Max.H

Do it! I had the exact same problem with my stock pump. It's been game on since I installed the cm30! Even if you think the stock pump is working fine I would change it anyways. I felt the difference before the SC shut off.

E55AMGGG04

I'm uploading all the videos of the stock C63. It's going to take over 1 hour. I had my digital under my passenger head rest so it's not the best video but it's enuff to see the winner.

Brisk335

Also, I think the videos of you and the STOCK C63 show the pull VERY good.

E55AMGGG04

I just went over to the C63 forum only to see that every1 is questioning my "stock" status. I raced both cars and Mthis car was slightly faster then the stock C63. I'm just waiting for these videos to upload so that every1 can see that me and the stock C63 were pretty close with me beating it. Then me and Mthis car was a closer race but me still winning by 1/2 car. I will get my car dynoed to show I'm stock and run Mthis right after that. Last night I did about 10 runs just to prove the E55 is the faster car STOCK for STOCK and I have this BS now. I was very happy and proud in my cars performance, I was going home got pulled over 88 in a 50 and no signaling..i got 10 PTS now to deal with with those tickets and I still said F*** it tonight was worth it. NOWWWWWWWW I'm not stock. It really pisses me off and I can't wait to prove every1 wrong.

E55AMGGG04

Mthis told me that MHP told him that a E55 with a Cm30 pump will put down 440whp......any1 wanna chime in on that statement for me who has more knowledge??

E55AMGGG04

I put the digital camera on my head rest... still up loading more

Stock E55 vs Stock C63

http://www.youtube.com/watch?v=ByIy7TGpVfQ (rolling start at 40mph)

http://www.youtube.com/watch?v=yc5sTaZeQPs ( from a dig ) C63 no traction.

http://www.youtube.com/watch?v=SxAHmDj49NY ( rolling start at 40mph ) C63 minor head start

http://www.youtube.com/watch?v=ZLiEwkYhU4Y ( 20mph roll ) I got too excited here....

cahiil55k

That's complete BS...period! I went from bone-stock to stage 3 + Johnson CM30 pump and my total gain was around 75whp, dyno proven. To say the pump accounts for more than half of that gain is ridiculous. That's like saying the pump is as good as a 50-shot of nitrous.

The pump is good for 80whp if you were losing 80whp from supercharger shutdown due to a bad stock pump, but that's not a gain.

Brisk335

On a dynojet, from what i remember the E55's stock are making around 400-420whp sae corrected. Doing back to back pulls is where you would see the stock pump failing as im sure the WHP would fall significantly after each run.
With the cm30 pump, technically you should be making the same power as a cool run on a stock pump as you would on a cool run on a cm30 pump, its the multiple runs after where the difference would show?

Cahiil55k is right, im not sure if MHP was mistaken or didnt understand the question correctly, but depending on the dyno you can make that much stock dyno glory FTW! But im not seeing a 440WHP run on a stock E55 on a properly calibrated SAE corrected Dynojet. sorry.

mthis

dawgs theres no biggi you stock or not you car is faster thats it.
thursday im going to dyno my car to check my tune if you wanna come you more then welcome. its in n.j 5 min from the outer.

prodigymb

every subsequent pull of an E55 on a dyno will give less power. car heat soakes no matter what pump you have.

FIY the CM30 flows just as good as the new oem replacement pump. CM30 just doesnt break as often. It's purely a reliability mod.

Brisk335

Yes, i think i mentioned that in my post above. But compared to the old bosch pump the CM30 reduced heat soak after each run, esp. a failing one. I dont know how the new pump is but ill take your word on it.

prodigymb

CM30 would only be beneficial in reducing heat soak when compared to a failing OEM or aftermarket pump. if the OEM pump is fine then there is no benefit really.

Brisk335

Yes, i agree 100% there. But, I thought the old OEM bosch pumps were terrible compared to the NEW bosch pumps? I thought that is what i was getting the idea of here. Terrible in that the OLD OEM pumps werent as consistent after the intial WOT in reducing IAT temps and failed prematurely on there own, im guessing the new pumps dont.

Back to the question at hand, upgraded H/E pump isnt going to gain you any power, the intial cool run on a OEM pump or EVEN a failing pump will yeild the same results. After that intial run where the IAT begin to rise is where things get different.
A failing pump of course will not be able to handle the high IAT and you begin to lose power after the first WOT run.
A good working OEM pump or aftermarket CM30 will do the same exact thing, begin to address the IAT temps as they should, so they get lower and the power is consistent, no where in between all this does the CM30 do anything different or add anything extra.

mthis

Does anyone know the weight of a e55 with pan roof.

My car is 4068 with me in the car and 1/4 tank of gas plus my pass that 225 that's almost 4300. Is a e55 lighter then me or more heavy bc on this tune that I have I put down 428rw. And that comes to 10.05 lb per rw horse

chiromikey

e55 with pano, 1/4 tank of gas and a 200lb driver is going to be around the 4500lb mark, give or take a bit.

mthis

Say it's 4500 and he makes 420 rw his at 10.71 lb per rw horse

mthis

10.05 lb per horse to 10.71 And he was walking me from 45 to 120 if this Is correct it make no sence

so for him to be at 10lb per horse he has to be at 450rw.

lowprofile

It's not all about peak HP. Area under the curve is what you should looking at.

E55AMGGG04

What time does this dyno place close? I can be in s.i sometime from 5-6 630 not sure. If they close at 8 I can definetly make it other then that I can't make it earlier.

E55AMGGG04

I can't wait to see the dyno results. You cant be at 428Whp otherwise you would def be beating me.

Vic55

A winning comment here....

I had an E55- best dyno was 505 hp. Other E55's dyno'd 20-30 hp higher at the same shop but my car was faster- low end and mid range via the dyno curves gave the empirical data and the street showed the facts.

Who cares about peak hp (well I care but you get my point )- these cars rarely reach that peak rpm range anyways. I think if we were talking about the S85 engine in an M5 or M6 the peak hp would be more meaningful since those cars are clearly more potent at high rpms (over 6k rpms) and thats where they are driven or at least where I drive my M6. A car making 30-40 hp thru the sweet spot in the curve over a wide range is better than one that only peaks at the end.

This is why dyno tuning is so important. Have the ECU tuner at the dyno so he can get you the flatest and tallest curve possible.

Blackedout335i

E55AMGGG04,

I spoke to ur cousin last night, Brisk, and I am down to get involved in these runs out in S.I.
I am getting my new Board for my tune within the next week that runs more boost (beta version). I also have to bring my car into BMW to get my fuel pump checked out soon so I will be ready to rock in a few weeks if you guys are up for it.

I was suppose to run MThis over the winter time but it never really panned out especially with each others busy schedueles for work. But you guys should set up a meet and promote it on the different forums so we could get a nice little car meet going. Let me know what you guys think...........



Kyle

Blackedout335i

BTW I am the same guy who ran your E55 out in Westbury last year sometime......

LB63

Oh god, now our MB brethren are starting to sound like the M fan boys.

Can't we all just get along

E55AMGGG04

Yeah I spoke to my cousin he told me. Everything sounds good man I also have a nissan skyline who wants to run me from s.i. We can definetly get a good turn out. Last time I raced you I had that failing IC pump which was resulting into my supercharger shutting off but I installed a new CM30 pump and don't have that problem nemore. I would love to do this all this weekend. I just need to get this dyno done with Mthis to shut down these guys who think I'm lying about being stock.