when i put my car back 2 gether (87 t2) how much can i put on a stock motor as in boost, i have a hks boost controller , an a hks turbo timer, it will be a stock engine an a s5 turbo, what can i do that is cheap to make it safer to accept more boost, i am ignorant, an dont know much about rotarys at the moment , hope i have it in the rite section thanks for reading

 

You can generally go up a few PSI (to around 8 PSI) with a completely stock fuel system.

Any higher and you need to increase fuel. For very mild increases (say, to less then 10 PSI) then an upgraded fuel pump is usually sufficient. For more boost (above 10 to the turbo's limit of 12-14) you will require larger secondary injectors and some way to control them (ie. S-AFC).

In any case, going above 8.6 PSI will require the installation of an FCD.

 

perfect, thank you, so here is my other question , can i run bigger injectors an a better fuel pump with a stock ecu., an do you need a stand alone system to run the secondary injectors, an whats the hp running 10 pd of boost on a some what dd car, an how bad is it gonna be on the engine, an the most important question will it beat my fathers 07 mustang gt.lol with the boost turned up an better fuel delivery

 

You can run a bigger fuel pump with the stock ECU, but you can't use larger injectors. Injector size changes will require something like an Rtek chipped ECU (www.pocketlogger.com), an AFC fuel controller, or a standalone EMS. 10psi of boost, along with proper fuel, is just fine on the engine.

 

ok that helps, an is a rtek ecu plug an play, so its ok 2 run 10pounds of boost with a upgraded fuel pump with a s5 turbo an still be good on the engine

 

good tunning is very improtant

 

whats the hp i can expect with a s4 engine s5 turbo an 10 pds of boost an a upgraded fuel pump an a bigger tb an air intake with a ported intake, an who would i take it to 2 get tuned

 

Porting the intake won't help, and there is no point (or even a part available) to go to a larger throttle body.

At around 10 PSI, the low side of 200HP. Somewhere around 220-230HP.

 

an is that pretty much where it will stay untill i get a motor ported. whats an easy way to get hp.n should i just build a engine instead of buying on stock complete, i am use 2 my 5.0 mustang, but am doing alot of reading on the rotary engine, thanx for reading

 

does taking off any of the smog stuff give it any more hp or does it just let the engine breath better

 

It just simplifies things if you are talking about the rats nest.

The only thing that is "emissions" related that you can remove to add HP are the cats.

 

not to jack your thread but i have a question. i have a s4 turboII with no cats and bad fuel cut. i have a safc neo i was thinking of putting on the car. my question is will the afc neo take care of the fuel cut or will i need a fcd also?

 

The easiest way for you to gain HP at the moment is to just up the boost a little.

If you remove the cats, then yes. Once you remove the cats you can also remove the air pump, ACV, block off the EGR and basically disable the emissions system. But it only removing the cats that results in a power gain.

You need an FCD.

 

You should always find a good rotary tuner and ask him, if he is going to be the guy to tune your car, what he would do. If you are wanting to up the boost and be safe you will need a tune and as far as what parts to use...that is a pretty subjective subject. The best thing to do is ask your tuner. If you dont have a tuner find one cause you will need him.