Turbo discussion 400+hp
 

I'm trying to decide what turbo I need to get for my goals. I'm back and forth on what I should be running. I'm looking for decently quick spooling t3 turbo to get me to about 450 hp I've got my eye on a 3076r but should I go for a gt35r or a holset hx35? I've been looking at dyno results and build threads I'm looking for someone has some experience or played around on big turbo miatas!

I currently have 95 block and head
Skunk 2 intake manifold and 70mm tb
T3 log manifold
Je 9:1 84mm pistons
Scat rods
Exintake cam swap and gears
Super tech over size valves inconel exhaust and stainless intake
Super tech dual valve springs
Ls2 coils
Be oil pump
Acl race bearings
Ms2
Id1000

efr6758

Looking into it now thank you!

Have you ever ridden in, or driven a high powered Miata? Say 300whp+......
My goal when I started was 270ish. As it turned out I did things right and when it is all said and one I should be close to 400. I can't even imagine setting the goals on my first miata build above 400....my car is a beast at 300+. With a well built 300whp miata you should beat all 450whp miata's in 98% of real life situations. The smaller turbo is going to spool quicker and give you faster use of your power. Above 300 your limiting factor is rarely hp, it is usually traction. My advice, do more research. Find people in your area and ask for a ride to see how the different cars deliver their power.

i think soviet has about 400hp. he may be a guy to ask. dcvn also has very long lasting 3xx hp on stock engine. i know e85 is great to get a small 1.8 motor safely into 400hp range. but like they all say, maybe spend the money on better upgrades like a transmission because they go boom well below 300hp. your going to need very wide expensive rubber to get the power to the ground unless you just love loosing traction. im working on a budget build and will be ok with 300whp, i been in 2, 300whp miatas and thats about as fast as i want to be. the 300whp miata beat the super snake 500hp mustange and after my buddie did that i was looking on building my miata.

I currently own a little turbo Miata I picked it up already boosted so it's "stock" to me

Needless to say it's getting a little boring at 200ish hp and I don't like the way it was done. The only way for me to feel like I actually did something is a crazy build my way. I've ridden In or driven a few ~300hp ones there fast no dought. I just want to feel like I really did something and I'm a little nuts I guess. Gary The guy that owns track dog racing (There local for me) asked me if I was "fucking retarded" in his office.

It gets pretty dicey at that level, but what the hell. I am all for it.

You may find that the cost of getting the chassis to work properly at that horsepower level is going to cost way more than you think, and I mean by a lot. Something to think about.

.

After driving my car with the new setup...I have ZZZZEEERRRRROOOOO Idea how you guys on street tires drive all these 300+hp Miatas. With 275's and on concrete...I can spin the tires at will. Even in 3rd gear you better be pointed somewhat straight if you want to just "nail" it. At the Blytheville Pro Solo practice course I wanted to play around and take a few runs with the racelogic turned off. There was a slight kink before the finish and from about 45-50mph I left two solid 275mm wide black marks from there through the finish. I know what my car makes...and I can tell you with 100% confidence it would be USELESS on street tires.

I'm kind of with you on that. With only the 250 or so I'm making 2nd gear on streets = I floored it and all of a sudden I'm sideways in a straight line (without the wing on). I think there's only 2 reasons to have 400+hp in a miata, because you can and want to compensate for your tiny penis, or because you want to have an $80k-$100k road race miata on 275 slicks, in fuckall class. Or you want to do pulls from 100mph to 150mph on the highway (aka you should have bought a supra).

No, it's because more is never enough.

:fawk:

There's always more. If more is never enough, then too much doesn't exist.

You guys realize the probability of OP actually doing this is like 5% right?
I mean the kid sounds clueless, just like the other 100000 people that asked this question before. The amount of people on here with 300whp miata's is not every high. Even less 350. 450 guys you can count on one hand.

Check the threads in the past year or two of the people that asked this question vs the people that completed 400+whp miata's.

Its cute

Well yeah. It's not about him anymore.

It stopped being about him as soon as he mentioned the turbo choices he did and the theoretical motor build, both of which showed that he had done no research whatsoever prior to asking his question.

excellent point

This. Surprised he didn't ask how to "drop a 2J in it bro."

he says he "has" that stuff.

does not say he has "clutch and transmission that will last more than 5 minutes"

450hp is right around 375whp, which you could achieve with EFR 6258 and E85

From my experience the minimum list of parts for that is:

1. Forged rods
2. Forged pistons
3. ARP main studs
4. ARP head studs
5. Billet oil pump
6. 99+ head
7. A good exhaust manifold
8. A good intercooler
9. Borg Warner EFR6258
10. 3" downpipe exhaust, straight flow muffler
11. DW300 or Walbro 450 E85 fuel pump
12. 1000cc injectors, preferably Injector Dynamics
13. Megasquirt or equivalent non-shitty ECU
14. LS coils
15. Some luck from the stock crank pulley (you need a lot of finesse to keep it from shearing) or preferably a SuperMiata or ATI Damper
16. 6 speed tranny
17. E85
18. 25+ psi

These parts are REQUIRED

Everything else you have on list, such as springs, valves, exhintake, throttle body - are nice but not nessesary. I made 450whp without any of those things and so can you! They will make your car more reliable, though.

If you want to make >400whp then swap out the EFR 6258 for 6758 and don't use DW300 pump.

I thought this was why you buy a big assed Diesel truck?

Keith

Honestly I want a big assed Diesel van to tow the miata around, not to show off my huge penis.

I must confess I have a crew cab F350 Diesel with 8 foot bed. It is the tow vehicle for my non-miata project vehicle :)

Keith

400+ hp miata is awesome traction is 100% the killer. My car hooks with huge slicks on it. I cut the hell out of the fenders and stuffed some hoosier 26x8.5" tires under it it gets traction all the time. On the street I run Mickey Thompson et streets and even those strugle to put the power down below 60 mph. If you want 400hp listen to soviet or do an LS swap or something like that. But I can only say that if you really really want 400hp be prepared for tires and rear axles. With good street tires my car is a hunk of crap. Wheel spin like crazy all the way thru 4th gear. I am talking 90 mph violent rev limiter banging wheel spin. So that being said I love my car and how fast it goes and to me it still seems slow because all the guys I have out with have 650-1000hp cars lol

Really, that is your idea of supporting mods?

You have to ask yourself some of the following questions.

When you step on the gas four or more times, what parts are going to explode or fall off the car?

Will the car actually move in a forward direction efficiently with the power you are putting down?

Will the car actually stay on the road when turning?

If the car does leave the road, will you live or die?

Gary is right. For more than one reason.

I like Gary.

+1

What's funny is he's not even a turbo guy. :giggle:

Oh I didn't see that.

Oh I didn't see that either.

Good luck. Please document how daily you drive this car after it has 450hp. Or rather how it is more of a "daily repair" car.

This thread really could have been finished after 18PSI's reply.

(I'm back)

So how many people running over 400 WHP that you guys can think of?

I'm at 490hp/400tq

details

That's an insane amount of power how do you keep it all on the ground??

https://dallas.craigslist.org/dal/cto/6151385247.html

I can dead hook a 40 roll I 2nd gear with these toyos but it takes alot off throttling off the line too get the car too hook on the street

Wow dude good for you! Awesome.

I'm trying to get to 450WHP. I think I'll be happy there. I'm already @ 410WHP just need to squeeze more juice out of the lemon, no pun intended.

thanks! Honestly I'm already bored with it I need too do longer gears and larger injectors and crank it up too 35psi and see what I can make

How much boost you pushing out now?? I might have missed that detail in your craigslist listing.

what's the details of your setup?
cause I really doubt you're making 490hp.
and by really doubt, I mean I'm calling BS

Are you running a coolant reroute or a damper pulley?I

stock 1.8 brakes?

Just search miata on Dallas Craigslist.
He's trying to sell it.
I couldn't make heads or tails of the "dyno chart" but it may be because I'm unfamiliar with that software...
Not appealing to me. NA8 based
He just updated his post on CL for YOU 18PSI!
It is first on the list

https://dallas.craigslist.org/dal/cto/6151385247.html

I mean, 440whp mustang dyno at 28psi with a 3076R seems ok. Right at 90%idc limit of ID1000's on E85 (with raised base fuel pressure).

I just realized you told me I was clueless and wouldn't be able too do it hahaha

it made 440 on a mustang dyno on e85 at 25lbs and made 490 on a dyno com same boost level stock 99 balancer after I had 3 1.6 lnc pulleys come apart my injectors are maxed out currently at where it's at now

i have plenty of videos of me running some fast cars and hurting some feelings

I'm sure it's making good power, I'm just calling BS on the moon dyno plot showing 490.
Post up videos. Hopefully one of them is at the track showing trap speed. If that lines up with your power claim, I'll stand corrected.
I've tuned dozens of id1000's and have yet to see them hit almost 500whp on a basic 1pump fuel system without hardwiring and supporting mods.

I'm sure it's a fast car. But we're not m.net or clubricer, we know what it takes to make big power.

The one pump is hardwired with a relay on the dyno com dyno it was dropping voltage down too 11.2v and we maxed it at 460hp with the relay and 50psi base it got too 13.5 volts till redline and made 490 hp the dyno chart on my post was when we where setting boost and after we cleared the overlay and fine tuned fuel and timing and kept it making the same power

There is only 1 1/4 mile track in dfw and it's a hour and a half away from me and i work 6 days a week so I'm never able too make it too ennis my only chance too enjoy my car is on the street I've beat plenty of cars enough for me too believe its making 450-500hp