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#1
08-02-2005, 11:55 PM
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Turning up the boost.
I have a question about the T25 and a boost controller. One of you guys said you turned it up until it went bad. So is turning up the boost on the turbo not bad for the engine (assuming you aren't being ridiculous with it) ?
__________________
 '95 Eclipse GS-T 5-Speed Boost, air/fuel gauge. 
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#2
08-03-2005, 12:23 AM
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Re: Turning up the boost.
The concensus is 16psi on the T25. It's not a matter of being harmful to the engine, but that the turbo is inefficient above there are produces a lot more heat than power. The heat will knock on pump gas.
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#3
08-03-2005, 01:30 AM
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You might run into fuel-cut as well.
__________________
95 GSX:FMIC, 6-bolt, evo 3 16g, 2600 act clutch, 1g bov (crushed), and a 3" turbo back exhaust, dsmlink, dks 272 cams, wideband 02, Coming soon 2.3L Stroker, 1mm oversized valves, crower sprigs. 91 TSI AWD auto, gm 3.5 maf, maft, fmic, emanage, profec e-01, 3" turbo bk exhaust +more little stuff. http://www.ratemydsm.com/member/ez1286/?member=ez1286  
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#4
08-03-2005, 03:47 AM
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Re: Turning up the boost.
fuel cut is not pretty......
__________________
Need a GOOD 6-bolt engine? Quote:
'95 Talon Tsi EVO III GT, supporting mods, not running  Brand new never opened, walbro 190LPH fuel pump for a 2g $65 shipped.
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#5
08-03-2005, 05:19 AM
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Re: Turning up the boost.
You shouldnt hit fuel cut on your t25 at 16psi. Go for it, but be sure to watch your boost gauge.
__________________
"Life begins at 20psi"  97 Eclipse GST-X 5spd PTE 5031e/pte 880cc/vr4 fuel pump/Devils Own Water injection 12gph nozzle/pre turbo meth injection/fmic 28x10.5x3.5/greddy type-s bov/12" K&N/FP intake/dsmlink/gm 3.3 bar/maft/blitz ebc/act 2600/act 6 puck/SS Clutch line/3" turboback.
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#6
08-03-2005, 12:26 PM
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Re: Re: Turning up the boost.
Quote:
You shouldn't hit fuel cut on your t25 at ANY boost. I mixed a little 110 octane in my tank back when I had the t25 and ran it to ~21psi. I felt no difference in pull and guess what, NO FUEL CUT  That turbo just can't dish out enough airflow. Nuff said 
__________________
 95 GSX DSMlink, "50 Trim", and track times coming VERY SOON!
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#7
08-04-2005, 08:08 PM
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Re: Turning up the boost.
I seemed to hit it when the boost went past 22 at low rpm. Remember fuel cut is grams/rev airflow limit.. so when the RPM are lower, it's more likely. T25 spools fast. No matter though, don't kill the turbo by doing that often, even if you have race gas to counter the knock.
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#8
08-07-2005, 11:34 PM
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Re: Turning up the boost.
So running at high PSI is only bad for the turbo besides the knock. So running at 16 PSI isn't bad for the turbo just uses more gas? And I suppose that running at like 22 psi for too long will warp the turbine or compressor wheel?
__________________
'95 Eclipse GS-T 5-Speed Boost, air/fuel gauge.
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#9
08-07-2005, 11:38 PM
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just keep it conservative. if you know something might happen, it probably will. dont push it to the limit, if you want to run alot then get better parts.
__________________
 96 EJ6. Future home of boosted B18C1.
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