what is a good and "safe" boost level to run on built daily Driver???
I was running 10 daily and 15 at track no problem
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40, while running 87octane
all seriousness, is your motor stock? forged? what? what turbo you using..
typically peope just run like 12-15 everyday, or atleast i did. i dont give a @!#$ about gas milage
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jamon king wrote:what is a good and "safe" boost level to run on built daily Driver???
depends on your turbo size, your motor, your mileage, TONS of missing info.
I think he want's to know whats the safest/max boost level to run on his built motor/ daily driven cavalier(if this makes sense lol), i would say anything from 12-15lbs max on the streets, anything past that would be kind of dangerous imo!!
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i have forged internals, i have a used t3(i need to get a rebuild kit for it, it has a cracked thrust bearing, and need new oil seal at the turbine wheel), trim 57 turbo that i had for 2 years now ....and does anyone why some do people thinking turbo setup aren't reliable?
They r just a lot more work to make them that way
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you said built motor, what is built? who is tuning it? what are you tuning it with? what turbo will you be using?
it an ld9 ...i was going to a friend tune it with HPT (although i really need to learn...) and its a garrett t3 (trim 57)
To wut extent is the motor built jut rods and pittons any head work porting every thing u have done will tell u how far u can go
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wiseco pistons, eagle conrod, stainless steel valves, clevite 77 bearings, port and polished, and 2.3l pump oil conv.
plus i have a second engine(LD9) i plan on building
i was driving my eco at 13 daily. im sure if you wanted you could run 15-20 safely if you tuned for it.
Yeah 15 easy
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I run 10psi daily, with 103k miles on my stock ld9 daily driver.I have seen 13-15 psi, which is what I plan to start on after my motor build is done. Then I plan to go up 18-20 on track days and what not.
On a built motor you could run pretty much whatever, as long as you have supporting mods like tuning, fueling, and pcv mods. Just be smart with it and just throw alot more boost at it like some guys Ive seen
You have to absolutely eliminate detonation. Detonation is the difference between a healthy motor at 15 psi or a doorstop at 5.
2002 Cavalier 2200 5spd
you want a safe daily driver? then remove the turbo. if you want daily fun then boost it to 10psi. if you want power with a drastic loss in reliability then boost it higher then 10psi. of course there is no such thing as a reliable boosted vehicle without a professional dyno tune. my guess is your friend with the hptuners is going to street tune it which will get you in the ball park but it is not precise enough. a dyno tune is required for the most reliability and power but eventually it will break.
JOE L wrote:you want a safe daily driver? then remove the turbo. if you want daily fun then boost it to 10psi. if you want power with a drastic loss in reliability then boost it higher then 10psi.
Thats so untrue. It completely depends on the tune.
My talon was at 22psi daily on a 50 trim. At 22 psi it made roughly 450awhp, that by no means was unsafe or unreliable. The unsafe parts depends on the driver, a stupid driver could be unsafe with no boost.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
its a very true statement. eventually boost will take your engine to the heavans. a proper tune just prolongs it.
JOE L wrote:its a very true statement. eventually boost will take your engine to the heavans. a proper tune just prolongs it.
Can't say as I agree. This is a misplaced notion. We've seen many customers' cars last for years once properly turbocharged. It's not a death sentence!
Bill Hahn Jr.
Hahn RaceCraft
World's Quickest and Fastest Street J-Bodies
Turbocharging GM FWD's since 1988
www.turbosystem.com
Yea, if that statement was true then why would they produce factory turbocharged and supercharged cars? My car has been boosted for longer than it was n/a since Ive owned it.
Id say figure it out yourself, not to be rude but every application is different. There is a lot to take into account for a question like this. This past spring and summer I ran 15psi daily, others lower, others higher. Just depends.
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JOE L wrote:its a very true statement. eventually boost will take your engine to the heavans. a proper tune just prolongs it.
I'd love to hear your technical reasoning behind this...
fortune cookie say: better a delay than a disaster
icemike89 wrote:Yea, if that statement was true then why would they produce factory turbocharged and supercharged cars? My car has been boosted for longer than it was n/a since Ive owned it.
im referring to n/a to boosted applications. stock n/a vehicles were not designed for boost and they have a smaller threshold for error. weaker components will take its life. it could be 5k miles or 100k miles. its a big unknown.
factory boosted vehicles are safely tuned for reliability not big power and there engines are built for boost.
JOE L wrote:
im referring to n/a to boosted applications. stock n/a vehicles were not designed for boost and they have a smaller threshold for error. weaker components will take its life. it could be 5k miles or 100k miles. its a big unknown.
factory boosted vehicles are safely tuned for reliability not big power and there engines are built for boost.
OH generalized statements... you will fail in the world of Automotive...
Think of what Bill Hahn Jr. does for a business... He banks on his Research and Development to know what is safe for factory vehicles to boost with regards to reliability. He deals with it every day.
Plus fundamentally, supercharging an engine whether it be turbine or belt driven is the "nicest" to an engine in the way it makes power... Compare it to the way nitrous hammers connecting rod bearings.
Boost is safe on ANY vehicle, the amount of air you cram in is what determines how much will net a safe and reliable vehicle, and yes it is determined by how you drive too.
Im sick of people discussing "how much boost" in terms of pressure ratio too... Please people get it through your head the flow rating of both the turbo and the engine is what determines pressure ratio and therefore how much power your going to make...
Bill are you back in the wonderfully corrupt State of Illinois yet?
Buildin' n' Boostin for 08' - Alex Richards
