Boost psi with stage 1s
What kinda boost will stage 1s get you on a stock turbo? How big of a differance do they make over stock?
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Why are you so concerned about boost? Do you only want to build boost? A good tuner will try to give you power with a minimum of boost.
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just wondering
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Fair enough.
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im just trying to see how much a differance stage 1s make over stock
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well the stock turbo is out of MAP at 25 psi. anything more is very hard on the bearings.
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is that why people unplug the MAP to stop it from defueling?
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yes. i'm not sure what the defuel point is on the OBS, on the SD's it's 20-22. mine is 21 psi. the engine is good for about 40 psi with no studs. - it's not the boost pressure that will damage a stock turbo, but the back pressure/ drive pressure (exhaust side of the turbo) that loads the stock bushing setup that leads to failure. - thanks to CSIPSD for this last segment.
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so is it bad idea to unplug the MAP? My buddy did that to his 99 and it smoked like hell with only a intake and exaust but my stock obs would take him every time and mine is a manual and his was auto but i think that truck had serious injector problems
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Originally Posted by 97t444e
(Post 874628)
is that why people unplug the MAP to stop it from defueling?
What size stage 1's... Calling an injector a stage 1 is just dumb... What CC and what nozzle size. |
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