best path to 300 hp on a n/a
 

just like it says. ive got a catback and kn filter, but what else? just start listing em, thx

peripheral port and tuning :) or a 3 rotor N/A setup.

buy a turbo.. jk.

humm ive been debating that too

i was at the scca runoffs this past week and there were a few guys making 300-325 crank on a P port with carbs...

GT

p-port is the only way you're gonna do it with a 13b and there's no way you're going to have a streetable car with that kind of porting. It's not a realistic goal as a driveable n/a.

nitrous

i know this sounds stupid but, what is a periphrial-port?

.

Do some searching...I just recently posted a thread about it WITH pictures. Hit it up.

http://www.etrackmasters.com/dyno/tomtu.gif
dyno of a P port 1st gen
is that what you were looking for?

Lt1

+intake/exhaust then ~300...maybe a mild cam just for kicks :D

I take it that this is engine dyno figures right and not whp?

You're not going to hit 300hp, unless we're talking about a $10,000 motor with another several thousand worth of electronics.

Do you still have the stock intake manifold?
What is your exhaust system like?
Are you still running the stock ECU?


-Ted

10,000.00 motor?..... What are you building it out of? Gold?... :rlaugh:
Here is one of my current projects, the goal is street driven 300 rwhp n/a..
Someone asked me last night what I was into it for money wise, I guess around 1200 or so, but looking at my parts receipts and what not its sitting at around 1600 Canadian, its built with all genuine brand new mazda oem internals as well. New 9.7 rotors, rx-8 stat gears and some FD parts for good measure..
I am currently weighing ecu options between motec/autronic/haltech..
All said and done its gonna be around 6000.00 when its in the car running.. Probably be done in a month or so...Max
https://www.rx7club.com/forum/attach...d=130536&stc=1
https://www.rx7club.com/forum/attach...d=130934&stc=1
https://www.rx7club.com/forum/attach...d=130935&stc=1
https://www.rx7club.com/forum/attach...d=130937&stc=1
https://www.rx7club.com/forum/attach...d=130938&stc=1

Don't you just love it when people claim they can do it cheaper when the whole thing isn't running yet?
I guess max is suddenly offering FREE labor and service for PP motors now!
Last time I checked, it wasn't free to build a PP motor...


-Ted

That was pretty lame...
How do you know how much it costs have you done one? How do you know everyone must pay for labour, nobody else could do this themselves, show me where labour was mentioned previous?..
There is little to no difference in labour between this motor and even a streetport, now are you going to claim its 10K to build a streetport?...In fact the porting on this motor has less time in it than a streetport, so if anything the labour would be cheaper overall on the engine build.
I can buy a RE amemiya JGTC spec 3 rotor p-port engine done for 10K canadian off the shelf which is still less than your 10K I would assume US dollar figure... I dont really know where you get off always trying to scare people off of stuff with ridiculous dollar figures, its a bit of trait of yours it seems, and I am not sure why you do it..

what anout custom manifolds and EFI or carb setup.... that part of the price right?

I'm doing a 12A PP right now. Budget is $1000 for the short block (including modification of rotor housings), about $400 for EMS (Megasquirt most likely), and a I already have the throttle bodies hanging around...While it won't be 300HP, I'm just saying that just because it's PP doesn't mean it has to cost a million dollars. :)

Considering the Price for a stock rebuild with mostly new parts WITHOUT PORT WORK from a large reputable shop is $6,000 USD I really do not think that $10,000 is far from what it would cost.

$10K is about right for Retail Purchase of an 89 Two Rotor Bridge Port engine.

For that money I would much rather use a Three Rotor or build a very nice Turbo Car.

rotor kit and seals kit $1000, balancing $500, pullies $120,oil bypass valve $60, 51 webber ida carb $750, carb manifold $150, rb header $200, labor $1,300 ( one of the best engine builders in the country [US]) TOTAL $4,080.00, 300+ hp racing engine, if you have to buy rotors and housings ad $2,000 more, this is all new parts.

I'd go...
100+ psi OPR
deep bearings (don't forget labor)
oil pump cavity port
external oil lines to bypass front cover and better oil delivery
oil pan baffle
hardened gears
race clearanced rotors to handle that high RPM's

All those "low" estimates assume labor is low or almost nil.
Try approaching Racing Beat or Mazdatrix about a motor like this, as see what kinda price quote you get...

http://www.mazdatrix.com/getprice.as...num=MZTX-13-PP

Wow, $8,600 from an engine from Mazdatrix...who would've though?
And that for the SHORT BLOCK ONLY...

http://www.mazdatrix.com/r-20.htm

Now slap on a nice ITB + EFI system, and we're talking easy $10k here.

And max thought I was talking out my ass...


-Ted

Yah if you go through someone else it's obviously going to be 10k+. Max is assuming that you do all the labor yourself and only count the cost of the parts. He's forgetting, though, that YOUR time is money, at least MY time is money to ME. Labor isn't free, it takes time out of your day that you could be doing other things, think of "opportunity costs." Just because you do the work yourself doesn't make it free, unless you devalue your own labor that much :p: My point is merely that I agree with Ted here, at least in the sense that I'm not going to value my own time and labor as nothing, when I could be doing other things with it and making money, enjoying myself in other ways, relaxing, or being more productive in other fashions of life.

You also have to remember that not everyone has the knowledge, resources, ability, or willingness to build a motor (whether it be streetport, bridgeport, pport, or anything) themselves. Max, just because it may be as simple as a streetport, in your mind, doesn't mean that everyone even wants to build streetports. That's why people go out and spend money on stock/mild engines for companies to build for them. I think Ted just does worst case scenario for THOSE types of people. Why go and tell someone they can do a pport for $6k or whatever only to have them find out later, when they want someone else to do it, that it is more? I find it better to expect things to be higher or much more expensive, that way if and when it IS cheaper if you can do it yourself, you're much happier and surprised rather than pissed off that you went $4k+ over in budget.

Also, Max, where are you coming up with 1600 canadian for all brand new Mazda internals? Did you get a deal or hookup from somewhere like Mazdaspeed (or whatever their name is now)? A pair of s5 rotors alone is over $1k without any discount or deal, so I'm assuming if all the internals are brand new you had to of gotten some kind of deal somewhere?

Not if it's your hobby.

I like your thinking. I too was going to use a similar TB for a PP project. Who says you have to spend shit loads of money for a new TB when something like this will do just fine. Nice thinking out side of the box Max. :D

Or you could buy and engine out of a recked Rx8 for $2,500 and have everything you need internally for a PP. That engine easily revs up to 10k stock. All you would need to do is mill the rotors for 2mm seals to handle the PP's. I would use 2 piece NRS ceramics for this one $1,500. The PP's could be done by forum member scaliwag for $300.00. Then you get creative like Max did with the intake and you could have one hell of an engine thats basically brand new. Now of course this all depends on how well the side exhaust work with the PP's?