aidandj

iTrader: (5)

ftfy

patsmx5

iTrader: (16)

You called it on the glide a long time ago, so I won't question it this time.

farpolemiddle

So I am not downing what you are doing here. It is pretty cool but at a certain point maybe this is the wrong platform for what you are into.

aidandj

iTrader: (5)

Pat doesn't care. He builds stuff for fun. A fox body would be boring.

​​​​​

patsmx5

iTrader: (16)

This. Just having fun.

The good news is this trans should be so overkill I never have to worry about that ever again. I will obviously never push it to what it's capable of with a BP, but at least it will be overkill and never break. Also it's safe to spin to 8,500, a lot of automatics cost a lot of $$$$ to spin that fast safely.

I think the next car I build will be a camry. Or my C63, but leaning towards a camry.

codrus

I think you should build a Prius with a turbo LS motor in it.

--Ian

farpolemiddle

No *****.

18psi

iTrader: (76)

didn't I suggest powerglide pages ago? lol

*edit: yep sure did

aidandj

iTrader: (5)

Yeah, i think he was referencing when i told him to get a power glide like a year go lol.

aidandj

iTrader: (5)

So have you actually broken the auto trans? Or do you just think you will.

18psi

iTrader: (76)

oh snap lol ok you got me beat

patsmx5

iTrader: (16)

First one had problems out of the box, it failed a line pressure test. It slipped bad at only 20 lbs.

Second trans I did some valve body mods to it, and it did great at 20 lbs, but it slips at 25 even with torque management. It gets at lot worse at 27 PSI.

There is no doubt if I tried to run 40-45 pounds no torque management, it would hit the limiter and stay there till the clutch packs caught on fire, or fell apart.

It's like when your stock clutch is slipping at 8lbs boost, you don't try to run 20, you can't till you fix the clutch with a better one. Better in my case is gonna be a glide.

18psi

iTrader: (76)

You know, since you're spending so much money and time, you might as well have a goal.
How about: fastest miata?
Or how about: highest HP BP?

You'll have to visit a real quarter mile drag strip, and hit a real dyno, both of which might be a deal breaker, but if you actually did it, you'd actually have a title of some sort.

I say this completely seriously, not joking. Why not set a serious goal that can be measured and proven?

patsmx5

iTrader: (16)

I was trying to keep it more street friendly, but after seeing the stock box not take as well as I hoped to mods, I tried to do a cost/benefit on building this trans to the max.

Custom clutches made by Alto ($$$$) unknown but probably a grand for one off parts. They charge 600 for on the shelf.
Pay a pro to build it (3,200 parts and labor, +about 400 shipping)
Custom converter (800)

And the "Pro" said he wasn't sure if it would hold 350whp after all of that. Said he didn't recommend building this box.

That option I spend a ton of cash and then have no idea how much it would hold, or how reliable it will be.

Or do a built glide, I know how much that will cost, and I know it will be overkill for my HP. Only downside is 2 gears not 3 + overdrive, and now I gotta do a custom bellhousing/converter/driveshaft/crossmember for trans and diff, and probably a few other things. Cost is about the same, glide is lighter by ~50lbs and wayyyyy stronger.

I could build the miata auto and it be awesome, or suck and then I wasted a lot of cash and still need a trans. At least if I do a glide now, it's done and this is never a problem again.

aidandj

iTrader: (5)

Highest hp BP would be crazy. Isn't it the Florida guy with an FM stroker.

Would need moar rod. And billet mains I bet.

18psi

iTrader: (76)

I think highest is 800hp? some guy in europe or something?
also there's the drag BP NB which is around 800 too.

Pat can do it. I know he can. If he spent all the money and time he has thus far in hitting either of those goals, he'd already have at least 1.

patsmx5

iTrader: (16)

I do have a goal, just not those specific goals. It's a street car. I could probably make some big power with it if I tried a little harder (not run ebay everything and all emission equipment and cat). I think I will be able to make about 600whp with the current setup and it be street car reliable. That's basically the goal, make it fast and reliable. Not just fast car that I trailered to a track and ran it hard once, or made a sweet dyno pull but then turned it down for reliability.

Also I hear they don't give tickets for anything in the 9's or faster in the 1/4 without a license, and I don't plan to go that route with this car.

aidandj

iTrader: (5)

Take it to the Texas Mile. Claim fastest Miata? Or at least fastest bp?

patsmx5

iTrader: (16)

I skipped billet mains, I have the rods for it.

I think that motor lasted about 3 weeks before it let go, the europe guy from a couple years back.

Didn't know about the other one, any more info on that?

I think if I wanted to build it race car fast, I could make it go a lot faster. It would not be a street car at all any more though. I don't think I could build it to 800whp and reliable enough to run it like that every day on the street. I think I can do 500 or 600 though. 800 I'd probably need race fuel and get rid of emission equip, and bigger turbos.

patsmx5

iTrader: (16)

I do want to do the Texas mile. That could be a good goal, run the car at the texas mile next year. I would need to do a lot of aero stuff for that, and a 3.63 diff or ford diff with numerically lower gears. 4.10's with no overdrive won't be going too fast up top.