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boost pressure........

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  #1  
Old 01-28-2006 | 08:33 PM
y2karnival's Avatar
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Default boost pressure........

just wondering if anyone knows what kinda pressure i should be pushing with a 99 1.8 with only a giac ecu? i just installed my boost gauge and it went anywhere from 12-14psi, but my friend said that it dropped down to 6 when i was at 6000rpm..i believe that the ko3 stops making power at 5500...dont know if that is normal or not. also, anyone know what the vacuum should read when idling? (somewhere between 20-30??)
 
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Old 01-28-2006 | 08:35 PM
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Default RE: boost pressure........

ORIGINAL: y2karnival

just wondering if anyone knows what kinda pressure i should be pushing with a 99 1.8 with only a giac ecu? i just installed my boost gauge and it went anywhere from 12-14psi, but my friend said that it dropped down to 6 when i was at 6000rpm..i believe that the ko3 stops making power at 5500...dont know if that is normal or not. also, anyone know what the vacuum should read when idling? (somewhere between 20-30??)
my giac gives me around 17-19 boost and vaccum is about 20.
How long have you had the chip? Did you get a new diverter valve?
 
  #3  
Old 01-29-2006 | 02:19 AM
y2karnival's Avatar
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Default RE: boost pressure........

had the chip for little over a week...17-19psi.huh........interesting..i got the 710n just havent been able to put it in yet...any easy way to do it?
 
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Old 01-29-2006 | 02:21 AM
ZedEx's Avatar
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Default RE: boost pressure........

It's not hard... At all.

Get a TiAl 50mm Blow-Off Valve, that thing won't leak any pressure, haha.
 
  #5  
Old 01-29-2006 | 02:54 AM
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Default RE: boost pressure........

GIAC is what, 1.1 or 1 bar?

1 bar = ~14.5
1.1 bar = ~15

I'm running APR with a CAI and I peak at around 20-22 and taper off to around 17-18psi.
 
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