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  #46  
Old September 19th, 2019, 09:39
sandfreestyle sandfreestyle is offline
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Re: 4.7 stroker, whatchu got?

Anyone get any rocker tick with their HS 1.65 from Russ?
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  #47  
Old September 19th, 2019, 09:55
RCP Phx RCP Phx is offline
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Re: 4.7 stroker, whatchu got?

I've had my original set for about 3yrs now(before I built my stroker) and they have been great. What I thought was a lifter tick turned out to be my cam pos sensor.
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  #48  
Old September 19th, 2019, 10:07
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Re: 4.7 stroker, whatchu got?

Quote:
Originally Posted by sandfreestyle View Post
Anyone get any rocker tick with their HS 1.65 from Russ?
Yes, but it wasn't the rocker (that's why i swapped them out to test).

We believe we know what it is on my engine but I haven't taken it apart to prove or disprove yet, so don't to divulge yet.
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  #49  
Old September 19th, 2019, 10:13
sandfreestyle sandfreestyle is offline
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Re: 4.7 stroker, whatchu got?

I've had a tick somewhere between cyl 4/5 since it was new when Russ built the engine. wasn't a big deal with other things needing priority, but now it's annoying me and is at the top of my "to do" list.
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  #50  
Old September 19th, 2019, 10:15
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Re: 4.7 stroker, whatchu got?

We thought for a while that it may be a lifter issue, but it doesn't appear to be.

Then we thought the extra spring pressure of the LS valve springs + the added rocker ratio may be causing lifter bleed down, but at this point we're pretty sure that's not it either.

We have some other theories, but its premature. Ask me in a few weeks.
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  #51  
Old September 19th, 2019, 10:26
sandfreestyle sandfreestyle is offline
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Re: 4.7 stroker, whatchu got?

Are you getting it all the time or just at higher RPM? Mines all the time but more noticeable at low RPM, I think because there's less noise all around not drowning it out.
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  #52  
Old September 19th, 2019, 10:29
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Re: 4.7 stroker, whatchu got?

I get it more at low RPM.
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  #53  
Old September 19th, 2019, 10:31
offthemap offthemap is offline
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Re: 4.7 stroker, whatchu got?

What a great thread.. my bank account is going to hurt soon!
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  #54  
Old September 19th, 2019, 10:32
sandfreestyle sandfreestyle is offline
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Re: 4.7 stroker, whatchu got?

Standard pump or HV? I have a standard pump because at the time Russ said HV were backordered.
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  #55  
Old September 19th, 2019, 10:32
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Re: 4.7 stroker, whatchu got?

Thanks for taking the time with the details of the build, Cal.
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  #56  
Old September 19th, 2019, 10:37
RCP Phx RCP Phx is offline
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Re: 4.7 stroker, whatchu got?

Quote:
Originally Posted by cal View Post
We thought for a while that it may be a lifter issue, but it doesn't appear to be.

Then we thought the extra spring pressure of the LS valve springs + the added rocker ratio may be causing lifter bleed down, but at this point we're pretty sure that's not it either.

We have some other theories, but its premature. Ask me in a few weeks.
What much lifter pre-load our you running?
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  #57  
Old September 19th, 2019, 10:38
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Re: 4.7 stroker, whatchu got?

Mine is a HV pump. You wouldn't know it looking at my build but i was trying to pinch pennies and I re-used the crank from the race car's engine, which had been reground twice now, and was a couple ten thousands undersized on the rod journals - so we went HV to help make up for it.

If I were doing it over I'd have bought a new scat crank.
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  #58  
Old September 19th, 2019, 10:40
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Re: 4.7 stroker, whatchu got?

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What much lifter pre-load our you running?
Have made many adjustments. Shooting for 1/2 turn on course thread. Have gone as tight as full turn and as loose as 1/8 turn.

3 different types of lifters. 3 sets of rockers. 4 sets of push rods. 2 different heads. Lots of testing and disproving.
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  #59  
Old September 19th, 2019, 13:24
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Re: 4.7 stroker, whatchu got?

I will be most interested in what you find out. I hope to be following (somewhat) in your footsteps. I have to apply a bit of moderation though.
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