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    • Horsepower Freaks offering built/sleeved S54 shortblocks with options up to 1200 horse capacity

      Horsepowerfreaks (HPF) has released pricing and details on their S54 shortblocks. There are 4 options whose full specs are listed below. The first one offers a slight overbore, second is an OEM bock, third is a Darton sleeved underbored used block, and the fourth is a Darton sleeved underbored new OEM block with 1200+ rwhp capacity. Great to see these options from HPF.

      Option 1 (900rwhp - .020 Over Bore) $7,495.00
      • Send your used short block complete with crank, rods and pistons to us or pay a $2500 core charge
      • Strap your block securely to a pallet
      • It should be a motor that has never been bored or honed
      • We will magnaflux it and check for cracks when we receive it
      • We will build it to HPF specifications at .020" over bore

      Option 2 (1000rwhp - STD Bore) - New OEM Block $9,995.00
      • Securely Ship your used crankshaft to us or we will sell you one for $900
      • Greater wall thickness than option 1 from not having to bore cylinder walls
      • Greater head sealing surface area between cylinders
      • Built to HPF specifications at STD bore

      Option 3 (1200rwhp+ - .040 Under Bore) - Darton Sleeved Used Block $10,495.00
      • Send your used short block complete with crank, rods and pistons to us or pay a $2500 core charge
      • We will magnaflux it and check for cracks when we receive it
      • Darton sleeves are 4 times stronger than the OEM factory cylinder walls
      • Cylinder wall thickness increased drastically
      • Head sealing surface area increased significantly
      • Built to HPF specifications at .040" under bore

      Option 4 (1200rwhp+ - .040 Under Bore) - Darton Sleeved New OEM Block $12,995.00
      • Securely Ship your used crankshaft to us or we will sell you one for $900
      • Darton sleeves are 4 times stronger than the OEM factory cylinder walls
      • Cylinder wall thickness increased drastically
      • Head sealing surface area increased significantly
      • Built to HPF specifications at .040" under bore




























      This article was originally published in forum thread: Horsepower Freaks offering built/sleeved S54 shortblocks with options up to 1200 horse capacity started by Sticky View original post
      Comments 227 Comments
      1. lughed's Avatar
        lughed -
        Jealousy and envy is a mofo like a mofo.
      1. GG///M3's Avatar
        GG///M3 -
        I see a lot of jealousy over a e34 here. Thus far e46's can't break into the 10's with hpf kits never mind 9's with stock drive train. ROFL
      1. ccsykes's Avatar
        ccsykes -
        Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
        I see a lot of jealousy over a e34 here. Thus far e46's can't break into the 10's with hpf kits never mind 9's with stock drive train. ROFL
        You can buy a used E34 M5 for half what an E46 M3 goes for, I've seen them as low as $5,800. Same goes for engine builds.. half the price if not more. There is a more established aftermarket. The car model goes back to 1989 so there is a considerable amount of trial and error that has already been done that a DIY'er can use. The biggest obstacle for the E46 M3 model right now is cost and a relatively young aftermarket.
      1. Stahlgrau's Avatar
        Stahlgrau -
        What's up with the E34 ><E36><E46, etc. bull$#@!? Is this high school? Grow up.
      1. lughed's Avatar
        lughed -
        Click here to enlarge Originally Posted by ccsykes Click here to enlarge
        You can buy a used E34 M5 for half what an E46 M3 goes for, I've seen them as low as $5,800. Same goes for engine builds.. half the price if not more. There is a more established aftermarket. The car model goes back to 1989 so there is a considerable amount of trial and error that has already been done that a DIY'er can use. The biggest obstacle for the E46 M3 model right now is cost and a relatively young aftermarket.
        Whats funny is GG is not even speaking of an e34 M5. Its and m50 base engine. Anyway i dont see any jealousy being shown towards it.
      1. lughed's Avatar
        lughed -
        Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
        I see a lot of jealousy over a e34 here. Thus far e46's can't break into the 10's with hpf kits never mind 9's with stock drive train. ROFL
        Thus far there are a million aftermarket supported products for the 90's cars for both engine and chassy. There is only realy 1 or 2 for the e46 and the m50 base engines just recently broke 9's here in the US after what near 20 years. Dont be so biased. Enough said
      1. lughed's Avatar
        lughed -
        Click here to enlarge Originally Posted by Stahlgrau Click here to enlarge
        What's up with the E34 ><E36><E46, etc. bull$#@!? Is this high school? Grow up.
        I agree.

        A lot of growing up to do for some people. Until a halfway decent/believable reason/excuse for all the hate on HPF can be given we can only assume its do to jealousy n envy. This is old, boring, and enoying everytime a HPF thread is started the leaches come out and attempt to suck it dry.
      1. nickr519's Avatar
        nickr519 -
        Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
        You're all wrong
        I hold the opinion that you should probably just keep your e-thug mouth zipped tightly until you get some kind of actual times from your car; thumping your chest with your pump gas non-vanos peak horsepower measure all the time gets as old as your anti-HPF fanboyism, twice as quickly. If I wanted to read about dyno-princesses... nevermind I don't.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ccsykes Click here to enlarge
        You can buy a used E34 M5 for half what an E46 M3 goes for, I've seen them as low as $5,800. Same goes for engine builds.. half the price if not more. There is a more established aftermarket. The car model goes back to 1989 so there is a considerable amount of trial and error that has already been done that a DIY'er can use. The biggest obstacle for the E46 M3 model right now is cost and a relatively young aftermarket.
        Very well said although it is time for the E46 to start coming into its own now regarding the aftermarket and performance.
      1. DakarE36's Avatar
        DakarE36 -
        Click here to enlarge Originally Posted by Commanderwiggin Click here to enlarge
        The car made 1022whp...therefore that would be 1206bhp...given an approx 18% drivetrain loss...percents bro...geez.
        Maybe you missed this quote from Jason@ProEFI Click here to enlarge

        Click here to enlarge Originally Posted by Jason@proefi Click here to enlarge
        I have received several emails asking about engine horsepower numbers. As a community, it is a really good idea for everyone to get on the same page with dyno numbers so everyone can readily compare results. If you don't engine dyno your car...don't post engine dyno numbers... you can't guess or even estimate remotely accurately what those numbers would be. I have had engines on the engine dyno, and put them directly in the car, and there is NO direct percentage correlation. In other words, you can't say there is a 15% drive train loss. There may be at say 300hp, but at 900hp, the drivetrain doesn't continue to soak up 15% of your horsepower. Any dyno numbers you see posted by us will be rear wheel hp numbers, unless specifically stated that the engine was on an engine dyno.
      1. DakarE36's Avatar
        DakarE36 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Very well said although it is time for the E46 to start coming into its own now regarding the aftermarket and performance.
        as soon as they start tuning vanos, I think we'll see some really incredible mid-range numbers. There is absolutely no reason a turbo e46 M3 torque curve should look like one from a Supra.
      1. GG///M3's Avatar
        GG///M3 -
        Click here to enlarge Originally Posted by DakarE36 Click here to enlarge
        as soon as they start tuning vanos, I think we'll see some really incredible mid-range numbers. There is absolutely no reason a turbo e46 M3 torque curve should look like one from a Supra.
        Plus 1 more torques would be nice.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DakarE36 Click here to enlarge
        Maybe you missed this quote from Jason@ProEFI Click here to enlarge
        This is what I was looking for, thank you.
      1. lughed's Avatar
        lughed -
        Click here to enlarge Originally Posted by DakarE36 Click here to enlarge
        Maybe you missed this quote from Jason@ProEFI
        Ok but it doesnt explain what is causing the percentage increase. Driveline temps increasing with HP? I wouldnt think so. Maybe with speed but not bhp.

        Also is this quote referring to the same car tested at different hp levels or is it referring to two different car makes tested at the same hp level?
      1. DakarE36's Avatar
        DakarE36 -
        Click here to enlarge Originally Posted by lughed Click here to enlarge
        Ok but it doesnt explain what is causing the percentage increase. Driveline temps increasing with HP? I wouldnt think so. Maybe with speed but not bhp.

        Also is this quote referring to the same car tested at different hp levels or is it referring to two different car makes tested at the same hp level?
        Same make and model--one stock or close to it, and one (obviously) highly modified. This quote is from the FI section of E46Fanatics and is clearly directed at E46 M3 dyno's.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by lughed Click here to enlarge
        Ok but it doesnt explain what is causing the percentage increase. Driveline temps increasing with HP? I wouldnt think so. Maybe with speed but not bhp.
        I would like to know what is causing the % to shift as well. People have for the most part discussed drivetrain losses in fixed % numbers but what he says does make some sense. I just would like further clarification.
      1. DakarE36's Avatar
        DakarE36 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I would like to know what is causing the % to shift as well. People have for the most part discussed drivetrain losses in fixed % numbers but what he says does make some sense. I just would like further clarification.
        People or experts? There is a difference.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DakarE36 Click here to enlarge
        People or experts? There is a difference.
        I meant it as stated, just people in general terms.
      1. Sorena's Avatar
        Sorena -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I just would like further clarification.
        I sound like a teacher here , it's annoying i know so i keep it short.
        estimating the % of power loss is really hard , first of all you have to know everything about drivetline pieces , like the density , dimension , weight , heat capacity ...
        then you calculate the Inertia of the Rotating components (it's a really big headache).....
        .
        .
        .
        .
        .
        you may estimate the % of power loss for a specific RPM and that's not even accurate, it really depends on the driveline materials and their specifications. for example in an Irony shaft, after a specific RPM which creates a specific amount of heat (it depends on the shaft's mass), instead of losing like %10, you will lose %15 because the length of shaft will be at it's maximum.
        So saying in a FR car you can get crank HP by adding %15 to WHP number is pretty wrong, it really depends on material properties in driveline because in different conditions they act very different.

        are you interested in more details ? I'm sure you are not !
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sorena Click here to enlarge
        are you interested in more details ? I'm sure you are not !
        Umm, sure, more details, please.