View Single Post
Old 01-18-2016, 12:41 PM   #90 (permalink)
oil pan 4
Corporate imperialist
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,181

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 270
Thanked 3,525 Times in 2,799 Posts
Quote:
Originally Posted by Daox View Post
I'd imagine we want to keep the angle at 15 degrees or less.
With converging and diverging nozzles I believe 7 degrees is ideal.
There are companies that sell 7 degree reducers for intake and exhaust piping, they are kind of expensive.

I picked up a 304 stainless steel 3 to 4 inch reducer pipe used in a water pumping system to be part of my diesel suburbans new exhaust. It has about a 12 degree slope. Not perfect but since it was free I cant argue. (had a welding defect and could not be used in the high pressure RO system it was intended for)
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote