Hustler's build thread 2.0, the natural aspiration connection
 

My turbo build was great, fucking loved the car and everything about it. However, I've turned a corner in my track hobby and now I want to build a car that can be nationally competitive in TT and no Miata is going to do that in the high-power classes. I plan to keep the AF turbo parts in case I don't like this low-powered stuff. If I like it, I may move the AF stuff to a daily driver Miata a few years down the line. I am also pretty desperate for cash so we'll see what happens but it's not going to be cheap if you're interested in buying.

Johnwag has an 11.5:1 engine that I'm borrowing/buying.
Here are the plans for the first stage of the build:

• 11.5:1 engine with a knifed crank Supertech pistons, unknown rods, 99 head, MS intake cam, square top manifold
• Spec clutch w/ aluminum PP, aluminum flywheel, and it's a tiny 16 clutch
• ARTech exhaust that will require some adaptation to work on my car, no cat, small muffler, center exit
• Still running MS1
• 6-speed
• 4.10 rear end
• Cusco diff
• 580cc injectors with my SS lines and Fuelab regulator
• 11.3TSE brakes stay
• M-tuned rear sport brakes stay
• skinned dash to drop more weight

Future plans:

• VVT head
• MS3(Reverant)
• EV14 injectors
• Possible head-work if I have the money

Things I need, urgently

• custom intake plumbing
• modification to the exhaust to fit
• modify header for o2 bung

Currently the turbo engine is hanging and ready to come out. I need to drill and tap the oil pan on the new engine for oil temp
https://www.miataturbo.net/attachmen...ine=1346044687
I hope to have all this finished by Friday and on the dyno this Saturday.

In for small pee pee powerband:giggle:

This is extremely loose butthole of you.

In for glory.

Some dumb class reasons for not going with proper cams (even in the future plans)?

Attn:
If you're bitching, and own a turbo car, and not 4+ seconds under the SM lap record on a <2 mile track, you cannot talk shit in my thread or I will ban you and kick your asses.

$$$, time, effort, give a shit. I just want to have fun and do zero maintenance. I also don't really know much about making NA power, this portion of the thread is about getting the car down the road, having fun at the track, and getting some neurosis out of my life.

sad. sad. sad.

I'm going to ban you later.

Rented track car?

Nothing wrong with focusing on seat time. I know too well about the time taken to get a head done right (one year since my VVT engine ran last time).

On the bright side hustler did make it 14k posts with a turbo. He only needs another 4k posts of NA power to be back even.

how about some aero...oh wait.

Later, when I have more money.

I think that if you guys talk to any of the powerhouse drivers doing anything notable at a national level, you'll find they all drive NA cars on the track and those cars are their weapons of choice, the FI cars are an engineering experiment or "rare treat".

After seeing what Emilio is doing in Crusher and his street car, what TSE is doing in the Rover, and what the TXMC dirty crew is doing, 170whp NA is going to be more fun, give me a chance to show what I've got, and possibly compete at the national level. It will also remedy me of the constant fear of breaking transmissions, rear ends, turbos, and I won't be as afraid to enter the fast corners in a car without a cage. This was a very, very hard decision for me, but I feel it's the right one. Maybe after I buy a house, truck, and trailer, I will revisit the turbo track car.

Most importantly, no one who've ever run a fast-lap in their lives thinks this is a bad idea.

are you going to daily this N/A racecar?

lol win

Hell no. I'm trash without the trailer, I have a shitbox daily driver which will soon have a VVT/10:1 compression swap, 6-speed, 3.63, and MS2.

i guess that's okay then. still, you're not a man. good luck writing Fema checks in NO once the hurricane hits.

Sadly, I suspect I'm going to run the same times with the NA set-up that I did with the turbo car. If that happens, I'll need this:
https://www.miataturbo.net/attachmen...ine=1346095818

I'm the flood insurance guy now, you probably hate me even more, lol.

Personally I feel like you should build a whole new car. The green glory hole car is too good to be turned into a limp-dick N/A car.

You hate yourself, giving out those gov't checks to millionaires in their multi-million dollar summer-homes.

Is it "limp dicked" if it goes faster, collects trophies, and makes me smile just as much?

Hey, if I don't like it, I can always switch back.

You'll regret it on occasion, but it's not a bad idea.

Dat exhaust:
https://www.miataturbo.net/attachmen...ine=1346097180

The best part of all this?

sjmarcy will be completely and utterly convinced that he was right all along, and that your automotive journey is further proof.

Looking forward to seeing the NA numbers it puts down.

The Absurdflow parts and turbo motor need to go in the daily. It certainly seems a lot easier to maintain a reliable, good gas mileage, 300whp daily driver than trying to do it in a racecar.

I sometimes miss my turbo miata track car. Doesn't take much time in the seat of a real race car to forget all about it.

Are you going to fully cage the car?

And what class are you building for? TTD?

So how are you adapting your turbo exhaust to the NA? Won't that be ungodly loud without the turbo?

I enjoyed your other build and posts; you've been a player when it comes to fast turbo miatas that go fast on a track for sure. This build should be awesome too. Its even better that you did all that driving the car to the track.

I can say from experience though, a super light real racing car with a simpleish NA engine is great. I have a 240sx lemons car that I co-own with a couple of dudes. Its pretty simple and pretty reliable. I took my black miata with the mp62 to a track day where we had the lemons car too and did 4 laps in the miata before I parked and got back in the 240. Both on street tires the 240 was 3 seconds a lap faster on a 1:30 track.

Nothing sucks more than going to the racetrack and not turning laps.

Ok, ok, getting blue balled sucks more but only just.

I've never raced a car on the track. But I see the logic in this idea. I think the fun factor will stay the same, and the worrying factor will go away. So win win.

Motor is in!
https://www.miataturbo.net/attachmen...ine=1346126229
https://www.miataturbo.net/attachmen...ine=1346126229
Every tool we needed to pull the engine less the deadblow and lift:
https://www.miataturbo.net/attachmen...ine=1346126229
I don't have room for air in that little-ass garage.

I need to make water return line with the remote thermostat, remove the intercooler, tape-up the holes in the ducting, attach the exhaust, put in the new clutch line, and then I'm off for road tuning and hopefully will get on the dyno this weekend.

I will not cage it since I want this to be the car I drive to the track in TT until I get a racecar. When that happens, it will be my car for the instructor sessions with whatever club I'm helping instruct with.

I will reduce power to stay in TTD. I still don't know the weight number so I don't know how much power to expect. Maybe Emilio can chime in.

I plan to corner balance and align next week.

I'm a good driver, but I kind-of lost my way in the turbo car due to other factors and going outside of my comfort zone with safety and neurosis from breaking shit. This is about getting back into driving the car, spending no money in the process, and making the most important track day of any I've run in my life. I want to be nationally competitive, this is the way to do it. I don't know that I will be, but I want a the right car in the right class.

I also suspect I will go just as fast if not faster with this set-up.

Aren't you already in TTB, Hustler?

I'm a bit confused - why would you drop as much power as you are if you are only going to stay in the same class?

Miskey.

I'm not saying one is better, but the way you man-handle an naturally aspirated Miata is a much different experience on track, and I miss it.

Is this specifically because of how a N/A engine works compared to turbo, or simply a lack of horsepower Hustler? Do you think this would change if you hit the 170hp you are talking about here?

I'm starting to seriously consider picking up a N/A shitbox focused for track use with what I've been reading from you lately.

+1

:hustler:

As you were.

Sure is.

I spent yesterday evening chasing down my friends 1.6@7psi

He was on Goodyear slicks and me on RA1's, insanely fun for as slow as it was going compared to my old motor (150hp vs 350hp)

I know you'll appreciate tracking an NA car, I highly recommend stripping it though, need all the weight out that you can get.

RE: Absurdflow parts in the daily...do you have A/C or P/S in the daily? If so, then nope.

Also, I think this is a great idea. Subb'ed for the journey!

Yeah, I don't know what to do then. Can I ship you this manifold then evalutate? I'm going to track the car in NA form and see how it goes, I dont' know that I have the will to sell the AF stuff. It might bring me to tears. I dont' know if it means anything to you, but I really felt like I was watching the end of Braveheart when I pull that downpipe.

I don't really know how the car will drive as power goes up, I need to get some time in the car and see what I think and what I feel.

Emilio, you see what you started with that awesome orange car of yours?

miatapulltheturbo.net

In for fuel/timing maps and dyno runs on this one.

Working fast I see. Stoked to see some numbers on this beast. I may joke and talk shit (lovingly, sweet prince), but if I were building a track car you can damn sure it would be a budget N/A build.

Anyways carry on.

I'm in a huge pinch, I have to travel to New Orleans as early as Thursday, so this car needs to be done and ready for the dyno tomorrow night.

I need an intake with an IAT bung. Does anyone know of one worth buying that isn't too expensive?

Question:
When you take-off the 99IAC valve, is there enough room to make a plate and weld a bung for the IAT? I'm afraid to drill and tap the square top plenum.

Drill and tap a 180* intercooler bend for the iat. I've done this for my wastegate signal hose. I'd suggest eventually welding a bung though, as you'll only get a single thread of engagement. Obviously don't over tighten it.

And the 180* will put the filter next to the intake manifold. Colder than the exhaust side...

If you decide to sell any of your turbo parts that help reliability, I call first dibs! You won't have to box anything up or ship stuff.

but less torquez.

I could run the old intercooler-throttle body pipe but don't have an air filter for it. That also has the IAT bung.

Eventually I'll get Abe to make a pipe for me.

I still need to get the exhaust modded so it clears the bumper.

Short intake tube = less torque?

I actually experienced just that in a friends 99: he's got the filter almost directly on the TB and his car has nearly no torque down low. I thought it was just me but maybe not.

not a bad idea, put the filter in front of the rad.

Very good idea actually. Local guy did just that came out great.

Been there done that.

I have a 3" k&n you could use. You probably want 2.5 to avoid coupler transitions though?

Can I get a 2" "orificed" cone filter anywhere locally?

Doubt it. Last time I went out to the local vatozones and similar places it was all 3"+ cause they care only about dumbestic cars

Hope this goes well...already off to a grand start. I'm definitely interested in what the numbers look like, and how the transition from turbo to n/a track car goes from your driver's seat perspective.

Also, last time I looked, Advance Auto had cone filters with various collars that could neck you down to different diameters.

I like where this is going and I'm extremely jelly.......

I recently convinced a friend of mine of why a TTB turbo miata was such a bad idea and he now has a E36 M3 instead. I used you as the main example :giggle:

I'm wanting to turn my car into a TTD/E car within the next couple of years. Maybe we'll end up on the track together and I'll bump you off apex every turn like the good ole Forza races :party: