Tragic loss to a Mustang
 

A friend got a 2012 Mustang 5.0 several months ago and we've raced several times. The first few times it was a pretty easy win, but he's been catching up fast. It really is amazing how much faster these things are than the 4.6's, I guess +100hp will do that.

The Mustang now has intake, exhaust, tune, 4.10 gears, dyno'd 412whp, with slicks and skinnies. He got me off the line, as expected, and just kept on inching away. Sucks that I lose to a Mustang GT with boltons, I guess this is for all those "OMG a 300hp miata is the fastest thing evarrr!" guys. 0-120, he's probably 3-4 cars in front by the end.

Hows the weather been down there? Up in MI, we've had 95f+ degree days with super high humidity. My car feels like it's lost 50hp when the weather is this humid/warm. Much less noticable on a na car.

I don't even like driving mine unless it's in the 70's or cooler.

I was expecting worse considering the rubber he's on.

Your car is very fast.

Use the boost, Luke. Don't let go Luke.

300whp miata is pretty damn quick. Mustangs are pretty much drag race kings, I'm not sure what your point is. You can get a mustang into 10's at well over 120 on like 4 mods, not exactly a fair comparison to a miata.

You need MOAR BOOST:)

^ Just sharing another video. Maybe it's more of the CR crew viewpoint, but does seems like a lot of people think that a 200hp, or 250hp, or 300hp, or... miata is invincible. As manufacturer's continue to step it up I feel like we're obligated to try to keep pace. Obviously a miata will never be a drag car, but it's fun to try to keep up with the straight line guys. It's just a little sad to lose to a bolton mustang gt.

PS - My MAP sensor seems to be maxing out a little over 250kpa, so I can't "moar boost", noooooOOO!

I bet you would've wiped your ass with my friends LS1 camaro. He had 4.10 gears, slicks, and a 125shot...and an air box and a flow master catback.
I think it went mid to high 12's. The car was a pos though. You would've smoked him I'm sure.

WOW those things wake up with mods.. I've beaten a new 5.0 with my 1.6l greddy setup.. maybe 220whp? I'm also HIGH altitude (7k+ feet) and NA cars just choke up here.

Either way, your car is still fast. Needs more boost for straight line domination though. That is why i gave up on my miata ever being a really "fast" car, and now its more of a canyon/hooligan car. I love it.

I think the "invincible" argument is set in place to counter all the n00bs who figure they won't even begin to be fast until 300+ whp.

get a 4 bar:)
I know what you mean, and I agree that we should try to "keep up", but lets face it: our engine was designed 20 years ago, and even then was one of the "less advanced" technology engines.
you just can't compete with these absurd-flowing aluminum monsters with all kinda wizardry like DI, vvt, and the trans/clutch to handle 400+ whp without breaking a sweat.
more so the ones that
1) don't know what it takes to make a reliable 300whp on a miata
2) WILL NOT be able to handle it and put it into a *insert object here*
3) just saw the fast and the curious and want to replicate it in a miata

Here's your fix - MapDaddy 4 Bar MAP Sensor with Barometric Correction DIYAutoTune.com

400kPa map sensor :)

It's a 25-year newer car with 250% more displacement, tons more tire, a usable 1st gear, and its hard to brake the drivetrain. Sadly, with enough tire and good shocks, they're faster on a circuit too.

I was pretty disappointed with the 5.0 at Lime Rock Park. My friend has a '11 with a tune, some decent street rubber, and some other light mods. He was fast, but was overheating his brakes like CRAZY. He was braking at the start/finish line while I was going extremely deep into turn 1.

You're complaining about "racing" a car on factory brake pads? Come on.

Hey it felt good for my little shitbox with 170 hp (7psi t25) to blow buy him before turn 1. Who cares if I just happened to weigh sub 2400, have DTC-60's and willwood 4pots. LOL

I am sure that if it had the stock Brembos or even some decent pads on the normal brakes, that car would have been pretty great all around.

My neighbor took me for a ride in his '12 5.0. I'm a pretty crazy driver on the street and this 45 year old guy scared the ---- out of me through some clovers on the interstate. Corners that I wouldn't have passed 60mph in a built miata "on rails" we blew through at 75mph with a bone stock car. Gotta tell ya, 6000rpm WOT sings like a sewing machine...

While I hate them, still have to respect what Ford (of all companies) managed to do. The interior was pretty damn nice as well.

Perhaps a cost comparison would put things in perspective- How much more does it cost him to beat you by three car lengths? :D

Guys, newsflash! Our 90's shitboxes can't womp on everything.

why spent $40 on that when a drop-in replacement 700kPa MAP sensor is $7?

Cause Barometric Correction?

(Link to $7 700kPa sensor?)

700kpa = ALLOFIT?

pdexta, you will probably 60 just as hard as the 5.0 if you had skinnies and slicks. Maybe better.

I think you did pretty well considering his tire and gear setup.

Because a 400kpa one is more accurate :jerkit:

250kpa sensor:
MPX4250AP - FREESCALE SEMICONDUCTOR - IC, PRESSURE SENSOR, 20 TO 250KPA | Newark

700kpa sensor:
MPX5700AP - FREESCALE SEMICONDUCTOR - IC, PRESSURE SENSOR, 15 TO 700KPA | Newark

And Scott, just for you:
MPX5999D - FREESCALE SEMICONDUCTOR - IC, PRESSURE SENSOR, 0 TO 1000KPA | Newark

Just JB weld a nipple fitting to it.

no 2000kpa no care

I lied, it's $16.

buy two and a 1K resistor, a .22uF and .1uF cap and you can run baro.

MPX5700AP Freescale Semiconductor | MPX5700AP-ND | DigiKey


the MPX4250AP is accurate within 1%, the MPX7000AP within 2.5%. Good enough for me, so long as it's consistent.

I'm pretty confident that I could severely screw something up by trying to swap out a map sensor. I'm better off with the 250kpa sensor anyway, I need something to stop me from turning it up more.

If you can screw up soldering 6 pins, I feel bad for you :)

Don't get too cocky with your soldering s-kills.

i never said i had any :) I honestly have no idea if I'm doing it "right" or not.

That and aren't you still on the 2860? I'm pretty sure its in the upper limit @ 20+psi

Dude you are doing it wrong.

250hp miata is the fastest thing on earth. Not a 350hp miata. That is just too much.

Nope, YOU'RE wrong: broken down never running 400whp miata is teh fa5t3rrr

No when I was at "400hp", in general, my car worked.

:(