Yeah I shoot my meth right into the intake tube, right through the blower. Just recently took my blower apart...(pics to come) and it was dirty with oil just like I suspected. The intercooler (made of aluminum) has no signs of corrosion. Just ugly.

Last year I was spraying meth and running 110*, No nitrous, I couldn't for the life of me break 12.2 in the 1320. I will look for my scans, but I started with 19* and made it all the way to 25* in the nasty summer heat. (meth AND 110 octane now!) The truck would jusy not break into the 11's. My times stopped getting better right at that magic number....21*. For me, it's always been my ugly 60's holding me back from boost 11's IMO. (nitrous fixed that **** ).

 

Dropping to 50 at what boost level? That sounds like a problem to me. The radix in an 04 with intank walbro should have no problems with 8lbs of boost IMO. Maybe dropping a little but no way on the 50psi though. That's suspicious. You may be hiding a real issue with the magnavolt.

 

I didn't know it mattered whether a "L" or whatever the radix was in. I thought it'd take the coating off any of em? That's what someone mentioned when a discussion came up on PT not long ago (I asked what were will it damage?)

Why is returnless shitty? Cause it's hard(er) to make changes to the fuel supply? Like, if...I just wait for a reply, rather than make my idea as to why. Maybe I'll learn sumpin'.

 

Dewey, what causes oil inside? How do u get rid of/ prevent/ curb the problem, or can it be?

 

The main drawback of returnless that I am aware of is that it doesn't flow as much fuel through the pump to help cool it.

PCV system dumps oil into the charger/intake. A catch can should help.

 

So, is it best to pop a Walbro in there?
Or does it involve more, like plumbing new lines, too? The $$ braided sucks to cut.

Or, have a Walbro on standby, & monitor the FP w/ a gauge? Cause now it drives up going F/I.

 

The SKINNY on returnless.

 

I haven't had my catch can installed very long.

I clean the bottom some...good enough IMO...

 

It was done to reduce hydrocarbon (hc) emissions. Not having to constantly cycle the fuel (which picks up engine/exhaust heat) helps reduce this. However, it sucks when it comes to making big power. It can and has been done, but it isn't always a walk in the park.

My pressure will drop down around 58ish under accel which is fine. The problem is at the top of 2nd gear (basically a long long pull under heavy load where the fuel demand is very high) the system will drop fuel pressure. Typically to about 50-51psi. I have the Walbro pump from Magnacharger already in the truck. The previous owner changed the pump a few times, the regulator/fuel sender assembly, etc trying to resolve this trucks fuel pressure problem. When I got it, I found that it had a severe volt drop in the pump wiring (pump was getting about 11 volts instead of 14)! Fixed the wiring and replaced the pump and the pressure has been great except under heavy heavy load. At that time, I also watched pressure at the fuel line connection by the tank (on frame) and it was only dropping to 53. So that tells me that the line is some if not all of my restriction. I've inspected the line front to back and it isn't kinked or damaged anywhere.

My plan is install the Magnavolt booster, I've already run 12 gauge wiring to the pump, and to eventually install a y right out of the sender with (2) 6 lines to the front going to the back of each fuel rail. Got the idea from leftcoast32(see link below)---thanks! If that doesn't work, maybe 5 nozzles of meth will...

https://www.performancetrucks.net/fo...400482&page=18

 

I'm hoping that all the methanol I spray will clean some of that crap up.

Many lightning guys split their blowers and clean the heat exchanger. That should help with temps a bit. Hard to get to that point of teardown Dewey?