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RPM..on ctr cams

Discussion in 'Engine Building' started by shaneb, Jul 7, 2003.

  1. shaneb

    shaneb Member

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    where do you feel the power of the ctr cams on the prm range? I going to put ctr's in my 91 hatch w/b16a.... but at the same time leave the stock contianers and springs...(for now).. what would be a safe red line at? and would the ctrs give me any power , more than the stock ones at 4 -8 or 8 1/2?
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    stock springs i wouldnt go any higher than normal redline
     
  3. JDMilan

    JDMilan Senior Member

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    8200rpms with oem B16 springs and retainers is highest with CTR intake/ITR exhaust.

    9000rpms is where the CTR intake/ITR exhaust combo make power until.


    nothing higher, if you want higher go with what options I posted in the board up top.




    Milan
     
  4. pissedoffsol

    pissedoffsol RETIRED

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    and mind you, 9k will need a cam gear tune to give a little more overlap.
     
  5. vtecsir1

    vtecsir1 Senior Member

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    i thought those cams only made power until about 8500-8600. ive been looking for dynos of the ctr against other vtec cams.
     
  6. DA69

    DA69 Senior Member

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    jdmilan......
    i have a b16a head and i wanted to place skunk ti retainers, type r valves and valve springs. would this be enough to rev to say 9000 with itr cams.
     
  7. pissedoffsol

    pissedoffsol RETIRED

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    stock cam gear setting, yes. which is why i said above. you need to dial in more overlap on the cam gear... liek +3 intake, +2 exhaust or something to get it to make power that high, but doing so sacrifieces mid and low end power.
     
  8. pissedoffsol

    pissedoffsol RETIRED

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    if you're going to do the work of replacing the valve springs, you might as well do it right, and go with toda or jun or skunk2 springs as well. ITR's aren't that stiff.... and frankly, while it WILL hold 9k every now and again, i'd feel much more secure with a stronger and longer spring in there to reduce the risk of floating a valve.
     
  9. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    ive been reading lots of reviews on the jun valvetrain products and while their cams are badass their springs suck... most people with jun cams are running toda springs because they hold up better
     
  10. JDMilan

    JDMilan Senior Member

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    I agree with pissed that if you want to run for now oem R cams then with adjustment you can max out power till 9000rpms. If you plan on going with oem R cams now and then you really want to upgrade in the future then upgrade to a much stiffer spring and tit. retainer combination so that you won't need install then take out and then reinstall the springs and retainers.


    Milan
     
  11. B16

    B16 Super Moderator VIP

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    no, i had cam gears with my ctr's and they were dropping off past 8400
     
  12. JDMilan

    JDMilan Senior Member

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    just saw a dyno on importreview with ctr cams making power up till 8800rpm but they started to drop off a little just before that.


    Milan
     
  13. pissedoffsol

    pissedoffsol RETIRED

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    *shrug* every motor responds differently too... cams only go so far
     
  14. JDMilan

    JDMilan Senior Member

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    this is true also ^



    Milan
     
  15. pills_PMD

    pills_PMD Super Moderator

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    mine loose power at 8k w/ my lsvtec and they lost power at 8250 with my b16

    click my link in my sig for dyno charts
     
  16. deth101

    deth101 Senior Member

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    crower makes a roller-follower system that seems very impressive all around
     
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