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what's the maximum boost you want to run on a stock turbo

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Old 12-04-2004, 12:22 AM
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what's the maximum boost you want to run on a stock turbo
Old 12-04-2004, 06:38 AM
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21-22 I would say..but will be pretty darn inefficient at those levels.
Old 12-04-2004, 12:13 PM
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Default Agree with Cpayne... 21-22... but it's really not worth it. -> more inside

I used to run 21-22 on the stock turbo but honestly, it does feel good. It's very inefficient running that much boost, it's not smooth, and it's not giving you much power.

Running it at 18 vs 22 the car was about 2/10 of a second slower in a 1/4 mile... and it feels much much better at 18 max... you can floor the car without feeling bad for it.

So... to make a long story short... 21-22 is doable, but I don't think worth while. I believe around 18 is the max "reasonably usable boost".
Old 12-04-2004, 12:22 PM
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r u running 18, just back off the WG a little?
Old 12-04-2004, 01:00 PM
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I max at 22lbs but I rarely let it boost that high before I shift.
Old 12-04-2004, 02:11 PM
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Default eh, ive been at 22psi for the last 40k miles and i drive it hard

turbo never seems to complain. The key is proper warmup, cooldown and 10w40 synthetic. I keep it out of the boost until the oil temp needle has gone to the first hash mark on the gauge.
Old 12-04-2004, 04:13 PM
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Default Re: eh, ive been at 22psi for the last 40k miles and i drive it hard

what is a proper cool down. Letting it sit idling for a while? I usually crawl slow as soon as I enter our development and at least a minute or less when inside the garage..

What brand oil are you using? I just swithced to 10W40 but was unable to find Mobile 1. So I used Castrol Synthetic. Just wondering.
Old 12-04-2004, 04:29 PM
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Default Amsoil is what I'm using, it's fantastic........

I've sent it out for anaylsis after use and was told that I could easily get 7-9K miles between changes, at 5K miles it was still well within the proper limits.
Old 12-04-2004, 08:30 PM
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Default I use syntec 10w40 and proper cooldown is not beating it the last few minutes of the drive

I just take it easy on the boost for the last few
Old 12-04-2004, 08:35 PM
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30sec cooldown should do it after normal run. give it 60 for a hot run.


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