My question is can the factory fuel pump pump more than the stock lines can flow? I undestand that many on here add much more power than the stock truck can handle. For us that don't race our trucks, will the factory fuel pump keep up with larger fuel lines and the AN fittings sized 44% larger than stock?
The factory fuel pump can support injectors up to around 190cc's. If you plan on upgrading your injectors, it is strongly recommended that you have a fuel pressure gauge to monitor the fuel pressure. (Keep in mind that not all injectors flow the same. So, two different companies 190’s may actually flow quite a bit different.)
We recommend upgrading to our Stage I for trucks with stock horsepower levels up to 120 hp over stock. Anything over that, we start recommending additional kits.
The factory fuel pump can support injectors up to around 190cc's. If you plan on upgrading your injectors, it is strongly recommended that you have a fuel pressure gauge to monitor the fuel pressure. (Keep in mind that not all injectors flow the same. So, two different companies 190’s may actually flow quite a bit different.)
If you are seeing the pressure drop, then upgrading your fuel pump is recommended.
I had a stock pump and DJ's, and I would run about 60 PSI, on a hard run it would drop down to about 45ish IIRC. It worked nearly a year, but was not idea. Still have DJ's lines on the truck BTW. Fuel is not a problem with the smoke I have.
So you are telling me that even with smaller fittings over factory. You are happy with the performance of the truck an see no reason to go to a larger fitting? A .160" orifice is sufficient with 190cc injectors and a larger fitting would provide no additional performance gain.
So you are telling me that even with smaller fittings over factory. You are happy with the performance of the truck an see no reason to go to a larger fitting? A .160" orifice is sufficient with 190cc injectors and a larger fitting would provide no additional performance gain.
Now. I didn't plan this. But ALL of you thought I opened this up to bash on DJ. It looked to me like trusted was going to come in and use this thread to help them sell kits. But I think you all know me better than to let something like that happen. I didn't even know Tim was going to post in here. Then he came in and flat out proved my point.
So how bout we all just see how far we can go on .172"
You can all still feel free to think I'm a piece of crap.
Are you running factory lines on your race truck?