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Old Aug 8, 2007 | 10:34 PM
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HDDP
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Joined: May 2004
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From: Charleston, SC
Default Re: Fuel Injectors / Rail

Originally Posted by MMZ_TimeLord
HDDP,

I'll see if I can't get part numbers for you from my SRT6 this evening. I'll let you know here.

If they used smaller injectors, I wonder if that's why these cars were spec'ed lower than the SLK 320 and SLK 32 AMG. Especially if the fuel regulator is also at a lower pressure.

If both of these things are proven true, then we should be able to up our numbers with simple injector and regulator changes. (Providing that the PCM isn't monitoring the voltage to the regulator).

Thanks for your research Derek!
My thoughts exactly... Now that I have a source inside Bosch I can get the specs on all their parts providing I have the Bosch part numbers... It looks like the pressure regulator and pump are more than adequate 58 psi (per Woody) in the fuel rail... That's more than any car I've ever seen... That being said, If you can give me the part numbers of your fuel injector (both the bosch number which will be 0 280 156 ??? and on the other side will be the Mercedes part number that starts with "A" ... I can get the flow rates of your injectors as well... Also, measure the length of the plastic injector housing from end to end excluding the metal tubes... It seems they have different length injectors and mine are 48mm... yours should be the same length...

As far as robbing us of our HP... That quite could be the possibility... If your injectors prove to be higher flow than mine and they are the same size 48mm I will purchase a set of SRT injectors and install them in the car to see what happens... MY guess is the ECU will handle the extra fuel flow but will probably still do everything it can to maintain an AFR of 14.7:1 which is really what's killing our HP...

PS: the head honcho's at DC are either really clueless about this car or are the best liars in the world...
 
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