Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Blazer72- How did you get 530hp?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Shawn, Jan 29, 2001.

  1. Shawn

    Shawn 1/2 ton status Premium Member Author

    Joined:
    Feb 17, 2000
    Posts:
    1,753
    Likes Received:
    5
    Location:
    5280'
    I'm thinking about buying a Camaro with a small block. I'd like to know the specs on your engine (cam, heads, valves, CR, etc) so I can get the same results when I do the motor. You said you got 530 HP 490 lbs of torque from a TPI 406. Do you have any actual dyno tests of your engine? Most SBC strokers I see are around 400 horsepower and 420ft lbs. of torque using a 9.5:1 CR. Whats your secret?

    Shawn
    87 K5
    few mods[​IMG]
    <A target="_blank" HREF=http://www.off-road.com/chevy>http://www.off-road.com/chevy</A>
     
  2. blazer72

    blazer72 1/2 ton status

    Joined:
    Apr 13, 2000
    Posts:
    939
    Likes Received:
    0
    Location:
    KCMO
    Re: Blazer72- How did you get 530hp? *DELETED*

    Post deleted by blazer72
     
  3. ken

    ken 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    1,244
    Likes Received:
    0
    Location:
    Anaheim, CA
    All I gotta say is "WOW"!!! 530 HP on a 30 under cast iron crank!! WOW!!!!!

    ken
     
  4. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,163
    Likes Received:
    1,360
    Location:
    E-town baby!
    490 lb/ft of torque and 530 hp AT THE WHEELS!!!!! All I can say is holy [censored]!

    Rene

    [​IMG]
     
  5. Shawn

    Shawn 1/2 ton status Premium Member Author

    Joined:
    Feb 17, 2000
    Posts:
    1,753
    Likes Received:
    5
    Location:
    5280'
    Thanks for the info Ken. If you ever come across the cam #, just let me know. I assume the roller cam is a hydraulic Comp Xtreme Energy (not a Magnum). If it's the largest of the Xtreme roller cams, that would make a XR300HR which has a 562/580 lift, 300/306 duration and RPM range of 3200-6200 which seems too big. It sounds like it might be a XR288HR but I would like to know for sure. Here's a link to Comps page of those cams:
    <A target="_blank" HREF=http://www.compcams.com/catalog/058_059.html>http://www.compcams.com/catalog/058_059.html</A>
    I'm also using a Comp Xtreme roller in my BBC. Those rear wheel figures are very impressive considering it has to spin the trans, doubler, rear axle and tires. If you did a flywheel dyno, you could probably add another 50hp to that. I'm not even sure my stroked 496 BBC can do that! How do you like the Electromotive crank trigger. I'm thinking about going to Electromotive eventually. How's the 11.5:1 compression on prem. pump gas? Do you get any detonation? Does the Electromotive have any knock retard capabilities? Sorry for all the questions.

    Shawn
    87 K5
    few mods[​IMG]
    <A target="_blank" HREF=http://www.off-road.com/chevy>http://www.off-road.com/chevy</A>
     
  6. Shawn

    Shawn 1/2 ton status Premium Member Author

    Joined:
    Feb 17, 2000
    Posts:
    1,753
    Likes Received:
    5
    Location:
    5280'
    Ignore my comment about the Xtreme cam. I didn't see the "4x4" cam part so this means it's not a Xtreme. I'll try to find the part # of 4x4 cam on Comps site. If you come across let me know.

    Shawn
    87 K5
    few mods[​IMG]
    <A target="_blank" HREF=http://www.off-road.com/chevy>http://www.off-road.com/chevy</A>
     
  7. Blaze

    Blaze 1/2 ton status

    Joined:
    Aug 28, 2000
    Posts:
    3,285
    Likes Received:
    0
    Location:
    Raleigh, NC
    Hey blazer72, wanna build me an engine??? Hahaha

    [​IMG]<A target="_blank" HREF=http://www4.ncsu.edu/~brschoch>http://www4.ncsu.edu/~brschoch</A>
     
  8. Is that with the no2 on?I'ld like to see some dyno sheets on that run.Hell if I got that kind of hp out of a tpi small block I'ld take video's of that!! LOL
     
  9. blazer72

    blazer72 1/2 ton status

    Joined:
    Apr 13, 2000
    Posts:
    939
    Likes Received:
    0
    Location:
    KCMO
    Re: Blazer72- How did you get 530hp? *DELETED*

    Post deleted by blazer72
     
  10. Donovan

    Donovan 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    524
    Likes Received:
    0
    Location:
    Arvada, CO
    What does this camaro run in the 1/4mile? 60 foot times would be great also if you have them.



    Donovan
    <A target="_blank" HREF=http://www.rustbucket.coloradok5.com>http://www.rustbucket.coloradok5.com</A>
    Bigger is Better
     
  11. Shawn

    Shawn 1/2 ton status Premium Member Author

    Joined:
    Feb 17, 2000
    Posts:
    1,753
    Likes Received:
    5
    Location:
    5280'
    So the Electromotive does have spark retard capabilities. I think I found your Comp 4x4 cam in the Northern Auto Parts catolog but it wasn't a roller:
    NA Part # 12-243-3
    Duration @ 50: 226° 234°
    Lift: 480 .498
    RPM: 1800-6000
    Does that sound right?

    I here you on the money! My current BBC is one big money pit!

    Donovan-
    This engine is in Kens Blazer, not a Camaro. I was just thinking about buying one.

    Shawn
    87 K5
    few mods[​IMG]
    <A target="_blank" HREF=http://www.off-road.com/chevy>http://www.off-road.com/chevy</A>
     
  12. bbblazer

    bbblazer Registered Member

    Joined:
    Jan 29, 2001
    Posts:
    10
    Likes Received:
    0
    Location:
    Denver Co and up
    I got 350 hp from a briggs and statton
    before it blew up
     
  13. bbblazer

    bbblazer Registered Member

    Joined:
    Jan 29, 2001
    Posts:
    10
    Likes Received:
    0
    Location:
    Denver Co and up
    I got 350 hp from a briggs and stratton
    before it blew up
     
  14. blazer72

    blazer72 1/2 ton status

    Joined:
    Apr 13, 2000
    Posts:
    939
    Likes Received:
    0
    Location:
    KCMO
    Re: Blazer72- How did you get 530hp? *DELETED*

    Post deleted by blazer72
     
  15. ken

    ken 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    1,244
    Likes Received:
    0
    Location:
    Anaheim, CA
    Hmmmm...most stock 400 cranks are forged?? How about GM NEVER EVER made a stock 400 forged steel crank. ALL OF THEM were cast iron, and turning one .030" under is way too scary even in a stock application...I can't imagine pushing lots of HP and torque and have a 30 under cast crank live. It's just a grenade waiting to go off. Course, that's my opinion...to each his own. Me, I'll stick with my fat-block Chevys.

    ken
     
  16. blazer72

    blazer72 1/2 ton status

    Joined:
    Apr 13, 2000
    Posts:
    939
    Likes Received:
    0
    Location:
    KCMO
    Well thats new to me and something that I have heard from guys befor better go check the books though I have had 6 400 that came with forged cranks. 3 that had cast cranks, I gess it like do 72 blazers have aplace in the dash for a radio No but some do why no one kind ansser, As for 30 under its not the best and I will never take a 400 block over 30 over but there are a lot of 400 cranks that have been turned 200 under on the mains to uses them in 350 blocks as a 383 soooo though i dont like 30 under I'm not lossing much sleep over this! The only 400 I have killed was due to loss of oil going down hill! ( I use a 7 qt pan with trap doors now)
    If I wanted to pay the price then I to would use the big block! If I was to start over I would use a big block too.

    I understand the jeep thing I drive a BLAZER!!

    Ken
     
  17. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    OK, my BS meter just pegged so hard that the needle bent. [​IMG] What gear was your tranny in when this dyno test was run? I don't think it was at a 1:1 ratio. Figuring the typical 20% driveline loss, a 530 HP@4200 RPM reading would mean around 635 HP at the flywheel. Not from a naturally aspirated, non-nitroused small block Chevy. I'm thinking a lower tranny gear (or low range in the transfer case) was used to multiply the torque readings and fool the dyno.

    Holley sets up chassis dynos at various hot rod events around the country each year. They invite all comers to strap their cars to it and find out how much power their cars really make. Guys with 500 cubic inch engines that have head ports you can damn near pass your fist through and cams that barely ever shut the valves don't make 500 HP at the rear wheels in direct drive. And none of them are making the really big numbers at 4200 RPM.

    Check out the dyno graph for one of John Lingenfelter's 383's at <A target="_blank" HREF=http://www.lingenfelter.com/packages/383lt1.htm>http://www.lingenfelter.com/packages/383lt1.htm</A>. This guy builds some of the baddest Chevies on the planet and his 383 is just making 300 HP at 4200 RPM, at the flywheel. It maxes out at 440 HP at 6500 RPM.

    As Paul Harvey would say, "What's the rest of the story"? [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  18. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,975
    Likes Received:
    189
    Location:
    Roy WA
    Not saying anything one way or another, but want to see an awesome article on a SBC buildup, check this out http://yeagerd.home.mindspring.com/index2.html
     
  19. I just want to see the dyno slips.I won't coment about the rest .I might buy the gear reduction idea though.
     
  20. Donovan

    Donovan 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    524
    Likes Received:
    0
    Location:
    Arvada, CO

Share This Page