Ran my 98 Formula on the Dyno at CarCraft
07-21-2014, 02:13 PM
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Ran my 98 Formula on the Dyno at CarCraft Pretty sure all stock, (possible mild cam, Flow master 40 mufflers).
They didn't hook up any type of fan for air flow. 80 degrees outside, 75-80 for humidity.. Best pull was 271hp, 275tq to the wheels.
question is, does that sound right for a stock LS1? I know they where rated at 305hp, 310tq at the crank. and if you loose 20% from crank to wheels, that would mean I'm making roughly 340hp at the crank? Any info or comments welcome please.
It was a PowerHouse dyno
They didn't hook up any type of fan for air flow. 80 degrees outside, 75-80 for humidity.. Best pull was 271hp, 275tq to the wheels.
question is, does that sound right for a stock LS1? I know they where rated at 305hp, 310tq at the crank. and if you loose 20% from crank to wheels, that would mean I'm making roughly 340hp at the crank? Any info or comments welcome please.
It was a PowerHouse dyno
Last edited by bullit98formula; 07-21-2014 at 02:20 PM.
07-21-2014, 04:10 PM
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07-21-2014, 04:24 PM
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Last edited by 98MysticGreen; 07-21-2014 at 04:26 PM. Reason: adaf
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07-21-2014, 04:36 PM
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I'm Trying to figure out IF it is indeed bone stock. if all of you comments are going to be insulting. feel free not to respond. I'm looking for answers, not smart *** comments.
07-21-2014, 04:52 PM
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07-21-2014, 05:34 PM
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First of all, I'm 33, and your comments make you sound like your 10. I am simply trying to get some answers. And as for your earlier comments, I have flow aster 40 mufflers(I'm not an idiot). I am trying to see if the guy I bought the car from was trying to blow smoke up my ***. (I figured he was). So I'm hoping someone may have dyno'd there car when stock, so I have #'s to compare.
07-21-2014, 05:39 PM
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Generally these cars dyno a tad over 300RWHP bone stock, and Ive seen cars as high as 320RWHP bone stock. Bolt-on only cars will easily make 350RWHP.
Take the car to a drag strip and see what it runs, that will be a good indicator of how well its running. Dynos are a tool for tuning, you have to take the numbers with a grain of salt.
Also post pics of the engine bay, and under the car of the exhaust, we can tell you if its stock or not.
07-21-2014, 05:40 PM
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I have not, I purchased the car in April, it has a rebuilt engine. Only 8k on it. Guy claimed he put a mild aftermarket cam in when it was rebuilt. So I'm just looking for base #'s. But from people's comments, it sounds like he was blowing smoke.
07-21-2014, 05:45 PM
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Ah now its making more sense. On top of posting pics like I said in my previous post, see if you can upload a video of the car idling.
07-21-2014, 05:46 PM
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While these cars were rated at 305hp, all LS1's made roughly 350hp/375ft.lbs of torque from the factory. GM rated the Fbodies lower so they didn't seem so close in numbers with the Corvette, but its the same exact LS1.
Generally these cars dyno a tad over 300RWHP bone stock, and Ive seen cars as high as 320RWHP bone stock. Bolt-on only cars will easily make 350RWHP.
Take the car to a drag strip and see what it runs, that will be a good indicator of how well its running. Dynos are a tool for tuning, you have to take the numbers with a grain of salt.
Also post pics of the engine bay, and under the car of the exhaust, we can tell you if its stock or not.
Generally these cars dyno a tad over 300RWHP bone stock, and Ive seen cars as high as 320RWHP bone stock. Bolt-on only cars will easily make 350RWHP.
Take the car to a drag strip and see what it runs, that will be a good indicator of how well its running. Dynos are a tool for tuning, you have to take the numbers with a grain of salt.
Also post pics of the engine bay, and under the car of the exhaust, we can tell you if its stock or not.
I am certain the exhaust is factory besides the mufflers. Pipes are slightly flattened, if that make sense.
07-21-2014, 05:46 PM
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07-21-2014, 06:15 PM
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07-21-2014, 07:37 PM
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she looks to be all stock except slomaster muffler !
I honestly wouldn't worry about the dyno numbers.
id tune it up and enjoy it.
Around here they is a 20hp difference between a mustang dyno and a dyno jet with the mustang dyno being on the low side.
I honestly wouldn't worry about the dyno numbers.
id tune it up and enjoy it.
Around here they is a 20hp difference between a mustang dyno and a dyno jet with the mustang dyno being on the low side.