valvetrain noise, in my procharged coupe
#1
valvetrain noise, in my procharged coupe
ok guys i hope this doesn't come up as 2 posts but my last one didn't seem to work too well for me.. so if it does just ignore this one.. ok so my car still has a stock head with stock springs lifters and rockers.. the pushrods are hardened and it has a pretty wild MTI cam, and ofcoarse the procharger.. so i have a noise in my valvetrain where you can here it clicking as the cam opens and closes the valves.. the noise comes and goes periodically, i have a set of titianium lifters that i have been told will correct the problem, i was wondering if that is true , and also if i need to upgrade springs and rockers too?? right now i've been shifting at 6k to prevent damage, but with the valvetrain straight can i push it closer to 7k ? or do i need forged internals to attempt that ? ? thanks for you help
brad
brad
#4
10 Second Club
iTrader: (26)
why the hell are you running a "pretty wild MTI cam" with stock springs????when you do a cam swap you need springs/retainers,you've already done pushrods.a bigger cam will open the valves sooner and bigger and leave them open longer.i wouldnt drive the car with out a spring swap.your lucky you havent lost your motor yet by leaving the valves hanging open
#5
Originally Posted by tarheel_s/c
yea thats exactly what i'm talking about ... what type of valvetrain mods do you run ???
Box stock 2000 LS1 with the PRC dual springs/retainers/TSP pushrods. Stock cam and heads though. The ticking noise is common, however ^^^ is right, you need springs and retainers for almost ANY cam swap.
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#8
hey guys... before you judge so quickly.. i was mistaken about the springs.. i had assumed since i was not told about them when i bought the car that he had not upgraded them.. that was completely my bad.. it has a set of comp springs installed in it.. but lifters i have are also comp.. they are not titanium.. i had thought that he had said that but i never thought it made sense putting in titanium lifters in an all aluminum motor.. and i think the clicks will be fine.. i'm just hoping that these lifters will help the noise.. i guess i was just looking to see if any of ya'll had the same experience...
#9
TECH Fanatic
iTrader: (32)
Originally Posted by tarheel_s/c
right now i've been shifting at 6k to prevent damage, but with the valvetrain straight can i push it closer to 7k ?brad
As far as the valvetrain noise goes, I have it too and have learned to just get use to it. I think my exhaust and blower noise help to tune it out a little so I don't think about it all the time.