Dirt track LS
03-27-2011, 07:47 PM
#24
The CT525 has been doing very well in the super latemodels from what I have been reading. I run a Big block modified here in new york and this year the 525 is anothe engine option that we can choose to run. We had one on the dyno the other day and with a nice set of tri-y headers, msd lsx ignition system and a jones pulley setup with a belt driven fuel pump/power steering pump combo the CT525 made just over 600 horsepower on the dyno. Not bad considering gm says that it is 550 horse from the factory. Depending on what kind of weight break you might get by running the 525 it might be competitive. Im interseted to see what they do here when it finally gets warm enough so we can race!!!
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Last edited by Rebob5; 03-27-2011 at 07:55 PM.
03-29-2011, 07:11 PM
#25
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200 lbs weight break with the CT525. That, and you get to use the 8" spoiler that the SPEC head and steel head/flat tappet guys get. Oh yeah, and the CT525 is the only engine that requires a specific RPM limit: 7500rpm.
04-02-2011, 12:56 PM
#33
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We plan on having our 402 on the track in a couple of weeks. The car it's going in is a brand new chassis with some different suspension configs that the driver is trying out. Starting the season with the old proven motor to get the car sorted out, then the LS goes in and hopefully kicks a lot of ***. Updates in a few weeks, USMTS is coming to town in late April, wanting to have the LS in for that show.
04-03-2011, 06:31 AM
#34
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Im not making 750, but mine is basic, stock crank, 3.622 lightened balanced, 4.005" bore-6.125" rod, 11.9:1, 248-254-106 (306-302) hydro roller morel lifters stock L92s ported GMPP, 4150 4 barrel carb, no dyno time yet, 26 deg timing 12.8:1 afr spins up to 8200rpm very rapidly and tonnes of low end. This cam works. My carb is a little small (purposely for better acceleration rates) and 1 3/4" headers. I am going to 1 7/8" APC and Pro Systems 4150.
04-03-2011, 06:35 AM
#35
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The CT525 has been doing very well in the super latemodels from what I have been reading. I run a Big block modified here in new york and this year the 525 is anothe engine option that we can choose to run. We had one on the dyno the other day and with a nice set of tri-y headers, msd lsx ignition system and a jones pulley setup with a belt driven fuel pump/power steering pump combo the CT525 made just over 600 horsepower on the dyno. Not bad considering gm says that it is 550 horse from the factory. Depending on what kind of weight break you might get by running the 525 it might be competitive. Im interseted to see what they do here when it finally gets warm enough so we can race!!!
04-07-2011, 08:36 PM
#38
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#33 Lonnie Robins at Tri-State Speedway in Pocola, Oklahoma, just across the state line from Ft. Smith, Arkansas. He's about a 6 or 7 time track champ, plus he builds his own cars, Knows his way around pretty well. We needed someone like him to partner up with our new LS to make it look good so we can sell a few.
04-24-2011, 09:34 PM
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Interesting developments may be taking place soon. The LS might not be going in a modified after all, but a Rayburn late model just might be headed our way to play with. If all the cards play out right I'll be leaving next Saturday to pick up the Rayburn. Stay tuned!!