what will a stock 535i bmw ecu suport in terms of boost&

[TurboSnail]

but yea what will the stock ecu support in terms of hp and boost pressure?

[TurboSnail]

or will i have to change it . i saw a guy at the track with MS looks like a grood program but i dont want to have to do that unless i have too

[russc]

The stock 059 ECU is fully programmable. See my website.
http://home.comcast.net/~russelc/dme/dmetune.htm

With that info and inj size constant changes, the 059 can run 100lb injs and support 750hp with timing changes. If your looking for tunabilty on the cheap, thats as cheap as it gets short of MS.

RussC

[Tjn182]

I think Mr. Dehate has figured about 12psi is about all you can do without a chip or something else... which... could get you around the ballpark of 300hp-ish @ the crank

[Bill in MN]

I am currently running a TCD chip and 15lb. boost. Conservative guess for power output is somewhere in the mid 300's. Not bad for a stock ECU.

[russc]

I am currently running a TCD chip and 15lb. boost. Conservative guess for power output is somewhere in the mid 300's. Not bad for a stock ECU.

Right, Todds dyno should be representative of your power, to a point. Todds got better programming with the MS. Id say in your setup, if you don't custom tune the 059 more, then ~325whp on a M30b34.

RussC

[T_C_D]

I ran 20psi on my motor with Motronic prior to going with MS. The result at 15psi with MS far exceeds that of 20psi and the Motronic. It's all in the ability to tune! I would rather have good controls than an intercooler!

[Bill in MN]

My motor's been tweaked. 8:1 comp., MLS. reworked b35 head, port matched yada x3. I think Todd's is stock but I'm not sure on that one.

All that fun stuff may or may not make much difference but I'd guess the power output's got to be pretty close to Todds. It is noticeable, however, that at 15lb it's at the limit of the fuel pump and injectors. It will run wide WOT all day with the 12.5 spring in it with no complaint. It complains at 15 and I need to get out of it.

[russc]

My motor's been tweaked. 8:1 comp., MLS. reworked b35 head, port matched yada x3. I think Todd's is stock but I'm not sure on that one.

All that fun stuff may or may not make much difference but I'd guess the power output's got to be pretty close to Todds. It is noticeable, however, that at 15lb it's at the limit of the fuel pump and injectors. It will run wide WOT all day with the 12.5 spring in it with no complaint. It complains at 15 and I need to get out of it.

Ah,
I forgot about your mods, I was speaking to a more stock M30b34. With all those mods you can really push some more power. What size inj's are you runing?

RussC

[TurboSnail]

so 12 psi max on stock ecu stock timing and stock injectors. is that what i am to understand? im just a lil confused is all . and how much is a chip . ive seen them for cheap and for lots of $$$$
so how much is a desent one. i only have $5k to work with so i want to spend it well. and thanks to all the replies even if they arnt all for me i like to learn all i can.

[Jeremy]

i only have $5k to work with so i want to spend it well.

$5k will buy you a complete TCDs1 kit including exhaust and chip. You'll be able to run 12psi of boost safely on that, figure 280 whp or so. Anything else would be penny wise and pound foolish IMO.

Jeremy

[Bill in MN]

Crap Russ, you would have to ask all kinds of technical questions on a Monday!!!

I've 36lb injectors. I'm waiting to install the big boys until I get the bigger fuel pump installed and figure out what to do about fuel/engine mgmt. Once things slow down this Fall I'll be addressing these issues.

Snail......I guess you can consider this an unsolicited sales pitch for TCD. If you were to go with one of their systems you would have everything you'de need to go down the road, chip, bigger injectors and all. I'm sure you could peacemeal a system together for less but the reality is the R and D has been done, the customer service is great and while I'm not sure where the prices are at right now, you would probably be up and running with change in your pocket.

Keep in mind that while 12 psi might sound like a small amount of boost in comparison to what others are running, it will nontheless provide you with a car that can cause you to change your underwear, all with the stock ECU and dead reliable. You will then have a solid platform that will allow you to take it to higher levels in the future.

[TurboSnail]

Crap Russ, you would have to ask all kinds of technical questions on a Monday!!!

I've 36lb injectors. I'm waiting to install the big boys until I get the bigger fuel pump installed and figure out what to do about fuel/engine mgmt. Once things slow down this Fall I'll be addressing these issues.

Snail......I guess you can consider this an unsolicited sales pitch for TCD. If you were to go with one of their systems you would have everything you'de need to go down the road, chip, bigger injectors and all. I'm sure you could peacemeal a system together for less but the reality is the R and D has been done, the customer service is great and while I'm not sure where the prices are at right now, you would probably be up and running with change in your pocket.

well i am hearing what u are saying and i wouldnt mind having a tcd kit . i realy like to build things like this my self. so thats why i have asked this Question. but i wll give them a thought . mabey if i just buy there chip and injectors i acould still fabb up the rest my self. hows that sound. i realy want to put my own
design on my car. but question off topic have any of you guys messed with th v12 m-50 at all?
Keep in mind that while 12 psi might sound like a small amount of boost in comparison to what others are running, it will nontheless provide you with a car that can cause you to change your underwear, all with the stock ECU and dead reliable. You will then have a solid platform that will allow you to take it to higher levels in the future.

[Shawn D.]

Damn, TurboSnail, smashing your reply into the middle of something you quoted makes it darned hard to read!

[Brad D.]

but question off topic have any of you guys messed with th v12 m-50 at all?

There is no such thing as a v12 M50. A v12 is either an m70 or an m72.

[TurboSnail]

sorry i got the #'s mixed up . im trying to do tomany things at once. but you get the point of my question. has any on messed with the v-12 or is that engine as much of a pain to moddify as it is to change the spark pluggs. i have the whole front half of one lol he he he . dont ask lol


m-70 or m-72 . right?

[russc]

Dinan has done twin turbo kits for the V12s. Theve also grafted those FI computers onto other turbo cars.

Theres the normal hot rodding stuff like stoking, flow work etc..Lots of tuners have done that stuff.

RussC

[TurboSnail]

so what all did you have to do with ur motronic to get 20psi to run on ur car? and is that the same as what i should have in my car. this is my first time messing with a 535. ive done hand fulls of saabs and vw jettas an golfs and a god forsaken honda !

I ran 20psi on my motor with Motronic prior to going with MS. The result at 15psi with MS far exceeds that of 20psi and the Motronic. It's all in the ability to tune! I would rather have good controls than an intercooler!

[russc]

You can go to TCDs website and see the equipment he has runing in any of his cars. Its in his profile.

RussC

[TurboSnail]

thanks