225hp n/a p5

[DiscreetSpeed]

definitley possible...i dont think 10.4:1 compression will do it though..may need to step it up....bore the block some....race port head as well as your tb and intake manifold, full exhaust- bigger primaries on the header and a header back exhaust. bump the fuel components up and some tuning..put you clean over 200. and for a n/a 2.0 daily driven ride thats pretty impressive.

 

[TXMazdaSpeeder]

definitley possible...i dont think 10.4:1 compression will do it though..may need to step it up....bore the block some....race port head as well as your tb and intake manifold, full exhaust- bigger primaries on the header and a header back exhaust. bump the fuel components up and some tuning..put you clean over 200. and for a n/a 2.0 daily driven ride thats pretty impressive.

with the higher compression and larger cams how tame is it going to run on the street though? and as far as i can tell u better be putting 93 octane in that b****.

 

[MP3skaterNC]

Wow, you guys are pretty against all motor huh? Heres what I'd do.

• Ditch the ms cams, get some custom ground to be more agressive than those
• Cam gears, to get the most out of those cams
• some lighter valve springs, and valves, I think MP3racer is going to be selling these soon.
• A good header that flows well
• 2.5" cat-back
• Some kind of engine management. probably haltech, or maybe the aem?
• An intake manifold
• Bigger throtle body
• Take all the rotating assembly out, get it ballanced
• forged rods
• high comp pistions, probably should go higher than the jdm ones
• pulleys

Now rev that b**** to like 7500, and I dont see why at least 200whp isn't possible.

 

[mp3moose]

I plan on milling the head to raise my compression even more to at least 11.5 and running octane boost for about 97. And individual throttle bodies would be nice. Management is definately somthing close in my future (advance timing a few degrees, and lean out that mixture). You'd need at least this to get close not to mention the headed work and free exhaust and cams.
moose

 

[thewrench]

MP3skater, that's exactly the idea and my plan, except for maybe the high comp pistons. Except, to be streetable I don't bebieve you'll make more than 180 or so. The WC cars make 225, but their powerband doesn't really start until over something like 5000rpm. Also, remember they cost over 10 grand and they have to be rebuilt all the time. I ran my plan-cams,cam gears, street ported intake mani, header, exhaust- by one of the guys at Sunbelt and I said I wanted to make 140 from that, and he said probably not, even with using their cams. So I figure adding pistons, again streetable (93 octane), I might be able to hit around 150. Add the AEM to that and hopefully, it'll make 180. That's no headwork, but he said there's not much to be made from that, there's much more to be made in the intake mani. That agrees with what Perfworks has said previously. I really don't think i'll make that, but I'll be happy to hit 170 at the wheels.

 

[melicha8]

You won't be able to get that much hp from this engine and keep it a reliable daily driver. Tri point rebuilds their engines every five or so races where as every other team on the speed world challenge does it just once at the beginning of the season.

A lot of those parts will not get you there. You would have to make custom ground cams for starters and I will tell you right now your drivability will go down the toilet when you get cams to specs necessary for your goals.

When you start getting power parts you will also get a "give a mouse a cookie effect" where those parts will require other parts.

 

[Roywhitep5]

buy a used s2000.

 

[twilightprotege]

well looks like i'm a bit late jumping in on this thread.

225hp at the crank? possible? yes.

first of all, ditch the rm header. our engines will never rev enough to get the full advantage out of a 4-1 design. also ditch the j-spec cams etc. they suck. you'll be wanting even larger than my cams (as far as i am aware i have the largest cams in a street P5)

2nd, major head work, larger valves, esp on the exhaust side (they are piddly compaired to the intake side)

3rd, HC pistons. dont mill the head as a easier alternative

4th, new IM. you could get away with a single TB, but quads would be better

5th, lighten the hell out of the stock crank, and use forged aluminium rods instead of the pauter rods. you should rev to 8000rpm no problem now

6th, individual coil packs. nology setup wont do squat

and the most important thing - standalone ecu. without it you have no chance.

for all those sceptics out there....when i have my full exhaust system on i'll hope to be getting 150whp....and that'll be at 6500rpm (my rev limit). 150whp is about 200hp at the crank, give or take.....

 

[shinzen]

The route I am going is definitely N/A- fortunately for me andrew is testing out the mods for me! Good luck, I think all the points have been hit above

 

[mp5smuggler]

no cause i put down 200 w/o a turbo or a superchager. if you simply want to make it 200 hp for a street race and not worry about doing any real damage to the engine simply get the j spec cams the j spec intake manifold. thats all you need. oh and get a bottle and give it a 55 shot and your there. easy and streetable.

 

[thewrench]

twilight- just so you know, the RM header is 4-2-1. It's the Ractive header that's 4-1.

 

[SuperSpud]

no matter what he is doing, he is going to have to get a full head job, and prolly bore it out a little... you ppl are failing to realize how hard it is to get hp once you get up around the 175-180 mark while going N/A...

there was a magazine a while back that was trying to get 200whp out of a honda b16c... they were having a VERY hard time doing it.. and they start off with about 30 more hp than the protege... granted, it was only a 1.6 liter, but still.. honda motors are VERY well built and VERY easily tuned... not to mention the millions of performance part for them

 

[Subghetto]

In the longrun you will spend more $$$$ and time to get 225hp n/a then throwing on a hi-boost kit and getting 210hp.

 

[mp5jeff]

225hp or 225 WHP?? completely different numbers, id like to know which one you are aiming for. If its 225WHP you are looking for, haha good luck with that one n/a on this motor.

 

[pr5owner]

screw the axel back.. get a test pipe, one big strait pipe out the side.. you will not get anywhere close to 200 without it

 

[stdntDrvr]

twilight, where'd you get your cams?

 

[Replica]

This is funny, people are debating exhasts in a thread where someone is trying to get 120 more whp going n/a. Hahahah, funny s***.

 

[sidpro5]

I wasn't so much debating the exhaust issue, just pointing out that with so much more air/fuel coming in, it needs more room to go out. Just going with what I have experience with. I know for a fact that it won't help a whole lot, but it'll be better than an axle back, and when it comes to these engines, I haven't done much of anything else. Just giving my two cents. Glad you found it amusing.

 

[igdrasil]

It can be done!

yo can do it...

260HP Protege from ARC Racing

 

[Replica]

Race team budget > Private individual income