Man, the suspense is killing me! Hurry up and check that stuff out Brad!


Cheers!

 

Well, I put a fuel gauge on it. I temporarily took out the fuel filter to install the T for the fuel gauge. Fuel PSI is great. Moves up with boost. But it didn't fall on its face this time. I drove it pretty far to. Pissed me off. I expected to act up as always but noooooo. I think my car is on to me and is just screwing with me. I don't really think it's my fuel filter, it's brand new and I can blow through it no prob. Well anyway. I'm gonna go to the fitting store and get me the proper fittings so I can permanantly mount my fuel gauge. It's in my cowl, plenty of room in there. And then I'm gonna go for a drive till it does it again. This car sure is hard on gas. I haven't gone anywhere really and its sucked up almost half a tank of gas already. I'll post another update later if it falls on it's face again. Now I'm hoping it will. Whatever. Later...

 

I had a strange "fall on its face" problem with my blower.

i would be running it through the 1/4 mile (test run stuff) and all of the sudden it would start to jerk and choke. the first time it happened i thought "oh crap detonation" because thats what it felt like, except without so much noise.

about the 3rd time I managed to take a look at the fuel pressure guage and... yes... 1 PSI.. lol...

the pump simply couldnt keep up with the damands of the engine... as i let off the PSI would jump back up...


But since YOUR problem persists on the HIGHWAY when fuel demand is minimal, i doubt an undersized fuel pump is your problem... but remember if you do go electric, you want a good one. really good. one that wont burn up during daily driving, and one that will supply enough fuel...

Mine was a holley blue, and a carter street. both were insufficient.

 

Since you took off the filter and didn't have the cutting out, maybe that's your problem right there

 

If the carb has a filter in it, I would take it out and just run a inline.

 

Well I just got back from a test drive I started at 1pm and it's 4pm now. Pouring down rain and I forgot to bring some tools. What a nightmare. Had to call someone to bring me tools. I got soaked. But I did find the problem. It was the new hi-flow needle and seats I bought. I was driving it and this time I smelled gas real bad. It was squirting out of the power valve and the throttle shafts. I guess instead of sticking closed and running me out of fuel they decided to stay open and flood my carb. Gas was everywhere. I did at least have a fire extinguisher with me. So now I know it's my carb. Fuel pump is fine. Gonna put the stock needle and seats back in. They worked fine before. I'm done for the day. I have this weekend off so I'll fix the carb then. Time to dry off.

Brad...

 

Think you just created a new problem by removeing the fuel filter.
It's amazing how little a piece of dirt/ grit is nessessary to cause a flooding problem.

Best to put the fuel filter back in and isulate it from heat.

 

I had the filter on this time. But I gues just driving it for a bit without it screwed me. There was a lot of junk in the carb. But right after I changed the needle and seats I had a problem and it was clean. I'm gonna clean it all out real good and try again. If the NS stick again I'm putting my old ones back in.

Brad...

 

All is good. I took the carb off and cleaned it. Blew it out real good with air to. Filled the bowls with 87 octane (lawn mower gas) sure makes it fire right up. And I noticed a nice big fountain of gas. Ooooops, forgot to hook up main fuel line. Gas everywhere. Hate it when that happens. Had to wipe everything down. At least it's nice and clean in the engine compartment now. Runs great though. Car really gets up and goes. Even with that cam I have in there, it seems to be making the best of it. I cooked my boost gauge hose so now I have to replace that and I'm done. Except for the 9" that's going in soon. Thanks for the help everyone. Couldn't have done this without all your help and ThirdGen.org.

Brad...

 

He he, I wasn't any help, but I was rootin' for ya!! Congrats Brad!

Cheers!

 

Nice work!

Any plans for dyno or track testing?

 

Now you need a timeslip!

Congradulations!

So to get this straight... you're just running a plain old edlebrock carb with no mods, right? Makes me consider getting rid of the FI

 

All I did to the carb was take off the choke and I plugged the holes with 5/16 allen plugs and put in hi-flow needle and seats and put in .110 jets for the secondaries. I haven't done any WOT blasts yet, but I don't see having any probs unless I get more dirt in the carb. Might drive it to work tonight even though it's raining. It might be dry in the morning, if it is then it's WOT time. The track around here opens Feb 2 I think (I need to call them) if they are I'll be there. Can't wait to get some timeslips.

Brad...

 

:hail:

 

Brad,
I have been following your progress and GREAT WORK!!! Your an insparation . Your running a 355 and not a 383 right? If so keep us (or me ) posted on how the XE268 cam works out for ya. That is the cam I am running too and Dart 200cc heads so our setups are similar I think. My low end is cooked anyway and I have a 2700 stall so I am courious to see how that setup work. My guess is the overlab kills the low end torque but who cares when it tachs up to nearly 3K and goes into instant boost huh?

 

I'm not exactly how well it's working yet. I haven't been into boost for any amount of time. I'm running lean now and I have to replace an oil drain on one of my turbos. The one I made just isn't cutting it. Was hoping to get to the junkyard but it was raining too much. Maybe tomorrow. I rejetted the carb with the biggest jet I can get. If that's not enough I'm gonna drill it out or might try and run without it. I figure the motor will only take what gas it needs. Who knows. But drilling it bigger should work if these .119 jets don't.

Brad...

 

Now keep in mind I have NO pratical experience but something comes to mind about your fuel problem. With that big ol 800 cfm carb maybe your not getting enough pressure drop through the carb to pull enough fuel to the motor. Would a smaller carb work better? May have just made myself look stupid but just thought I would throw that out there.

Once again good job and keep us posted as you work out the bugs! Can't wait to hear what your 1/4 times and dyno #'s turn out to be.

 

Mefreema, you make an interesting point. I’ve heard the same argument before (don’t ask me about tuning carbs, I’ve done little of that in my life). Basically from what I’m hearing from others, with turbos the way to go is supposedly getting a carb that is bearly enough for the engine NA, then tuning them with little or no accelerator pump shot and big secondary jets.

I was under the impression that that thing had a 600cfm edelbrock on it which would be just right (350, 6000rpm, 100% VE = 608cfm), but if it was 800 I could imagine a situation that you wouldn’t have enough volume flow (there will be plenty of mass because of the turbos, but it won’t be at a greater volume then if it was NA) across the carb to get a good signal.