Story of my m30 swap - 1/4 mile times 6/28/2005

[uflnuceng]

Quite impressive! Good to hear you had an enjoyable day.... while i was stuck at work :twisted:

-Chris :D

hehe... I was sick... cough cough

[Xmarksthespot21]

Hey uflnuceng,

you have put together a really nice site; i think it's a lot better than e30.de.
However, there is an error on your site.

Typical Stock hp
168 211
189
240
Conforti upgrade chip hp
184
254
211
259

Those stock hps are max horsepower at x rpm. The conforti gains are peak gains but not at the same rpm; therefore you cannot just add them to the stock hps. For example, the m30 makes 211hp@5700rpm; the peak gain from conforti is 43hp@6250rpm. Hope this helps.

Thanks,
Charles

[uflnuceng]

good catch.... some sites break down max gain and max hp... guess conforti didn't... i'll see what i can find or try and get a dyno run.

i'll fix my site asap

[C ///M]

I'd also like to say that you're site is really nice. Must have taken a lot of time. :up:

However I remember seeing a few errors, or stuff I wasn't sure about, but I didn't read it all. You're already fixing the chip ratings, but I think your engine weights are misleading viewers. The M30 weighs more than the M50/2 and S50/2 motors, but less than the Euro S50 motors.

For instance, the US e36 M3 engines weigh the same as the listing on your site for the M50, at 299 lbs, not the 333 you list for the s50. The 333 weight was for Euro motors only with the 286hp 3.0liter and the 321hp 3.2.

[uflnuceng]

Another good catch... I'll get that incorporated as well.

BTW... I love your car... expect a sterling silver 4 door to be pimping it like you soon. Just gotta strip the car down to take it to the body shop.

[Xmarksthespot21]

I'd also like to say that you're site is really nice. Must have taken a lot of time. :up:

However I remember seeing a few errors, or stuff I wasn't sure about, but I didn't read it all. You're already fixing the chip ratings, but I think your engine weights are misleading viewers. The M30 weighs more than the M50/2 and S50/2 motors, but less than the Euro S50 motors.

For instance, the US e36 M3 engines weigh the same as the listing on your site for the M50, at 299 lbs, not the 333 you list for the s50. The 333 weight was for Euro motors only with the 286hp 3.0liter and the 321hp 3.2.

Really? Are you sure about this? Not saying your wrong, but I just find it hard to believe that the US S50 which is 3.0L weighs the same as the 2.5L M50 unless you meant that the m50 weighs less also.

[C ///M]

Really? Are you sure about this? Not saying your wrong, but I just find it hard to believe that the US S50 which is 3.0L weighs the same as the 2.5L M50 unless you meant that the m50 weighs less also.

Yes, I'm sure. The M50 and S50 weigh the same. They're the same engine. Think about the factors that give an engine its displacement. The M50 was bored out 2mm, while a new crank increased the stroke to create the S50. If anything, the S50 actually will weigh LESS (a few ounces, neglible) than the M50. Only the Euro S50 weighs 333lb. It isn't hard to believe at all, just have to think what the US S50 engines really are.

EDIT:
M50/M50TU - Straight 6 DOHC 24V/Straight 6 DOHC 24V with Single VANOS. 1989-1998. 136kg 299lbs
Used in E36 320i/325i, E34/39 520i/525i, Variation of this was used in the Early US E36 M3
2.0 (150bhp), 2.5 (192bhp), 3.0 (240bhp) Sometimes referred to as S50US. Engine shares more common parts with M50 than Euro S50, but is a motorsport engine.

M52/M52TU - Straight 6 DOHC 24V with Single VANOS/Straight 6 DOHC 24V with Double VANOS. 1996-2000. Iron Block in US models, Alloy Block in Europe, US Z3s and all E46s. 118kg 260lbs (alloy) 140kg 308lbs
Used in E39 520i/523i/528i, E36 323i/328i, E46 323i/328i, E38 728i, Variation of this was used in late US E36 M3.
2.0 (150bhp), 2.5 (170bhp), 2.8 (193bhp), 3.2 (240bhp) Sometimes referred to as S52US. Engine shares more common parts with M52 than Euro S52, but is a motorsport engine.

S50 - Straight 6 DOHC 24V Solid Lifter Valvetrain with Single VANOS and Individual Throttle Bodies. (Dual Vanos on 3.2Ls) 1992-2000. 152kg 333lbs
Used in non-US E36 M3 (3.0L) and E36 M3 Evo (3.2L) and non-US Z3 M-coupe/roadster (all 3.2L)
3.0 (286bhp), 3.2L (321bhp)

[C ///M]

Another good catch... I'll get that incorporated as well.

BTW... I love your car... expect a sterling silver 4 door to be pimping it like you soon. Just gotta strip the car down to take it to the body shop.

Go 4 Doors!! (except your color is going to be a little nicer... 8)

[ptownTSI]

wow i just read this thread and i cant believe the amazing difference in the m30 stock chip to m30 chipped.

[bmw335ist]

Oh, and the eta DS proabbly only works if you are running a 260/5 tranny right ely? The 265 is about 3 inches longer...Don't think the splines on the DS can accomidate that much added length.

Ya my freind built his with the 260/5 the 265 was longer or shorter.

[bmw335ist]

Sorry I should have read the hole post befor posting.
How do you like the car 14.3 1/4 mile that is not bad trust me you think that sucks, try 335 rwtq @ 10 psi and watch how un controlable the car is.
Don't get me wrong it is fun and I will do it agean. any way Nice it feels good driveing what you have been working on.

[Jonsku]

This thing still alive? Have you tried mounting the throttlebodies yet? I've M30 in my E30 cabrio + megasquirt'n'spark and found M88 throttlebodies which are going in next winter i think :-/

[Jonsku]

Yet any progress with TB:s? I tried fitting them and upper water hose / thermostat housing is on the way, as is brakebooster.. putting them straight up could help.

[Funkmasta]

bumping an old thread, that I randomly came across...

[bimmer_adam69]

wow great thread, anyone try a mark. d chip?? i hear it's suppost to be even better than the conforti, everyones telling me to go mark d with the m30 but no posted hp/tq stats kinda bug me and conforti has been sworn up and down by alot of people...

need stats on mark d!!!!!!