Stock 5s limit Options

[macavely]

Ok i can't seam to find what i was looking for ..

so my question is what is the highest reported boost before breakdown on a 5s with stock internals..

and also does anyone if there is a company that makes stronger valve spring for for the 5s ?

[recneps]

Ok i can't seam to find what i was looking for ..

so my question is what is the highest reported boost before breakdown on a 5s with stock internals..

and also does anyone if there is a company that makes stronger valve spring for for the 5s ?

i think itchy made 15 on the stock 5s. thats the highest i remember.

also, supertech i think will make any kind of valve spring for i think anycar custom spring rates and stuff. you should look them up.

[presure2]

i ran just about 15lbs @ the track for a couple passes...wouldnt run it every day like that tho..lol

[x_itchy_b_x]

word i ran 15psi alot. spiked at 20 once also when my MBC was first put on cause i didnt build it properly forgot to put a hole in it to vent boost.

[lagos]

most motors wont blow up just by running higher boost once or twice. if you keep running that same high boost often then youll see engine damage. so i think the question is hard to reply to, because there is no real proof what boost level is safe or not, unless somone has run that same boost for a year or more.

[x_itchy_b_x]

i did one summer at 13psi constantly. to bad we dont know if it really did damage
some one buy my 5s and blow it up.

[jayi12-15psi]

I usually hear reports that it's not wise to go over 6lbs with out fuel system upgrades. It all depends on the condition of your engine and your set up. For instance, if you're running stock injectors, I wouldn't go higher than 6lbs. If your car has alot of miles, you may want to consider an engine overhaul. Then of course, I'll just go out and say it...


Your probably better off with the 3sgte.

[macavely]

well the reason for my question is just to get an idea of how much work i would have to do .. to make the motor abl to handle 18- 20lbs of boots (for daily driving) ... an before anyone says do a swap .. NO.. (mac smacks you on noise) ... if things work out for us like i hope they will .. We would need to do something that isn't as easlly done as 3sgte swap for power...

[jayi12-15psi]

Isn't as easily done?

[macavely]

yea.. a swap your taking a motor that was intended for performance and has alot more support for making more power... the 5s as everyone here know is an ecano box... an getting it to the point i want it to be will take more time/money/R&D then if i just swapped in a 3sgte in there ...

[jayi12-15psi]

ok, ok, ic. You're up to your old stubborn tricks. lol, no offense.

[macavely]

lol .. no none take... but its something i might have to do .. for the soul reason of me showing off the work i'm capable of doing .. no other reason ..

[lagos]

well the reason for my question is just to get an idea of how much work i would have to do .. to make the motor abl to handle 18- 20lbs of boots (for daily driving) ... an before anyone says do a swap .. NO.. (mac smacks you on noise) ... if things work out for us like i hope they will .. We would need to do something that isn't as easlly done as 3sgte swap for power...

i wouldnt say that any car, at daily driven 20psi, would be an easy thing. swap or 5sfTe.

[macavely]

well the reason for my question is just to get an idea of how much work i would have to do .. to make the motor abl to handle 18- 20lbs of boots (for daily driving) ... an before anyone says do a swap .. NO.. (mac smacks you on noise) ... if things work out for us like i hope they will .. We would need to do something that isn't as easlly done as 3sgte swap for power...

i wouldnt say that any car, at daily driven 20psi, would be an easy thing. swap or 5sfTe.

depends at what corner of the shop your looking from ... .

[Defgeph]

If your looking for big power, you wont find it in a 5sfe Mac. I know it sucks to hear, but no matter what you do. Its very limited.

[macavely]

I know its limited ... i'm not looking to make this a beast that will distroy all that come my way... this is a project to show off my building skills an what we can do with an econo engine ... we might find out we can take way pass what anyone else has done... but our plan is to buil push it to limits an see how long we can keep it at its limit..

[jayi12-15psi]

mac, if you're looking at the project from the corner of the shop, you're not showing off your skills.

[lagos]

building a 5sfe that can handle 20 psi will not show off your building skills. it will just show that you have REALLY deep pockets.

[macavely]

mac, if you're looking at the project from the corner of the shop, you're not showing off your skills.

lol .. you totaly missed understood that statment ... lol ..

building a 5sfe that can handle 20 psi will not show off your building skills. it will just show that you have REALLY deep pockets.

its one thing if your sending a motor out for work to get done.. its another thing when your doing all the work yourself... now your telling me cause i'm going to do all this work myself i have no skills??

[presure2]

mac, you wanna run 20psi...? its easy..
forged EVERYTHING, build the hell outta the head..cams, OS valves the whole shoot, and a good metal headgasket...slap on the RIGHT turbo, with proper engine management, with a REAL tuner, and then just cross your fingers, and hope the block holds together.
jim snodgrass made 515 on a built 5s with the right goodies..