347 support
#1
347 support
hey, first let me tell you about my car:
I got an 89 vert, stroked to 347, trickflow heads and stage 1 cam, bbk 75mm TB and EGR, trickflow upper plenum with intake manifold, mac shorty headers and full exhaust, underdrive pullety, 7qt oil pan (moroso), t-56, and some other stuff that I cant remember right now.
by changing the cam on the motor, does that change the sound, because it sounds LOUD as hell compared to what it used to sound like.
I installed it last week and I finally got it to turn on last night, but there are some problems and I dont know where to begin.
First of all i think there is a vacuum leak somewhere and I have no idea where its comming from, the only thing I can think of is this junction of vacuum lines on the passenger side by the firewall, its got 4 vacuum lines merging into a rubber retainer and then 1 vacuum coming out of the top for the EGR. I dont know if it's supposed to look like that because when I took out the stock engine i didnt notice it.
another problem i am having is that its backfiring, i am thinking that this is related somehow to the mysterious vacuum leak, or my valaves arent correctly tightened down.
one more problem. as i shut off the engine I hear a whistling sound like as if pressure is being released from somewhere. I am thinking that maybe this has something to do with my fuel injectors not sitting properly, maybe an O ring is bad or something, It's loud as hell when the engine turns off. also i have a adjustable fuel pressure regulator with a gauge and the system is not holding pressure when the engine is turned off, is it supposed to?
I got an 89 vert, stroked to 347, trickflow heads and stage 1 cam, bbk 75mm TB and EGR, trickflow upper plenum with intake manifold, mac shorty headers and full exhaust, underdrive pullety, 7qt oil pan (moroso), t-56, and some other stuff that I cant remember right now.
by changing the cam on the motor, does that change the sound, because it sounds LOUD as hell compared to what it used to sound like.
I installed it last week and I finally got it to turn on last night, but there are some problems and I dont know where to begin.
First of all i think there is a vacuum leak somewhere and I have no idea where its comming from, the only thing I can think of is this junction of vacuum lines on the passenger side by the firewall, its got 4 vacuum lines merging into a rubber retainer and then 1 vacuum coming out of the top for the EGR. I dont know if it's supposed to look like that because when I took out the stock engine i didnt notice it.
another problem i am having is that its backfiring, i am thinking that this is related somehow to the mysterious vacuum leak, or my valaves arent correctly tightened down.
one more problem. as i shut off the engine I hear a whistling sound like as if pressure is being released from somewhere. I am thinking that maybe this has something to do with my fuel injectors not sitting properly, maybe an O ring is bad or something, It's loud as hell when the engine turns off. also i have a adjustable fuel pressure regulator with a gauge and the system is not holding pressure when the engine is turned off, is it supposed to?
#3
RE: 347 support
vac leaks are common just keep looking
backfire could be tons of things
the heads, cam intake and exhaust will all make it louder
you need a better cam for that 347 anyway......... you have a 302 cam in there
backfire could be tons of things
the heads, cam intake and exhaust will all make it louder
you need a better cam for that 347 anyway......... you have a 302 cam in there
#4
RE: 347 support
the cam that came with the trickflow kit isnt good enough? damn man you know what a hassle it is to yank that engine out again to shange the freakin cam, I wish I would have known that before i installed it. What do you recommend?
#8
RE: 347 support
originally I was going to do a 5.0 swap into my ranger, that would've been sweet except i needed to buy a mustang to gut it for parts to put into the ranger F-that! i rather hack up a ranger than a mustang. i wasnt aware at the time that trickflow made different stage cams i just purchased the whole upper assembly for like $2k. Then i said F-it let me stroke it, so i spent another $1.5k on parts and another $900 at the machine shop balancing and all that good stuff that machine shops do. I then went crazy and started buying crap for it. Now i have about $7k between engine and trans and a vacuum leak and valves that are driving me crazy. I got an extra 5.0 motor just sitting in my house with a t-5 in decent shape. if anyone wants to make me an offer on it and come pick it up let me know.