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View Full Version : Yes you can tune a forced induction BMW without MegaWizz


MarkD
06-05-2007, 09:11 AM
I finished tuning a 93 325iS with 7 psi and a s/c on the weekend. Next season the owner will install an S52 with lower CR and higher boost, I'll tune that one also. Here is that thread:
http://www.maxbimmer.com/forums/showthread.php?t=90645&goto=newpost

Yesterday, I started tuning a 94 Euro M3 turbo which has a kit from DA Motorsports. First thing we did was rip out that TSI fuel computer and return the wiring back to stock.

I've added a few pictures of this car here:
http://rides.webshots.com/album/559322305RkfIvh

It ran really well for it's first time out, but there are a few oil leaks that occurred under boost which have to get sorted out before I continue tuning.

Remember, the best ECU to use on your BMW is the factory one. ;)


MarkD
GoldenOne
06-05-2007, 09:41 AM
cool, sounds cheaper!
misfortune
06-05-2007, 07:38 PM
I got tired of hearing about megawizz about 5 months ago
Jon K
06-05-2007, 08:06 PM
Mark mark mark, c'mon now. I tuned a 8.5 psi blower on an FMU and ported injectors ;)


BTW I will get you '95 VIN... I keep forgetting!
Jon K
06-05-2007, 08:06 PM
cool, sounds cheaper!


Megasquirt-II -- $290 in parts
GoldenOne
06-05-2007, 08:43 PM
Megasquirt-II -- $290 in parts

but if im not mistaken...you still have to put it together lol, i havent honed my soldering skills lately to do what you've done. Plus its still $300 bucks, unlike yourself, im still in college- $300 is a lot of ramen...
Jon K
06-05-2007, 08:44 PM
but if im not mistaken...you still have to put it together lol, i havent honed my soldering skills lately to do what you've done. Plus its still $300 bucks, unlike yourself, im still in college- $300 is a lot of ramen...

No doubt - but you tuning a forced induction car on ramen money?
Booster
06-06-2007, 09:58 AM
Perhaps, but can a chip extrapolate the fuel maps once installed for maximum tune ? No....not to mention if any changes in componet's are made,so must the chip.
For a 7 psi build, a chip may be the way to go. For more than that....the MS-II V3 would be the best (cost wise) choice.For me anyway.
Aren't the custom chips about 3-400 bux ? A fully built MS with spark,fuel,timing and sensors along with harness prebuilt is about 525$.
I'm just glad we have options.Guys like MarkD stepping up have definatly helped many a car run better. Jon K's effort with MS in the E34 have opened up some good things too.;)
Cheers,Vinny