E55AMGGG04

What happens is I floor the throttle all the way and I'm barely moving. I had to wait a few minz b4 each run so it would turn back on. I never had it happen to me that bad though. I've gotten maybe 4-5 runs and then i t happen. Last night after my first short run it just turned off.

E55AMGGG04

Where can I get it installed if purchased? Sorry for all the quesions its just driving me crazy.

E55AMGGG04

I just posted other videos up. From a dig I got it. From a 20mph roll I got him too but it looked liked he could have passed me up if we woulda kept going.

E55AMGGG04

I'm going to order 1 from Letmotorsports most likely today. Has anyone ever installed one of these pumps on a E55, if so PM and I'll pay for installation.

Vic55

As Chris Berman always says:

"Thats why they play the games"

Oxygen

Oh yes yes... glad you got my run with him on video!

The kid asked me afterwards to go racing with him on the highway... LOL!

V12Godspeed

Where did you guys run?...Sure wish we would have paired to see which twin tweezy pulls ahead..lol!

MJ50

i simply downshifted to 2nd on the re-run and made a huge difference in result... after the dyno day, i understand y... torque curve maxes at around 5~6k rpm on our cars...

TopGun32

the supercharger is controlled by a magnetic plate.. on the front pulley section.

If the plate is engaged at a certain speed or engine load.. the kompressor add power.

if the DME sees the IAT's reach near 200F it will literally disengage the plate and it will let the motor run without the kompressor..

our cars have both a bypass valve and magnetic clutch.. most aftermarket products just have a bypass valve to control when boost is applied or not.

lesson:

if you don't data log your car and dont know if your IAT's are under control....

please!!! dont race!

V3 with race gas is just as good as JB3 with Race gas.. both products are very similar in output.

I still give the Edge to JB3 since I have seen better dyno results.

the white coupe had down pipes, v3, and FMIC.. which is nice combo. Probably just needs the intake and some exhaust mods.

E55AMGGG04

The run with S600 was in the spot he said to go the first time by the entrance of best buy.

Timeless

LET might be still digging out after the floods...so make sure they can get it to ya.

I noticed from the vids that sometimes I heard your supercharger whine and sometimes I did not, so I believe it is definitely intermittent at best.

Also, did you manually shift down to the lowest gear before you floored it?

Good luck with the upgrades.

NYC E55

Damn, wish I made it out last night... I missed some fun runs. Let's set it up again for next week with the 335i vs a few other misc cars. lol.

E55AMGGG04

Yeah I'm going again next week. I don't have any friends with a faster car then my E55. I'm have my friend's 335i coupe, ST8 jeep, 335xi(jb2,intakes), G37, IS350, RS4, and a type-S come by next week. I'm going to call the guy with the V3 335i also. It should be fun.

V12Godspeed

I thought you were coming...I was looking for your white E last night...

E55AMGGG04

When I raced I had it in Sport and shifted manually down to the best gear possible. As for the whine, I couldn't tell myself but the 335i made videos also which I want to see also so I should be abke to hear it better.

Vic55

We need to do some west coast (mexico) runs soon. Who is down?

E55NURBURG1

i agree 100%!
i had the same problem, i was racing and my supercharger had the same shutting off feeling or it was disengaging, felt like a 4 cylinder lol.
anyways this happened after about 4-5 full throttle runs. my tech told me that my IAT were rising and the car has a disengagin point to protect the car.
so i thought maybe my IC pump got old and wasnt doing its job anymore. i went and bought a new IC pump and got it replaced. it felt pretty good after about 5 runs it was holding up, my tech told me my IAT were still rising just as fast aswell besides getting the new IC pump. after a few months i ended up changing it again! with about the same results. same OEM PUMP.

i ended up racing the same car with both new pumps, they didnt help at all for any power or keeping power up!

overall until your car goes into this limp 'TYPE' mode with the sueprcharger disconnecting or disengaging, the power seems to be in the same range maybe with a couple HP lose from the IAT going up the car most likely pulling timing a bit and the car overall getting heatsoaked.


if you think ur gonna get a new IC pump and go and beat the same car, that isnt going to happen, but your SC wont disengage so your gonna get more runs in and your SC wont keep "shutting off"

BTW, OEM is good, but u can get better if you dont care for OEM stuff and if u have warranty.

GL

your probably gonna need a pulley or tune to beat him, maybe even exhaust and intake alone will do it

btw dont forget the 335i gets pretty bad heatsoak from there twin turbos, except there shut off point is much higher, there IAT are also higher then the E55's engine as my tech explained.
that 335i was probably pretty heatsoaked as is.
good chance would be try to get the 335i heatsoaked before running him

sound 8

Thanks topgun32 you explained it well.
Now my problem is with a S600 which is turbo, and I don't seem to get
good throttle response even in sport mode. Unless you really kick it it feels
like the more throttle you give the slower it goes, and then suddenly it will
take of. I.m sure one of you guys has an Idea what it could be.

obsidian05e55

My pump was soo bad i would barely get 1 hard pull before the kompressor shut down, and even when it wasnt shut down it felt sluggish. I ordered the Johnson CM30 from LETMotorsports over a month ago, still on BO im told, so i installed the upgraded bosch unit in the meantime. Car is MUCH MUCH stronger now, and it takes 5-6 hard pulls to shutoff now...

E55AMGGG04

I'm not looking for HP with a new pump. I'm hoping that it will help stop my supercharger from turning off every run I have. if i wanted HP I'd get a pulley or ecu tune. My main objective right now is to get the new pump. I think it will help my car. I keep calling Letmotorsports but they don't answer.

Newzchspy

I thought the same thing from the vids. If I were you, here's the solution 1. Get the Johnson Pump 2. Get a CODE III pulley (about $600.) 3. Get a tune (Chicago X or Jerry at LET) for about $499.00 Later, you can get a HE IC for the car (Code III is doing a Spearco unit that we've all been waiting for)

Once that's done, I can't see that 335 pulling on you at all. Don't forget, we're looking at a highly modded 335 against a stock E55. I don't see the comparison. Call us back when you get the pump replaced (this is a very common problem leading to high IATs on the E55 and C32. Most of us have been there , done that. The fix is about 30 minutes.

obsidian05e55

You wouldnt get HP anyways, but the HP u have will be more consistant! Done think LET even has the pumps yet. Mine has been on back order for over a month from them.. Try Ebay

E55NURBURG1

i agree again here. i was trying to get that across with my experience.

but it seems like the OP's IC pump is at about the same stage my was, about 5-7 full throttle blows and the cars SC disengages.

when u go 1-2 times full throttle 5 second bursts and it shuts down, you IC pump is shot, and your def losing power since the IAT are more then likely staying really high from the get go.


again your IC seems to be what the OEM equipment seems to be putting out, your IC stilll seems very functional.
the ony way you will gain HP is as stated above, if you SC is going out from 1-2 punches of the throttle.

HP you will def gain if your pump still seems mediumly strong. and your can sustain multiple full throttle runs without the SC dis-engaging.

you cant forget as i mentioned as much heatsoak you were building, the 335i was probably buidling just as much if not more since he is on a stock size upgraded intercooler with stock pipping running 15 psi!!! he must have been heat soakes pretty bad aswell.

P.s. for what its worth, the supercharger sounds doesnt just go away, if the SC disengages you can def feel it, and the OP car would have turned into a 4 cylnder. there would be no way he can even accel that hard.

E55AMGGG04

I've been searching and searching and still 0. I can't find anyone selling this pump.

NYC E55

I ended up getting stuck at work, I'm game for next week. Have your friend with the 996TT come out and I'll have the Z06 and Cobra's out. We can mix it up between some fun car.