1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Different Type R cams in B16A

Discussion in 'Engine Building' started by CAFROG, Jul 14, 2009.

  1. CAFROG

    CAFROG Honda Minion VIP

    Messages:
    4,417
    Likes Received:
    154
    Joined:
    Apr 5, 2009
    Location:
    NOR-CAL
    I have seen pictures of how to tell the difference but was wondering about ITR cams

    I know about 97 spec and 98 spec

    Is the '01 ITR cams different or '98 spec? Found some that I might look into buying then sitting on
    them until I get at least some springs. Some say you need the lost motion assembly for
    the type r too b/c the B16's are not good enough (maybe not firm enough?). Some say
    you only need the cams and springs....others have stated that you only need the intake
    springs and take your B16A intake springs and move them to the exhaust.

    Please feel free to state what yo've heard...or, preferably, felt and been witness to.
     
  2. CAFROG

    CAFROG Honda Minion VIP

    Messages:
    4,417
    Likes Received:
    154
    Joined:
    Apr 5, 2009
    Location:
    NOR-CAL
    Serious? Everyone is Stumped so far?

    I wanna know opinions on what is the minimum needed to make the type r cam conversion good to go...at 9k rpm's

    I hear way too many differing opinions
     
  3. jamesA

    jamesA Well known pissed off telephone guy VIP

    Messages:
    16,129
    Likes Received:
    1,020
    Joined:
    Aug 10, 2003
    If you want to upgrade to type r cams you should most likely replace the valvetrain with what can handle those types of RPMs as well. Then there's the tuning so your engine itself can handle the RPMs. There's no point to getting an engine to spin up there unless you're making the power up there.
     
  4. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,456
    Likes Received:
    2,117
    Joined:
    Nov 18, 2007
    Location:
    CT
    01's are slightly larger than 98 spec.

    you will need upgraded (beyond itr) springs/retainers to turn 9000 rpms. itr's are only good for 8500.

    frankly, you won't make power in that last 500 rpm anyway, as the itr cam doesn't.
     
  5. CAFROG

    CAFROG Honda Minion VIP

    Messages:
    4,417
    Likes Received:
    154
    Joined:
    Apr 5, 2009
    Location:
    NOR-CAL
    Thanks for you opinion. Hoping to hear from others to agree or disagree that you need all that stuff....and I'm still wondering if my lost motion assembly (B16A) is fine. I never heard of guys doing that with aftermarket springs/cams/retainers/etc.
     
  6. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

    Messages:
    6,148
    Likes Received:
    99
    Joined:
    Feb 28, 2003
    Location:
    Moving back West...
    I had 01 spec ITR/CTR cams in my b16 with the stock valve train. it's ok as long as you stick with the stock redline. My loss motion assemblies were perfectly fine. IMO, if you want to take advantage of the entire power band of these cams, get the ITR/CTR springs, retainers, and get tuned along with the rev limit set higher to where the cams make peak power.
     
  7. CAFROG

    CAFROG Honda Minion VIP

    Messages:
    4,417
    Likes Received:
    154
    Joined:
    Apr 5, 2009
    Location:
    NOR-CAL
    Yeah....sounds like 8.5K is the spot. I just found out that a GSR intake springs are the same part # as the Exhaust springs for ITR. Don't know if this applies to B16A's but it just might. The retainers can be purchased new OEM online. So. if I can get away with it, that means I only need type r intake springs, both cams, new retainers, adj sprockets and I have a local guy who makes ECU's with base maps for a mod'ed B16 like that (rough;y set fuel/air ratio)....then off to dyno tweak it...yea thats not much...right ($$$). I think the stock injectors should be ok and my Si fuel pump should be ok too....hopefully.
     
  8. CAFROG

    CAFROG Honda Minion VIP

    Messages:
    4,417
    Likes Received:
    154
    Joined:
    Apr 5, 2009
    Location:
    NOR-CAL
    Bump for more opinions
     
  9. vtecsir1

    vtecsir1 Senior Member

    Messages:
    3,313
    Likes Received:
    17
    Joined:
    Dec 5, 2002
    Location:
    Orlando, FL
Verification:
Draft saved Draft deleted

Share This Page