Morel lifters
03-08-2005, 09:12 PM
#1
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Morel lifters I am going to swap the heads on my truck in the next few weeks. Is there any gain with the Morel lifter? Is it quieter? How much preload does it need? I just want to make the valvetrain bulletproof. Someone I had thought said there was a HP gain from these.
03-08-2005, 09:54 PM
#2
I'm not sure how you would gain from swapping lifters unless they were lighter. No bigger than the cam/spring combo is on your truck, I wouldn't spend the $500 on them. I have them in my car, but I run a pretty stout set-up and felt that they were needed. I don't think they are any quieter, and there aren't any pre-load problems with these, unlike the comp R's.
03-08-2005, 11:35 PM
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I could see slight gain, insignificant as it may be, based off the performance, lack of bleedout, consistency basically. I agree with OE lifter for smaller cams and applications not requiring +7000rpms all the time. The are a little pricey, but obviously they can be had for enough less than $500 by shopping around. Also, think future use, as now they nearly everyone is short supplied.
03-09-2005, 08:49 AM
#5
I have seen the results of 2 test comparing the Morels to other brands. In both cases the other brands began to float at 5800 in one test, 6200 in the other. The Morels were taken to 6600 max and 7300 max rpm with no float. One of test the Morels were worth 21HP with just lifter change, the other was 9HP with lifter change. Testing was done back to back, same day. Time difference was only the amount of time it took to remove intakes to swap lifters and adjust. Comments on "noise" was there was not any difference that could be heard between the Morels and the OEM's.
Chris
Chris
03-09-2005, 03:29 PM
#7
Mattrem,
Hyd. absorb HP. Just like a auto trany takes more HP then a manual. Leakage, bleed off are all critical as to how much HP is lost. The tighter the tolerance to specification the less loss. Morel has very tight tolerances. No this is not your average replacement part. Just likes a Jesel or a Crane rocker arm is not a replacement rocker. You pay more but you get more.
Chris
Hyd. absorb HP. Just like a auto trany takes more HP then a manual. Leakage, bleed off are all critical as to how much HP is lost. The tighter the tolerance to specification the less loss. Morel has very tight tolerances. No this is not your average replacement part. Just likes a Jesel or a Crane rocker arm is not a replacement rocker. You pay more but you get more.
Chris
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03-09-2005, 03:41 PM
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Are these taller than stock? I don't have adjustable rockers and I was looking just make the valvetrain bullet proof I hear alot of good about these and figured I would change them when the heads were off.
03-09-2005, 03:50 PM
#11
what bout rocker arms with these lifters? ... can you use the stock ones or do you need adjustable? and if stock ones will work, how many people are actually usin the stock rockers with these over adjustable?
03-09-2005, 06:51 PM
#12
Originally Posted by madpwr1
what bout rocker arms with these lifters? ... can you use the stock ones or do you need adjustable? and if stock ones will work, how many people are actually usin the stock rockers with these over adjustable?
03-09-2005, 09:28 PM
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I dont have the engine finished yet, but as soon as I get home my APE 347 will be running with stock rockers and Morel lifters. The only delay will be getting the pushrods made if they are of an odd size after checking length at pre-assembly. Wont be until around 1 May, I am still in Afghanistan now, but I will post up the results gladly. Looking forward to this new combo like you cant believe.
Charlie
Charlie
03-09-2005, 10:27 PM
#16
Originally Posted by MUSTANGEATER
The stock rockers are a great piece but I would just get a set of Jesel's and be done with it. Jesel Shaft Mounts and Morel lifters here
Sounds like a great setup!
Thanks,
David
