IPS recommended OEM valvetrain - K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum
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Old 03-31-2011, 10:26 AM   #1
Mistertwo
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Default IPS recommended OEM valvetrain

I am getting ready to order this setup and just want to make sure I've got everything covered.

16 - valve seals - 12210-PZ1-004 & 12211-PZ1-004 (8 of each)
16- yellow outer spring - 14761-PCX-003
16 - red inner spring - 14752-PRB-A01
32- valve cotter - 14781-PRB-A02

I've already got the 14765-PRB-A01 retainers on my Si which will only have about 20k miles on the car when I get everything installed. Am I missing anything here?
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Old 03-31-2011, 10:39 AM   #2
m_shake
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Default Re: IPS recommended OEM valvetrain

14775-PRB-A00, this is the spring seat for dual springs.
http://www.acuraoemparts.com/delray/...All&vinsrch=no
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Old 04-01-2011, 08:46 AM   #3
jellybean
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Default Re: IPS recommended OEM valvetrain

Quote:
Originally Posted by Mistertwo View Post

16 - valve seals - 12210-PZ1-004 & 12211-PZ1-004 (8 of each)
16- yellow outer spring - 14761-PCX-003
16 - red inner spring - 14752-PRB-A01
32- valve cotter - 14781-PRB-A02

I've already got the 14765-PRB-A01 retainers
what is this valvetrain good for? how big of a cam could be used?
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Old 04-01-2011, 10:33 AM   #4
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Default Re: IPS recommended OEM valvetrain

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what is this valvetrain good for? how big of a cam could be used?
IPS K2's are what it is recommended for.
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Old 04-01-2011, 10:44 AM   #5
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Default Re: IPS recommended OEM valvetrain

^are those stg 2s?
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Old 04-01-2011, 11:06 AM   #6
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Default Re: IPS recommended OEM valvetrain

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Originally Posted by jellybean View Post
^are those stg 2s?
They are ips's entry level cam(well they used to be,now they have the K2 jr's)...
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Why are you lol'ing?

You cannot mock some one for being fearful of an oppressive government when you are afraid of walking the streets with legal firearms around.
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I can't be the bad guy if you are the bad guy. Two bad guys is too many bad guys. :P
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Old 04-01-2011, 11:36 AM   #7
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Default Re: IPS recommended OEM valvetrain

Quote:
Originally Posted by m_shake View Post
14775-PRB-A00, this is the spring seat for dual springs.
http://www.acuraoemparts.com/delray/...All&vinsrch=no
Thanks, that was one part I was wondering about but didn't see any mention of it anywhere I had checked.
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Old 04-01-2011, 11:45 AM   #8
m_shake
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Default Re: IPS recommended OEM valvetrain

Yea, I was hoping to not have to change the seats but stockers are only for single springs
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Old 10-28-2011, 12:11 PM   #9
reid1980
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Default Re: IPS recommended OEM valvetrain

For everything its $320 shipped. Stuff gets expensive but I guess you cant beat oem reliability
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Old 10-28-2011, 07:59 PM   #10
nikos
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Default Re: IPS recommended OEM valvetrain

There are a lot of benefits in running aftermarket springs especially with aftermarket camshafts.

Cams and springs are rarely matched perfectly unless engine builders are willing to pay $100 -$200 per spring for starters so it is always a compromise of mass produced springs.

So if you are running a cam that calls for 80 psi for example, if you were to test 100 springs, you would see 75-85 range

Its a good idea to run a stiffer spring for performance because at 9000 RPM, with OEM springs there is real communication between cam and spring

So if you are going to get into the trouble of changing springs, I would go with aftermarket instead for a good chance on making gains vs what you had before. Oem has a low rev limit so no matter how you mix or match the OEM springs they will never match the power of properly selected valvetrains for aftermarket cams

For your cams, I would go with these Supertech Part Numbers


springs part # SPR-H1021D
Retainers part# RET-K20A2/T2
Valve Lock part # KPR-5.5/7A
Seats Locator part# SEAT-H1020DS

Good luck
Nikos
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Old 10-29-2011, 12:34 AM   #11
RoSSiRiDeR
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Default

Get some new stem seals too from supertech, 8 exhaust and 8 intake.
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