BMW E30 M3 - 4 cylinders - 365 hp

sgw_88FoxGT

Member

May 18, 2008

43

0

6

Jul 18, 2008

#1

• Jul 18, 2008

• #1

Yeah, how they hell did they do that? Naturally aspirated too.

 

timeless2

Vi Veri Veni Versum Vicus Vici

Admin Dude

Nov 29, 1999

1,366

202

154

the Shadow Gallery

Jul 18, 2008

#2

• Jul 18, 2008

• #2

Compression ratio, high-octane fuel, timing, and a precisely aggressive A/F mix.

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

223

gainesville

Jul 18, 2008

#3

• Jul 18, 2008

• #3

they also get like 10mpg. purely a weekend toy unless you can wipe your ass with 100 dollar bills.

 

S

Sicarius428

Active Member

Jan 6, 2004

2,085

5

49

Jul 18, 2008

#4

• Jul 18, 2008

• #4

Definately not stock. They were less than 200hp if I remember correctly....
Kevin

 

sgw_88FoxGT

Member

May 18, 2008

43

0

6

Jul 18, 2008

#5

• Jul 18, 2008

• #5

Right, supposedly the race cars, not stock publicly sold cars, made the 365hp figures out of a 2.5L

 

Notchbck93

New Member

Dec 9, 2003

422

1

0

IL

Jul 18, 2008

#6

• Jul 18, 2008

• #6

What are you basing your information off of?

 

NIKwoaC

中國製造

15 Year Member

Oct 31, 2006

5,525

943

214

Chengdu Province

Jul 18, 2008

#7

• Jul 18, 2008

• #7

They probably rev to damn near 10K rpm to make those kind of numbers.

 

Notchbck93

New Member

Dec 9, 2003

422

1

0

IL

Jul 18, 2008

#8

• Jul 18, 2008

• #8

High rpms are good for hp numbers given that everything else supports it. Without electronic cam phasing though, adj runners, fuel injection, any high-revving car will be a pig below a realistic 3500 as it wasn't designed to operate in that low-range.

I know of an SN95 with a 306 that runs 9's on nuts, but I won't dare say he shifts below 7700 Rpms and has invested close to 15000 with parts and numberous dyno runs, part swaps and so-forth. 15G just in the mill.

 

sgw_88FoxGT

Member

May 18, 2008

43

0

6

Jul 18, 2008

#9

• Jul 18, 2008

• #9

I found an E30 M3 enthusiast website (e30m3performance.com that I just tried to access but is down) that sites the 365 hp. Wikipedia and a few other sites I came across cited the race car as capable of 350hp. I mean, they could be wrong or maybe that's optimal or maximum amount of power these cars ever made. A friend of mine who went to UTI had a teacher who had one of them that made 350hp N/A but his must have been a publicly sold car that he tuned up. Even if those numbers are inflated, BMW has been known to squeeze ridiculous amounts of power out of small engines.

 

NIKwoaC

中國製造

15 Year Member

Oct 31, 2006

5,525

943

214

Chengdu Province

Jul 18, 2008

#10

• Jul 18, 2008

• #10

Notchbck93 said:

High rpms are good for hp numbers given that everything else supports it. Without electronic cam phasing though, adj runners, fuel injection, any high-revving car will be a pig below a realistic 3500 as it wasn't designed to operate in that low-range.

I know of an SN95 with a 306 that runs 9's on nuts, but I won't dare say he shifts below 7700 Rpms and has invested close to 15000 with parts and numberous dyno runs, part swaps and so-forth. 15G just in the mill.

Click to expand...

Because horsepower is a function of torque and rotational speed, I'm guessing these cars don't have a lot of torque but make up for it by screaming high RPM, that's why I said that. I'm assuming they have the components to support running at that RPM, including gearing to make it feasible on the street.

Hell, Indy cars make twice that much horsepower with just a liter more (3.5L for those not savvy) , but they rev limit at 10300 RPM. Any size engine can make crazy HP numbers providing you can flow enough air and fuel at the speed you need to spin the crank.

 

67coupe

Founding Member

Apr 5, 2002

658

402

93

Huntsville, AL

Jul 18, 2008

#11

• Jul 18, 2008

• #11

NikwoaC said:

Because horsepower is a function of torque and rotational speed, I'm guessing these cars don't have a lot of torque but make up for it by screaming high RPM, that's why I said that. I'm assuming they have the components to support running at that RPM, including gearing to make it feasible on the street.

Hell, Indy cars make twice that much horsepower with just a liter more (3.5L for those not savvy) , but they rev limit at 10300 RPM. Any size engine can make crazy HP numbers providing you can flow enough air and fuel at the speed you need to spin the crank.

Click to expand...

Exactly, RPM's is how its done.

HP = (Torque X RPM)/5250

5250 is only a constant to make the units common.

So, lets assume the Beamer makes the 365 hp at 8000 rpms. Thats 240 ft-lbs of TQ at 8000 rpms. Sounds about right.

Another good example is F1. 2.6L NA V8 with ~750 HP at 18,000 rpms. That's right naturally aspirated, 2.6 Liters, and 18,000 rpms. That acutally only 218 ft-lbs, but at 18,000 rpm. Pretty cool stuff.

 

theconductor

15 Year Member

Aug 9, 2007

337

96

74

Roseville, CA

Jul 19, 2008

#12

• Jul 19, 2008

• #12

Didn't toyota run a 920 hp turbo 4 in their gtp cars in the late 80's and early 90's? That is ridiculous. I don't care if it is a turbo. The f-1 engines are usually either v-10's or 12's FWIW...

-Kyle

 

Notchbck93

New Member

Dec 9, 2003

422

1

0

IL

Jul 19, 2008

#13

• Jul 19, 2008

• #13

Technology has come along way since our beloved 2V's...


I mean really, bone stock, my Spec V cyl head flowed more than a set of Edelbrock Peformer heads I have on my blow Stang.

I won't even get into how bad the E7's were with the ugly thermactor hump.