Liam's NA Miata - Finally back on the road!!!

No I meant changing the exhaust note to make it sound like a crossplane.

By using reverse 180 degree headers and by reordering the firing order and seperating them into two manifolds. Just a thought although I don't know if it would work out.

Hmm I'll have to look up what that sounds like.


Eh, heat shield won't help that much, you're still pulling in hot air from the engine bay. The cowl intake actually brings fresh, cold air from the cowl area under the windshield. Pair that with the high flow filter and you have one of the best intakes out there.

But do what you want. :)

How does it sound?

Basicly, but something behind the tires to stop the car if the brakes fail ( chocks ), then put the car in reverse for a second, then "both feet in" and brake with full force. The car should stop hard and not need to hit the chocks. If you don't bleed the brakes you can skip measuring the fluid level.

Another good thing I have noticed about autocross ( I hope do some, they are SO much fun ) is it a very good reminder to give the car a good once over. Check the suspension, brakes, hoses, etc. I found I had a slightly loose battery the night before the event ( even though I tightened it only 2 weeks before... ).

Also, for cleaning the engine bay, get a cheap brush like this:

dish+brush.jpg


And some dish soap. After a light scrub all the dirt will be easily removed with a damp rag. Note, dish soap will remove wax.

Sweet, I understand now. Gonna do a quick run to my car shop and get some brake cleaner and a brush, maybe some simple green, and clean out the engine.

Yes these are some of the largest resolution pics I have seen on the site. EACH pic is about 5.3 MB!! :eek:

LOL. I'm giving y'all the ULTRA HD experience.

Looks great, just hope you used high temp paint. I'd do the headers next!

Yup! Used high temp paint! I'm thinking about doing the headers too, or cover them up with a nice heat shield.

So I brought the car for the wheel alignment today, told them about the clunking, long story short they couldn't do an
alignment because of it. The inspection was free, so I have another appointment lined up this Saturaday, I'm not going to say anything about the clunk, and see what happens.
 
I'd paint the header. Heat shields look a bit weird IMO. I'd say wrap them but that promotes rust and headers tend to rust through quick.
 
Hmm I'll have to look up what that sounds like.

I don't think anyone's done it yet. 180 degree headers are commonly used on American V8s, like a 350 Chevy small block. The point of the headers is to even out and harmonize the firing order of the engine making it sound like a European V8 (Lambo, Ferrari, etc).

For reference:



Now, a V6 doesn't need this, because well, the firing order is already in sync. V4's don't need them (used mostly on bikes). V5's.... let's not go there.

So, what I would like to do to a four-banger, is do the reverse. There are a couple of ideas floating around, but no one wants to do it, because frankly, it would be cheaper to get a 350 small block into that Miata than worry about the headers.

Just thinking out loud is all. If you're interested enough, the next time go to a car meet and ask a Miata owner, it's a quirky ice breaker :P
 
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Okay, I might just empty the brake master cylinder and fill it up with new fluid, since most of the fluid is in there.

Doing that won't do much as the fluid you want to change is in the calipers. If you want to flush the system use a turkey blaster to siphon out as much fluid as you can from the reservoir, full it up with the new fluid and start bleeding, beginning from the wheel farthest away from the reservoir and moving closer, most cases it's RR, RL, FR, FL. MAKE SURE THE RESERVOIR NEVER RUNS DRY. Sucking in air through the reservoir will make it near impossible to remove the air bubbles without a machine.

Just some important information, make sure to read some more if this is something you want to do yourself 👍

It would be better if you could replace all the fluid but if you cant, then yes just doing the mastery cylinder will be fine for now. You can use a little syphon to suck the brake fluid out of the master cylinder. Or just use a rag to soak up all the juice. Also as mentioned above, do not get the brake fluid on ANYTHING.

Also make sure you put in high temp brake fluid especially if you are considering autocross. Regular brake fluid has a low boiling point and will fry extremely fast at an autocross or road track even. So make sure you put in synthetic, high temp, brake fluid. Its only a few more dollars and well worth the purchase. You do not want to attend any of those events using regular brake fluid. So before you attend an event, make sure to bleed all the brake lines with high temp synthetic. Until then, replacing the fluid in the MC will be good enough for now.

I use this stuff and it's been great so far, many club racers swear by it:

419Y4FCJv7L._SL500_AA300_.jpg
 
Now, a V6 doesn't need this, because well, the firing order is already in sync. V4's don't need them (used mostly on bikes). V5's.... let's not go there.

V4??? V5??? Lol wut I think the correct term is VR5, 'cause the only five cylinder engine I know of that has any bank angle uses a common head. As for a V4, I've never come across a car with 4 cylinders that isn't an inline, or a flat 4
 
V4??? V5??? Lol wut I think the correct term is VR5, 'cause the only five cylinder engine I know of that has any bank angle uses a common head. As for a V4, I've never come across a car with 4 cylinders that isn't an inline, or a flat 4

Lancia, Ford (EU) and ZAZ made and used V4 engines.

Saab Sonnet III Ford Taunus V4 engine

800px-Saab_Sonett_III_Ford_V4_engine.jpg


V5 Engine:

300px-Motogp_rossi_300.jpg


And yes, the "V5" in the car realm is a VR5.
 
Not much different from stock. You want sound or horsepower? :lol:

Well, I want it to sound good lol. Some intakes make Miatas sound like they have VTEC.

I don't think anyone's done it yet. 180 degree headers are commonly used on American V8s, like a 350 Chevy small block. The point of the headers is to even out and harmonize the firing order of the engine making it sound like a European V8 (Lambo, Ferrari, etc).

For reference:



Now, a V6 doesn't need this, because well, the firing order is already in sync. V4's don't need them (used mostly on bikes). V5's.... let's not go there.

So, what I would like to do to a four-banger, is do the reverse. There are a couple of ideas floating around, but no one wants to do it, because frankly, it would be cheaper to get a 350 small block into that Miata than worry about the headers.

Just thinking out loud is all. If you're interested enough, the next time go to a car meet and ask a Miata owner, it's a quirky ice breaker :P


LOL. Don't think I will bother putting putting that kind of header in my car, if they even make them for Miatas.
 
I don't think anyone's done it yet. 180 degree headers are commonly used on American V8s, like a 350 Chevy small block. The point of the headers is to even out and harmonize the firing order of the engine making it sound like a European V8 (Lambo, Ferrari, etc).

For reference:



Now, a V6 doesn't need this, because well, the firing order is already in sync. V4's don't need them (used mostly on bikes). V5's.... let's not go there.

So, what I would like to do to a four-banger, is do the reverse. There are a couple of ideas floating around, but no one wants to do it, because frankly, it would be cheaper to get a 350 small block into that Miata than worry about the headers.

Just thinking out loud is all. If you're interested enough, the next time go to a car meet and ask a Miata owner, it's a quirky ice breaker :P


Also famous for 180° headers are the GT40s. ;)

Basically, because cross-plane V8s have 2 cylinders firing 90° apart on each bank they are both exhausting at the same time, reducing flow through the exhaust. 180° headers take the exhaust gasses from the competing cylinders (the 2 firing 90° apart on the same bank) and exhaust them through separate collectors/tailpipes.

Never heard of the reverse being done for a 4 cylinder before, but it's an interesting concept.
 
Intakes really don't yield much horsepower unless you start messing with things around the manifold. I believe that 949racing states that an intake tube around 14-18 inches is the best design for a Miata. Really you need a standalone, headers, midpipe, and manifold with the randall intake or 14-18" Tube. Now you know why most people just go Turbo! ;)
 
I'd go turbo, but I don't know if I should, because it has 255,000 kms.

So I cleaned my engine bay, these were the weapons of choice.

IMG_0084.JPG


Cleaned the underside of my bonnet.

Before

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After

IMG_0085.JPG


These are the after shots of the engine bay, I was really cautious with the stream of water. I covered up the new alternator and coil too.

IMG_0091.JPG


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Looks a bit brighter. But for my engine bay to look "clean", I need to get new parts for it.
I want to get new silicone hoses, intake, remove the carbon canister, and other bits and pieces the make it pop.

But after the engine clean there is less dirt and it does look better.
 
Intakes really don't yield much horsepower unless you start messing with things around the manifold. I believe that 949racing states that an intake tube around 14-18 inches is the best design for a Miata. Really you need a standalone, headers, midpipe, and manifold with the randall intake or 14-18" Tube. Now you know why most people just go Turbo! ;)

I wouldn't say that's quite accurate...more so depending on the application itself. On a newer, smaller engine such as this an intake manifold alone probably wouldn't do a whole lot. On an older, larger engine such as a V6 or V8, especially V8's, intakes by themselves can be worth upwards of 15 horsepower.
 
I wouldn't say that's quite accurate...more so depending on the application itself. On a newer, smaller engine such as this an intake manifold alone probably wouldn't do a whole lot. On an older, larger engine such as a V6 or V8, especially V8's, intakes by themselves can be worth upwards of 15 horsepower.
The 1.8 really responds well to a flat-top Eurospec/Japanese manifold. An increase of around 8 Horsepower, which on these cars is a lot on natural aspiration, can be found. Even more when you factor in a standalone. Above 150whp a Skunk2 throttle body can unlock a few more horses. To make a 160whp you need an intake, full exhaust, exhintake mod, NB1 head, standalone ECU, and the eurospec manifold. That's what Emilio from 949racing did on his 94(?) R-Package.

You'll end up somewhere around the $2-5k mark though, so for the same price you could get a Voodoo or FM2 package and really turn up the power. Natural Aspiration is for the die-hards on these cars.
 
Wait until you have to rebuild the engine. Good excuse time to start building something out of it.

Not even worth rebuilding the engine unless I wanted crazy horsepower, I want like 180 at the wheels. I'd swap another 1.6 with lower kms and turbo it.
 
The 1.8 really responds well to a flat-top Eurospec/Japanese manifold. An increase of around 8 Horsepower, which on these cars is a lot on natural aspiration, can be found. Even more when you factor in a standalone. Above 150whp a Skunk2 throttle body can unlock a few more horses. To make a 160whp you need an intake, full exhaust, exhintake mod, NB1 head, standalone ECU, and the eurospec manifold. That's what Emilio from 949racing did on his 94(?) R-Package.

You'll end up somewhere around the $2-5k mark though, so for the same price you could get a Voodoo or FM2 package and really turn up the power. Natural Aspiration is for the die-hards on these cars.
And thats why people go V8 swap. For $5k you can have a 450 horse smallblock if not MORE if you know what you're doing and have a few connections.
 
Not even worth rebuilding the engine unless I wanted crazy horsepower, I want like 180 at the wheels. I'd swap another 1.6 with lower kms and turbo it.

Going back, I read your mileage in well... miles. Thought it might've been time to rebuild or replace anyways. :lol:

If you're only looking for 180 I'm surprised you want to turbocharge it.
 
I just thought if someone's putting on a turbo they're looking for some power, upwards of 300 in this case.

I think your forgetting that car weighs around 2,000 pounds. It will freaking haul with 200hp. You need a crap ton of power to go fast or have fun. Hell its super fun with just 100hp right now.
 
And thats why people go V8 swap. For $5k you can have a 450 horse smallblock if not MORE if you know what you're doing and have a few connections.
Supercharged V8? Supercharged V8.

That would be fun...
 
Supercharged V8? Supercharged V8.

That would be fun...
Nope. Entirely N/A. Stroker kits for small blocks will do wonders for horspower and torque. I know a guy around here with a $5500 Ford 351 thats making in the vicinity of 540 horsepower N/A in a Mustang II.
 
Nope. Entirely N/A. Stroker kits for small blocks will do wonders for horspower and torque. I know a guy around here with a $5500 Ford 351 thats making in the vicinity of 540 horsepower N/A in a Mustang II.
I think it's fair to say... @LeadFootLiam when are you getting your V8??
 
And thats why people go V8 swap. For $5k you can have a 450 horse smallblock if not MORE if you know what you're doing and have a few connections.
An iron block V8 in these throws the balance way off. LSx is the best way, and there is no way you are doing that for $5k. Maybe twice that if you get used parts and do it yourself.

I just thought if someone's putting on a turbo they're looking for some power, upwards of 300 in this case.
I think your forgetting that car weighs around 2,000 pounds. It will freaking haul with 200hp. You need a crap ton of power to go fast or have fun. Hell its super fun with just 100hp right now.
My 1990 with a stock motor, FM Voodoo kit at 12psi (at 5600ft elevation, lower elevation = less boost) made 195hp to the wheels. Consider a stock 1.6L makes all of 90hp to the wheels on a good day, that's a significant jump. The car ran a 14.00 @ 102mph at the track with a horrible 60-foot time. It was a 13 second car. Stock Mustang GT's were not a problem. ;) 200hp is plenty.
 
An iron block V8 in these throws the balance way off. LSx is the best way, and there is no way you are doing that for $5k. Maybe twice that if you get used parts and do it yourself.



My 1990 with a stock motor, FM Voodoo kit at 12psi (at 5600ft elevation, lower elevation = less boost) made 195hp to the wheels. Consider a stock 1.6L makes all of 90hp to the wheels on a good day, that's a significant jump. The car ran a 14.00 @ 102mph at the track with a horrible 60-foot time. It was a 13 second car. Stock Mustang GT's were not a problem. ;) 200hp is plenty.
Material used makes no difference in weight and balance. Weight is weight, doesn't matter where it comes from. A 302 stroker with an aluminum top end will weigh less than an LsX in the end if not being close to the same and it will be stronger due to a high nickel content. A 331/347 stroker with well matched parts will make at least 400 rwhp and can be done for about $5k give or take, and a motor with an aluminum top end will about roughly 390lbs; nearly 80lbs shed if not more as those are just estimates.

In the end you can make up for the increased weight with better suspension. All depends on how much money you want to throw at it.
 
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