I forgot who asked me but here you have it, the Jun H22A cam specs



>>> #1 (Pri) #2 (Mid) #3 (2nd)
>>> Duration Lift Duration Lift Duration Lift VC
INT 62 (248) 9.2 74 (296) 12.2 60 (240) 7.7 0.17
EXH 61 (244) 7.7 74 (296) 11.9 63 (252) 9.0 0.19


For all of you who dont want the real jun stuff and would rather do custom grinds, this is for you.




Modified by 98TypeSH at 10:23 AM 6/16/2004

 

just gonna bump it incase people missed it.

 

awesome!

 

how much is custom grinds compared to just buying the jun cams?

 

damn it must suck to be a company, all the R&D and testing and someone just regrinds the cams to the same specs. lol Own3d!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Matgallis &raquo;</TD></TR><TR><TD CLASS="quote">how much is custom grinds compared to just buying the jun cams?</TD></TR></TABLE>

and what other issues would them be? i would imagine Jun makes there came from a lighter metal as opposed to some other companies. any other issues?

 

Are those the same specs that came off their site? Cause for you to not copy it they dont tell you what they measured that at i think.

 

Where did you get this info from? are they reliable?

Do I still still the buy Jun valvetrain to run custom regrinds?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98TypeSH &raquo;</TD></TR><TR><TD CLASS="quote">I forgot who asked me but here you have it, the Jun H22A cam specs



&gt;&gt;&gt; #1 (Pri) #2 (Mid) #3 (2nd)
&gt;&gt;&gt; Duration Lift Duration Lift Duration Lift VC
INT 62 (248) 9.2 74 (296) 12.2 60 (240) 7.7 0.17
EXH 61 (244) 7.7 74 (296) 11.9 63 (252) 9.0 0.19


For all of you who dont want the real jun stuff and would rather do custom grinds, this is for you.


Modified by 98TypeSH at 10:23 AM 6/16/2004</TD></TR></TABLE>

 

Sorry to burst everyones bubble but theres more to cams than lift and duration...

Your forgetting ramp...

ramp is something that cant be measured or copied unless you have the actual cams on a cam doctor...

Lift and duration could be idnetical but with out the exact ramp specs your not going to have anywhere near a "replica" of the original

 

Damn I was about to bring out my oem cams out for regrinding...are you sure it wont work?


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rick Solis &raquo;</TD></TR><TR><TD CLASS="quote">Sorry to burst everyones bubble but theres more to cams than lift and duration...

Your forgetting ramp...

ramp is something that cant be measured or copied unless you have the actual cams on a cam doctor...

Lift and duration could be idnetical but with out the exact ramp specs your not going to have anywhere near a "replica" of the original</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VSBB6 &raquo;</TD></TR><TR><TD CLASS="quote">Damn I was about to bring out my oem cams out for regrinding...are you sure it wont work?


</TD></TR></TABLE>

Positive

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rick Solis &raquo;</TD></TR><TR><TD CLASS="quote">Sorry to burst everyones bubble but theres more to cams than lift and duration...

Your forgetting ramp...

ramp is something that cant be measured or copied unless you have the actual cams on a cam doctor...

Lift and duration could be idnetical but with out the exact ramp specs your not going to have anywhere near a "replica" of the original</TD></TR></TABLE>

I was going to say the same thing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rick Solis &raquo;</TD></TR><TR><TD CLASS="quote">
Your forgetting ramp...
</TD></TR></TABLE>

Yes, I wouldnt think JUN would that took so long to come out with the H22 cams, and just played with duration and lift. There is a reason why JUN cams owns

 

Just need a person with the cams to do it once and mission accomplished. Yes, all of jun's parts do own, fantastic ****

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">and what other issues would them be? i would imagine Jun makes there came from a lighter metal as opposed to some other companies. any other issues?
</TD></TR></TABLE>


Jun gets their blank camshafts from the same place Honda Japan does

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CyferMah &raquo;</TD></TR><TR><TD CLASS="quote">


Jun gets their blank camshafts from the same place Honda Japan does </TD></TR></TABLE>

Thats a rumor...

Even if they were able to purchase the blanks from the same manufacturer they would not be able to purchase the EXACT cores... Honda is a large corporation that takes every legal precaution there is to ensure that prepriatary information/materials and manufacturing agreements stay 100% Honda owned and controlled...

Honda has stretegic contractual limitations with each of their outsourced manufacturers limiting them from the sale or resale of Honda products, materials or supplies...

Trust me on this

 

Thats true but in japan honda works hand in hand with a lot of racing developers and their way of business is diffrent over there than it is here.

 

wow ow woey

 

The only thing I do not like Jun is their cam gears, they tend to rust after a few years.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VSBB6 &raquo;</TD></TR><TR><TD CLASS="quote">The only thing I do not like Jun is their cam gears, they tend to rust after a few years.</TD></TR></TABLE>

And the little itty bitty allan bolts suck. I had to replace all of mine with hex bolts.

 

do not forget , JUN are milled and one peice , if your cam if regrind they add material then grind it down, theyre not as strong or solid, just save your money and get the real thing IMO, i mean once you buy a reground and find its not the same your out the money and have to sell and get what you wanted to start, so in the end i find it cheapoer to get the real thing first, pertaining to internal engine mods here

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PreludeRacer023 &raquo;</TD></TR><TR><TD CLASS="quote">do not forget , JUN are milled and one peice , if your cam if regrind they add material then grind it down, theyre not as strong or solid</TD></TR></TABLE>

JUN uses solid blanks that are ground to spec...

Regrinds dont use added material... Material is removed from the bottom of the lobe which moves the centerline of the comshaft up a little higher, that is where lift is gained... Than, the top portion or, "peak" of the lobe is reshaped...

Adding material to an OEM core is refered to as "hard welding"... This is when material is added to the lobe, reshaped and then heat treated...

 

Can I use stock valvetrain to run Jun cams? I won't rev over stock limit so I wonder if this would work.

Besides I have been running Type S cams with stock valvetrain for over 4 years, no problem what so ever.

 

Rick S are you in any way associated with honda...
for info.

 

Those with JUN cams:

Does your engine makes ticking sound from these cams? Heard a few ppl said that JUN cams will make weird noise, is that true?