Enderle fuel pressure and blower oil servicing

Two separate questions.

1. I've been learning a tuneup using Spud's free calculator and reading plugs. Where I want to go next comes up at 211 psi of fuel pressure on the calculator. Will an Enderle 110 make that much pressure? Safely? If it won't, I guess I need to up my nozzles? I've got 10 nozzles that average .044 in the hat/blower. Port nozzles average .046. Looking at going from a .100 main down to maybe an .085. No data to know what kind of pressure its really making.

2. Littlefield 14/71 hhr. I would like to change oil and maybe reseal the end gaskets. Procedures? How much oil does this hold? Something is covering my car with oil every pass. I can't figure out if its the engine or blower. Going to smoke the engine, but if its the blower, I'm not sure how to check it for leaks? Blow gun into the relief port from a regulated air source? How much psi would be safe?

Thanks for helping a newb.

 

I have run the Enderle pumps that high for many years, but I wouldn't go higher.

 

If the blower was covering the car every run, it would run out of oil pretty quickly.

 

first of all you best check you oil in your blower if you run it low or out it will trash your front grears..how much oil? what I always do is take the front cover off drill and tap a 1/4 pipe in the top and in the bottom...the top one is to fill it the bottom is to drain it then I drill the front of it with a 1/8 pipe and the location is inline with the snout bolt that is around the 8:00 position..if confused message me your cell number and I will send you som pics of the ones I have done, also we use the same oil in the blower as the motor uses..Dave p.s. call Lee or Andy at Littlefields for any of your parts,seals bearings ect. and the pipe plugs I use is the blue or black AN plugs

 

The oil coverage isn't substantial it's just a little bit everywhere. The oil level in the blower has dropped maybe 1/4 inch at the sight plug, basically from the top of it to just running out if I pull the plug. No idea how much oil that might be equal to. I think I understand the plug locations, although filling through 1/8 plug seems difficult. Two more dumb questions. Any tricks to pulling the front cover to drain the oil and install pugs? Is there any separation between oil in the front and back, or will pulling the front cover drain everything? Oil looks milky and previous owner said it was gea oil, so would like to chvngr it.

 

Sorry, just realized you said 1/4" for the fill ports. Im not sure about the 1/8 pipe near the 8 oclock snout bolt? Are you just using this to set/check the level? I think this is about where my sight glass is?

 

I'm curious why you guys run that much system pressure with Alcohol ? And with a vane pump ----?

 

fuel pressure

The only reason I wanted to run that much fuel pressure is because I have the cylinders pretty well even and was hoping to add fuel without messing up my balance. It looks like I need to add .004 or maybe .006 to each of my hat/blower nozzles to get the pressure right and be closer to 60-65% fuel up top. The top nozzles range from .042 to .048. Will the fuel distribution stay the same if I just bump each top nozzle by .004?

Why do some guys run more fuel in the ports? Is there ever a reason to do this? I'm running pretty low boost numbers, only 12-15% over right now.

 

I went with Mike's suggestion on my engine 60%-65% up top. I ran the engine this last weekend and after about 30min of testing, with cool down times between fire-ups. I was testing my launch EGT temps and fuel pressure so I was having to bring the engine up to 5000 or so. The blower was still very cool to the touch, at times it was very cool, so the air/fuel charge was probably very cool also.

I would say this is the biggest reason to run more through the blower, and I saw the results first hand.

Corey

 

Blower.... the 1/8 plug is only for when you fill it you take out the 1/8 inch plug to wait till the oil pours out of it to let you know it is full..as of taking the front cover off just unbolt it and take it off leave the drive on this will let all the oil out.Dave

 

Are we talking screw blowers or roots blowers with the percentages being stated ?

 

A little smarter

Thanks for all of the help guys. On a side note, I did smoke the motor last night and find the oil leaks (distributor and front intake rail). I will be making changes this week based on what I've learned, thanks again.

 

No egts here, just my seat mounted accelerometer and a lot of spark plugs. I started out with all plugs having a little bit of brand new on the ring. The last four passes were on the same tuneup and plugs. They are all gray all the way around the ring and a few are just chalking a little. I'm a little confused about what comes first, though, the chalk or the dull gray?

 

Awesome, that's what I was expecting, hoped I was right. I've seen a few hundred nitrous plugs, but this blown alky deal has me a little gun shy.

So if it takes 4 passes to get a hint of chalk, any wild guesses as to a percentage of fuel I can take away? Just a fast bracket car, so don't ever want to be on kill. Thinking a 5 to 10% move should be safe?