How many horses did you get out of your modified M10...

[Bayard]

and what did you have to do to get it?...

And, (most important) is your hotrod reliable?

Thanks in advance for sharing

[AceAndrew]

This thread is a good start for you...

 

https://www.bmw2002faq.com/forums/topic/152828-the-dyno-data-and-motor-build-thread/?page=4

[kbmb02]

On this reliable, performance-oriented street* engine we saw 127 HP at the wheels on 91 octane.

 

     *I’m never-quite sure what a ‘hot-rod’ is...?

 

What we did: Selected a custom camshaft for usage/RPM-range desired, built custom 9.6:1 pistons to match, added light-ish valve springs, a bit of port clean-up on head and manifold, then topped with a Weber 38/38 carb. -KB

 

 

[Schnellvintage]

+1 for Ken

I used 10:1 cr, 284 cam, match port. However, I used Megasquirt EFI, super reliable and 30mph on hwy. no fiddling with jet set up, cold starts or altitude changes. Of course 91 octane.

Matt

 

 

@ the rear wheels.....

Sent from my iPhone using Tapatalk

 

[TobyB]

4.  But one was a Pinto, so I'm not sure if she counted.  

 

rrrrrr

 

 

[ray_]

1 hour ago, TobyB said:

4.  But one was a Pinto, so I'm not sure if she counted.  

 

rrrrrr

 

 

 

 

I thought pintos were one horse power.

 

[TobyB]

Well, yes, one Percheron, one Berkshire, one mixed- breed draught horse with a lot of Belgian, and one Pinto.

 

I never thought the Pinto pulled as well, but for a horse to work cattle, there was no better.

 

This was a while ago.

 

When the West was still Wild...

 

t

 

[Vicleonardo1]

In high school, my buddy drove an unexploded Ford Pinto. I think yes, it did probably have 1 HP. 

[evil02]

Anyone know what an all out race M10 would make for hp? 175+? at the flywheel or rwhp?

[kbmb02]

16 minutes ago, evil02 said:

Anyone know what an all out race M10 would make for hp? 175+? at the flywheel or rwhp?

 

What induction? Running at what RPM range? How long would you want it to last? .... -KB

[evil02]

7 minutes ago, kbmb02 said:

 

What induction? Running at what RPM range? How long would you want it to last? .... -KB

 

All out, max porting, big cams, big bore, whatever induction, frequent rebuilds, etc. Just wondering what the max(or close to) hp is that a top engine builder can get out of a m10. Clearly estimates or a guess is fine.

[Vicleonardo1]

33 minutes ago, evil02 said:

 

All out, max porting, big cams, big bore, whatever induction, frequent rebuilds, etc. Just wondering what the max(or close to) hp is that a top engine builder can get out of a m10. Clearly estimates or a guess is fine.

 

Formula one racing version of the M10 (called the M12)  about 1100 hp. There were also some claims of a 1400 hp output, but to measure accurately above 1000 hp at the time was difficult. (see Wiki)

 

https://en.wikipedia.org/wiki/BMW_M12

 

From Wikipedia:

1984 and 1985 were lean years for the BMW engines in Formula One. Piquet scored the Brabham team's last three wins over the two seasons, winning the 1984 Canadian and Detroit races, and the 1985 French Grand Prix, though the engine was generally regarded as the most powerful in F1 at the time, producing a maximum output of approximately 1,100 hp (820 kW) in qualifying trim by 1985. While the engine's potential was never in question with Piquet taking nine pole positions in 1984, however the engine's mechanical reliability and durability under full work load suffered severely with regular engine blow ups and turbo failures becoming a common feature. Also, with FISA imposing a maximum fuel limit of 220 litres per race (re-fuelling was allowed in 1982 and 1983), the 4 cylinder BMW suffered from high fuel consumption which often led to drivers running out of fuel.

Edited December 20, 2018 by Vicleonardo1

[evil02]

14 minutes ago, Vicleonardo1 said:

 

Formula one racing version of the M10 (called the M12)  about 1100 hp. There were also some claims of a 1400 hp output, but to measure accurately above 1000 hp at the time was difficult. (see Wiki)

 

 

 I think we all know that famous motor but, that is also turbo charged and barely a m10. You can never compare flow of a 16v head to the flow of a 8v head.

 

 I'm talking about, What is an estimated high HP number for a naturally aspirated m10 motor that racers are currently using in their race cars. 150, 175, 200??

[Flunder]

220 race 2 liter with 8V head 

[evil02]

1 minute ago, Flunder said:

220 race 2 liter with 8V head 

 That is a nice number!  thanks for sharing. You think that is common and reliable number among other race motors?