[zombiekiller1987]

what up guys...new to this site got some issues with my setup that i've been working on for too long (over a year)!

First of all here is my setup:
ford racing 351 crate, afr 185s, e cam, 1.6 svo rockers, holley system max manifold,summit 42lb inj.,walbro 255lph f/p, BBk adj fpr, 75mm t/b, no egr, 76mm c&l maf housing for 42lb inj. w/ stock sensor,msd blaster coil, msd cap and rotor stock dizzy, new icm, frpp 9mm wires, procharger p600 10lb pulley oil fed with god speed 30x12x3 i/c, msd 6al, aem wide band uego, tko 600, zoom stage 3, pro 5.0, detroit locker w/4.10s, moser 31s.

my problem is i've been building this thing up for a while...long story short..i got the setup rolling now i have not gotten it tuned yet but it falls on its face immediately under power train load...i put new gas in after a year of sitting with lucas fuel stabilzer, set the timing as close as 10BTDC w/spout out, a/f ratio at cold idle is about 12.2-13.3,pulling 8-10" vacuum, fuel press is around 30psi at idle ...i'm scratching my head trying to figure this out...im not sure if my balancer ring has moved my crank pulley doesn't seem to wobble...anyone have any advice??? i need to at least get it rolling to take it to get tuned ya know?

[zombiekiller1987]

i forgot to mention that it does rev and idle fairly well...just as soon as i put it in gear to drive it falls flat on its face and is a total sputter mobile...someone here has to have a lead to go on come on guys!

thanks a bunch

[fogged306]

What's the fuel pressure at? If you're not sure about the balancer get a piston stop and verify the timing marks.

[zombiekiller1987]

fuel press is right around 30psi...and will try re timing

[fogged306]

Is that with the vac line on or off? If it's on, which it probably is, pull the line and see what's it's at then. Set it to 39PSI with the line off. I don't know a whole lot about boosted engines, so I may be wrong here because of the blower spinning even at idle, but that vac at idle is low. Someone with more knowledge of blower cars can correct me if that's wrong. It also depends on the cam too, but generally you want around 17"+ of vac at idle. Have you checked for vac leaks? Where does it idle at? What about codes?

Also when you say load, do you mean when you put it in gear and try to move it? Or does it seem to struggle when you snap the throttle in neutral? Is it possible you have something wrong with the clutch?

[flattusmaximus78]

Just going to toss this out there... is the car tuned?

[fogged306]

Originally Posted by flattusmaximus78 Just going to toss this out there... is the car tuned?

lol, he's trying to get it running enough to actually drive it to the tuner.

[mayosailor27]

Turn up the fuel, what is fuel psi at with the vacuum line on the fpr off?

[zombiekiller1987]

8-10" vac is normal for the e cam at 6000ft elevation, i live in albuquerque, NM. sprayed all vac lines and all around manifold w/ brake clean no idle change/no leak...just put the manifold on. Car idles around 800rpm. And yes when i meant under power train load i meant putting car in gear to drive. Free revs great in neutral. Just as soon as i let the clutch out to drive it, it sputters/hicups/not driveable at all. So i started thinking that my gas that had been sitting in there for about 8 months had gone bad. I renewed the gas today and added fuel stabilizer seemed to idle and rev better, just same issue arised...thats when i started thinking about my balancer ring moved...but that seems fine. spark plugs are autolite 3924 gapped to .032" Clutch is good drove it before i put the blower on, which is where the nightmare began lol!
im going nucking futs man

[93hatch]

39-42 psi fuel pressure vac off

[mayosailor27]

That sounds like it sucks man. That damn gremlin!! I saw you said balancer perhaps, could be since when it turns your timing is changing. I hate problems like this. Did you check your timing yet?

[zombiekiller1987]

Originally Posted by mayosailor27 Turn up the fuel, what is fuel psi at with the vacuum line on the fpr off?

i dont think i should turn up the fuel with a/f ratio being near 12:1 at idle thats pretty rich! i've been turning the fuel down lil by lil monitoring with aem uego. i will check the fuel press with line off tomorrow when i go to work which is where my car is. regulated with vac line on its 28-30psi

[zombiekiller1987]

Originally Posted by 93hatch 39-42 psi fuel pressure vac off

this is suitable for boosted cars? i'm starting to think if i go any lower with fuel press. my injectors wont be able to atomize..which leaves with my injectors pushing too much for my motor, maybe i need to go smaller...even though when i was first putting the blower on i had delphi rochestor 50lb injectors it didnt drive like this(or should i say not drive). so i keep asking myself what have i done different to make it act this way...cant figure this out...before the blower the car had 30lb injectors and ran great, of course i wanted to go faster and now its nothing but a headache ugh!

[zombiekiller1987]

no codes either

[fogged306]

Here is a pretty solid article I just read about fp the other day. When the car is tuned, it will need to see the 39 with vac off pressure in order to use the correct amount of fuel. The EEC has fuel tables that it uses and they are based off of the amount that would be sprayed by the injector at that pressure. If it's a different pressure, then the tables go out the window. I never thought about this myself until it was just brought to my attention recently... in your case, the fact that you're so far from stock logic, I doubt this will apply until it is tuned but it is something to try. Those 42's aren't too big for that amount of boost and cubes you have.

[93hatch]

Winnrar

[zombiekiller1987]

well thank you guys. i think i have enough input and keep you all posted thanks a bunch!

[zombiekiller1987]

Originally Posted by fogged306 Here is a pretty solid article I just read about fp the other day. When the car is tuned, it will need to see the 39 with vac off pressure in order to use the correct amount of fuel. The EEC has fuel tables that it uses and they are based off of the amount that would be sprayed by the injector at that pressure. If it's a different pressure, then the tables go out the window. I never thought about this myself until it was just brought to my attention recently... in your case, the fact that you're so far from stock logic, I doubt this will apply until it is tuned but it is something to try. Those 42's aren't too big for that amount of boost and cubes you have.

and wouldn't this basically just mean i just need a tune? or a chip made?

[fogged306]

Well that's a given, but you should be able to crutch the car to the tuner.. at least I've seen people do so in the past with boost and 42's. You may have things working against you though like the cam, and your elevation and that C&L, or you may just have something stupid preventing you from getting it to run decent enough to drive.

I would use the piston stop to check the timing marks. Once you're certain of timing, verify your fp, and if you still can't get it to move my next guess would be the C&L.

[flattusmaximus78]

Set vacuum like hatch said and re-set your timing, tripple check the firing order. Some cars untuned simply can not be driven. I think Darrel had a fox that he had to get towed to the tuner, no mechanical issue though, just the way some are. I just finished up a build and the cars pig rich, because it's a stock 5.0 with a vortech and 39lb injectors. It drives like stock though it just smokes like a chimeny. Just needs a tune for fuel provisions.