined: Apr 2007
Posts: 1,154
Likes: 1
From: Italy
cls 55 or FIAT Coupe T20v-6speed
Thread Starter
Out Of Control!!
Joined: Feb 2003
Posts: 13,489
Likes: 96
haters crazy
Sorry. Definitely not 560cc, it was 516 or 517. I can check for you when I get home
Senior Member
Joined: Jul 2007
Posts: 327
Likes: 2
That would make the injectors flow 519cc/min. Pretty close
.I just got bored and called acting like a concerned SLR owner lol. The techy emailed me back with the info.
Last edited by Max Hughes; Sep 16, 2009 at 11:15 PM.
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