Dieselboy getting his goal with his heavy SUV!

[Joris]

You could bolt the tire deflector to the mounting brackets, and leave the mounting brackets bolted in place. Then you only have to take of the deflector to pull the bumper or the undertray.

[cRiPpLe_rOoStEr]

Originally Posted by TimV

I know what you mean. But that is an acces hole for mounting the tire spat. Maybe i spend a few hours for it to invent a way to close that also.

You can try a quick-release lock.

[TimV]

Only one week left, and then i go on holiday, but i have good news.

Last fill up: 1230km with 72,6l gives an average of 5,89l/100km.

Sweet

Only downside: red light of empty tank was on the last 15km

[TimV]

Look what I found in the papers of my car.

My car is from 2007, instead of 2008 and it has other fuel consumption numbers then I initionally touht.



Urban: 10,3l/100km, i tought it was 10l/100km


Combined: 8,1l/100km, i tought it was 7,7l/100km


Extra urban: 6,9l/100km, i tought it was 6,6l/100km



This means an instant 7% better milage above EPA

[TimV]

I was looking for water methanol injection, but on this site, nobody seems to have that install on a diesel, so i find nowhere proof if it actiually give a gain in fuel efficency.

There is a lot of info for gaining extra power, but i need a verry small nozle to give a verry low percentage of water/methanol per fuel when i accelerate.
Not a hole lot of water/methanol when you gun the trothle...

Then an other problem, the smallest nozzle i can find is a 50cc nozzle.

I drive 45 minutes to work, that is 40 km. The first 5km is with a cold engine, so no injection.

I P&G, so assume that i inject a bit more then half the time i drive. Make that 30 minutes for 40 km, for easy calculations.

I can drive 1200km on one tank. So injecting 900 minutes.
Smallest nozzle was 50cc, lets say it injects 60cc.

60cc/minute x 900 minutes = 0,06l/minute x 900 minutes = 54 liters.

Thats a hole lot of water, if you compare that i only burn 72 liters of diesel in that time.

So a smaller nozzle is needed or is this a correct volume of water injection?

Is there sombody who can tell me where i can find the info that i aim looking for?

Thanks

[TimV]

So. New numbers for filling up. 1163km with 66,4l = 5,71l/100km. That's a new personal best. I could drive furter. But i had a 80km drive up. And i could drive around 70km... So i just filled up. I started to build a belly pan between front and rear wheels. And rear wheel tire spats. Hoping to gain milage. Also still searching for info on waterinjection.

[TimV]

The small gain in milage was reached by accelerating harder at lower rpms. So i aim faster at the desierd speed. So you are faster at the driving with the low fuel consumption numbers.

Monday will be special. I then modify the air intake. So there are less air succing losses :P

[TimV]

Next fill up: 1190km with 70,4l diesel. Average of 5,92l/100km. The number is higher because 3 times thus week i hit a traffic jam and after the jam i drove 30km at 130km/h instead of 100km/h. And also 10 times a 0 to 100km/h sprints. I did an air intake mod. Later on the day will pics follow.

[cRiPpLe_rOoStEr]

Considering the adverse conditions, it still sounds not bad at all.

[TimV]

Here is the cold air intake. 2 small wide holes. That come together in 1 big tube.
The total hole squire area of the 2 holes is less then the squire area of the big tube. The lintmeter is saying 2.5cm or 1 inch.


The air is succed from between the little space between the hood and the chrome part of the bumper. I think, the hole intake is a bit to restrictive...


Lets change that.

What do i think to win?
Better airflow in the intake, less backpressure beceause the turbo needs to succ les hard for getting the right boost.

A fast calculation. P&G at highwayspeed. Is around 1900rpm to 2400rpm.

Lets use 2000rpm. 1bar overboost. 4 stroke diesel. 2000cc. 4 cilinder. Thats so 2000rpm x 2l x 2 (boost) x 0,5 (4 stroke part) = 4000l of air each minute. = 4 m^3 of air every minute succed trough the intake. That needs to be good designed to work propely.

Hopefully the fuel economy will drop a little bit.

Photo of how it is now will be uploaded this eavening beceause i don't have a photo of it yet.