What is needed to run big power such as 350 or 400rwhp
 

Hi

I am wondering what modifications would be needed to run 350 or 400rwhp?

At the moment I have:

Greddy turbo
Emerald ECU
FMIC
550CC injectors
FM 2.5" Exhaust
Torsen diff + shafts and prop
Spec 2 clutch and 1.8 flywheel

I have the belfrab racing kit to fit to a spare engine and will be putting forged internals in.

I know the Greddy unit wont run much more than 250rwhp.

What is the exact needed modifications to reach 350 or 400?

cheers

question is not relevant to a educated discussion about turbocharged Miata Please discontinue asking these general questions which make no sense. Thanks

Also a good tip for you would be to research and search. Reading is useful in this forum.

good luck to you,

You'll need a V8.

short answer: none of your parts will do. Seriously. None of them. Except for intercooler if it is large enough - a FMIC could be the size of a waffle or a pool table.. way to be specific.

a human can produce about 1/4th a horsepower, so you're going to need at least 1600 legs.

werd.

we are in America so make that 3200:laugh:

You'd do well to get the Greddy to 250 hp, not to mention passing 250..

I say max out the Greddy, then re-evaluate your goals.

rwhp??? I thought Miatas were front-wheel drive?

Mine is.

Mine is left wheel drive what NOW :loser:

I've herd pouring sugar into your gas tank will give you around 100+ hp, hope that helps.

the belfab rods will hold.

Dude build up the engine to stay together at about 25-30psi. Maintain a decent A/F , ignition timing and EGT temperatures.

I'm going to try to make a meaningful reply here.

To the OP: if you genuinely want 400 RWHP, and this is for a street application, you're going to need a Chevrolet LS7 engine, a T56 transmission, and the differential and conversion kit of your choice. The Belfab parts and your spare engine, along with your current engine, transmission, diff and axles can be sold to partially offset the cost of this conversion.

^Spoken for truth.

How long do you want to make 350+ for?

serius man do some learning and maybe even get a ride in a boosted miata i think you are pulling numbers out of your ass and need some prospective.

U need Nawz, 2 of the BIG one's :nxsmile::nxsmile:

:noob:+:loser: = :jerkit:

No, I've seen the way he drives. He'll blow himself to pieces.

someone plz lock this it is going nowhere.

Its not going nowhere, not only can we abuse the OP for being a douche, but we've also got a ban underway as this other moron newb has responded to at least 2-3 threads with "cool" :loser: :facepalm:


y8's---Do it, do it now, and enjoy it.... Pop that ban cherry

Really though, if amount of time at 400 hp is not a priority, I bet we can do it pretty easy!

A desire to educate yourself enough to learn what those modifications are. Start reading.

you're a ------ and I'm going to beat your ass if you keep posting.

A V8 is not needed, but I'd say that only the ECU will survive the cut for replacement parts.

FM 2l stroker, low comp pistons Disco potato, WI and pretty much everything will get you close.

The home of slowmx5

Owner of the car occasionally posts on here, though he keeps quite a low profile/is very busy!

Well shit I thought all were a least left wheel drive. Mine is left AND front biach.

Ha! This is the reason I didn't fuck around with my parts selection. He is out all that cash for parts that wont reach his goal.

ibtl!


seriously.. go find someone that will give you a run in a boosted miata... at 200 hp, they are contenders with lightly modded mustangs, camaros, etc.... 250 hp is almost scary.

if you REALLY wanna make 300, rebuild with better rods/pistons, get it up to 250 hp, tune it WELL, add nitrous...

or just put a 150 shot on your 150hp miata, and blow it to bits... we dont care.

fuck the haters...I want a 700whp rotary in MY miata

400HP has been done on a BP motor, the purple minimonster. It was a stock block at one point to boot. Then again, that car was not exactly a 'street' car.

Big turbo, NOS, engine management and fueling, RX7 drivetrain hardware from the tranny back. And a lot of time and money to fix 'sploded parts. These are the requirements to reach that kind of power in a nutshell.

nearly 600whp has been done...

MX-5 Miata Forum - 50 Trim Record!!!


just hope you have lossa money

50 Trim?!?!?!?!?!? as in the Disco potato 50 Trim? How the hell did he make that much power with that turbo?!?

IT'S SORCERY!


Edit: NVM... It was not a T25 turbo.

No shit. :noob:

Funny you mention that. My car came with a bunch of receipts and old documents, while looking through that i found a sales receipt from a dealer in Louisiana saying my car is front wheel drive. :laugh:

Jees a lot of you get uptight from me asking a simple question.

I did search and have been reading the forum for a while.

I currently run the greddy unit at 15psi, but the valve stem oil seals are gone, hence why I have bought the forged pistons as rebuilding a spare engine to go in.

My subaru is running 550cc injectors and is 400bhp so I though those, the ecu, fmic etc would run that power. The only thing I knew wouldn't would be the greddy turbo.

Looking through some more posts this afternoon there is quite a few people running over 350hp on their cars with not much more than me bar a different turbo.

I didn't expect the abuse and childish comments. A simple answer would have been suffice. If you didn't want to answer, then why bother posting?

Statements in bold are contradictory.

To the OP, from your language and choice of some parts, I think you're based somewhere across the pond - UK is my guess.

Not that it matters a lot, but your availability of parts might be different from what we recommend over here.

Like Joe has said before, the thing that makes most sense at that power level is an LSx series engine.

For a 4-cylinder, I would say a K20 series or F20/22 boosted engine is the best choice. Lots of people making 350 whp with the stock bottom end with zero reliability issues.

Hi

Yes I am from the UK. I know some of the parts wont be available here, but I can order them from outside the UK. I know the exchange rate isn't too good at the moment, but that doesn't matter.

I've seen a post with this spec of engine. The guy says he will reach 400rwhp

Stock head no work
Stock intake manifold
Stock block
KnockSenseMS
GT3076R (With t25 flange)
18x12x3 ebay intercooler
ETD Dual Feed Rail
1000cc injectors (low impedance)
Walbro 255
3" straight pipe exhaust
Water injection (probably devil's own)
Godspeed radiator (if and when i need it)
01 6 speed
kaaz LSD or ford 7.5" rear (havent decided yet)
Energy suspension bushings
Chromolly cage
Driveshaft loop
Scattershield

Where can I get the GT3076R (With t25 flange) & ETD Dual Feed Rail from?

What manifold will I need to use the GT3076R as I don't think it will match up with the greddy one?

cheers

Wait, who's gonna make 400rwhp on a completely stock motor?

Nobody is hitting 400whp with a stock motor, end of story.

I think there's someone on here who's going to try it, but he's expecting to blow up his block anyway.

edit: Good thing your buddy has that Chromoly cage and Energy bushings, I think that's probably what we're missing over here

:facepalm:

do the shit with a t3 flange your greddy stuff wont even make laughing distance on 400 hp.

stop posting.

haha sav

you need to take some cues from the smelly hippies. just chill out mannnnn

Seriously a v8 would be best and have the least bit of reliability problems. Thats what I hope to do once I get out of college. Plus, v8's just sound so damn good!

Ok frog you seem to have owned cars etc and bought stuff other people told you to buy fine. The thing you are failing to understand is well the whole concept of turbos in general.
Making inquires on wether you can run a 3071 on a td04-h manifold is simply ludicrous. For one the 3071 is a good 30+% larger and not a mitsubishi family design bastardized to fit a niche kit. If you want an off the shelf solution for your power gaols then Flying miata or begi can take care of you quite handily. Given that you have the cash of course.
The most of us here are into making our own inferances and trying things. It is that lack of initiative to educate yourself that bothers us. Saying that a WRX u own with a 2.5 liter and turbo a good 25% bigger than your greddy can make 100 more hp than stock given more fuel etc is a rather well retarded statement.

You are dealing with a car that makes 100-120 whp on the 1.6-1.8 liter motor and trying to triple the horsepower. To equate the power gain what you did with the WRX is equivalent to us getting 150-160 whp. To equate a 350-400 whp miata your wrx would need to be pushed to 900+ whp to simulate the percentage gain you are dealing with.

irtbs! i hear they are way better then itbs and will get you close enough.

A GT3071(wg) has a T2 inlet. It will bolt onto the GReddy manifold. You're on your own with the downpipe though.

Me.

Thanks for your reply

Regarding my WRX. It is actually a Jap spec '92 car so the original power was only 235bhp. I run it for a few years with 550cc injectors, 18g turbo, 3" full system from turbo back, ported headers, induction kit, fmic, apexi power fc, apexi avcr to name a few of the mods. That was dyno'd at 330bhp/305lbft

The bottom end went and the best option was to fit a 2.5l short block new from subaru. With the same mods, it must be just shy of 400bhp. I could fit a bigger turbo and get more hp as the engine should be good for 465 at the crank.

My mx5 has been turbo'd for a year with the greddy turbo kit. It is still the standard clutch in it and it mostly slips over 5k revs. I have clutch, fly and torsen diff to fit, but I've only done a few thousand miles in it since last summer when it was turbo'd. The winter hasn't been too good here and I have 7 other cars to use so parked this up for the winter.

Now with the better weather setting in I am looking to rebuild the engine as the valve stem oil seals have gone and I have a spare 1.6 engine and already bought the forged pistons etc.

I was hoping to build a 350/400hp setup here hence the original post.

I was looking at the following setup for my 1.6
Belfab Racing bottom end kit (Supertech Pistons + Pro H Beam Rods)
GT3076R
Emerald ECU
FMIC
1000cc injectors
FM 2.5" exhaust system
Walbro 255
Aquamist 2D Water injection + DDS3 Display
Coolant reroute

I was going to use the standard valves. Do you think this would be ok, or would I need the supertech ones too?

thanks

The latest plan you laid out seems very feasable. Valves etc are only going to be an issue for you past probably 400+HP and 8 k or better rpm redlines where you will probably be impeded by flow and a generaly to small lift from your cams etc.
So long as you grab a clutch type lsd for you differential (becouse torsens will cry at 300+ hp) and i would spring for a 6 speed transmission as those are the stoutest avialable to us of the shelf. Otherwise looks like you can definatley do 400 hp with that above listed items. I look forward to some pics once you get it done and start shreding pavement.

Now that this thread actualy has some real meat on it lets try to not rag on him to much guys. this thread has been :magna: enough

thanks for you comments

A couple of quick questions, where can I buy the GT3076R turbo? Where can I get a manifold and downpipe to match?

will these injectors fit fine? eBay Motors: RC Fuel Injectors Mazda RX-7 RX7 Denso 1000cc 1000 cc (item 360142981298 end time Apr-27-09 17:07:13 PDT)

they should but you will have to swap the pigtails out.
How the hell are you gonna controll them :2cents: :giggle:

I think even a Motec or tec 3, or a haltech would have trouble with those on a 1.6-2.0 liter. Begi has some very nice of the shelf options and will most certianly be able to accomadate you on the phone or by email.
Unfortunatley all the sources i know of are in the US and your shiping and tarrifs will make them alot more expensive. Alot of my freinds overseas like to have there stuf sent to a local American military base where your buddy can get you the stuff for about 1/2 the shipping price.

I dont work for begi or have any affiliation with them. I am just resounding what I have heard and seen from them in the past.

On a side i would look at maybe some 650's at a bsfc of .65 they should get you to 380 hp at there flow rated psi. But if you bump the psi 5-10 while in boost you should be able to make out 418 or so hp. And more general improvements come about as you lower your BSFC for example with the aforementioned psi bump and a bsfc of .6 you have the headway of 453 hp
The RCengineering site RC Fuel Injection and the witch hunter Fuel Injector Calculator from WitchHunter Performance sites will help you to better understand fuel injectors and the choices ahead of you.

deatchwerks will be offering 1000cc injectors in the future according to a thread on here. Adaptronic as well as ms and hydra should be able to control those afaik. A gt3x turbo can be found just about everywhere, so that should be no problem. For a manifold I'd get something similar to the ramhorn that JayL is running on his monster setup.

lol name one person running a injector bigger than a 800 cc injetor on a miata on the streets?

Me, very soon...

You have a good point. I really dont think he'll need anything bigger than 800's either, but if he MUST have something that huge that is where he could get it from in the near future.

I've seen plenty of cars make 400-500whp on 750's, so 800's should be more than enough. 1000's should be good to about 600whp or so imo.

where did you come from? Damn you debunking my point :loser: