Michael_Rudy

Well i have some MFR PP housings and i am going to build them up with stock 12 rotors, carbon apex seals, lightened billet flywheel, 6 puck clutch, hardened stationary gears, i have all the reduction drive pulleys i am doing some oil mods to get above 100psi i have an older 12 lightened e shaft, and i am going to be running 2 accel 300+ ignitions with 2 super coils on the trailing and 2 accel drag coils on the leading, i am also going to be running 4.88 gears with a spool(hopping to get low 11's before nitrous) what i am wondering is what i could be running the rev limiter at, i am told with the stock rotors and carbon apex seals i should set it at 10,500 rpm, i am hopeing to break 300 rwhp before the nitrous(75-150 shot)

Michael_Rudy

oh ya its going into a 1974 rx3

Rotarx7

iTrader: (3)

yeah 10,500 sounds about right. My dad was a maniac with his PP and he always redlined to the 11s!! i pesonally would set it to 10k just to be on the safe side. oh yeah its a 13b

pp13bnos

iTrader: (1)

I would'nt expect that much hp. Most factory housing 12a motors usually make around 280flywheel hp. CJ

Michael_Rudy

Really? Only 280 at the flywheel i heard of many people making over 300 to the wheels.

Michael_Rudy

Also i am wondering if 4.88's might be too much gear, should i mabye go with 4.44's?

pp13bnos

iTrader: (1)

I'd love to see dyno sheets of someone making that type of power. .488s are'nt to much gear for a peripheral motor. I've owned 3 different PP motors over the years, and .488s are a good combo for the street. I've ran a couple IDA powered ones, and a fuel injected one with nitrous.

Do a search for "CJ Brault" on google. Should come back with my old repu. CJ

Michael_Rudy

Ya i thought you would know what you are talking about from looking under your name and seeing a pic of the housings i am talking about, just wondering, i heard to ran a 150 shot of nitrous on a PP with carbon apex seals, did you use a dual stage or what?

Michael_Rudy

Just wondering when you ran 4.88's with an lsd if you eer got one what times did you run the only site i found said you were running 14's with 3.90's with no nitrous and no lsd

pp13bnos

iTrader: (1)

I don't have alot of info on the web about my first Peripheral car. It was a 81 Rx-7 with a factory 12a. That was the car that was running the .488s. .444s are not enough gear for the street imop. Perhaps for a street port, but not a peripheral engine. The Repu was'nt realy a drag vehicle. I can't stress how much wheel spin the little pickup had.

As far as the nitrous go's...I ran a single shot. Two fogger nozzles, a seperate fuel system, and thats about it.

The best time the repu turned was in the high 13s at around 107-108. (I can't quite remember.) The SDS sight is pretty much outdated. CJ

speedturn

iTrader: (1)

Michael Rudy: you didn't say what kind of intake manifold and carb and air cleaner setup you planned on using.

I have never heard of a 12A PP motor making 300 at the rear wheels, and I have been racing them for many years now. You may get 280 hp at the flywheel if everything is done right, maybe a little more if you spend $1000 on a heavily modified Weber or Gene Berg carb.

Michael_Rudy

custom intake manifold and a preditor carb so it should flow a crapload, thats weird that it would only be getting 280 flywheel horrses my freind has a bridgeport 12a and he is putting down 256 rwhp

BOSSRX-7

Hi there,

Can somebody tell me more about the master power turbos are they good or bad

P.S sorry for my English

PDF

They are either made under licence to garrett or are a copy. They use garrett wheels and shaft and the housings look to be well made. I have a 62-1 to go on a clients car but havn't got there yet so I can't tell you if they perform of not.

vspecpgt

Can a P-Port be streetable? Would it be as reliable as a normal motor if you just keep it NA, and can Fuel injection be used on a PP? At JGTC I heard mazda's 3 rotor PP and it sounded sooo nice. I searched for info, but almost all the posts were about building them and didn't really give the info i was looking for.

just curious as to many aspects of the motor, i'm guessing that its not used very often because its dirty? any general info would appreciated, just trying to expand my mind!

thanks

speedturn

iTrader: (1)

I PP motor is for race track only.

A street port is for street driving.

rotarygod

iTrader: (1)

That's a subjective question. There are going to be people here that say yes and others that say no. The reason being is tha some people's interpretation of streetable is basically can it be physically driven on the street? That's a pretty vague standard and by it a Formula 1 car can be streetable. By this standard even an airplane can be streetable since it has wheels and rolls. The point is made that there are many that have a very unrealistic view of what "streetable" is and will tell you that every setup is streetable. In the real world, streetable needs to do many things fairly well. It needs to idle decently low, needs to get some semblance of gas mileage, needs to have some consideration for emissions if necessary, should be able to be driven at part throttle in low rpm's without stuttering or bucking wildly, should be able to be muffled considerably well.

Many people completely ignore many of these and there are some that can be deleted depending on where you are at. There are many that say a peripheral port engine can easily be driven on the street and it is no problem. Personally I find the gas mileage of a large airliner to not be something that I want to put up with on the street. I also really don't want to drive in rush hour traffic in one. That's just me though. I would be willing to sacrifice more in a play car vs a commuter car.

If you just want a fun car that you can play with and mileage and other issues don't really matter, I say do the P-port. If it is your primary sourse of transpotation then I would say don't. You need to make the call though since it is all based on personal preference.

A P-port engine is not an unreliable engine unless you are hard on it but that's true with most things. Yes you can use fuel injection.

Michael_Rudy

it is going to be street driven on weekends and such i have a street port 1st gen for daily driver

vspecpgt

cool, thanks for the info rotary god. i've never actually seen a pp car up close, so i don't know how it drives and idles etc. all i know is that they sound awesome! and an NA rotary is much simpler and more reliable than one that is turbo. just thought i'd ask!