This is topic vortech blower timing in forum Tech Talk at Northern California Ford Owners .
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Posted by underconstructiongt (Member # 7378) on
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got a vortech with 4lbs of boost what should my timing be at the car is running rich as hell, it also has trick flow heads and f303 with the 42lbs injectors and matching maf! thanx in advance
Posted by StreakMatt (Member # 6257) on
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quote:
Originally posted by underconstructiongt:
got a vortech with 4lbs of boost what should my timing be at the car is running rich as hell, it also has trick flow heads and f303 with the 42lbs injectors and matching maf! thanx in advance
You're only making 4 psi?? You have some issues if thats the case.
Posted by 68dustin (Member # 5388) on
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yeah, what pulley are u running?
Posted by underconstructiongt (Member # 7378) on
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6lb pulley, haven't done a full W.O.T run cause the car is running so damn rich it feels like its choking so Mich gas on it and I just have a 195gph fuel pump
Posted by Wrench Monkey (Member # 9529) on
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quote:
Originally posted by underconstructiongt:
6lb pulley, haven't done a full W.O.T run cause the car is running so damn rich it feels like its choking so Mich gas on it and I just have a 195gph fuel pump
So, how can this be running rich? That pump's maxed out, what you really need is a vortech boost box. So you can have the timing pull itself back on it's own.
Posted by slocobra (Member # 6311) on
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What is your fuel pressure? What is your timing at now?
Posted by underconstructiongt (Member # 7378) on
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got the timing at 6* btdc and the fuel pressure is at 35psi at iddle but once i start to drive you can hear the car chocking and after driving it for a couple of mins when you come to a stop the car shuts off.
Posted by Secnd2nun64 (Member # 1431) on
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Sounds like you got a vacuum line disconnected.
Posted by underconstructiongt (Member # 7378) on
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I've looked for vaccum leaks from day one cant find any, i also installed an msd al6 box, with a crane cams fire ball coil.
Posted by Secnd2nun64 (Member # 1431) on
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Bump up your initial timing to 11-12. 6 is way too low and your not running crazy amounts of boost. Get your total timing to 31-32. On mine, i had ran 38 total with boost retard set at 3/4 per pound of boost running a 10lb pulley. This seemed to be the sweet spot for my setup. How many lbs of vac to you have at idle?
Posted by slocobra (Member # 6311) on
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need to get a boost retard box and get that timing back up. night and day difference
Posted by underconstructiongt (Member # 7378) on
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vac. is steady at 10lbs, got the timing at 12* the car iddles alot better and the manifolds are glowing red hot so i think the car is leaning out now.
Posted by Secnd2nun64 (Member # 1431) on
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10lbs low for your car? You got a big cam? Glowing manifolds could mean being lean, timing still, vacuum leak still or a clogged cat. Might be time to start spending some money. I would start off with the boost timer so you can get your timing in order.
Posted by dvuspny (Member # 10949) on
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TDC again with a piston-stop.
Mark the balancer as required.
The timing is too retarded.
Fuel pressure should be 42-44psi.
Posted by underconstructiongt (Member # 7378) on
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so i added some 100 octane and the car iddles better the cats are comming off today, i think they broke, the vaccum goes up and down when the car is cold but once it warms up it stays steady at 10 lbs. what should my vaccum be at?
p.s. i am in the market for a timing retard box if anyone here has one for sale?
Posted by 93 twintrbo (Member # 10475) on
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Ive got a buddy that is getting rid of his MSD btm with dial switch etc.. Dont need it anymore as I am installing a stand alone ecu. He also has a aftermarket MAF calibrated for 36lb injectors. You will need to drive to santa rosa to pick the parts up, but it will be worth the drive. Shoot me a PM if interested.
Thanks
Lawrence
Posted by underconstructiongt (Member # 7378) on
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got the car to iddle and runs good first and second gears but once i hit 3rd the car just nose dives and blower would not boost, any input on it has anybody have this problem before?
Posted by Wrench Monkey (Member # 9529) on
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quote:
Originally posted by underconstructiongt:
got the car to iddle and runs good first and second gears but once i hit 3rd the car just nose dives and blower would not boost, any input on it has anybody have this problem before?
Is it pulling too much timing? If it's detonating or misfiring you won't register boost accurately. What is base idle timing, how about spark advance.
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