Fuel Injector Data
08-16-2009, 07:51 PM
#26
MBWorld Fanatic!
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)
09-14-2009, 11:57 PM
#27
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; 09-15-2009 at 12:05 AM.
09-15-2009, 03:03 AM
#28
MBWorld Fanatic!
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; 09-15-2009 at 03:06 AM.
09-15-2009, 09:42 AM
#29
Out Of Control!!
Thread Starter
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; 09-15-2009 at 11:38 AM.
09-15-2009, 10:44 AM
#30
PLATINUM SPONSOR
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
09-15-2009, 11:31 AM
#31
MBWorld Fanatic!
09-15-2009, 11:37 AM
#32
Out Of Control!!
Thread Starter
Sorry. Definitely not 560cc, it was 516 or 517. I can check for you when I get home
09-16-2009, 11:10 PM
#33
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; 09-16-2009 at 11:15 PM.
09-16-2009, 11:24 PM
#34
So how can you get more flow out of the v12 ones? I think I need more fuel, I hear detonation when I floor it when engine is over 90*C. Kleemann tune increased the boost and now I need more fuel.
