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Old 09-23-2021, 11:43 PM   #383
949 Racing
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Join Date: Jan 2012
Drives: Miata, GT350, FR-S
Location: California, USA
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Sept 2021 updates to the Blub:

Did a two mid week Speed SF events, Laguna Seca and Sonoma. Came up about .5s short of the 86 N/A record at Laguna at 1:41.59. 100° track temps and a tired engine might have made the difference. Reset our own 1:50.547 Sonoma lap record down to a 1:48.8. Video up after Sonny finishes adding the data overlay and editing.

Before Chuckwalla we switched from the production 500/500 rates to 600/600. That's roughly 10.7kg. We knew the grip level was going up with the 18's and wanted to match the increase in roll moment. Worked beautifully. Production Xidas will still have 500/500 because most run 17x9 on 200tw, bigger sway bars, -3.5° camber and 200tw.. not 18x10 100tw on small sway bars and -5° camber like the Blub. We run a Perrin 22mm front and stock rear. Custom spring rates available on production Xidas of course.

We're pulling the motor out next week for a rebuild by Keegan Engineering in Socal. Nothing fancy but it'll get forged pistons, lighter rods, double valve springs and ports cleaned up. Should make a few more whp than before, we'll see.

Adding Whiteline KDT921 subframe bushings and KDT923 diff mount outrigger bushings. Already replaced the main diff bushings with the KDT925 kit after discovering that the OEM were collapsed and allowing the diff to rest on the exhaust.

Oh yeah, the ghetto front brake cooling deflector things worked. Brakes ran cooler, zero fade. Go back a few pages to see those.

Car was amazing at Laguna and Sonoma. Just flawless balance, razor sharp response, endless front end grip and rear just takes a set. No corrections. Grip is redonkulous.
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