The big C-tubes on the dyno

[sfdon]

Love the torque.

 

[teahead]

is red small tubes and blue the big C tubes?

 

[sfdon]

No Rob-
Different colors for different pulls

 

[Gransin]

Always interesting to look at dyno sheets, Don.
How much would you say the gain is compared to small tubes? And where in the rpm register?

 

[teahead]

180HP....stock motor? B35?

 

[sfdon]

180 at wheels
B34

 

[shanon]

If I may ask, where's the dyno?
Tried a dyno in December, my car wasn't 'compatible' with their rolling road.

Yes, I was just slighty annoyed.... :-/

 

[stphers]

Anything else done to the engine? or just the bigger tubes ?

 

[stphers]

And look where the torque comes on below 2500 rpm betcha she pulls real nice on the street

 

[afeustel]

Nice. No point in pushing past 5K rpm with your foot!

 

[Bmachine]

That cash register on steroids you hear in the background is the stock price of e21intaketubes.com.

 

[bavbob]

Enjoyed the file name!

 

[sfdon]

For the Dyno Guys out there...
same engine.
M30 b34 euro spec 10:1 compression
schrick 282 cam
same dyno.
Small tubes.

bottom line is exact same horsepower
increase 12 lbs torque
25 lbs increase torque at 2500 rpm
torque curve, hp curve big change with max numbers much lower in rpm.

 

[Bearmw]

What injectors were used?

 

[sfdon]

I don’t remember.

 

[Bearmw]

Fair enough. Nice plot.