View Single Post
Old 10-02-2012, 06:46 PM   #16 (permalink)
oil pan 4
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 8,666

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: 210
Thanked 2,862 Times in 2,238 Posts
MPGs with propane?
Yeah it works, propane just replaces diesel fuel.
After testing on and off for about a year I figured propane on a suburban was too much of a hassle.
The plan was to experement with propane then test water and water methanol injection.
Well I tested the propane, didnt much care for it and never got around to testing the water and water/methanol till 2012.

Wished I would have followed through with water and water/methanol testing or tested had tested it first.

I like the water based system better than the flameable gas based system.

The problem with high compression diesels and propane is if you add too much propane you get detonation, which will ruin the engine pretty quick.
I injected water/methanol (80proof) l mixes with enough methanol at high enough volume on several runs to make around 150 horsepower (had there been enough air to burn it) with no knocking.
The suburban took off like a bat out of hell and left a good cloud of smoke.
__________________
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
The Following 2 Users Say Thank You to oil pan 4 For This Useful Post:
Isaac Zackary (09-20-2016), TDFbound (11-22-2018)