M10 or M20 For First Time DIY Turbo

[CasualDays]

It' seems that most people prefer the M20 for boost, but the M10 has attracted me due to it's lighter overall weight.

What's the more preferable option? I figure I have about $2000 to spend on the intial turbo build and from there I will spend accordingly. I just wanted to see if there was any advantage/disadvantage to starting on either platform.

I do cruise around the forums, so I know enough. But the plethora of knowledge/experience that all of current DIY-ers have acquired is what I seek. So let's hear some

[808BMW]

But the plethora of knowledge/experience that all of current DIY-ers have acquired is what I seek.

If your looking for other people to help, there is alot more interest in the m20.

m10's are good motors, but I've only seen a couple, and AFAIK, only 1 turbo m10'er (Good & Tight) actively posts on e30 forums.

IMO if you don't already have a motor, then I'd go m20.

[CasualDays]

I don't already have a car, so this is more of just me gathering a bit of real life data. I realize that the m20 can actually gain more power through a turbo, though exclusivity is also pretty fun.

I appreciate the reply and I look forward to even more opinions.

[e30bimmerdude]

I would say go with the M20...and if you dont mind a bit of off boost lag..(not much) the m20b27 eta block and "i" block combo can make for a high PSI motor..dude to its low compression 7.9:1...as apposed to i believe 8.5:1 with the m20b25....I will be going with the eta/I hybrid as i already have the eta block and I head...but that is just me....overall the m20 is a solid motor and i would boost that any day over the m10.... good luck and enjoy ur BMW