335i performance stats...

[euroshark]

Sort of depends on the year of your car too. The early cars from '84 to '86 are listed at around 2400lbs for a 318i and 2650lbs for an eta (not scientific, just rounded those numbers from memory). So if you take a 2650lb eta, remove 80lbs of AC stuff, and add 57lbs more motor you wind up with a car that weighs about the same as stock, assuming that a Getrag 265 weighs a bit more than a 260.

[TurboFox93]

What kind of compression was on the B6S? With megasquirt is it feasible to get a NA M30b35 to that spec?

[Jb325is]

What kind of compression was on the B6S? With megasquirt is it feasible to get a NA M30b35 to that spec?

Not with just megasquirt. My motor has m90 pistons, shaved head, 290 cam, etc it should make ~215-225 whp with ms.

[TurboFox93]

How does it rev? Is the B35 a low rpm motor; similar to the eta engine? I think I would like the idea of a motor that revs freely. I am not having much luck sourcing an M90.

[Jb325is]

How does it rev? Is the B35 a low rpm motor; similar to the eta engine? I think I would like the idea of a motor that revs freely. I am not having much luck sourcing an M90.

Pretty nicely, I have an e12 flywheel too. With the 290 it definitely feels much much stronger @ 5k+ RPMS. Definitely not a low RPM motor, no

[msinger]

The d'sylva chip is awesome, car hauls, of course it hauled with just the m30 but the chip definitely makes a solidly noticeable difference.

[LowR3V'in]

The b35 is slightly less revvy then the b25.
Slightly.

The b34 is the one that's kinda a low revver.

[BDK]

How does it rev? Is the B35 a low rpm motor; similar to the eta engine? I think I would like the idea of a motor that revs freely. I am not having much luck sourcing an M90.

that's cuz your not looking in the right place, I have one...
might sell it or can get you with the person with another...

[RickSloan]

the b34 is def a low rev, grunty motor, but thats what makes it fun... 2nd gear drifts FTW

[TurboFox93]

that's cuz your not looking in the right place, I have one...
might sell it or can get you with the person with another...

Interested. Please let me know. Thanks!

[Jean]

Like ETA? lol, no. Mine sees 6k+ almost daily and it gets there quick with 533 flywheel.

[george graves]

I have a e28 shaved fly, and I wish I had gone 533/M5. But even then it get up there just fine.

ETA's just start to choke after what? 3.5k? They just fall flat on their face.

An m30 is nothing like that. It will happily spin up and make a wonderful, classic, inline-six-orgasms while doing so.

[Japandrew73]

Like ETA? lol, no. Mine sees 6k+ almost daily and it gets there quick with 533 flywheel.

How is your idle with the 533i flywheel? I hear if you go too light you lose your smooth idle but a lighter flywheel is a nice thing to have.

[TurboFox93]

I found an 86 735i. How do I tell if it has the b34 or b35 engine in it? Junk yard wants 450 for it. What do you all think?

[Jb325is]

I found an 86 735i. How do I tell if it has the b34 or b35 engine in it? Junk yard wants 450 for it. What do you all think?

It's a b34.. The 7 series got the b35 in '88.