i geting a great deal on a motor brigde ported thats pined ready for boost, but my friend tweak aka luis says i should go for a street port, ???? wat u guys think, its going into a s5 turboII,

 

Stock ECU?
It's not recommended to run a BP motor on the stock ECU.

If you're running a stand-alone EMS, that's another story.


-Ted

 

yea iam be with runing the stock ecu, but iam be stand alone at the end of this year i hope, but the brigde port would give me a lot more power then a street port would ???

 

if u plan on revving the **** out of it all the time AKA race car.. go BP

if u want it to still be streetable.. u can get away with a large street port...

all depends on what u wanna do with the thing

 

its going be on the streets i just want to put down some nice numbers,

 

Half-Bridge. Best of both worlds.
Streetable and more punch.

 

If you have to ask, street.

 

id say go for the 1/2 bridge or full bridge , but the problem is tuning like they said... sure it will run and drive ... im not exactly a tuning expert but i do know the stock ecu has a rev limiter at 7800-8000 rpm on s4, on s5 its like 8600 rpm

aside from that youd want to modify the fuel map and ignition timing and prolly ge rid of the stock maf because its not that efficent for a bridgeported motor, since youll probably redline up to 9-10k with a bridgeported motor the stock ecu stuff just wont be giving you the true power out of your motor since your peak power would be made at above the stock rev limter but u can stil drive it with a stock ecu, it just wont be running at its full potential, but all u do is bump the idle up and it will idle fine

dont quote me on anything i say but im just sayin id rather have a bridge port than a streetport since it would make ur car sound mean as hell and make it fast as hell

in my honest opinion, get what you want who gives a **** what anyone else tries to tell you what is ' best for the street' , its your car you do what you want with it regardless of others opinions

 

It's not going to work on the stock ECU.


-Ted

 

whats the reason that it wont run with stock ecu ? i thought it would run but just not run good

 

Agreed. Recently went for a ride in a friends half bridge with stock turbo on a standalone and Wow.. really good response, now he just needs a bigger turbo.!

 

j-port it

 

What about n/a guys?

Full half-bridge, or 1/3 bridge? Heh, this is my current problem I seriously can't decide if I should just bridge the aux or the aux and secondary, I'm at a standstill!

 

hes gonna be boosted so i told him no point really of going with such a big port i told him to go with a large streetport and upgraded turbo (oviously with fuel to compensate) and work from there i dont see a point of idling at like 1500 rpm and getting shitty gas milage for an everyday street/race car

TwEaK

 

guess iam going brigde

 

but it will work if the stock ecu backed up by piggy back ecu such as safc, right???

 

if he goes bridge on stock ecu hell blow the motor within a lil bit i dont think even with a piggy back it will help that much

 

Go half bridge. Don't just do the aux ports. The reason I just did the aux was because I was originally going to make them valve-controlled. I threw out that idea a while ago, and thus wish I had continued the bridge down. Would have gained so much timing...

 

Aaron, I have long term plans for an actuated 1/3rd (aux) bridge. Think you could elaborate on what led you to avoid doing this?

 

It was pointless.

Edit...Maybe a little more detail. I realised that I didn't care much if the idle was nasty, and that with boost, low end is nowhere near as bad as what people say with bridgeport timing. Just looking at a few dyno graphs proved that to me.