MyE28.com

start.

Drum roll.....................................so what is causing the noise that has stumped the BMW experts all over the world?

ok, um, wtf duke?

Duke

Refresh my memory. What's the sound it's making. Knocking? excessive valve noise???

Bill in MN wrote:Duke

Refresh my memory. What's the sound it's making. Knocking? excessive valve noise???

We are thinking it is a bent or sticking valve. Head has to come off and gone thru. Needed a MLS head gasket anyway. Todd will also be flowing the H6S head to see how it compares to the B35 head flow numbers.

bmwsparkle wrote:ok, um, wtf duke?

Engine has had a loud ticking noise since first started. Can't up the boost until it is fixed. I don't have the facilities or time. TCD will be fixing it.

The only thing certain is..

We need lots of pictures.

Merkin wrote:The only thing certain is..

We need lots of pictures.

No pictures of my broken M535ti allowed. There are plenty of pictures on my website of the OT project.

Well get to see the flow #s?

RussC

russc wrote:Well get to see the flow #s?

RussC

Of Course!

Duke,

The car is safely in my garage at home. Car cover on. My boys and I are leaving early tomorrow.

Drove it home tonight. It's abt 5 feet slower than my red car 40-60.

Todd

T_C_D wrote:Duke,

The car is safely in my garage at home. Car cover on. My boys and I are leaving early tomorrow.

Drove it home tonight. It's abt 5 feet slower than my red car 40-60.

Todd

Good to hear. I think that once the engine is up to par and the TEC3 is finnaly tuned, you will be pleasantly suprised and your red car will be in the rear view. Think of it and a dimond in the rough right now.

BTW - you "red" car is you megasquirt S2 right?

Duke,

Yes, my red car is full standalone. I already looked at your tuning. The timing table looks great. Almost the same as mine. Fuel looks good too. I need to work on the cold start.

Todd

T_C_D wrote:Duke,

Yes, my red car is full standalone. I already looked at your tuning. The timing table looks great. Almost the same as mine. Fuel looks good too. I need to work on the cold start.

Todd

Ok,

Well, if my car is not WAY faster than yours when you are done, I am not goig to pay you

I think water injection and 20 psi might help that though 8)

Per Electromotive manual....if the widband O2 sensors is being used to compensate more than +- 10% to keep the desire A/F Ratio, the ECU is out of tune. I think that it is around +- 20 % right now.

Duke M535ti wrote:
Per Electromotive manual....if the widband O2 sensors is being used to compensate more than +- 10% to keep the desire A/F Ratio, the ECU is out of tune. I think that it is around +- 20 % right now.

Those are words to live by. Less than 10% sounds right for correction under closed loop control. The Perfect Power SMT 7 unit uses 5% for their closed loop control.

RussC

Duke M535ti wrote:
Think of it and a dimond in the rough right now.

Just for you saying this Duke, I hate you forever. And ever. And ever. And ever.

russc wrote:

Duke M535ti wrote:
Per Electromotive manual....if the widband O2 sensors is being used to compensate more than +- 10% to keep the desire A/F Ratio, the ECU is out of tune. I think that it is around +- 20 % right now.

Those are words to live by. Less than 10% sounds right for correction under closed loop control. The Perfect Power SMT 7 unit uses 5% for their closed loop control.

RussC

Out of curiosity, 10% of what? 10% change of AFR? 10% change in injector duty cycle?

Jeremy

10% of the injector duty cycle or the engine volumetric efficiency (VE). I know MS uses VE, but I don't know about other stand alone systems.

Check out this card that I got from my wife yesterday. This is the kind of support I have from home on my car, luckily I have you guys........





She is the funiest person she knows. Gotta love her.

That's a good one from Claudia! What's under the "Cardomain" logo?

Shawn D. wrote:That's a good one from Claudia! What's under the "Cardomain" logo?

"turbo"

Here is the turbo that Todd is going to upgade my S2 kit with -



I may have to cut a hole in the hood.

hah!

I wonder what that monster starts to spool at?

Todd,
did you tell Duke about the spilt Brake Fluid yet??


No, big deal Duke really,
it can't cost too much to repaint the engine compartment....

I figure a can of Krylon and you're good to go....

BNC wrote:Todd,
did you tell Duke about the spilt Brake Fluid yet??

I'll add you to the list with Claudia with people who are the funniest person they know.

I always did like Claudia.....

Merkin wrote:hah!

I wonder what that monster starts to spool at?

It doesn't.

HAAAAAAAAAAAAAAAAAAAHAHAHAHAHA!!!!!!


Duke, your wife has a great sense of humor. LMAO

Well Todd has been trying to identify the noise. He replaced the timing chain tensioner to no avail. The head comes off today with hopes of an easily identifiable malfunction. The head will then be disassembled to check everything. The engine comes out next and a trip to his machine shop to examine everything.

We are thinking it is a spun rod bearing or bad wrist pin at this point. Either way, it’s a kick in the nuts after all of the time, money and "expert" assembly I undertook in its build.

I am really getting tired of getting *ucked by dishonest people.

Duke,

Sorry to hear that the diagnosis was not something quick and easy, of course if it had been you would have found it. Hopefully it will be something in the head and will not require the block coming out of the car.

So how short are you now?

Good help is hard to find....

I know how you feel. Ive been lie'd to by mechanics before.

Im kinda in the same boat, Ill find out how well my car runs with a 98k junk yard engine tomorrow on the dyno.

RussC