Stock NB1 + exhaust
03-05-2021, 03:32 PM
#1
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Stock NB1 + exhaust
After some rumors that there would be a protest made at my next TT event, I decided I'd better actually dyno the car. Previously, I've relied on what I thought were optimistic numbers found online for similar cars that had gone to a dyno. Turns out I was just fine guessing 115/110 hp/tq. The class is almost entirely power/weight, with a modifier for tires.
Not a very exciting dyno sheet, but figured I may as well add it to the collective knowledge in case it's helpful for someone else, or if someone is surprised by the numbers. Car is an NB1 with the stock engine, Racing Beat headers and muffler, and a cat-less midpipe from Goodwin. Max torque isn't on the print out as the values below ~3k rpm were useless - something about the way the operator released the brake on the dyno(?).
Either way, I ended up at 107 whp and 98 ft/lbs on this SuperFlow dyno. Adding 10% still leaves me solidly within the bounds of my class given a weight around 2340 pounds. Only notable weight differences from stock are lack of AC/PS, CCP hard top, no windows/regulators, no headlights, and a few other bits gone. Not fully gutted. Picture of car is from just before I added the hardtop and hacked up the headlights.
Not a very exciting dyno sheet, but figured I may as well add it to the collective knowledge in case it's helpful for someone else, or if someone is surprised by the numbers. Car is an NB1 with the stock engine, Racing Beat headers and muffler, and a cat-less midpipe from Goodwin. Max torque isn't on the print out as the values below ~3k rpm were useless - something about the way the operator released the brake on the dyno(?).
Either way, I ended up at 107 whp and 98 ft/lbs on this SuperFlow dyno. Adding 10% still leaves me solidly within the bounds of my class given a weight around 2340 pounds. Only notable weight differences from stock are lack of AC/PS, CCP hard top, no windows/regulators, no headlights, and a few other bits gone. Not fully gutted. Picture of car is from just before I added the hardtop and hacked up the headlights.
Last edited by maplewood; 03-08-2021 at 11:17 AM.
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03-08-2021, 11:20 AM
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Yep, HL4. Not much competition in HL4 (or HL3 for that matter) on an ongoing basis though.
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03-08-2021, 12:20 PM
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You're running strong times for HL4, but I'm still surprised anyone was planning to protest... not like there's a lot of prize money on the table... LOL.
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03-08-2021, 12:52 PM
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Looking at the NASA records my 1:12.2x is only slightly faster than the TT6 record so I don't think it's anything crazy/unexpected. What can ya do, I'm just out having fun. Was still worth the $125 to know I don't have to worry about it and that I'm not taking PAS records unfairly, even if they mean essentially zero. I did get a cool (probably $5) spark plug trophy, maybe they are just really into those lol.
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