Well, this was fun.. Several months ago Jim Byers (offbrandracing) saw an add on the board here for a Vortec Supercharger setup. I had built him a block girdled 464 ci motor back in 2003, that made 625 HP. His question was could we use this setup on his motor, and what would it take to make it live. I think "prayer" was my smart ass answer, but after a while, we got down to it, and determined that we would take a shot at it. Figured by now I knew enough voodo tricks to keep one alive at 800+ hp, which was our original goal. We "overachieved" on this one. Here's the specs.. 76 455 Block- Cryo tempered, girdled, tall filled water jackets- 4.360 bore Crank- 76 455 Stocker, .020/.020 Pistons- TSP/Diamond custom blower piston Rods- TA Sportsman Forged Compression Ratio- 8.0-1 Cubic inch- 466 Heads- Early TA STG 2 SE, 320/250 cfm at .500 Oiling- all block mods, TA timing cover w/ HV pump, bypass line, SRE oil pan- 100+ psi oil pressure at rpm Cam- Custom TSP/TA solid blower grind- Idles @ 800 rpm with 12" Vacuum Valvetrain TA 1.65 Rollers- TA solid lifters, TA hardened pushrods Intake- TA SP-1 intake- ported Billet Timing chain SFI Romac balancer SFI JW flexplate Carb- CSU 850 cfm blow thru double pumper Holley Supercharger- Vortec V7 YSI blower, cog belt drive- putting out 16.8 psi boost at 6300 rpm Meth Injection- AIS injection system- dual nozzel, injecting before and after Supercharger Here are some pics of the build Power without the blower.. not bad for a small cam and 8-1 compression.. Now, the blower was advertised to make 10 psi.. well it did, at about 4600 rpm.. but at rpm, it made 16+... we snuck up on it, got where we were happy, and after a 975 Hp pull to 6000, we figured we would see if we could get 4 figures out of it.. And we did. Here's a Vid of the 1000 HP pull. <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/6ls13gm-QAk?fs=1&hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/6ls13gm-QAk?fs=1&hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object> Jim will be getting a bigger pulley to get that boost down to where we wanted it, but it was neat to see that 1000 number with a stock block and crank. If it had an alum block and billet crank, we could have made more power yet, as it's no where near done.. check out the HP curve on the graph.. it's not laying over yet. 1050...1100?.. hard to say what it would be capable of, but at 6300 and 1000+ HP, with a stock block, oiling system, and crank, my butt was puckered about as tight as possible.. :laugh: Fun project.. thanks for letting me work with you on it Jim. JW
:shock: :shock: ........................Thats bad A$$..........:bglasses: Can I send my motor back..................:grin: That blower belt is scary how it flops around.
That is the only dyno pull video that actually made me laugh..(in a :beers2:good way). Regards, 455NGLIDE
A special thanks goes out to Jim Weise!!!! :beer Without his skills, knowledge and the best darn customer service I have seen this project would have never gotten off the ground. Who in the world would have thought we could keep this thing together for a 1000hp dyno pull. We both thought the crank was going to bounce off the floor anytime!!! Anyway time to pull back some on the boost and see if we can get this thing to live. I hope everyone enjoys the video as much as I did. More to follow:3gears: Happy Boosted Buick!
Amazing to say the least. Out of curiosity why the immediate shut down at the end of the pull? Did it die or was it shut off. Great video thanks for posting, I would have liked to have been there to watch. Bob H.
Yes this is going in my street/strip car. We believe we can do light cruising and driving to the track but will have an oil temp gauge to watch it....if it gets too hot then i will install an oil cooler to keep the temps in check. We stopped the pull at 6300 because that is where the cam was good to NA and we already hit the 1000 + level......no sense in blowing up on the dyno for a few extra ponies to brag about.
nice pull a couple things. Why didn't you have the water pump turning? What was the hose floping behind the blower? (BOV valve ?) Hard to tell but if that was the BOV valve, it looked like it was blowing as the RPMs were climing (it was raising). So I can't tell when it closed. I found on mine the sooner I can get it to close, the less likely I am to blowing the tires off. I wondered about the belt also. Although I have an eight rib belt (not the cog type) mine flops only on the long side (from the crank to the blower unit). Will the flopping help the harmic balancer?
Why did the engine stop and shut down so abruptly? I can't believe that supercharger doubled the freaking horsepower just about.
We will have to wait for JW to answer the water pump deal. The you see on the side is connected the bypass/bov. The belt issue we will have to look into as we are not sure. The pulled end at the preset rpm limit set by the dyno operator. That is where we decided to cut off the pull or what we felt was a safe limit.
I think you guys are seeing where JW edited the video.....the motor went back to idle after the pull....in fact we did some additional testing on pump fuel and the water/meth system after the pull you see. Maybe Jim can explain it better than me when he has a chance.
