BP turbo setup fill the gaps
 

hey guys iv been looking around lots of different mx5 forums and trying to decide and work out parts list to build a turbo mx5. car will manly be used for daily driving but will be also used on track would like to first run the car at 200whp to get use to power and make sure everything is running fine but I know I will push the power up quit quickly stopping somewhere just south of 400whp

so far I have decided on a BP engine
p&p head
supertech forged pistons and rods
megasquirt stand alone
t3/t4 .50A/R (already have brand new one sitting in box)
and id also like a lsd

now I have read a lot of people are running 550cc injectors for anywhere ranging from 200-350whp is that right? also will fuel pump and radiator need to be upgraded?

does anyone have recommendations on intercooler?

also what else will I need for this set up to run/ run reliably

sorry if this is the millionth time answering these questions

Lol, what?

We yell at people all the time for this.

Do you need us to build your car too?

I know the search button is my friend. as I said I have been looking around the forums and yes my questions get partially answered but always under different set ups. so I thought it would be better to ask about my specific situation before I go blow all my money or an engine. once again sorry for newb questions

Lets look at it this way.

If you're going to track the car, why not just get everything, and the best of the best?
Or maybe just skimp out on parts so that maybe you'll blow the engine, then send parts down the line into your expensive turbo killing that too...

You're asking if the radiator needs to be upgraded for 400whp.... Come on man...

it would very rarely used on the track maybe 6 times a year other than that it will be a daily. I don't mind spending money to build the engine right I want to get at least 100,000km out of it pushing it abit. iv also read that the gearbox wont last long over 250whp would swapping in a 6speed handle up to 400whp

Your specific situation is not special. Go look at what other turbo track cars do, then do that.

sell your turbo and get a
B-B-B-BORG W-W-W-WARNER S366

okay, fae.

400whp track cars with BP engines? That are also a daily driver? Because it is your only car? Seriously, are you trolling, just that fuckiing stupid, or just too damn lazy to have looked at all of the hundreds of reasons that won't ever happen?

Oh, only maybe six track days a year? Yeah, that's not worth upgrading your radiator over. Probably not your brakes either.

400whp on the track and also a daily? It won't. Ever.

aftermarket damper, billet oil pump, ARP everything, MBSP, braced manifold and a welding guy on speed-dial, v-band everything, inconel everything else, reroute, e85 or very careful tuning, a pile of 6 speeds and finally a new block in a few years

One of my customers is doing this.

Dann

On a 2560, right?

Nope. 2554 :party:

Based on the initial statement are you located in the US or another country? I say that because people here rarely refer to it as an MX5. It may affect your part availability and you may not have some of the cost-effective options that we have in the US.

I live in Australia. so every second car I pull up against at the lights is a 400whp LS1 commodore and the odd 600whp commodore GTS so I would love to be able to fly past them and see the look on there faces. im a panel beater buy trade so welding is no problem because I want this car on the street I will be running coilovers along with bigger callipers rotors and brake booster all of this put to the ground buy 10" rims running 245's on the rear and 8" rims on the front running something like a 225 or 215.

Buy an ebay turbo, weld the waste gate shut and run all of it. Dont be a pussy.

well I got the ebay turbo. bolt it on fuck waste gate and bov t3/t4.

Hey, I've got an idea. Let's build a turbo setup around a turbocharger that I already have laying around, because well, let's just face it: "Free" is better than "functional" any day of the week!!

Hey, dumbass, have you ever driven a 250whp Miata? That shit is spooky fast. You have no fucking clue what bag of worms you're going to pour all over your naked self trying to put "just south of 400hp" to the ground.

By the time your car is capable of making 400hp, the cost of buying a brand new turbocharger appropriately sized to your application is going to be a few pennies in the fountain. A 450hp capable unit is not the same as a 400hp capable unit on your tiny ass 1.8L Engine. On a 400hp tune, your 450hp turbo will be dreadfully slower than a 400hp turbo would have been all fucking day.

I'm going to help you out just a little bit, because I'm a nice guy and all. I'm going to give you some hints for your 400whp setup, just so you can almost begin to comprehend just how deep the rabbit hole goes. At 400whp you will not be using a mazda driveshaft...or a mazda differential...or mazda axles...and probably not even a mazda transmission...and you're not going to pay Honda prices for the equipment you'll use to replace those parts.

You're not in a "specific situation" that you get to ask about. You're in the "every other fucking newb" situation.

What the fuck is the deal with big "rims" on the front and little "rims" on the back? Is that some sort of australian fad or something? I think we may have went through that in the '90s. It's overrated. Unless you never plan on using the steering wheel to actually turn the car - just go straight I suppose.

Do you even know what a "rim" is? Here, I'll show you:

https://www.miataturbo.net/attachmen...ine=1377344855

I don't know, were you maybe planning on floating on air? Or were you seriously hoping that these things would be bound to the car by hope?

iv driven afew 600whp+ commodores running 315 tires that barley keep traction I was thinking smaller rims on the front as modification to the inner skirt would be needed if any larger. also running semi slicks wouldn't be a problem. sounds like you guys in America and the uk are a little bit scared of hp. I would haply sell the turbo if needed I didn't say it had to be that turbo. heres a video to educate you on the Australian way of life ;)

"Look at this car with a huge motor in it! This clearly means that everybody in Australia drives cars like this all day long!"
Cool story bro.

yeah most of those cars are road registered I can buy a HSV R8 with 425hp stock for under 30k. my next door neighbour has one as their family car and so does another family 2 doors down

Cool story bro. I can post videos of powerful American cars just like you can post videos of powerful Australian cars.

For 400 hp it's easier and probably cheaper to do a LS engine swap.

Dammit Fooger why'd you pick one that's actually an Australian car? :vash:

Oh god another Australian car discussion BS. Just lock this bitch asap.

Pretty much. OP, expect to spend ~$20k on drivetrain parts if you want a track-reliable 400whp.

Ding ding ding, now why did that take 20+ posts to figure out ;)

Do you really need the damper and billet oil gears if its not a pure track car?

I have been running ~300rwhp for 2 years now on new stock bearings and forged rods/pistons (supertech/m-tuned).

Use the car almost everyday and run ~7-8 track days and 2-3 drifting events every year.

No problems with the engi so far. Biggest problem for me has been gearboxes.

Also.. what do you need 400rwhp to? my car is at ~300rwhp and do rolling burnouts in 3-4 gear....

He doesn't need 400whp. He needs to ride in a car with like 250whp then say, "this is only 250whp?!? This thing is fast!!!" Miata people who say they need 400+ whp crack me up.

I would. The oil pump is just good practice for cars that see a lot of power/RPM. The damper is just as important at those power levels IMO - I've thrown a couple of stock dampers by breaking the four OEM grade-10 bolts at ~350whp, so I'd expect a car that sees regular use at 300whp on the road/track to do the same eventually.

Parts like throttle bodies, dampers, and oil pumps aren't required to make the power, but if reliability is important, they should be on the parts list.

Becuz arbitrary power numberz make me bonarz!!

Because some of us have tires worth a fuck.

No shit, even new RS3's hook 2nd gear in my V8 Miata. Granted, it's only a dyno backed 279/308 not the arbitrary 300 that myrando threw out.

6258 with all the supporting mods and the good stuff in an MSM.

Also OP is right when he says that every third family car is a cammed LS1, its a joke, 6L V8's are in every second grocery getter here..

Honestly, that video is not a huge exaggeration. Here we have powercruise and summernats etc, events when people show up in daily driven big block 70s utes and do powerskids, where you do a burnout with no brakes and try to make it a kilometre.
A fucking kilometre.

I know america is the v8 motherland but here every man and his dog runs his kids to the school in a 400hp sedan. Like, On my street my closest neightbours go

LS7 commodore-cams intake exhaust tune etc/5.0L commodore worked also.
WRX
323
Hilux
XR6 turbo (500whp)
LS1 commodore
Corolla
Mazda tribute/LS1 commodore
xr6 ute.

It goes on.

HOWEVER, I still agree with all of the yanks in this thread, My first guess is that OP hasnt been in a turbo MX5, come to newcastle Ill take you in a few, bring your mates HSV's, I dont mind making a bit of easy cash.

Dann

Re: damper in a high-hp non-track car.

Didn't Soviet throw his OEM damper after 1 dyno run @ 318whp?

That should make the answer obvious.

gotta love it when that big stupid thing gets walked by a 4 cylinder evo

:dealwithit:


3:30




OP,

were you trying to impress us?

I love how we suddenly have so many AU people on this site thinking they're superior

:laugh:

:noob:

Actually it fell off before the dyno pull even started. In total I broke 3 dampers . Now I have a 99 one that seems to be doing good. I torqued everything with surgical precision and thread lock everywhere.

Money spent on 3 dampers and pulley bosses should have been spent on a 949 damper but it didn't exist then :loser:

I dont get it, why are we always having some AU vs USA discussions when we're driving gay japanese cars with 200 hp?

Because despite what OP says, we all secretly long to put an LS into our Miatas.

because they are clearly superior at everything and we all just jelly