Built motor capability?

[guitarsoloist87]

For those of you out there with built bottom ends and possible valvetrain upgrades, has it been worth it? Are the horsepower number you are getting with bolt ons and a tune in combination with the build good? Also does the engine seem more reliable now or are they just popping like they factory? I'm trying to determine is it worth paying an ass load to get loan down to do modding or just get an Msp with a built motor and go from there. Has anyone broke 400, 500, 600, or even 1,000 horsepower mark on this motor yet? Or is this just a waste of time and money. I've seen 350 stock and 430 built. That's it.

 

[daonly1around]

your gonna start to see more and more people start to run a second fuel system, basicaly calmp the voltage once it hits boost and use a secondary fuel system to run the car under power (port injection seems to be the lingo term) race roots has something in the works and putting over 400 to the wheels on the stock bottom end, there are a couple other companys going this route as we speak. The stock rods ARE forged to begin with, but people are starting to get places with this car now.

 

[guitarsoloist87]

Hum. I've owned this car about a year now and what I've noticed is nobody really cares about mazdas unless it's a rotary. Really pisses me off. What I've also noticed is that this engine might be what changes all that. I'm wondering should I hold out till I get higher miles 60k+ and if there isn't a decent amount of support sell it but if there is then I will see what I can do. I would REALLY like to see some valvetrain upgrades for this car. It amazes me that an evo 8 can have a million aftermarket parts for it within the first year of it's release(granted it's still using the 4g63), but come on it's a Mitsubishi piece of s***! Why can't companies put forth the effort into our cars. Someday.

 

[daonly1around]

look at it this way
evo 8

mazdaspeed 3 1

just hasn't been around long, thats all

there's more support than you think, and more and more companies are getting their hands dirty.

 

[gtlaw]

the evo got where it was because of rally..not a good comparison

 

[Sergius64]

My understanding is that there is some kind of software block that prevented people with built internals and larger turbos from getting to the expected power levels. CP-E cracked that software block recently, but the first guy to test it on his built motor/bigger turbo had his built engine raise it's head gasket the next day after running the update... not very reassuring.

 

[guitarsoloist87]

I just don't want to wait around forever to see some parts. I really like the effort PTP is putting forth to engineer parts for this platform. They make my squeedlyspooch feel good.

 

[ElGaspo]

I'm trying to determine is it worth paying an ass load to get loan down to do modding or just get an Msp with a built motor and go from there.

My $0.02? N E V E R take out a loan to play with - and potentially blow up - a perfectly good car. Want big power? Used C5Z06. 400+ hp & a fiberglass body + + + [rear wheel drive, V8, easy tuneability...] (cabpatch)

 

[Saskatchewan17]

My understanding is that there is some kind of software block that prevented people with built internals and larger turbos from getting to the expected power levels. CP-E cracked that software block recently, but the first guy to test it on his built motor/bigger turbo had his built engine raise it's head gasket the next day after running the update... not very reassuring.

He had just gotten a built block and finished breaking it in. The head cracked because he had ARP Headstuds, which apparantly are too long. The Race Roots car is doing so well because it still has the stock block. If it had forged rods/pistons they could probably squeeze even more boost into the thing... if they could find a way to get more fuel that is. The major issue with our cars is fueling. You can make the block damn near impervious to boost with forged internals. The only thing limiting you is the fuel. Some (I assume RR/CP-e) are working on higher flow versions of the DI system in place now. Others are ditching that idea all together for a secondary port injection system. Once the fueling is cracked and a few more bugs are sorted out, the sky is the limit for this car. SRT-4s tuners were blessed with a very strong engine and traditional port injection from Dodge as a good platform; and Evos/Stis have been rally bred since the early 90s or so. We are just starting out now with this platform. And DI is very, very, very tricky to work with.
Plus, to continue this tangent even further, our motor has to have a pretty damn strong bottom end to handle nearly 16 PSI stock. Not many sport compacts really push that much boost in stock trim. At least, not to my limited knoledge. I'm convinced the motor is plenty strong, we just need to crack the tuning and fueling. I also think the stock turbo is a complete piece of garbage and shouldn't have ever been considered for this car. I think many people who have had trouble have it with the stock turbo trying to push out as much boost as possible with it. The stock 15.6 is the absolute limit for what this turbo can saftley do. And when increasing that with more free flowing mods, it just makes the turbo too inefficient to do any good. The wastegate exhaust port is too small and easily overwhelmed (as seen by heavy boost spikes in the neighborhood of 20+ PSI with a catless exhaust). The car does much better with an intermidiate sized turbo like a GT28 or even a reworked K04. Phew... well, that's about enough for now.

 

[coyfish]

I just don't want to wait around forever to see some parts. I really like the effort PTP is putting forth to engineer parts for this platform. They make my squeedlyspooch feel good.

The parts are out there. Its the tuning thats being worked out. The ECU / fueling is a tricky beast to work with.

What are your power goals with the car??

 

[ElGaspo]

The only thing limiting you is the fuel. Some (I assume RR/CP-e) are working on higher flow versions of the DI system in place now. Others are ditching that idea all together for a secondary port injection system.

Damn interesting post. Who'd have thunk that, after we get a car w/ stock DI, we have to revert to port injection to get to the outer limits of the engine. (detect)(detect)(detect)