Max HP on stock internals [Archive]

Craighjr

09-15-2007, 11:45 AM

The tops people are seeing on these engines is around 315hp at the wheels or 360-400 crank hp. The fuel system is a major hold up right now in testing the outer limits of the capabilities of the engine. There have been faliures of rods and pistons though with catostraphic results so it is a tough call. With proper fuel and tuning I'm sure you can go well beyond the current hp numbers but only time will tell.

DuvalMazdaToyz

09-15-2007, 11:51 AM

Is there anything in the testing stages as far as fuel system upgrades?

Craighjr

09-15-2007, 12:19 PM

Is there anything in the testing stages as far as fuel system upgrades?

Some guys were pointing out a company that makes upgrades for the VW FSI motors, but for the DISI Mazda nada yet. I believe that they were porting and souping up a stock pump. Ours is on the side of the valve cover driven by the camshaft. I have machiene shop access but no way of accuratly flow testing this sort of stuff.

Refonbass

09-15-2007, 12:29 PM

and I'm sure people have seen the post with my dyno making
355whp and 367wtq. and haven't had any engine issues yet.
Only issue is major oil leaking/burning through the turbine side seal.

Craighjr

09-15-2007, 12:43 PM

and I'm sure people have seen the post with my dyno making
355whp and 367wtq. and haven't had any engine issues yet.
Only issue is major oil leaking/burning through the turbine side seal.

So thats 315 on gas alone or 355 with meth inj right?

Refonbass

09-15-2007, 04:24 PM

355 is with meth injection, correct.
the last non meth dyno was also pre exhaust, well just a dp. and that was around the 300 mark.

staples187

09-15-2007, 07:41 PM

redrims

09-15-2007, 07:56 PM

Don't know the answer to your question, but you have have some sexy mazdas on your lot. :)

DuvalMazdaToyz

09-16-2007, 11:41 AM

Don't know the answer to your question, but you have have some sexy mazdas on your lot. :)

Thank you.

Andre

DuvalMazdaToyz

09-16-2007, 11:43 AM

I have no idea where I'm going to be when I add the Test pipe and the CPE Standback. I would assume 300-310WHP all day. I'm not worried about the power to the engine since it's already forged, I'm worried about the clutch burning.

Well keep me posted.

I am about to buy a MazdaSpeed3 myself and was just wanting to get some info. Right out the gate i am getting the test pipe, DP, and Exhaust installed along with the MS cold air intake. Just wanted to try to find out what i would end up with.

Craighjr

09-16-2007, 04:27 PM

Well keep me posted.

I am about to buy a MazdaSpeed3 myself and was just wanting to get some info. Right out the gate i am getting the test pipe, DP, and Exhaust installed along with the MS cold air intake. Just wanted to try to find out what i would end up with.

You will end up with boost cut! Add some engine management into that list as well. My car has that exact list and its drivability is suffering.

justa4banger

09-16-2007, 04:37 PM

Craighjr

09-16-2007, 08:38 PM

Wow so out of the gates i have a spend 1000.00 on a piggy module? This will stop the boost cut?

I imagine the motor can take alot of hp, but as stated before the DISI is goign to be a problem. I don;t believe there are upgraded DISI injectors.

atp map sensor dohicky and mbc $150
xced piggy back hard wire $1000 pnp one day
cpe standback hard wire $600
cobb accessport flash $700 not avail yet but soon
cpe v2 plug n play price? avail?

ill_eagle94

09-16-2007, 10:10 PM

You will end up with boost cut! Add some engine management into that list as well. My car has that exact list and its drivability is suffering.

I've never experienced boost cut with my current mods and I can't imagine a catback would do much for me where the car sits now. From what I understand the stocker flows pretty well.

Craighjr

09-16-2007, 11:03 PM

I've never experienced boost cut with my current mods and I can't imagine a catback would do much for me where the car sits now. From what I understand the stocker flows pretty well.

Lucky! I only get it on long full boost runs, basically when racing so I look like a tool that can't drive.

justa4banger

09-17-2007, 11:07 AM

I got boost cut once, couldn't figure out what happened. Popped the hood to find the couple had come off my CAI and was letting in TOO much air.
Car ran like shit.

So when are they coming out with stand alone systems for direct injection??? :D lol

fourthmeal

09-17-2007, 11:26 AM

Its not the injectors, its the secondary, high pressure, MECHANICAL fuel pump located on the engine block. This is the bottleneck to true HP. The injectors are one of the least of our worries, IMO.

Methanol/water injection seems a suitable substitue as a fuel source though, provided the tank doesn't run out!

justa4banger

09-17-2007, 05:42 PM

Does this pump have a flow limit? I can't imagine it not being to support the needed pressure, unless its dropping to far when the injectors are pushed to spray more.

ill_eagle94

09-17-2007, 07:04 PM

Lucky! I only get it on long full boost runs, basically when racing so I look like a tool that can't drive.

LOL, does it basically feel like you're not making as much power as normal at full throttle?

If so, I may have felt it for the first time. I got on it in 4th gear on the highway today and it didn't pull as strongly as I expected. I let off the throttle and got back on it and there was full boost again.

Craighjr

09-17-2007, 08:59 PM

LOL, does it basically feel like you're not making as much power as normal at full throttle?

If so, I may have felt it for the first time. I got on it in 4th gear on the highway today and it didn't pull as strongly as I expected. I let off the throttle and got back on it and there was full boost again.

it feels like the car shuts off and then comes back up to power at high boost. it still pulls hard when it wants to.

456whpEvo8

09-30-2007, 03:37 PM

cobb accessport flash $700 not avail yet but soon

(screwy) If your going to pay 700 for a flash you must be crazy,

$700 + 1/2 hour = Your smoking crack

numbnuts22715

09-30-2007, 05:41 PM

(screwy) If your going to pay 700 for a flash you must be crazy,

$700 + 1/2 hour = Your smoking crack

You gotta remember cobb can also be used to tune it, so that takes care of the engine management as well..
Thats very reasonable.

fourthmeal

10-01-2007, 09:56 AM

(screwy) If your going to pay 700 for a flash you must be crazy,

$700 + 1/2 hour = Your smoking crack

Access Port is a full tuning solution, and at that level it is a BARGAIN. Think "Vishnu" for Evo's.. Good deal, right?

mrlilguy157

10-02-2007, 05:00 PM

although the camdriven fuel pump is the reason we're stuck at about 325whp, but internals include crank rods and pistons.

rods is what should be worried about. my attitude is go big or go home.... so soon enough i'll be building up the full motor, going big.

shooting for 450 reliable daily whp. new camdriven fuel pump, new rods and pistons, new spec stage 3+ clutch, electric exhaust cut out and 3" downpipe, 3076r turbo, new TIP, standback unit, and some good tires fo sho.

funkyman

10-03-2007, 02:15 AM

They are working on it.The fuel pump is good to go,the one in the fuel tank isn`t i think.

mrlilguy157

10-03-2007, 04:31 AM

They are working on it.The fuel pump is good to go,the one in the fuel tank isn`t i think.

wrong. the in tank pump is fine.

the cam driven one is what can't flow/pressurize enough.

fourthmeal

10-03-2007, 09:09 AM

They are working on it.The fuel pump is good to go,the one in the fuel tank isn`t i think.

Flip that one around my man, and you've got it right. The expensive one is the one that is the bottleneck. Man I WISH it was just the in-tank pump.

chriscecc914

10-03-2007, 11:04 AM

I have no idea where I'm going to be when I add the Test pipe and the CPE Standback. I would assume 300-310WHP all day. I'm not worried about the power to the engine since it's already forged, I'm worried about the clutch burning.

read this
so theres your answer. the cosworth engines and engine parts are not designed for nor will they work in the mazdaspeed3, mazdaspeed6 and cx-7

on a different note, here is attached pic showing the factory internals next to a true forged internal. those who still cling to the "forged factory internal capable of 500awhp" nonsense can check this photo out and tell me if they really honestly still believe that.

left : factory sausage link
right : pauter forged rod

also a watch out with how far you go with the clutch. Spec 3+ may be too hard on the trans. Ive seen spec 2+ on mustangs that run 500 tq and it holds forever