How badass is an e30 s50?

[mazur]

Should be fun. You should do a pull against my car to see how much of difference there really is or at auto-x.

Does that mean you're coming to AZ? :)

[e30polak]

Does that mean you're coming to AZ? :)

Yes, he will be attending school there.

[z31maniac]

A well kept M50 with M3 cams, full exhaust, chip, etc. should have no problem making 225rwhp.

Based on some the dyno charts I've looked at, that seems more than optimistic. Like even up 20 hp, on an obd-I m52 with m3 came, chip, exhaust.

[FredK]

Yeah, a 225rwhp M50 would put it on par with an S54B32 for specific output...

[m3_eater]

Not if you are willing to meet me half-way.

To answer your question though, I've seen OBD-1 M52's put out more power than S50's with just an engine management upgrade.

He's right. However, a modded M52 is still down on torque to both S50 and S52. You fix that with forced induction :p

Here is an example dyno graph of a modded (OBD1, S52 cams, 3.5" MAF, stock 21.5 lb-hr injectors) M52 versus a stock/unmodded S52:


The comparison to S50 will be similar, with the S50 torque curve being between the modded M52 and stock S52.

[mazur]

Based on some the dyno charts I've looked at, that seems more than optimistic. Like even up 20 hp, on an obd-I m52 with m3 came, chip, exhaust.

It is optimistic, but certainly not impossible.

Yeah, a 225rwhp M50 would put it on par with an S54B32 for specific output...

How do you figure? On a dynojet most will put down around 275-280 and I know one that put down 290 stock.

[nando]

mmm torque!

it looks from the dyno graph that the S52 is being choked off at high RPM, seeing how the cams, head and intake are the same. a similar upgrade to the S52 should be impressive.

[mazur]

yes, he will be attending school there.

asu?

[FredK]

I was talking displacement-specific output.

290/3.2 = 90.6 hp/L
225/2.5 = 90 hp/L

[z31maniac]

Specific output, ie, HP per liter.

[nando]

I was talking displacement-specific output.

290/3.2 = 90.6 hp/L
225/2.5 = 90 hp/L

wait, you're talking about the M52B25? isn't that the one that's limited to like 170bhp from the factory? because the M52B28 is probably what we're thinking of.

[z31maniac]

mmm torque!

it looks from the dyno graph that the S52 is being choked off at high RPM, seeing how the cams, head and intake are the same. a similar upgrade to the S52 should be impressive.

That's why I can't wait to have the OBD-I S52 in the car.

The S52 is making as much whp stock at 3500 rpms as the M20 does at peak.

[e30s52]

asu?

Nope, UTI. My friend goes to asu though so I am around that area alot. I have been here for the last 8 months. We need to do a pull to see how much faster your car is then mine.

[rThor432]

As for the 300C with the 3.46 gears, I pulled 1 CL from 70-95 or so, then we had to slow down for the traffic ahead. :(

Meh dont worry about it, you would have destroyed him. My E36 M3 pulled away from one from 70-95. The guy wanted to go so badly, but I didnt even care to. I mashed the loud pedal to check out a Porsche 993 that was getting ready to exit. When I lifted he pulled past and shot me "the look". Whatever..

M3 Eater-- Nice graph. I need to dyno mine.

[StreuB1]

If you want scarey fast and hard to control, I'll give you a 2690lb E30 with 750whp at the end of the stick.

That'll put some lead in yer pencil.