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  #1  
Old 09-26-2005, 12:31 PM
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Default Max boost 1.8T can handle?

Hi all.This is my first post here.I dont have an A4 but in the mean time till I get my car im driving my father's B5 1.8T.I think its pretty quick for such a heavy.Not looking to modify the thing but just want to get some general info since Audi's seem like nice cars.Whats the max boost that the 1.8T engine can take?
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  #2  
Old 09-26-2005, 02:23 PM
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Default RE: Max boost 1.8T can handle?

On a ko3 ?
22PSI is pushing it ..
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Old 09-26-2005, 03:01 PM
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Default RE: Max boost 1.8T can handle?

Not on a K03>im just asking in general...but ur saying the stock k03 can go so high??Wont it start to be inefficient?Whats the stock boost on the 1.8T?
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Old 09-26-2005, 07:34 PM
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Default RE: Max boost 1.8T can handle?

I belive 11psi?
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Old 09-26-2005, 08:01 PM
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Default RE: Max boost 1.8T can handle?

Quote:
ORIGINAL: gsxr150

I belive 11psi?
Stock boost is 7-8 PSI

Chipped is about 14-15PSI
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Old 09-26-2005, 08:33 PM
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Default RE: Max boost 1.8T can handle?

i had 22 psi on my turbo
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Yeah you are a boost *****.
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Old 09-26-2005, 08:39 PM
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Default RE: Max boost 1.8T can handle?

From what I've seen, 1.8Ts can handle mid to upper 20s before internals need to be replaced. Your starting off with a fairly low compression engine so your allowed more boost.
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Old 09-26-2005, 09:09 PM
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Default RE: Max boost 1.8T can handle?

it depends on what turbo, what timing, ambient air temps etc. I've hit around 30 on several occasions by accident on a ko4 and gt28rs
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Old 09-26-2005, 10:05 PM
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Default RE: Max boost 1.8T can handle?

Quote:
ORIGINAL: Dave666

Quote:
ORIGINAL: gsxr150

I belive 11psi?
Stock boost is 7-8 PSI

Chipped is about 14-15PSI
for the B6
stock boost peaks at 0.7 bars about 10PSI
and holds around 0.5 bars about 7PSI
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Old 09-26-2005, 10:20 PM
 
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Default RE: Max boost 1.8T can handle?

atp runs like 36 psi on their kits to make the power it does...or was it 26 psi i dunno but thats on a gt2871rs and gt28rs
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Old 09-26-2005, 10:54 PM
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Default RE: Max boost 1.8T can handle?

Ive done about 31psi once,not intended.
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  #12  
Old 09-27-2005, 10:22 AM
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Default RE: Max boost 1.8T can handle?

stock boost is most definitely about .6 bar. The reason I know that is because I can't get my boost controller to change it....lol.....it sucks, especially on the 28r.
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  #13  
Old 05-17-2012, 12:14 PM
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They can handle up to 20 roughly psi? My 97 a4 1.8t was hesitating under full throttle, producing 20-22 psi cause there was too much air in the cylinders. Simply not enough fuel.
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Old 05-17-2012, 12:34 PM
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So if stock is 10psi and my boost gauge is peaking at 7 could that be because of my after market FMIC? Or am I leaking boost somewhere
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Old 05-17-2012, 12:37 PM
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My apologies, I read the b6 stock psi. Looks like everything is good
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Old 05-24-2012, 11:00 PM
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i am trying to run like 16 psi with a boost controller but feel like im getting fuel cutout after 14 psi is it fuel cutout or could there be another problem mabe a boost leak any help would be appreciated thanks
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Old 05-25-2012, 07:45 AM
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Quote:
Originally Posted by marting729 View Post
i am trying to run like 16 psi with a boost controller but feel like im getting fuel cutout after 14 psi is it fuel cutout or could there be another problem mabe a boost leak any help would be appreciated thanks
This is really bad idea. You're relying on reactionary fueling, where you'll run lean until the O2 sensor tells the ECU to increase fuel. Get a chip and go with that so you can run higher boost safely and with proper fuel and timing control.
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Old 05-25-2012, 07:45 AM
 
 
 
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01, 18, 18t, 2001, 2002, 50, 97, a4, audi, boost, hold, max, maximum, psi, trim


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