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two intake cams on a turbo ls?

Discussion in 'Forced Induction' started by saturn_boy96, Feb 27, 2004.

  1. saturn_boy96

    saturn_boy96 88 C1V1C 53D4N DR1V3R

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    i'm not trying to be stupid, but would it make sense to use an intake cam for the exhaust cam side on an ls head if your going with boost?

    i was just looking at the non-vtec b-series cam specs and i saw that crower's turbo cams have exactly the same specs on the intake and exhaust side. i was wondering if that would work for the stock cams?
     
  2. Iquark

    Iquark Senior Member

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    No, it wouldn't fit. It you want crower, then get crower, but don't try anything like this. If I remember correctly from my cam install, then the Intake cam is longer, and it is just a weird idea in the first place.
     
  3. saturn_boy96

    saturn_boy96 88 C1V1C 53D4N DR1V3R

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    i'll have to see but it didn't seem like my intake cams or exhaust cams were different lengths. whats weird about it? it would just make the engine a twin cam. with higher lift and slightly shorter exhaust duration. it seems like a good idea to me.

    oh well thanks for your input.
     
  4. foolish

    foolish Member

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    the lifts may be the same but the timing between the intake and exhaust cams is a lil differnt. Also with a good turbo set up you want the exhasut to open loger then then intake. It will cuz the turbo to spool faster which in turn force air into the head faster
     
  5. Del Slw

    Del Slw Member

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    the ends of the cams are differet. the intake side has a slot for the distributor, and it just wont work...try something else.
     
  6. pissedoffsol

    pissedoffsol RETIRED

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    it can't be done without extensive modification
     
  7. Iquark

    Iquark Senior Member

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    I knew I was right, they are a little different on the ends, and the intake is a tad bit longer!

    Ian
     
  8. saturn_boy96

    saturn_boy96 88 C1V1C 53D4N DR1V3R

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    darn, i thought i figured out something cool.
     
  9. CRX_B16B

    CRX_B16B Senior Member

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    I thought this thread would be dead by now! :wacko:
     
  10. saturn_boy96

    saturn_boy96 88 C1V1C 53D4N DR1V3R

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    this thread will never die.
     
  11. CRX_B16B

    CRX_B16B Senior Member

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  12. turbocrx2.0l

    turbocrx2.0l Member

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    Have not heard something this interested before,anyway nice try.Keep us posted with the dyno #######'s :D :D :D :D :D :D :D :D :D :D :D :D :D
     
  13. pissedoffsol

    pissedoffsol RETIRED

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    these are ctr's, but ls's are the same deal---

    [​IMG]
     
  14. turbo4dr

    turbo4dr Member

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    hey this is out of topic but never got to tell you turbocrx2.0l congrats on being in the sport compact mag
     
  15. saturn_boy96

    saturn_boy96 88 C1V1C 53D4N DR1V3R

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    hey, i'm bringing this thread back to life to let all of you h8r's out there know that two intake cams on an ls head will work. i know this because i did it last night on both an old b18a1 head from a 91 integra, and a head from a jdm b20b. :)
    [i will have more info on the similarities and differences of the two heads later.]

    i figure when i tune this setup for boost i will just have to run the exhaust side cam 181-182 degrees behind the intake side.

    and since everyone else is naming there projects mine is going to be project Ghetto Star.
     
  16. pissedoffsol

    pissedoffsol RETIRED

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    how did you cut a slit in the cam ?
     
  17. rudeludenotmeanthough

    rudeludenotmeanthough Senior Member

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    he used two intake cams... so the slit is already there an that side.
     
  18. rudeludenotmeanthough

    rudeludenotmeanthough Senior Member

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  19. sohcslammer

    sohcslammer Senior Member

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    Saturnboy I like your logic however you didn't take the time to REALLY think it out. Crowers cams are NOT the same lift at all as your stock LS cams. For all you know the crower turbo-cam lift might be closer in profile to the exhaust cam lift on the stock LS cams. You may very well be chocking off your engine. Or you may notice an increase power and shut us all up. The only way to tell is to take a motor that is ALREADY turboed, dyno it stock, switch cams, and dyno it again.

    I'm not trying to hate on you man, just pondering out loud really. But I really don't think it will make any power. I think you will lose HP. But let us know because my buddy is tc-ing his ls really soon.
     
  20. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    He was saying that the Crower cams had the same specs between intake and exhaust, not compared to the OEM cams. I don't know that using the intake cam on the exhaust side will help any... the OEM intake has 2 degrees less duration, but 15 thousandths more lift than the exhaust- so I guess putting the intake cam on the exhaust side might help.

    In any case, lots of the Nissan guys like to drop in two 91-92 exhaust cams on their KA24DEs for a cheap power boost. All they do is re-slot one of the cams to run on the intake side with proper indexing on the cam gear, and they're good to go. I'm sure you could do something similar with the B series cams.
     
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