Stealth cam II Lobes
04-27-2009, 01:41 PM
#3
Well do you think I will get tons of valvetrain noise above idle with the stock pushrods? I ran the stockers because I cant find my checker and the engine is stock so 7.4 would be ok, but above 1000 or so it sounds like there is no oil in the topend. I didnt feel like waiting a couple days to drive it so I raqn them but I am worried that I have another problem and it is not pushrod deflection.
Thanks Pred for the quick responce, I thought they were lazy lobes not the XER's
Thanks Pred for the quick responce, I thought they were lazy lobes not the XER's
04-27-2009, 01:58 PM
#4
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predator since you seem to be a cam wizard do you consider that camshaft a good choice, for an other wise stock ls1???
also my friend has that cam on an lq4 stock bottom end with mildly ported 853s and that cam and made 393 unlocked thru a 3600 stall, with the usual bolt ons (longutbes, ls6 intake, etc) does that sound right?
also my friend has that cam on an lq4 stock bottom end with mildly ported 853s and that cam and made 393 unlocked thru a 3600 stall, with the usual bolt ons (longutbes, ls6 intake, etc) does that sound right?
04-27-2009, 02:08 PM
#5
Minus the valve train noise above idle, it idled perfect, its on the tune I was running with my LS6 cam. I must have problems with mine because it feels like it lost 100 hp though. I am debating putting the LS6 back in it. Lost all pull down low and the wy the valvetrain was singing I didnt get on it though
04-27-2009, 03:31 PM
#6
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My experience with that cam (way back) is that it likes high compression due to the wide LSA. It is basicaly a 4000 rpm + cam
cam only it is a bit sluggish below that.
Now raise the compression, shift points around 6800 rpm and it wakes up a bit more.
Back in the days, I ran low 11s with it and trapped 120mph+.
It also needs a very free exhaust, no cats (duals with X prefered)
So no, for a stock LS1, it is not the best choice due to its valve events, but in a tailored combo it has potential.For exemple it faired better in LS6 C5s.
Also this cam has to be degreed at exact ICL, otherwise it could end up retarded and push the band evenn further up.
By doing this I had advanced mine 2* to a 116+2 LSA
As to the ticking might want to do 2 things
1- Measure p-rod length and ad desired preload.
2- Check your O-ring gasket on the oil pick up tube.
All in all, that cam has the wrong valve events to achieve low end potential on a stock compression LS1.
It was done by MTI to mimic Stealth, there are better ways of doing that on stock compression.
cam only it is a bit sluggish below that.
Now raise the compression, shift points around 6800 rpm and it wakes up a bit more.
Back in the days, I ran low 11s with it and trapped 120mph+.
It also needs a very free exhaust, no cats (duals with X prefered)
So no, for a stock LS1, it is not the best choice due to its valve events, but in a tailored combo it has potential.For exemple it faired better in LS6 C5s.
Also this cam has to be degreed at exact ICL, otherwise it could end up retarded and push the band evenn further up.
By doing this I had advanced mine 2* to a 116+2 LSA
As to the ticking might want to do 2 things
1- Measure p-rod length and ad desired preload.
2- Check your O-ring gasket on the oil pick up tube.
All in all, that cam has the wrong valve events to achieve low end potential on a stock compression LS1.
It was done by MTI to mimic Stealth, there are better ways of doing that on stock compression.
04-27-2009, 05:48 PM
#7
pick up tube is fine I didnt replace the pump, that was done when I put the ls6 cam in. I am lost. I might just put in the 224/224 .563-.563 114 cam my friend has laying around and go from there. Dont sound like the stealth cam is gonna work out to well.
Last edited by beedo; 04-27-2009 at 05:56 PM.
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04-28-2009, 01:57 AM
#9
I made a checker at work today nd measured 0 lash and came up with 7.295 and I measured the stock pushrods and they are 7.394-7.396. I have .100 preload on my lifters then with the stockers, and it makes me wonder why the car sounds like the pushrods are too short. Am i having problems with the lifters bleeding down while running with the XER lobes, but the car sounds great at idle???????? Any help would be appreciated. Should I say **** it and put a ls6 cam back in and leave it alone? I pulled all pushrods and none are bent and there was plenty of preload on them from feeling them, nothing seems to be out of the ordinary but the noise
04-28-2009, 04:32 AM
#13
what you running? I am saying **** it and pulling it out right now and going to put the 224 in there. Been laying in bed for the last 3 hours trying to figure out what is wrong and here I am 4:30 pulling the bitch back out! I had the LS6 in mine and there was not a big difference over the stocker. I would not run it again if you are looking for power
04-28-2009, 04:36 AM
#14
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218 224 550 550 116 And this thing shake like I have a big cam in it everyone says its a small cam this thing sucks gas like a stripper on burbon st an the funny thing is it has a tune but I think I got fucked.
04-28-2009, 05:00 AM
#15
DAMN!!!!!!!! You have me worried now that I should of stayed with the LS6 cam, I wonder if he will sell it back to me! I was only getting 20 mpg out of the ls6 cam and 90% highway. I think you did get fucked bud has the same 224 cam I am about to stick in and he is getting ~28 mpg and it is fairly smooth. Is rough but not really that bad. Pred what kind of lobes does this good ol' 224/224 .563-.564 114 cam have? they a little softer that the Stealth?
04-28-2009, 06:03 AM
#16
TECH Senior Member
The TR224 cam?
It has comp cam TR proprietary lobes, those have a variance rate of 50 and are just 1 notch less agressive than XE-R
The TR224 is a much better cam than the MTI SII
on the 114 LSA, I think you'll like it and it is a huge improvement over LS6.
You'll need to tune it though, can't expect big gains if untuned.
It has comp cam TR proprietary lobes, those have a variance rate of 50 and are just 1 notch less agressive than XE-R
The TR224 is a much better cam than the MTI SII
on the 114 LSA, I think you'll like it and it is a huge improvement over LS6.
You'll need to tune it though, can't expect big gains if untuned.
04-28-2009, 06:20 AM
#17
Thanks, I dont know how the stealth ran I never had a chance to jump on it. Its out and looks ok, but FYI the Base Circe of the cam is 1.457 for future reference! Thanks for the help, now I wonder if anyone needs a steaalth cam lol!
04-28-2009, 10:39 AM
#20
Update!!!! Cam is in and this thing at the 650 idle is cammin hard! Sounds like a 110 lsa cam. Now I have to get the damn belt to stop squeeling. Damn belts, I ran out of carb cleaner and should have known. Pred I was wrong on the cam it is a CRANE Cam