600whp Mazdaspeed3

I’ll be trying to hit that 600whp mark on a bnr s5 and big cams and a whole lot of methanol!

Mazdaspeed3 Engine Build:
Kelford 247-C2 272/278 Cams
Kelford 84lb Beehive Valve spring and Titanium Retainers KVS17X-T
Kelford DLC Coated Cam Buckets
Supertech 35mm Nitride Intake Valves
Supertech 30mm Inconel Exhaust Valves
Supertech Brass Valve Guides
Supertech Valve Seals
ARP 2000 Flywheel Bolts
ARP 2000 Crank Bolt
Manley 88mm Platinum .150 Wrist Pins
Manley H Tuff Rods ARP 2000 Rod Bolts
ARP 2000 Main Bolts
Freektune H11 Head Bolts
King PMAX Tri-metal Rod Bearings
King PMAX Tri-Metal Main Bearings
Damond BSD with Baffle
CM FX350 with Aluminum Flywheel
Xspeedfab 2.5 Timing kit with 50 Degree VVT

Bolt-ons list:
BNR S5 Turbo
Tial MV-R 44mm Wastegate
Xspeedfab Turbo Oil Feed/Drain Lines with Turbosmart Oil Filter
Xspeedfab Turbo Coolant Feed/Drain Lines
Xspeedfab OEM+ 180 Degree Thermostat
Koyorad Aluminum Radiator
Corksport 3.5-3in Catless downpipe
Corksport 3in Custom Single Exit Catback Exhaust
Corksport Stage 2 RMM
Corksport HPFP Internals with HPFP Seal Rebuild Kit
MAC 3 Port EBCS
NKG 6510 1 Step Colder .024 Gapped Spark Plugs
Damond 4 Bar Bosch MAP Sensor Kit
Damond Focus ST Intake Mani Kit
Damond 3.5in Intake
Damond Stage 3 OCC Kit
Damond PCV Plate
Late Night Racing EGR Delete
Graveyard Performance Focus ST Intake Mani FMIC Piping Kit with Treadstone TR1035

More updates soon!

So far as of now I have everything in parts and I’m waiting on my head and block to be machined. Forgot to mention but I’ll be running 2500cc of methanol split between each runner so direct port meth injection. I’ll have enough fuel there and hopefully be able to get some more air in and out from these Kelford cams with this kinda small BNR S5.

Still on oem crank that’s non keyed and also the oem exhaust mani which I’ll get one from graveyard pretty soon too! Should be a fun build and hoping to get to 8k rpm and spool pretty fast and will keep yall updated once I get my block and head back!

 

You don't really need all the head work and cams to hit 600hp. For what you're spending on all that plus a methanol kit you could get a turbo more well suited for your needs so you're not maxing out the bnr. From experience, methanol is more of a hassle than it's worth for fueling. Just get a good PI/fuel setup IMO.

 

This is quite an overbuilt engine for your goals. I'm assuming (and hoping) that this was intentional? You're pretty much just a bigger turbo away from 800, and sleeves and 12mm head bolt threads away from 1000.

Making 600 on a speed is extremely easy and cheap compared to a lot of what was done here (for anyone else interested in 600).

 

I built the engine for 800 ish and yea I could go port injection but I had a whole methanol kit laying around from a previous build so ima put it to use. I’m hand porting the head too so I did intentionally overbuild the engine except for sleeves. Trying to hit that stock sleeve record lol

I could have not built the head and still hit 600 easy, after this s5 I’ll get atleast a 6266 of a turbo and switch to port injection so it’ll be fun, I should get the block and head back here shortly! Regards to the focus st mani I’ve seen ppl crack them at around 900-950 around there so I’m not too worried about that either.

 

Yeah, methanol is largely unreliable compared to port injection though, and on a build like this, I'd be very concerned running it. Takes one bad pull. To each their own. As for the ST intake manifold, they really don't crack unless you go north of 50psi. 40+ they're rock solid. It's not a HP limit, it's a pressure limit, but if you're running 40+ psi you should probably be looking at a more efficient turbo setup in the first place, though some might disagree. I've seen stock ST manifolds at 1xxx hp and higher.

My question is what have you done to actually put any of this power down? 600hp is cool and all, but what are you going to do if you can't even use it? I'm talking clutch, axles, suspension, traction, things like that. If you do the boneheaded thing and smack a really grippy set of tires on but nothing else, you're one launch away from needing new axles (though launching isn't as cool as the hot boy ricer kids will lead you to believe, so hopefully you don't do that).

 

I’ll get myself a 6266 or bigger around next year, I just had that meth kit laying around so ima put it to use, I have plenty of methanol too, I’ll switch over to port injection next year too. I’m just using what I have at the moment but yes I will be switching my turbo/fueling setup next year so a few months don’t worry . As for putting the power down, I have just bc Coilovers and some 255/35r19 Michelin Cup 2, I’ve just alwase bought either all season 4s or those and stood by them on all of our cars. It’ll put the power down, might need a more sticky tire but we shall see!

I have all corksport motor mounts too and a clutch masters fx350 with a aluminum flywheel, it feels great like oem and has plenty of headroom for 500+ of tq so that’s fine, might get a fx400 for a lil extra force if the fx350 is too little too other than that it’s a pretty simple build besides all the motor work, trying to future proof it when I go for that stock sleeve record and some high rpm action lol

 

I got my head and block back from the machine shop, everything looks all good, I’ll begin to assemble the short block tomorrow and still waiting on my cams and valve springs/retainers from Kelford then I’ll assemble my head

 

Get the CS exhaust manifold with vband and a Pulsar turbo + PI and let the magic happen. I would not trust meth. https://www.pulsarturbo.com/product/psr3584-gen2/ My pulsar was great. You can check out my build thread. I would 1000% recommend going with a PI system that is independent from the DI system and do e85 in the PI tank. Only way I would use the stock fuel system with PI is if you do a surge tank too. https://mazdaspeeds.org/index.php?threads/johnnytightlips-build-maximum-carnage.7025/ Buy once cry once.

 

I think that’s going to be the route ima go, ima sell that meth kit for some extra monies. I got the short block done today too and yes a standalone sounds very appealing and I can get one ethenol R local witch would be so very nice to run too

As for a manifold setup I would go with a cs mani but man they are a bit pricy and ima just wait for someone to sell one second hand or buy one new, we will see. I should be getting my cams and valve springs here soon from Kelford and will be able to assemble the head and get it all tied together

I forgot to mention for fluids for my car, I’ve had this speed since it had 40k miles and I’ve ran Liqui Moly 5W40 Moly gen oil and a Wix 51516 XP filter in it too and Redline MT-90 for trans fluid and it has ran great before too much boost broke my piston ring lol. I will be using those same fluids and filters on this built block and 5W40 non synthetic oil for breakin period.

 

Not much of an update but I’m still waiting on my cams/valve springs from Kelford.

The short block is all assembled and torqued to spec and ready to get the head to go on when I get it all assembled.