what RWHP numbers did you pull with your LS1 383 stroker?
04-20-2012, 11:53 PM
#41
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Too hot of a plug.. get NGK TR6 part #4177.. gap them at .040-.050. Replace asap.
The leakdown test will tell you where your smoking problem is coming from so you'd better get that done soon too. Also, what color is the smoke? We need to know to determine what's getting burned up and I see no one asked that previously.
The leakdown test will tell you where your smoking problem is coming from so you'd better get that done soon too. Also, what color is the smoke? We need to know to determine what's getting burned up and I see no one asked that previously.
I dont have a whole lot of experience with ls1 motors but i do have alot of motorcycle 2 and 4 stroke troubleshooting experience and i can read plugs well, that really looks like detonation, do you still have your egr hooked up, common causes for detonation are a faulty EGR valve, lean air/fuel mixtures, ignition timing advanced too far, and insufficient octane rating of the gasoline. Curious to see what this turns out to be
04-21-2012, 09:20 AM
#42
they are tr5s with gapped at .42 ive been doing alot of research and for one you guys where right about the cam it kinda sucks and it is also running very rich! and as far as the oil consumption im thinking may since they are stock ported heads, the people that did them probably didnt put and loctite or any sealer..on the rocker bolts... any suggestions? im thinking of pulling off the valve covers at the moment..thanks for the help
04-21-2012, 09:56 AM
#43
No sealer on the rocker bolts is a good possibility for the oil consumption. Looking at the spark plug it has a lot of buildup, which usually =oil getting in the cylinders & since youre getting smoke from the exhaust which only makes sense as your having to add oil all the time but it could be from valve seals as well. That plug has oil all over it! If it is the valve seals it wont show up on a cyl leakdown test. Like everyone else said you need more lift & a lil less duration on that cam for that 383 to run good.
04-21-2012, 04:59 PM
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No sealer on the rocker bolts is a good possibility for the oil consumption. Looking at the spark plug it has a lot of buildup, which usually =oil getting in the cylinders & since youre getting smoke from the exhaust which only makes sense as your having to add oil all the time but it could be from valve seals as well. That plug has oil all over it! If it is the valve seals it wont show up on a cyl leakdown test. Like everyone else said you need more lift & a lil less duration on that cam for that 383 to run good.
Right on will do, what does cnc stand for?
04-21-2012, 05:32 PM
#45
Right on brotha thanks for the info! The guy has been tuning for a very long time all GM. Yes i am hopefully going to do a leak down test this weekend! The car runs at 160 all day.. but burns alot of oil....so yeah it probably is the big *** cam no good
ill let you know how the leak down goes. Thanks again
ill let you know how the leak down goes. Thanks again
04-21-2012, 07:36 PM
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Good luck on the engine!!! I'd suggest going back to a stock thermostat, there's a reason GM didn't put in a thermostat too low, you'll have premature wear of parts and when the engine doesn't run at correct OT this will happen everytime. All out race engines yeah I'd do it since good chance you'll be rebuilding it sooner than later but with a car you typically drive a few times a week for things other than racing it's not a wise idea
Oh ok ima take off the manifold then thanks for the help!!!
04-22-2012, 09:21 PM
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intake side ouch!
Im gonna call valve seals
04-23-2012, 02:34 PM
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yessir Yeah deffinently gonna get a catch can and a ls6 valley cover, yes in the intake manifold has oil inside...what kind of catch can do you recommend?
04-23-2012, 05:22 PM
#52
Here's some reading material for you...
https://ls1tech.com/forums/generatio...outing-ok.html
Tons of setups to choose from. Mine is home made and will not work like you would want on a N/A motor.
https://ls1tech.com/forums/generatio...outing-ok.html
Tons of setups to choose from. Mine is home made and will not work like you would want on a N/A motor.
04-23-2012, 05:54 PM
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Here's some reading material for you...
https://ls1tech.com/forums/generatio...outing-ok.html
Tons of setups to choose from. Mine is home made and will not work like you would want on a N/A motor.
https://ls1tech.com/forums/generatio...outing-ok.html
Tons of setups to choose from. Mine is home made and will not work like you would want on a N/A motor.
alot of people are claiming its my rings then others say valve seals, then i thought maybe since the heads where ported is was the rocker screw holes but when i look inside the port the people that ported the head didnt port the area of where the screw sits therefore no need to worry about that even though i was hoping it was that so now im left with having to take the motor apart
heres my smoking problem
04-23-2012, 11:37 PM
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