Budget Street/Autocross/Track 2.5 NC Project!

Miata Parts, Intakes, Superchargers, Headers, Exhausts, Shocks, Springs, Sway Bars, Brake Kits, Autocross and track mods.

Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Thu Feb 07, 2019 3:20 pm

Time for a bespoke NC oil cooler. This prototype has connections both ends, going to add 2 more rows of height so we can get connections on same end and keep our lines shorter for production version, made to slot neatly behind the upper grille opening.
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NC-Oil-COOLER.jpg
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Fri Feb 08, 2019 9:53 am

Rocky rolling the fenders on our Project NC. Hope to have first competition day tomorrow, time to fit some 10 inch!
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FenderRollingNC.jpg
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Fri Feb 08, 2019 1:44 pm

NC1 Nose....from a different angle helps understand the prime source of cooling. Few folks get low enough to notice that Radiator is actually getting most of the cooling air through the big slit across the bottom, the more restrictive half fake grille contributes but is not the prime source.
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NoseNCAir.jpg
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby VernonA420 » Fri Feb 08, 2019 4:55 pm

How do you think it'll fit with the later NC2/2.5 front grill, which doesn't have that open lower section?
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Fri Feb 08, 2019 5:56 pm

VernonA420 wrote:How do you think it'll fit with the later NC2/2.5 front grill, which doesn't have that open lower section?


Same, all NC are pretty much the same up by the lower lip of the bumper bar where we put it, later cars the grille goes wider and lower but the part directly in front of lower bumper bar edge is the open mesh for all. And we are going to test a few positions, still debating the final location.
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Fri Feb 08, 2019 6:13 pm

On the alignment rack today. We did conservative heights for getting our 255/40 tires in there, 13.25 front, 13.50 rear. With that we got:

Front
Camber -3
Caster 6.5
Toe OUT 1/16th per side

Rear
Camber -2.5
Toe IN 1/16th per side
Attachments
NC-ALign-small.jpg
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Sat Feb 09, 2019 4:47 pm

Great First Competition Day for the Budget Racer!

Almost 100 Competitors...and an NC with a $458 junkyard motor was fastest thing with doors! It was the fastest thing with AC, the fastest thing with a stereo, a roof, air bags, etc. Beat all the Vettes, the various Porsche choices, the turbo Catfish, the Ferarri, lots of expensive stuff. Super proud of this Budget NC, such an amazing car for the money!

BudgetRacer4 (2).jpg


We had Top Time of Day until the very last run of a formula car on fresh HOOSIER slicks (pic below), and he only got us by a few tenths of a second. We are on Rival street tires, give us a set of Hoosiers and we could have gone about 1.5 seconds faster on this long course in my experience on this surface. Not bad at all for a budget project that got built super fast and no test/tune to dial in the setup. Full report on the coilovers and how the other bits worked tomorrow.

FormulaSlicks.jpg


BudgeRacer5 (2).jpg
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Sun Feb 10, 2019 3:15 pm

Good-Win Racing Budget Racer NC Project Miata Practice fun yesterday with passenger in light rain.
Rival 200tw street tires.

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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Brian » Sun Feb 10, 2019 4:20 pm

Got asked for parts list as it raced yesterday.....

Will check my notes to see if I missed anything but here is what was on the car yesterday off top of my head:

Junkyard 2.5 from Mazda6 with 54k miles.
Old busted splitter from our junk bin (repaired and glued it up, shot with some black paint to 'make new' again)
Used factory limited slip out of a 2010 from salvage yard
Goodwin Racing Triple-Pass 32mm Race Radiator
17x10 6UL Wheels
RoadsterSport Prototype Sways
RoadsterSport Endlinks
MeisterR coilover with 10kg/6kg
RoadsterSport MAX Power 1.8 Inch Header - Ceramic Coated
RoadsterSport HELMHOLTZ MX5 Miata Midpipe with Converter
RoadsterSport SuperQ muffler
Moroso 63779 NC Aluminum Coolant Expansion Tank
Xero Limit Cams & Tune
Xero Limit Intake
RoadsterSport Competition Engine Mounts
Whiteline offset bushings front only.
RX-8 front hubs
ARP wheel studs
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Re: Budget Street/Autocross/Track 2.5 NC Project!

Postby Bohemian » Sun Feb 10, 2019 4:27 pm

Very cool!

You inspire the rest of us - congrats!
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