Blackbird Fabworx Moby Dick
#1
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Join Date: Oct 2011
Location: Northridge, CA
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Blackbird Fabworx Moby Dick
Just finished this one.
Missing some stickers and I still need to wire the brake lights, but it'll be tested tomorrow morning at ACS Miata Challenge round 6.
Hoping to see a few more MPH around the oval, breaking the 130 mark.
Moti
#6
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Yes, it's all about drag reduction.
The tail was built as an "Auto Club Speedway" special, which is where we race this weekend.
ACS has 2/3rds of a NASCAR oval which is very fast, for a stockish powered Miata it's basically a really long straight, and then the infield is all slow corners which downforce wouldn't help you much.
The tail was designed in such way that I can still run my wing, all I need to do is to cut the two slots for the uprights to go through, the bracketry clears everything fine.
Moti
The tail was built as an "Auto Club Speedway" special, which is where we race this weekend.
ACS has 2/3rds of a NASCAR oval which is very fast, for a stockish powered Miata it's basically a really long straight, and then the infield is all slow corners which downforce wouldn't help you much.
The tail was designed in such way that I can still run my wing, all I need to do is to cut the two slots for the uprights to go through, the bracketry clears everything fine.
Moti
#19
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Join Date: Oct 2011
Location: Northridge, CA
Posts: 842
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The balance was completely off at the beginning of the day because the shocks were set to deal with downforce since I normally have a wing on the car.
VERY oversteery!
I took the 3.25" splitter that I had on the car off, and bolted a smaller one instead... The smaller one was 2.5" but I knew it's still going to be too much so I took the jigsaw to it and made it a 1" splitter which reduces drag over not having a splitter.
With the small splitter and after turning some ***** on the shocks the tail settled down for the most part.
I was on NT01s that have seen too many heat cycles already, so mechanical grip in general was suffering... a wing might have made the infield less dramatic (especially T9, AKA the ********), but any time made by the usage of downforce in the infield would have quickly gone away because of the additional drag when driving on the oval.
A few pics from the weekend -
Including a good view from the back
Moti