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300rwkw n/a ls1 with cam only + bolt ons + auto... possible & streetable?

Discussion in 'LSx Development and Modification' started by sly_gen3, Apr 29, 2010.

  1. sly_gen3

    sly_gen3 New Member

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    Hey guys just wondering if anyone has had experiance with big cams in an ls1 street car and what power is possible to acheive. I have an ls1 with 4200 rpm stall and manualised auto and will be getting 3.9 diff gears. With basic bolt ons like 1 7/8 extractors hi flow cats and twin 2.5" exhaust, underdrive kit and otr intake etc. Would 300 rwkw be an unreasonable figure to acheive with for example a GMM Turbo killer cam. cheers any help would be much appreciated.
     
  2. acarmody

    acarmody Donati..Whoa Green

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    Thats a big stallie for a 'streetable' car.
     
  3. GenReaper

    GenReaper Donating Member

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    Doubt you will get 300, maybe 270ish.

    If you did the heads, cnc Ported " Higgins Heads " and shaved with 3 angle valve seats and better compression ratio and a retune you may get close to 300.

    http://www.higginsraceheads.com.au/
     
  4. sly_gen3

    sly_gen3 New Member

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    I said streetable not daily haha. How much power would you lose through an auto compared to manual? Does any one have one of the GMM turbo killer cams in there ls1?
     
  5. sly_gen3

    sly_gen3 New Member

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    GMM-TK Custom Camshaft Turbo Killer 237/242 @.050 2500-6900. thats the cam specs
     
  6. GenReaper

    GenReaper Donating Member

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    Lobe separation comes into play as well, 112 / 114 ?
     
  7. GenReaper

    GenReaper Donating Member

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  8. acarmody

    acarmody Donati..Whoa Green

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    Powers not everything, 1/4 mile time is important too. Times are comparable, dyno runs aren't.
     
  9. sly_gen3

    sly_gen3 New Member

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    this is true with around 300 atw and a good set of slicks i would be hoping for mid to high 11s. Would you agree? As for the lobe separation im not too sure those specs are all it says on the website.
     
  10. acarmody

    acarmody Donati..Whoa Green

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    Hard to say, every car acts differently. One VT with 300rwkw might achieve 11's while another VT with exactly same power might get higher or lower.

    Basically what I'm trying to say is just get all the go-fast bit you are planning and put together but don't chase a number.

    And out of curiosity why don't you want to charge it? Would probably b cheaper.
     
  11. sly_gen3

    sly_gen3 New Member

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    Lookin at about $4-$5 grand too get set up with a cam probably around $10g minimum too charge it and get decent power.
     
  12. acarmody

    acarmody Donati..Whoa Green

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    Raptor Superchargers

    $4500-$4900 then a few hundred for a tune. Would be much easier than messing around with cams and stuff. And pretty much guaranteed around the 300rwkw mark.
     
  13. roy38

    roy38 New Member

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    If you want to go fast do your research and get bits that go together well, not just a mixture of off the shelf bits. If i were you I would be going down to a reputable performance shop and telling them what you want from the car (not a power figure) ie qt et, track, dyno queen, etc etc. You may get 300rwkw but with non compatible or unsuitable other parts you may not get it to the ground, or break the car, or run into ancillary problems such as having to upgrade fuel or intake or gearbox etc etc etc. At the end of the day going into a shop with your budget and a good idea of what you want will be best I'd say. Any good shop will be able to put together a RELIABLE and SUITED package for your needs in your budget.
     
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  14. LOWFLYR

    LOWFLYR New Member

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    spot on mate! excellent advice there

    and to give an example to the op question regarding drivetrain loss. using mine and a mates cars- two vx ss', almost the same exhaust & intake (otr & t/b) set-up exact same cams 226/231 110lsa, 1 is a 6spd, 1 is an auto with a 3000rpm hi stall. mine (the a4) made 244 on a mainline whilst the manual made 290 on the same machine
     
  15. nate-vy

    nate-vy New Member

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    im running 375rwkw and its easily streetable wouldnt bother as a daily as it would cost me a fortune but yeah 300rwkw is definately steetable
     
  16. Ray-915

    Ray-915 Squid

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    mine made 322rwkw manual twin plate clutch and a decent size cam and i was using it as an averyday driver for awile there and it was as easy as pie to drive. Hell even my missus drove it most of the time and she drives a lancer!

    Can i recomend putting in a stealth steup nitrous system? Just a 100hp wet shot would make the world of diffrence, and for some reason with nitrous what you put in seems to always come out at the tyres in around about the same figure. So you could quiet easly see another 70rwkw with just a 100hp shot....easy cheap power!
     
  17. sly_gen3

    sly_gen3 New Member

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    Thanks for all the advice guys. To LOWFLYER thats a big difference between the auto and manual i would of thought 20-30kws max thanks for clearing that up. In regards too running a big cam do you need to also upgade fuel system at the same time? I have also thought about a nitrous system which i will probably look into after i get cammed or whatever route i decide too take.
     
  18. Vt_vic

    Vt_vic New Member

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    you dont need 300rwkw to get a easy 11 or a big cam for that matter the 4200 hi stall is a good idea as i know of a few people who has the 2500 and all wish they went bigger and there all daily drivers
     
  19. sly_gen3

    sly_gen3 New Member

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    well i got the stall with the auto i bought so i might as well put it in:) has any one heard any news on these raptor super chargers? what kinda power are they makin?
     
  20. acarmody

    acarmody Donati..Whoa Green

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    If you look one their site, they are claiming 300rwkw, nothing but stock with thier charger, so far as I have read, Raptor can usually back up their numbers. Now..... a big charger cam with the boost, I'm betting you might need new undies, do it, you know you want too.
     

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