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vwabbitman
25-11-2004, 05:27 AM
ok what exactly does a cetane booster do. and what will happen if i have the 'richness' setting to high(long term and short term)
Darth Garry
25-11-2004, 06:28 AM
If you have the richness setting too high you'll get lower gas mileage, make more pollution, and probably carbon up your valves a lot faster along with your exhaust.

Short term, it'll make your diesel go faster a bit.

Cetane I guess increases the power of the diesel fuel so that you get a little more power out of it. I use a cetane enhancer called "Stanadyne" or something like that, it also has an anti-gel additive in it for winter driving. I guess you could equate it to octane in a gas car.

Garry
vwenginebuilder
25-11-2004, 10:39 AM
How and where do you adjust the richness setting?
Darth Garry
25-11-2004, 08:21 PM
There is a screw on your injection pump. I don't have a photo available, but you need to loosen up a nut to turn the screw, or something like that. However, it is STRONGLY recommended that you don't mess with it. The performance gains will be moderate to negligable, and your mileage will go down considerably, and you'll pollute more.

Garry
vwabbitman
02-12-2004, 01:27 AM
yeah im trying to figure out how many turns from being screwed all of the way in is stock so i can put it back to stock and see what the cetane boster does then. does any body know how many turns it is to take the richness back to stock.
DieselsRcool
02-12-2004, 09:54 PM
It's not that simple. Each pump is set on a mult$K machine depending on fuel flow.

Just turn it out 1/8 turn at a time, drive it for a while, until you notice a drop in power and smoke. That will be pretty close to stock

quote:Originally posted by vwabbitman

yeah im trying to figure out how many turns from being screwed all of the way in is stock so i can put it back to stock and see what the cetane boster does then. does any body know how many turns it is to take the richness back to stock.
Darth Garry
04-12-2004, 08:36 PM
The calibration machine at my local Diesel shop cost $850,000 USD.

Garry
mortskeg
07-12-2004, 01:27 PM
quote:Originally posted by Darth Garry

The calibration machine at my local Diesel shop cost $850,000 USD. Dang!

http://www.haro-online.com/stuff/joedirt2.jpg

Guess I'll have to take that off the x-mas list.