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Author Topic: [2g] 92 octane ok @ 14psi?  (Read 1891 times)

Offline an nguyen

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[2g] 92 octane ok @ 14psi?
« on: September 24, 2004, 07:57:20 pm »
hi, i'm a 2g newbie and wonder if 92 octane is ok @ 14psi.  I don't believe the engine has any mods.

i looked at vfaq.com but the answer didn't seem obvious.
thanks for any tips!
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Offline Aaron Moore

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[2g] 92 octane ok @ 14psi?
« Reply #1 on: September 24, 2004, 08:04:05 pm »
That's because there is no obvious.  You need to datalog your results, and see how much knock you are getting.
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Offline Robin Toor

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[2g] 92 octane ok @ 14psi?
« Reply #2 on: September 24, 2004, 08:09:54 pm »
It should be fine.
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Offline Mike Meron

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[2g] 92 octane ok @ 14psi?
« Reply #3 on: September 24, 2004, 09:57:24 pm »
c16 will prevent knock at all boost levels
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Offline Marty van den Bosch

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[2g] 92 octane ok @ 14psi?
« Reply #4 on: September 24, 2004, 10:35:48 pm »
14PSI and NO mods is not a good idea - let alone on mid grade gas.

Do some of the free mods in VFAQ and consider improving your flow (K&N/Cat-back)
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Offline Chris Andrews

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Re: [2g] 92 octane ok @ 14psi?
« Reply #5 on: September 24, 2004, 10:36:25 pm »
Quote from: "an nguyen"
hi, i'm a 2g newbie and wonder if 92 octane is ok @ 14psi.  I don't believe the engine has any mods.

i looked at vfaq.com but the answer didn't seem obvious.
thanks for any tips!


You might be ok, or you might not.

The safest course of action is to turn the boost down until you have someone log your car for knock.
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Graeme Shaw

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[2g] 92 octane ok @ 14psi?
« Reply #6 on: September 24, 2004, 10:38:24 pm »
Short answer, yes.  Long answer see above.
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Offline Wayne Barbaza

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[2g] 92 octane ok @ 14psi?
« Reply #7 on: September 24, 2004, 11:14:27 pm »
he's a 2G so I thought 14psi w/ no mods was ok cuz thats pretty much the stock setting
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Offline Lawrence Hahn

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[2g] 92 octane ok @ 14psi?
« Reply #8 on: September 24, 2004, 11:28:48 pm »
i thought 14psi is stock too  :roll:
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Offline Matthew Giene

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[2g] 92 octane ok @ 14psi?
« Reply #9 on: September 25, 2004, 12:25:09 pm »
Quoted from 1000Q.

'1G cars have a stock boost pressure of 8-12 psi. 2G cars have 10-15 psi. The service manual allows lower pressures, but those are rarely seen in actual vehicles.'
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Offline Chris Andrews

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[2g] 92 octane ok @ 14psi?
« Reply #10 on: September 25, 2004, 08:01:55 pm »
Seems like 2G boost is one strange animal........

http://www.ca.dsm.org/cgi/ultimatebb.cgi?ubb=get_topic;f=2;t=003653
http://www.ca.dsm.org/cgi/ultimatebb.cgi?ubb=get_topic;f=1;t=001438
http://www.ca.dsm.org/cgi/ultimatebb.cgi?ubb=get_topic;f=2;t=001259

A range of 10-15?   :laugh:

I guess 2Gs have maybe 3 or maybe 4 pistons too.......  :wink:
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Offline an nguyen

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[2g] 92 octane ok @ 14psi?
« Reply #11 on: September 27, 2004, 09:24:28 am »
already have k&n and catback; didn't consider them engine mods tho so that's why i said no engine mods.

thanks again all for the info!

Quote from: "Marty van den Bosch"
14PSI and NO mods is not a good idea - let alone on mid grade gas.

Do some of the free mods in VFAQ and consider improving your flow (K&N/Cat-back)
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Offline Marty van den Bosch

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[2g] 92 octane ok @ 14psi?
« Reply #12 on: September 27, 2004, 09:31:38 am »
From the other posts - looks like I am wrong anyway  :roll:

Did not think 2Gs started base with that much boost.
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Offline Martin Raska

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[2g] 92 octane ok @ 14psi?
« Reply #13 on: September 27, 2004, 11:47:12 am »
an, I watched your boost gauge, it maybe spikes to 14 at one point, but in the upper range it's back down to about 11.
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Offline Ritchie Hui

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[2g] 92 octane ok @ 14psi?
« Reply #14 on: September 27, 2004, 01:47:32 pm »
Quote from: "Marty van den Bosch"
From the other posts - looks like I am wrong anyway  :roll:

Did not think 2Gs started base with that much boost.


That's cause 2gs come with the crappy t25, so they need to icnrease psi to make up the small cfm it flows :P

1gs have the superior 14b :).
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