Injector and MAF Size on E55 211
Thread Starter
Member
Joined: Dec 2001
Posts: 222
Likes: 0
Injector and MAF Size on E55 211
Does anyone know the injector size used in the 03/04 E55? I know I have 36lb dark blue injectors on my 2001 CLK55 and I am looking to go the next size.
I would also like to know if the MAF is larger on the 03/04 E55 than the N/A E55.
I would also like to know if the MAF is larger on the 03/04 E55 than the N/A E55.
Thread Starter
Member
Joined: Dec 2001
Posts: 222
Likes: 0
Originally posted by stephens
Don't know about the injector sizes, but the car does not use a mass flow air sensor, it uses a manifold pressure sensor instead.
Don't know about the injector sizes, but the car does not use a mass flow air sensor, it uses a manifold pressure sensor instead.
This unit has an internal MAP sensor.
I just need a larger MAF to send a voltage reading that is on the map table. It is going over 5 volts now.
I am going to try a 90mm 2003 Cobra MAF this weekend with 42lb injectors.
Thread Starter
Member
Joined: Dec 2001
Posts: 222
Likes: 0
Originally posted by dgussin1
If you dont have the MAF yet you can have mine.
If you dont have the MAF yet you can have mine.
It would really help me out with sourcing the parts.
And I do not have the MAF or the injectors yet. I was going to get them from someone local tomorrow.
What price are you looking for?
Give me a call at 631-767-0178 within the next 15 minutes if you can. I am in NY>
Last edited by sajecw; Apr 2, 2004 at 01:33 AM.
MBWorld Fanatic!
Joined: Apr 2002
Posts: 1,256
Likes: 0
From: Melbourne, Australia
E55, F550, S600 Ducati 999
Originally posted by sajecw
That is what I am kind of doing. I am using a Split Second signal modifier that will pick up the signal from the stock MAF and allow me to modify it based on rpm and vacuum/boost.
This unit has an internal MAP sensor.
I just need a larger MAF to send a voltage reading that is on the map table. It is going over 5 volts now.
I am going to try a 90mm 2003 Cobra MAF this weekend with 42lb injectors.
That is what I am kind of doing. I am using a Split Second signal modifier that will pick up the signal from the stock MAF and allow me to modify it based on rpm and vacuum/boost.
This unit has an internal MAP sensor.
I just need a larger MAF to send a voltage reading that is on the map table. It is going over 5 volts now.
I am going to try a 90mm 2003 Cobra MAF this weekend with 42lb injectors.
I have arranged for some detailed diagrams to be printed, which I hope to pick up tomorrow.
The current injectors have ample capacity, as even with increased boost, the car will by default run at nearly 10-1 AFR, which is WAY to rich for max power production.
Thread Starter
Member
Joined: Dec 2001
Posts: 222
Likes: 0
I am hoping to tune my car to run 11.8 to 12.2. I think I am going to run the stock 03 Cobra MAF and injectors and then tune the MAF tables.
I was hoping the 03 E55 had a similiar setup.
Thanks for the info Stephens.
I was hoping the 03 E55 had a similiar setup.
Thanks for the info Stephens.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
MBWorld Fanatic!
Joined: Jul 2003
Posts: 2,123
Likes: 3
From: Chicago, IL
Real Cars
You may want to consider an LS1/LS6 MAF from the C5 Corvette / Z06. This is a popular upgrade for some Japanese cars with restrictive MAFs.
The conversion you are referring to, converting from a MAF sensor to a MAP sensor is common on 4th generation Supras. However, I'm not quite following you when you say it has an internal MAP sensor. How can it be "internal" - a map sensor is usually mounted somewhere on the intake or intake manifold depending on engine configuration to read manifold pressure.
There is a product from New Zealand called the MAP ECU that basically does what you are asking. It's a piggy back system for MAF based cars that allows you to run a MAP sensor and translate it into the appropriate MAF signal to send to the ECU.
Powerhouse Racing in Texas distributes it and could probably give you some assitance:
http://www.powerhouseracing.com (site seems to be down at the moment, but this is the right address)
If you are looking for bigger injectors, asking for the ones off a 55 may not be the way to go, you may instead want to be asking the C32 guys what they are running. Less cylinders with more horsepower = bigger injectors. The 3000GT VR4 guys (twin turbo 3.0 liter V6) actually "upgrade" to the injectors found on the turbo Eclipses (2.0 liter 4 cylinder) because they are bigger (440 for the VR4, 540 for the Eclipse)
-m
The conversion you are referring to, converting from a MAF sensor to a MAP sensor is common on 4th generation Supras. However, I'm not quite following you when you say it has an internal MAP sensor. How can it be "internal" - a map sensor is usually mounted somewhere on the intake or intake manifold depending on engine configuration to read manifold pressure.
There is a product from New Zealand called the MAP ECU that basically does what you are asking. It's a piggy back system for MAF based cars that allows you to run a MAP sensor and translate it into the appropriate MAF signal to send to the ECU.
Powerhouse Racing in Texas distributes it and could probably give you some assitance:
http://www.powerhouseracing.com (site seems to be down at the moment, but this is the right address)
If you are looking for bigger injectors, asking for the ones off a 55 may not be the way to go, you may instead want to be asking the C32 guys what they are running. Less cylinders with more horsepower = bigger injectors. The 3000GT VR4 guys (twin turbo 3.0 liter V6) actually "upgrade" to the injectors found on the turbo Eclipses (2.0 liter 4 cylinder) because they are bigger (440 for the VR4, 540 for the Eclipse)
-m
Last edited by Marcus Frost; Apr 2, 2004 at 05:41 PM.
Thread Starter
Member
Joined: Dec 2001
Posts: 222
Likes: 0
This unit has a vacuum/boost line going into it. It measures the vacuum/boost and uses the corresponding MAF table.
It is basically an interceptor.
I am going to work with the stock MAF and injectors this weekend.
I am hoping for good results without putting in the larger MAF and injectors.
It is basically an interceptor.
I am going to work with the stock MAF and injectors this weekend.
I am hoping for good results without putting in the larger MAF and injectors.
MBWorld Fanatic!
Joined: Jul 2003
Posts: 2,123
Likes: 3
From: Chicago, IL
Real Cars
Originally posted by sajecw
This unit has a vacuum/boost line going into it. It measures the vacuum/boost and uses the corresponding MAF table.
It is basically an interceptor.
This unit has a vacuum/boost line going into it. It measures the vacuum/boost and uses the corresponding MAF table.
It is basically an interceptor.
It is then the exact same thing we use for our Supras (and a variety of other Japanese cars), except our Supras use a pressure sensor and an intake air temperature sensor which goes to the device and the device then translates it to the appropriate MAF signal. It used to be known as the HKS VPC. You should not have to use a MAF with this device if it's used properly, because it essentially replaces any signal the MAF would be sending to the ECU.
I am going to work with the stock MAF and injectors this weekend.
I am hoping for good results without putting in the larger MAF and injectors.
I am hoping for good results without putting in the larger MAF and injectors.
-m
