24v p pump project under way! Runs but questions
 

1st question is what do i do with the computer on the side of the motor? It has to be hooked up so the tach will work, it is a 2001 truck. I wish i could get it out of the way, but i want my tach to work. Is there a way to hook the tach sensor directly to the tach in the dash without it going through that computer? Also i used the stock lift pump and fuel filter, it seems to work fine. But i havent driven the truck yet, still have to finish putting it together. Throttle linkage is the next big issue. I dont have one off the p pump it was gone when i bought the pump. I just have to find one. I think i have one somewhere, but i cant find it. Its going together fairly smoothly for the most part! Ill keep updates

The ECM also controls the charging and the A/C compressor clutch due to the tach signal. Mine is just laying on the starter. Been like that for 3 years, and has never been an issue. I put a good 20k km on it like that until I bought my 4x4, since then it has become a weekend runner. Some guys will make a bracket so it bolts to the block further back. If you run a 12v breather, it will be in the way, though.

Fuel filter is fine, but you will want to upgrade to a higher pressure pump. Stock VP lift pump is dodgy at best. You want something thats min pressure of around 25 psi. I drove for a while at 18, and it wasn't bad. I don't know if 10 psi would be all that good though.

Ok yesterday we got the oil line for the injection pump hooked up and everything back together, it runs good, but i hate the governor setup on the 94 p pumps. We are going to put a 3200 gov spring on it and i also had to rig some stuff up for the throttle linkage, i am going to buy the right stuff for it today and get it here asap! I am getting 99 mpg all the time on the overhead readout!!! Its great! Overall has more hp than it did with the vp44 and a 70 hp chip. Very happy with the results so far, and my computer is laying on the aterter as well! I guess thats where it goes! Ill post milege updates later after a few tanks!

Why are you going from the 4k to 3k kit? I hope you didn't order a new GSK, because a 3k is a 4k kit, minus the little spring on each flyweight.

no, the 4k gsk is on a different truck than the one in my sig. this truck is my brothers truck actually, its a 01 ext cab dually. he got the truck for 7g and the vp pump went out a week later. we have both heard horrer stories of being dead in the water with a vp and this his welding rig truck. he doesn't want to be replacing vp every six months and the p pump pumps more power and is much more reliable than a vp any day! the 4kgsk is on my ford-cummins project. and he iis off today from work so we are going to yank the 4k out of my ford and put it in his truck today and he is going to order me another 4k gsk to put back into my truck.

What injector did you use?

this is my brothers truck but we used stock injectors, i heard they they are very high pressure and too high for the p pump so we are going to get some high flow nozzles and have the pressures set to 4,000 psi i think that like 275 bar. stock pressure is 260 bar on p pump, but i like a little more

VP pressures are fine. I've run a couple sets at that pressure, no issues.

the 24v sounds funny with a p pump making all that racket under there!im gunna get the injectors popped anyways for good measure! and i think i could get more fuel through the same injector with less pressure (:

Racket? Mine was quieter, although that HRVP was a loud POS.

Oh, okay. Cool, thanks. I thought there was a big buck set of conversion injectors we had to buy for a P Pump swap.

Sleeves in the injector body to fit 12v injector springs?

I dont think they need a sleeve to go around a smaller spring, i just think they need less shimming under the stock springs to make less pressures, a stock shim should be somewhere aroundn100 thousandths, at least thats where they are at on 12v injectors.. And just adding or subtracting a couple thousandths will make a large difference. I added 7 thousandths shims to my stock 12v injectors and raised the pressure from 260 bar to 275 bar. So i think i could put smaller shims in the 24v injectors and get the pressures back down from 305 bar to 275 bar. This is all in theory right now.. I may get an unpleasant surprise when i go tearing my injectors apart!

Gotcha'. Thanks again