Is this normal for a big ass cam?
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Installed the MS3 and PRC heads.
When I fired her up yesterday I was pretty surprised. Well for one the oil pressure never came up
so I shut her down after 7 or so seconds - Got to take care of that sometime this week.
Anyway, what surprised me is that she started first try. Idled on her own at 1k and stayed there by herself. Never tried to die on me, never had to give her gas to keep her going either. It also did not sound that different to me? I heard no lope, actually sounded like the stock cam but louder. Not sure if thats normal or not? stock tune, no tb drilling etc..
Kinda surprised me
When I fired her up yesterday I was pretty surprised. Well for one the oil pressure never came up
![The Jester](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_jest.gif)
Anyway, what surprised me is that she started first try. Idled on her own at 1k and stayed there by herself. Never tried to die on me, never had to give her gas to keep her going either. It also did not sound that different to me? I heard no lope, actually sounded like the stock cam but louder. Not sure if thats normal or not? stock tune, no tb drilling etc..
Kinda surprised me
![EEK !!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_eek2.gif)
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Originally Posted by Lithium
Anyway, what surprised me is that she started first try. Idled on her own at 1k and stayed there by herself. Never tried to die on me, never had to give her gas to keep her going either. It also did not sound that different to me? I heard no lope, actually sounded like the stock cam but louder. Not sure if thats normal or not? stock tune, no tb drilling etc..
Kinda surprised me![EEK !!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_eek2.gif)
Kinda surprised me
![EEK !!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_eek2.gif)
Ski
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No I loosened one of those 2 bolts that hold down those clips that go the PCM. That was like 2 weeks ago cause I thought I was going to take it out and send to TSP for them to tune. But I decided not to and just never torqued down one of the two bolts. ![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
I knew it was going to be something reallllly retarded.
Now I have to figure out why there is no oil pressure
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
I knew it was going to be something reallllly retarded.
Now I have to figure out why there is no oil pressure
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Well, at least it was something small. I'd be more worried about the oil press problem though. Heres the link to my post with the video on it. You can see what I meant about high idle..then we got it fixed..
https://ls1tech.com/forums/showthrea...42#post4014542
https://ls1tech.com/forums/showthrea...42#post4014542
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LOL yeah I am.
Yeah I swapped it with a ported LS6 pump I bought off of a member on here.
I really dont know why there is no pressure...I know I installed that basterd right...
Yeah I swapped it with a ported LS6 pump I bought off of a member on here.
I really dont know why there is no pressure...I know I installed that basterd right...
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Mine also started right up on a stock tune, it was great, then I shortly figured out the thermostat stuck closed sometime during the swap. So my fun too was cut short. With this cam you won't hear a huge lope above 1000 rpm. Don't get too exited though, put a load on the engine and the lack of a tune becomes apparent. Probobly won't start and hold idle that well again, till its tuned.
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my x3 fired right up the first time. idled a little high about 1000rpm but was fine, could still hear the lope, opened up the cutout and could really hear the lope. try a warm start and see what happens, my car would not hold idle on a warm start for **** until I opened the setscrew, even then it wanted to die.
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Did you put in a double roller timing chain? If so, did you make sure to put the spacers between the oil pump and the block (they can be put on upside down, blocking oil passage)?
If you're still running a single chain, I'd tear her down again and check the oil pump O-ring to make sure it isn't pinched. I had the same problem with a truck I was working on over the weekend and the O-ring was pinched so it had no oil pressure.
Another thing it could be is the oil pressure sending unit. Since you swapped heads also, did you by any chance break the sending unit under the intake manifold?
It could be either of these three, but I'm leaning towards the O-ring. Good to hear you have it all buttoned up!
If you're still running a single chain, I'd tear her down again and check the oil pump O-ring to make sure it isn't pinched. I had the same problem with a truck I was working on over the weekend and the O-ring was pinched so it had no oil pressure.
Another thing it could be is the oil pressure sending unit. Since you swapped heads also, did you by any chance break the sending unit under the intake manifold?
It could be either of these three, but I'm leaning towards the O-ring. Good to hear you have it all buttoned up!