D7ig

Hi,

cause I am currently rebuilding my S5 N/A engine i am thinking about further steps.

The car will be a track car, but i want to drive with the car to the track.
Noise: max 95db

I want a bit more power. I am thinkin about the following setup:
- S5 turbo housings, then port the exhaust ports
- Large street port (combine secondary with the aux ports?) or what do you think? Maybe use turbo irons / turbo intake manifold?
- Don't know: Racing beat carbon apex seals + their hardened stationary gears (do i need the revs? do i need those items for decent revs?)

Allready here / done:
- Racing Beat header, test pipe, other then this, the exhaust is stock.
- RTek 2.0
- Aux port sleeves removed
- Throttle body modded

What do you think about a bridge port? Would it be too loud?

A more or less good gas mileage would be nice.

What should i do beside of this?

What do you think about the setup?

Thank you!

Regards,
Daniel

Turbo23

iTrader: (4)

judging by what you already have done to the car, be a large streeport. Basically I recommend keep everything as simple as possible. Dont try to over complicate things when it comes down to building a race car. Standard mazda seals are all youll need. Carbon seals are really only for PP very high revving motors. You should still be able to use the s5 NA manifolds and such. I would look into what the Eprod guys are running for motors. Bridge would be nice, but I think for your noise level you would have to choke the noise, and that would also choke your power.

D7ig

Hi!

Thank you!

Yes, you are right. Simple is good.

What do you think about the hardened stationary gears? Are those a must have when driving often at higher revs?

How much horse power could i get with this setup at the flywheel?

Regards,
Daniel

diabolical1

iTrader: (3)

a few points if you're not adding forced induction to the mix:

1. consider what kind of racing you'll be doing first and let that dictate the type of port-work you need.

2. not sure if you know this already or not, but if you're trying to optimize your setup (and if this is your "track" car as you said, then i'll assume that's what you want), then anything over a streetport will need new intake and exhaust setups along with some form of reliable and capable engine management.

good luck.