I had them, along with Jun retainers and springs all on a stock block. Never had a chance to really tune it (only had a VAFC and other bolt ons). Made 191whp. Was very driveable, idles like stock and VTEC screams really, really loud. Had a really annoyingly loud ticking though. Imagine the worst ever valve job and that's the ticking I'm talking about. Type writer ticking. A few other ppl I spoke with with Jun cams had the same problem... like a time bomb counting down.
Btw, Jun only makes one profile for the H22s, there's no stage 1, 2, or 3.
yeah, oops, I know they only had 1 set of cams, they used to label their cam kit for the Prelude in 3 stages, where the only differences were what type of retainers you use.
So they're loud huh? I had a feeling that might be so just from looking at the springs. As far as the bomb counting down part, do you know anyone who broke a JUN cam? I saw a post on h-t regarding a crower cam snapping, and one person posted about a guy on h-t who broke his JUN cam.
I had them, along with Jun retainers and springs all on a stock block. Never had a chance to really tune it (only had a VAFC and other bolt ons). Made 191whp. Was very driveable, idles like stock and VTEC screams really, really loud. Had a really annoyingly loud ticking though. Imagine the worst ever valve job and that's the ticking I'm talking about. Type writer ticking. A few other ppl I spoke with with Jun cams had the same problem... like a time bomb counting down.
Btw, Jun only makes one profile for the H22s, there's no stage 1, 2, or 3.
Wow I never knew that thanks! The ticking though hmm is that really normal or was it built incorrectly? How long did you run with this setup for?
The ticking is normal... everyone that has Jun cams has experienced it. It was built by a very reputable builder that has done full engine rebuilds (and build ups) so it's definitely not in the build process.
i was reading around on h-t about a few people with broken jun cams, kinda a slap in the face after paying that much for em, huh? Someone raised the point that titanium retainers were to blame, and it's because titanium is softer so it doesn't last as long, but that doesn't make sense to me, like why would JUN and other companies then recommend titanium retainers over other metals?
There is something I'd like to know. How exactly do you "break" cams. I saw a thread on a broken crower cam, and the cam literealy broke. How is that possible? I mean the only way i can think of it is friction. If theirs too much friction in one place on the cam it would spin slower than the other parts of the cam, so I can see it breaking that way. I think i'll invest in an oil pressure gauage. I've heard of all the cams breakin: skunk2,crower, and now jun, their has to be some common denominator to this problem. The ti problem i have heard time and time again tho. I'm prolly gonna stick w/steel, i mean its not gonna be that much of a weight reduction on the valvetrain, plus i don't plan on running it up to 9k.
-Greg P
could be number of things. TI retainers arent really a problem for most. My bro has had his b20vtec running for over 15K mi. No problems at all. In terms of the cam snapping, it could be a number of things. Usually when something goes, its usually because the item has become the weakest link in the build. Alot of variables to be considered- Yes there is a growing number of people with TI retainers and springs which seem to be having problems.
I had them, along with Jun retainers and springs all on a stock block. Never had a chance to really tune it (only had a VAFC and other bolt ons). Made 191whp. Was very driveable, idles like stock and VTEC screams really, really loud. Had a really annoyingly loud ticking though. Imagine the worst ever valve job and that's the ticking I'm talking about. Type writer ticking. A few other ppl I spoke with with Jun cams had the same problem... like a time bomb counting down.
Btw, Jun only makes one profile for the H22s, there's no stage 1, 2, or 3.
Nothing, just got bored and sold it for someting else.
You do get used to the ticking noise after a while. If you can get pass that noise, then it's all good. No stalling, stock idling, high pitched screaming at VTEC and a big pull around 6000rpms.
Nothing, just got bored and sold it for someting else.
You do get used to the ticking noise after a while. If you can get pass that noise, then it's all good. No stalling, stock idling, high pitched screaming at VTEC and a big pull around 6000rpms.
I read that on Honda-Tech but still don't understand, how come the pull is at 6 and not standard VTEC engagement?
So, hehe, what did you install in their place?
As for the ticking, was it just noticeable from outside of the car or could you actually hear it from within the cabin (windows shut)?
I'm guessing big pull doesn't mean where vtec engages... if anything it would still be low wouldnt it?
-az
JUN's primaries are basically like stock primaries, so to ensure a stock idle. It's supposed to be all VTEC, I'm just curious why it's at 6k and not standard VTEC engagement on the H22.
I have no idea why mine kicked in at 6k (might have been +/2 300rpms) cause it goes by so fast. :P
My VTEC was set at 4800 but I didn't feel the car come alive until around the 5700-6300 mark. Note that your bolt ons will also affect where you VTEC should be crossover at. Maybe I just didn't give it enough fuel (VAFC) at the cross over point.
As for the ticking, yes it is noticeable even while sitting in the car. It is more noticeable outside as you drive by parking lots, ppl turn to look at your car cause they're wondering what the heck that ticking noise is.
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As for the ticking, yes it is noticeable even while sitting in the car. It is more noticeable outside as you drive by parking lots, ppl turn to look at your car cause they're wondering what the heck that ticking noise is.
Can you use stock valvetrain to run Jun cams, providing you wont rev over stock limit?
I'm thinking it'd be a death wish. Jun basically says you have to use the double springs and TI retainers, with that much lift on the secondaries, I wouldn't risk it with stock springs and retainers. Yeah though, kinda sucks how loud it'll be, not looking forward to that at all.
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