Rocker Install
so it easier to install rockers arms for more lift
than doing a cam swap?
if it was my choice i would have went with the slp 1.85 rockers
which are installed just like the oe rockers.
than doing a cam swap?
if it was my choice i would have went with the slp 1.85 rockers
which are installed just like the oe rockers.
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I saw one guy that had to shave some of the head to fit the 1.85 rockers, any where I read they suggest no higher then 1.8. And for a cam it's up to you if you want to drop the motor to put one in, if you do a cam also you need to change the springs. $700.00 for 15-20 hp is not a bad purchase for rockers. and alot less risk you take on screwing anything up!
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sorry, it was the 1.8's. Got used to that ratio in my head and was still thinking I went up 0.1. (fixing other post now) and the quick lift rocker geometry requires shorter pushrods, so obviously rods were changed out. Left the stock springs for now, but I believe I am getting valve float at the top of first gear when it shifts. Starts to lay down slightly up there and it should pull a few hundred more RPM than that before the cam gives up.
Last edited by 06 SS; Jun 6, 2007 at 01:22 PM.
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From: LITH, IL.
Originally Posted by scarlett
I still need to adjust mine also, One day my car runs smooth next day you hear a rocker doing the little tap dance. Crane made these instructions hard to understand.
Just put about 200 miles on it today, have not checked the DIC against reality yet, but the DIC is showing a 2 MPG increase over similar speed driving while stock. I thought I might see some improvement with the quick lifts as they really pump up the mid-range, but we shall see over the next few tankfulls and then after I check the fuel slope.
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From: LITH, IL.
Originally Posted by scarlett
If I have a one making sounds off and on what do you suggest I do?
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From: LITH, IL.
Originally Posted by scarlett
If I have a one making sounds off and on what do you suggest I do?
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I just adjusted my rockers AGAIN yestarday. They were fine all day, I took it to the track then this morning when I started the car tick tick tick tick. All 4 in front are smooth as butter, but I still have 3 in the back that need to be adjusted. I have opened up my valve covers 6 times already now!
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From: Goldsboro, NC
Originally Posted by scarlett
I just adjusted my rockers AGAIN yestarday. They were fine all day, I took it to the track then this morning when I started the car tick tick tick tick. All 4 in front are smooth as butter, but I still have 3 in the back that need to be adjusted. I have opened up my valve covers 6 times already now!
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From: CT
those rockers sound like a PITA... any reason why you didn't go with the other ones some of the other guys used - the non/self-adjusters?? Seems like it was a whole lot easier for them - just put 'em in and go...
p.s. not raggin'/bustin' on ya - I don't know much about doing them or what the differences are, but am getting interested in this, so that's why I'm asking...
p.s. not raggin'/bustin' on ya - I don't know much about doing them or what the differences are, but am getting interested in this, so that's why I'm asking...
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06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
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If Crane made a non-adjustable rocker that had the Quick Lift geometry, I would have gone with that, but they don't and I really like the engineering behind them. (lifts the valve off the head @ 1.90 ratio, then by 0.300 lift settles back to the 1.8 ratio and holds that until the cam is setting the valve back down and goes back to 1.90. In theory it should greatly increase torque in the mid and upper RPM range, in reality, it launches so hard that it feels like getting rear-ended by a Suburban), I have no idea why mine ticks at me either, today it was fine on a cold start, then it started to tick after the car warmed up and for another 10 minutes after that, then silent.
It really is simple to pop in adjustables on the SBC engines (aside, it seems from the DOD 5.3), hell it is easier/faster adjusting them then putting back the stock ones that come from the factory on the older blocks. If the coils were off the covers, it would be way easy to get them all squared away. Since both of us have the same 'trouble' (so far 100% of everyone who has used them) I am leaning towards some goofy DOD aspect of the LS4 lifters causing it.
This week I will be heading back home from central Illinois and will be able to see if the ticking is setting off the knock sensor(s). If not, then I am not going to worry about it. If it does, then I will go ahead, get new springs (since I am going to pull the rockers anyway) and relash them to 1.75 turns.
It really is simple to pop in adjustables on the SBC engines (aside, it seems from the DOD 5.3), hell it is easier/faster adjusting them then putting back the stock ones that come from the factory on the older blocks. If the coils were off the covers, it would be way easy to get them all squared away. Since both of us have the same 'trouble' (so far 100% of everyone who has used them) I am leaning towards some goofy DOD aspect of the LS4 lifters causing it.
This week I will be heading back home from central Illinois and will be able to see if the ticking is setting off the knock sensor(s). If not, then I am not going to worry about it. If it does, then I will go ahead, get new springs (since I am going to pull the rockers anyway) and relash them to 1.75 turns.
Last edited by 06 SS; Jun 9, 2007 at 07:12 PM.
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Well I did another round today. And it comes down to just getting them settled in there home. I had a few that were making the tick and I corrected it again. The true test is after 7-8 hours of it cooling right down. In my opinion sure the Crane are wayyyy better but if you don't want the hassle then you use Yellow Terra or HS.
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Well I settled the last few angry rockers in there home yestarday drove it around for about 200 km woke up this morning and turned on the car no tick tick tick 
FINALLY I HOPE! Now I jsut need to figure out what the best spark plug gap is for the car stock is .040 and I have seen guys do .050, .055, .059 & .044 I have it at .055 right now?
FINALLY I HOPE! Now I jsut need to figure out what the best spark plug gap is for the car stock is .040 and I have seen guys do .050, .055, .059 & .044 I have it at .055 right now?