stage 2 cams caused this
10-27-2008, 07:15 PM
#51
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I love how people on here think they know everything. Supertech's .547 lift is if they are installed at a NON stock height of 1.375, at stock height of 1.21" they can only handle .395 of lift. So I doubt you had a blank head with extra materal added to make up the difference. Here is a diagram of the supertech and some psi springs that I found to help explain it..
Now the supertech 76lb springs can handle up to .445 of lift at the stock ecotec spring height.
Now the supertech 76lb springs can handle up to .445 of lift at the stock ecotec spring height.
the gm racing cams i had in the car were over .437 lift on the exhaust, and .441 on the intake not counting on rocker ratio being added into that.
8k rpms. zero valve float, or signs of a weak spring.
now, the 78lb kit is good to .547 lift, or 13.90mm of max net lift. 20.70mm coil bind.
the 76lb kit is good to .614 max net lift, however, the coil bind rate is much lower at 19.00mm.
the 94lb kit shares the same specs as the 78lb kit. only difference is the seat pressure.
my 78lb springs from supertech have been in my car for 20k+ miles with ZERO problems. if you want to start debating anything else. get some useful information to back up your claims.
p.s. stock LSJ cams have a max lift of .395.
10-27-2008, 08:31 PM
#53
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hi. let me put it to you like this.
the gm racing cams i had in the car were over .437 lift on the exhaust, and .441 on the intake not counting on rocker ratio being added into that.
8k rpms. zero valve float, or signs of a weak spring.
now, the 78lb kit is good to .547 lift, or 13.90mm of max net lift. 20.70mm coil bind.
the 76lb kit is good to .614 max net lift, however, the coil bind rate is much lower at 19.00mm.
the 94lb kit shares the same specs as the 78lb kit. only difference is the seat pressure.
my 78lb springs from supertech have been in my car for 20k+ miles with ZERO problems. if you want to start debating anything else. get some useful information to back up your claims.
p.s. stock LSJ cams have a max lift of .395.
the gm racing cams i had in the car were over .437 lift on the exhaust, and .441 on the intake not counting on rocker ratio being added into that.
8k rpms. zero valve float, or signs of a weak spring.
now, the 78lb kit is good to .547 lift, or 13.90mm of max net lift. 20.70mm coil bind.
the 76lb kit is good to .614 max net lift, however, the coil bind rate is much lower at 19.00mm.
the 94lb kit shares the same specs as the 78lb kit. only difference is the seat pressure.
my 78lb springs from supertech have been in my car for 20k+ miles with ZERO problems. if you want to start debating anything else. get some useful information to back up your claims.
p.s. stock LSJ cams have a max lift of .395.
The max lift published by Supertech is without the optional seat locators, the coil bind height is with them.
Yup. Evo guys have problems with excessive valvetrain noise because they don't bleed there lifteres.
http://www.youtube.com/watch?v=gKX2pYVO0Ak Theres a video on how to do it on the 4G63.
http://www.youtube.com/watch?v=gKX2pYVO0Ak Theres a video on how to do it on the 4G63.
Last edited by Witt; 10-27-2008 at 08:31 PM. Reason: Automerged Doublepost
10-27-2008, 08:40 PM
#54
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well im good and so is mike with the lash adjusters then. and is friday a good day for you? it is for both of us. and what time do you prefer?
10-27-2008, 09:15 PM
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10-27-2008, 09:31 PM
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10-27-2008, 09:48 PM
#66
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lol ok well i can pick u up, i have a truck too. you live in forest hills?
well wait to see what he says. but saturday nite isnt really that good for me cuz my gf will be mad lol but if thats what it comes to then thats what will happen
well wait to see what he says. but saturday nite isnt really that good for me cuz my gf will be mad lol but if thats what it comes to then thats what will happen
10-28-2008, 06:12 PM
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i pretty much think that he is gonna wait til after we get the motors in time and then we do some data logging then he will do the retunes cuz he does a lot now n then when its timed correctly it runs like **** then he will have to go back to square one where it mite have been right and go all over again... ya kno what i mean. go on aim
10-30-2008, 08:23 PM
#73
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what do you mean what happened? im waiting to get the cams timed. i think its only like 2 teeth out
started up the car today and drove around easily for a little. as soon as i did a WOT pull and got to about 5 the car bucked n now its sputtering a lot. Spark plugs?
started up the car today and drove around easily for a little. as soon as i did a WOT pull and got to about 5 the car bucked n now its sputtering a lot. Spark plugs?
Last edited by o3nisoaso3; 10-30-2008 at 08:23 PM. Reason: Automerged Doublepost
10-30-2008, 09:24 PM
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and with out timing being out, it may be building up excessive pressure and causing the knock retard so once its timed we may have the KR fixed (unless its the noisy valvetrain). is yours still making noises?
i managed to chirp 3rd still with all the KR i got lol
Last edited by o3nisoaso3; 10-30-2008 at 09:26 PM. Reason: Automerged Doublepost