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Heh, I need to recover after spending some money on these + the install. I'm just so confused that power didn't go down. Yeah, the 285/30/18 tires and wheels had
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A True Z Fanatic
![]() Join Date: Oct 2011
Location: Tampa
Posts: 4,142
Drives: 13' Magma Red Nismo
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Heh, I need to recover after spending some money on these + the install. I'm just so confused that power didn't go down.
Yeah, the 285/30/18 tires and wheels had to have definitely helped, just not 20WHP helped if you know what I mean. Theres a 2" diameter difference, the tires are 3lbs lighter than mine, and the wheels are lighter; I didnt have a scale, but the weight diff wasn't more than 7-10lbs max. It was warmer outside last night than before, but the shop temps were the same. It's just interesting to me. Now I'm so closed to 350WHP, my balls hurt. And for reference, there was no retuning, just dyno. Afterwards I dropped by Martin's house and he kindly updated my gearing tables to fix SRM.
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Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI
New Car: Under Construction ![]() |
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