Call me when the stock calipers **** the bed. Nice build.

 

most sanctioning bodies only allow 4 bends in the rollbar main hoop.... you have 6.

Besides that, i like the build... very along the lines of something i would do.

 

Awesome. Which tracks do you plan to race at? I didn't see a location,

 

It probably has a tiny turbine housing.

 

With the right fueling this combo is win. Not everyone goes down to the local Mobil to buy 91-93.

OP, what are you fueling with? In for plots when you get them.

 

Great build IMO. Though I'd put the door bars out to the door skin and ditched the interior panels IF I was going to compete in this car.

To shlammed's point- it pays to build/prep for safety following an established sanctioning body's guidelines per their rule book. I've seen similarly built car/cage get denied at a regional. Safety is really the primary concern when getting a log book.

re: lap times
Personally I cut my quickest laps when I'm competing. So throw me out at a track (HPDE) event and I'll run 2 seconds a lap slower. I know when I put my current street Miata on the track I won't come close to pushing like I do an ITA/Spec Miata. My guess is the same thing holds most back when tracking their project cars. It's balancing act- saving a second or two off a lap time at a far greater risk of wadding up a lot of work. Also need to consider that lap records in Spec Miatas are exactly a "stock" Miata- not when a front running example is $30-40k turn-key new from a builder.

 

Turbine housing is a TIAL .63AR

Located in the Midwest so will run @ BIR, Mid America, and possibly Road America. We have a handful of customers we work closely w/ that run the RTA series tuhs was the motivation behind this build but since they have moved the majority of the events down on the lower west coast idk that that will happen anymore.

The thoughts crossed my mind of going full blown race build and gutting out the doors and such but i decided for this build to be able to keep it a little more subtle and be able to keep the panels/windows etc thus being able to take it out on the streets and screw around. I have another chassis that suites better for a completly gutted/cut up project that is not in nearly as good a shape as this one.

Fueling is done w/ Walbro 255HP, ID 1000's on E85.

 

Guess what... i was NOT running a turbo... and it was my first time EVER out on Full course and EVER running the car naturally aspirated.

My turbo times are already well below SM times. Thanks for playing though.

 

Last year weight was 2144, this years should be just hair lower without passenger seat.

Suspension is revalved bilstein and 750/400, front bar and no rear. So its close.

Motor is 100% stock, 96k on the clock. Borrowed obx header/oem cat. My custom intake manifold that is all likelyhood is hurting me due to it all breathing through a giant Intercooler... worst intake tract ever.

225/nt01, so almost a 205 RA1, basically the same tire. That is also with hefty cheap wheels and what not also.

 

I said take out and screw around, not daily drive. This project is a "toy" and will be treated as such. The car as is only has 45k on it and its a 90.

 

I hate having to clean up threads...

 

ok

 

First round of tuning 20psi on E85:

 

What gearing and trans are you running

 

4.10/5spd

 

Great power, awesome build...what was your duty cycle on the E85 and ID1000's?

 

That should last a lap or two.

 

Maybe it will be one of those magical 5 speeds that holds up fine, forever. I wouldn't plan on it though.

Awesome build, and awesome numbers. It probably goes through the gears in the blink of an eye with 4.1 rear.

 

Running a fairly taller rear tire so the gearing as isnt to bad. 3rd gear graph was ran out to 7k, 4th gear was ran out to 7500rpm.

 

I'd like to know this as well.

Thanks,
--Ferdi