.040 or .060, not sure which yet.
Cam is undecided so far. But we will probably not run a stock one.
Cam is undecided so far. But we will probably not run a stock one.
Bonneville Engine:
- Thread starter McRat
- Start date
Pat, what are your thoughts on cooling the cylinders by overfueling? Can running big injectors and alot of fuel help with longevity or does the risk over cylinder washing negate any advantages for a street truck?
You could put the air back on and and be like Jack from Vintage Air. 200 MPH w/the air on in that Stude he had/has.
Good luck w/the build. I hope to make B-Ville in 2009. Friends have gone for yrs. Bout time I made the treck.
Good luck w/the build. I hope to make B-Ville in 2009. Friends have gone for yrs. Bout time I made the treck.
Naw, the rollcage front bar goes behind the dash where the A/C plenum used to be.
just make some custom ducting
The new build
Pat, I think(for what its worth) you will see BIG(BIG,BIG) gains going with a water to air on your truck for LSR events. Not sure it helps much for drag racing but I will bet the farm it will be a giant help for a 90 sec run. Rock on and keep us up to date on what is going on. Jeff
Pat, I think(for what its worth) you will see BIG(BIG,BIG) gains going with a water to air on your truck for LSR events. Not sure it helps much for drag racing but I will bet the farm it will be a giant help for a 90 sec run. Rock on and keep us up to date on what is going on. Jeff
over fueling will cause it to run cooler . the leaner you run a truck the hotter the egts will be.
Ahhh just wuss out and do the super stock tractor trick and run it on alky:rofl: course then you need to add spark ignition too......Lame!:rofl::rofl::rofl:
I thought that was the principle for a gas engine and a diesel was opposite. I would almost put money on it that the leaner a diesel the cooler it runs.
Actually when you reach a point of gross overfueling the cooler your diesel will run, look at mod class tractors and trucks, they run un Godly amounts of fuel to keep things cool, i just think that oil contamination would be the problem in a street truck
It's a little more complicated than that.
Take a stock charger Dmax and fuel it to the max. It will get past 1600 F in the quarter mile usually. Now put a big charger on it without more fuel. EGT's go down even though you are leaner. Drive pressure and outlet air temp could be higher with the big charger, and it will still show less EGT's
I think it's more to do with droplet size. No matter how much you fuel, the air temp will always be way past the vaporization point of fuel, so you might cool the air some, but liquid fuel won't tag the walls or piston, it will just turn to gas. But if the droplets are big, the fuel not only burns slower, it can contact the piston while still liquid, hence cooling it by evaporation.
But my first answer was best: I haven't a clue.
Don't be afraid to go big with your nozzles Pat.... 60% ran great in JNeal's LBZ at high rpm. Plus there's no need to run crazy timing with a large injector. 26-32 degrees is plenty... In our case at least.
Brayden
Brayden
We are going to play more seriously with injectors now. While I don't think I pushed the stock injectors as far as I could, it's time to find out what all the fuss is about. But I kinda wanted to run 9's with stock sticks
Guy Tripp (SoCal Diesel) is getting a set of LBZ injectors opened up and matched for me. This engine will be "true LBZ", with no LLY computers.
Right now, there are some 10% over LLY injectors from Dynomite Diesel in the truck. In LBZ heads.
Here is a link to the Bonneville Engine
http://www.duramaxdiesels.com/forum/showthread.php?t=7906&highlight=casper+carnage&page=2