turbo miata vs 360 spyder?
 

hmm, so talking shit got me into a pissing contest. my miata vs a friend's 360 modena spyder in the 1/4. i told him my car would keep up with his, but at $200k less. we'll see, probably friday after next at the local dragway's run-what-ya-brung.

another buddy of mine is going to let me borrow his drag wheels/tires from his Honda. I don't know what they are, or what size, but if they fit the front of a civic, hopefully they'll clear the miata fine. so what do you think? my 255.4 rwhp miata w/ the hardtop on, slicks, and launch control vs his 360 with no roof and high performance street tires. i'm thinking both are good for mid to high 12s and that the better (or luckier) driver will win.

Just couldn't keep your mouth closed...

Should be fun

My prediction is your car would win if the rear end does not blow up first. You better swap the RX7 unit in before you try this.

I'm interested as well to see the results.... I've been thinkin about borrowing some slicks from my buddy also.....

I don't think I'll have time to do the rear swap, so it will most likely be on the 6" 4.30:1

I am planning on running the car up to the strip on the dolly (about 30 miles each way) just in case. Plus I am thinking of bringing a big cooler with a bag of ice to chill down the intercooler. Plus also I'm going to strap on some freeze packs to the throttle body side charge pipe.

hmmm .... it might be close but I think you will lose because it's not just the peak hp, it's the power curve that matters and his torque curve extends further into the RPM range than a BP ... let us know how it goes.

flawlessly the spyder can do the 1/4 mile in 12.8 seconds...but since his body is 176.3 inches long... and the miata is only 155.2 inches long...he's got about a foot and a half on you... should be good...update us

can he drive?

:rofl:

they don't stage in the beam with the rear wheels. wtf? :gay:

never run a suburban...they are too long.

I predict:

damnit i knew i would screw up trying to sound smart... should have just read this thread and been like :inout: haha, I gave it a good go.

downs syndrome?

I think his car could run better than high 12's. a perfect run for him should be in the low 12's. and I don't quite get the thing about the torque curve, apparently you haven't seen mine.

Jay may be right, that's why I'm gonna tow it in. Doesn't matter, the 6" rear is worthle$$ anyway.

is there going to be a tree with lights?

if not cheat and go first or a bottle of nitrous if that mofo starts pulling hard on you.....also can he drive?? or he just has a ferrerai for the appeal.

Good luck haha, keep us updated for sure.

Somebody is going to have metal soup!

YUMMY!!! my favorite...

what was i thinking Huster... so there is no benefit from having a shorter car? i'm not talking just on the track, odviously both are lined up evenly from their front bumpers. I guess having a shorterwheelbase would have something to do with launch...oh wellll... i'm excited this should be on some kind of reality tv show.

i think if you really want to whoop his ass and make him cry... I would do something with your rear end so you dont end up making a fool out of yourself. you would never be able to live that down from this guy.

you WILL break your rear. you might be able to sell it for a little, why waste it?

I dusted my rear in style.....I beat a 03 cobra in the process though. Make sure you film it, and put it on streetfire. 255hp and 6" rear is almost a guaranteed kaboom.

Ya you'll like like a star blowing out your diff and puking out gear oil all over the 1/4 :)

Yeah...
that thing is toast one way or another...reschedule until after you get your rear in? Or have a chance of a rematch? Because if you blow it and loose your going to have to go home with your tail between your legs...

If you just loose, you can say...oh well..thats life.

Make sure you film it!

what are you specs?

Well, you see, it is all about torque and how long you can sustain torque into the RPM band. I think the 360 makes somewhere around 400hp at 8500RPM ... which means he has 247 ft lbs of torque at 8500RPM - and peaks torque at 4750RPM which means he has at least a good 4200-4750 RPM around the torque peak point in each gear.

Of course gearing matters and such .... but my point is that in any race, a high flat torque curve deep into the RPM range is a great thing to have and the Ferrari is built to have just that.

haha you sound just like my friend. He wants to take down our friends C6 corvette after his plug in play MS gets dyno tuned

Maybe agree to a roll on start....I would like to see the race without a blowup.

Lex look at his dyno chart or any dyno plot for a boosted miata. We make more torque by 3000 rpm than you would at your peak being NA. unlike hondas we carry high torque very well across the baord.. Ben i think if you are any kind of driver and the track is worth a shit 12.6 or so will be your average performance. If the stars align and all is right maybe 12.2. How comfortable are you with your clutch? Does your suspension have enough lift in the rear to accomadate the sqaut? What kind of alignment do you have? Most definetly try for a best 2/3 or something so you can get a feel for the car before you stomp his ass. GL man also if your clutch can handle it and the torque is right for you you might try starting in 2nd, to save a shift. Also i found shifting about 100 or so before stock redline keeps us in the torque curve alot better :D Now go swat out a spyder.

Can Ben drive is the question. You'll run a 12.8 if you pull a good launch (1.7-1.9). If you pull a 2.2 60 you'll probably only run a 13.5.

Drag radials = hard launch = diff for lunch.

Frank

yeah i dunno miata guys must suck i see alot of 2.0+ 60 ft times here. I hope i can improve on that with mine when i get around to running it.

I vote for the driveline swap. It's a simple job- could easily be done a couple of nights after work. And you're gonna do it anyway. No doubt the 6" rear + drag radials is going to be a bomb. IMO, the drag radials are going to be the key hardware component in winning.

I vote for a driveline swap right after it breaks at the strip.

how @#$)(&^ awesome would that be?

"oh sorry diff broke, let me swap in another--back in an hour."

and the ferrari guy meanwhile is pondering his $200 oil changes.

The B6 and BP motors are very torquey, I know I have a BP and it's boosted - but the torque curve is not as well sustained and peak is lower than the 360 at 250whp. Our motors also don't like to spin too far past 7300RPM.

The 360 motor has a much better design, no arguing that, but I do think that the Miata's power to weight ratio could certainly make it a good contender in this case.

The thing that amuses me about this whole setup is what your bud in the Ferrari plans to say after the race is over.

If he wins, he can't really brag to his friends about how he beat a little girlie car at the track. And if he loses, he'll have to sell the car. It's a no-win scenario for him.

the power to wieght is exactly why he has a shot. We are moving less mass therefore we need less torque if he had a 4000 lbs buick he would need alot more torque and HP to make the numbers. Traction and driveline breakage are our defining limits not motor power in the ET department.

I'm proof that even with a 2.2 60ft a 12.76 is possible. Put some C16 in the tank and turn up the boost. That 6" rear won't like slicks and 250+ RWHP, I suspect it will break pretty quickly... but you only need one run.

My 2.2 60' are not just bad driving, but rather you can only put so much power to a pair of 205/50/15's before they toast.

Mark

this better make it to youtube

Ben sweet. A lot of people talk shit about miatas it would be great to regulate some of those cock suckers. Especially the cocky ones with expensive m3s,vettes,and ferraris. Good luck on the run but be careful with that rear end.

I would like confirmation from Ben that this event is being video taped!

I have a digicam, but no mount. I've actually never been able to extract video from it onto a computer. I've tried using both the firewire and usb connections. :dunno:
I have been able to record short videos on my treo650 and transfer them via SD card to computer.

I'll mix in some c16 fo sho Mark, but there's not really anymore room to turn up the boost.

I've never dragged the miata before, though I used to drag GM iron at Atlanta Dragway on friday nights. I'm going to need to get moving on wiring up the launch control switch.

when's this going down? ill send my mount with the FMU....

For your sake, I hope it doesn't grenade at a high rate of speed. That'd suck.
Here's the vid cam to broadcast this feat to the world.

Brainy you slack bastard. You're worse about shipping shit than I am!! Thanks for the offer, but I'll get it covered on my end.

I have a Samsung miniDV-some shit-er-other camera that I can let someone hold, worse case. I could always hook it to my standalone dvd burner, and then load the dvd into the computer. Problem solved.

Maybe this will motivate me to going to the 7" rear. Right now, I can tell you I'm anything but motivated to work on a miata now...

the camera mount will need to be below the rear bumper. I want to see the diff and the ferrari in the same shot.

you mean the diff chunks and ferrari exploding his clutch on the starting line

hahah I'm an asshole :inout:

It takes like 4 hours to swap a rearend. Seriously... do it. Don't make a slick mess all over the dragstrip... I hate when people do that...

This is going to rock. Don't worry about a mount though, have someone in the stands tape it. If you win and the camera was pointed out the windshield all of the youtube skeptics will cry foul.. not that they matter but better to be covered IMHO.

Yeah I hate the racing vids with the cam pointed out the window.. better to see the overview from outside.

the thing is built already, two hours tops...especially since he knows his way around the car....


Ben...this is a good angle...https://www.miataturbo.net/braineack/videos/1strun.wmv

can I reuse diff mount bushings or do I have to get new ones?

only need new ones if they are the rx7 ones....that rear was already on a miata right?

• you just gotta jack it up pull the wheels, drive shaft & axles
• unbolt the two bolts on the PPF, unbolt the PPF spacer from the diff
• unbolt the two plates over the mounts, unbolt the diff from the body mounts
• drop diff
  
• jack up new diff
• bolt up mounts, reinstall plates
• reinstall axles (if 1-piece design you may have to drop exhaust and insert axles before bolting diff up, then ease it up and bolt.)
• bolt back up the ppf stuff
• install new driveshaft
• torque down on the axle nuts the best you can
• reinstall wheels, drop car, torque axle nuts.

You need to add the following step after each of yours:

or in my case, curse and throw shit because no matter what stubshafts, circlips, seals I use, the diff still leaks.

haha Jay

I don't think it will be that bad. The control arms were a PITA on the parts car (fucking thing was in Germany then New England) but the diff isn't frozen in. It's still bolted up to the car, but the driveshaft, ppf, and hubs are on the ground. My 91 is a summer driven GA car, so no rust issues there.

Yah, it isn't a hard job. I had it done on/off in 4hrs with handtools/solo/first time wrenching on a miata and fighting tons of rusted bolts.

I hate midwest cars.

Do the swap.....

yeah please just do the swap... please

hohoho, Im glad i stumbled upon this thread.

::subscribes::

JOE PEREZ is right,the 360 cant win even if he does....please swap the diff if you have it.

the nuts and bolts are the easy part my frigin axle was seized in the hub and had to be pressed out via a 40 ton press. GL man it is simple and easy swap so long as nothing sticks. Also yes just reuse the stock c clips. Brain i only have tranny leak issues now. Damn thing is weird comming out of the fill plug. You can actualy do it all without taking the wheels of the car. so long as nothing is seized

How are you guys pulling 2.0+ 60fts? I was managing 2.1s with a FF car on street tires... and I suck at drag racing.