Evo X upgrades - Page 89

**mlomker** · 05-03-2011

Quote:

Originally Posted by Murlo26

And the fueling system grows, lol.

Bah, I haven't decided how I'll go yet. I'm looking around at options. Weldon got back to me and said they have many people road-racing with their 2015 pump...it was more or less designed for that since it's continuous duty and supposedly has no flow drop off all the way to 160psi, which is redonk.

**mlomker** · 05-03-2011

Another thought is that the problem is actually related to fuel pickup and that Full Blown hanger. If the surge tank were to empty then it'd suffer a fuel pressure problem that'd also solve itself once the tank refilled. The symptoms don't exactly make sense for that but I will unload the hanger if a new pump setup doesn't square things away.

**Murlo26** · 05-03-2011

And here we are again, both of us back to where we were the same time last year

RR X's are cursed.

**mlomker** · 05-03-2011

Quote:

Originally Posted by Murlo26

And here we are again, both of us back to where we were the same time last year

I got a few laps in. A $500 visit for a dozen laps isn't a great value but it's a good excuse for wings & beer with my brother.

I've been talking to Weldon today and they are very helpful. I think I'll order that up. I will also set it up so I can easily re-enable the second in-tank pump the next time that I'm at the track.

I'll keep plugging away at it. It's too much fun not to.

**Kracka** · 05-03-2011

How about selling your FB hangar for a stock housing + cash, then going with a slightly simpler setup? DW300 feeding your surgetank which then feeds the injectors with the Jays?

**mlomker** · 05-03-2011

Quote:

Originally Posted by Kracka

DW300 feeding your surgetank which then feeds the injectors with the Jays?

The stock pump should fill the surge tank just fine. I want to keep the FB hanger if it isn't the issue because I like AN fittings and it'd require quite a bit of rewiring to go back to stock. I've never been comfortable with the BAP...I'd rather have a pump that actually meets the demand.

I'm not aware of anyone that has done a DW300 pump, either. I'll let Scheides be the guinea pig on that. If the 044 isn't enough for my setup then I doubt the DW pump would be, either...they are both 300lph pumps.

**scheides** · 05-04-2011

You need a level indicator for your surge tank I think

Then you'd know exactly what the problem is.

**mlomker** · 05-04-2011

Quote:

Originally Posted by scheides

You need a level indicator for your surge tank I think

Then you'd know exactly what the problem is.

haha. Wouldn't that be nice? You'd pretty much need a surge tank with a fuel level sender built into it, which doesn't exist.

I'm going to order a Weldon today. If that doesn't solve it then there's nothing left to do but get rid of the in-tank hanger. For what it'd cost me to get a stock hanger it might make as much sense to find someone that can sump the tank for me. I'll ask around about that when it comes to that.

**mlomker** · 05-08-2011

A flow chart for the Jay Racing "342," which is their competitor to the DW300. I've ordered one of these and I'm going to pull the two 255s out of my Full Blown double-pump that is in the tank. This beast flows over 400lph at low pressures (to fill the surge tank) so having duals would be silly. I think I'll just use the Hobbs switch for the second pump to activate the Weldon pump speed controller when I put that in.

I've been doing a bit of research into installing a collector in the stock gas tank--either a plastic ATL one or having something welded into the tank. I hope it doesn't come down to that kind of craziness.

A custom version of this that is small enough to fit down the pump hole is a thought:

I also found out that they make a complete fuel tank replacement cell. It's only suitable for track-only vehicles and race gas. It's interesting, nonetheless.

**mlomker** · 05-09-2011

Dunno if it'll help but it looks sexy. Need to figure out the small bits and a make a temporary mount...will probably have Primo powdercoat and/or make a more attractive plate later on.

**scheides** · 05-09-2011

whoah, nice!

**mlomker** · 05-10-2011

I'm close to buying a stock fuel hanger from a guy that is upgrading to a fuel cell. It's costing an arm & a leg, of course. Reverting the in-tank hanger to stock and dropping in a Jay Racing pump should solve my issues. That combined with the surge tank and Weldon should make for a solid setup.

Once I'm sure I have the hanger I'll have to look at AN-fitting adapters for the stock hanger, get another pump centering ring...and a bulk-head fitting for wiring. Since I don't have the stock electrical plug I'll have to rewire the hanger and feed the wiring out through another hole.

**mlomker** · 05-11-2011

I've never been so excited about an OEM part. The guy is sending me both the hanger and the wiring plug! So awesome.

I think I'm going to hold off on the Weldon install until after Proving Grounds. This will tell me for certain whether it was the Full Blown hanger and I might as well wait until real E85 is here for a retune.

**Murlo26** · 05-11-2011

YAY OEM PARTS!

I am guessing the stock hangar will fix quite a bit.

Do you have a 255 in tank to fill the surge tanks? Or did you end up with the Jays racing one or something, I have lost track.

**mlomker** · 05-11-2011

Quote:

Originally Posted by Murlo26

Or did you end up with the Jays racing one or something, I have lost track.

I'll be throwing one of the Jay Racing 300lph pumps in it. In theory that should be adequate overkill since at 0-4psi they flow 425.

I ordered a fuel pressure gauge for the surge tank since I want to see if the -6an main tank return is being overwhelmed.

**mlomker** · 05-18-2011

The guy I bought the fuel hanger from has been incommunicado for a week now. Strange considering how he said he'd ship the moment he had the Paypal.

I keep hoping it'll be here when I get home.

**Kracka** · 05-18-2011

**cmspaz** · 05-18-2011

Probably time to cancel the paypal and tell him he can get it back when he decides to talk to you again.

**mlomker** · 05-18-2011

Yeah Spaz, I figure I'll wait until Friday because the item is rare and I need it. boo.

**mlomker** · 05-18-2011

Looks like it'll arrive on Thurs. UPS ground from CA to here always blows. I'll have that sucker in this weekend if all of the pieces are there.

Ran over to simulatedwood's place to work on my car and forgot the lug key in another one of my plastic bins. Fuuu...