Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Should I run 1 Step or 2 Step with 14psi 2.87"

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Old May 15, 2003 | 04:29 AM
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Should I run 1 Step or 2 Step with 14psi 2.87"

I just jumped down to the 2.87" pulley. On the boost gauge it's reading 15psi. I know it's off about 1 or 2 psi.. I'm currently running 1 step cold ngk platinum plugs. Is there any reason I should worry and run 2 step colder instead? I don't hear any knocking or feel detonating..
Old May 15, 2003 | 05:28 AM
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time for a J&S
Old May 15, 2003 | 05:33 AM
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I think I'm gonna run and grab some iradium 2 step plugs this weekend just be on the safe side. Does that sound like a good idea?
Old May 15, 2003 | 05:40 AM
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if you have coppers in there now, I would regap them. Dyno time
Old May 15, 2003 | 06:10 AM
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Yeah I just ordered some 2 step cold NGK Platinum plugs from DaveB..

I'm gonna try to hop on the dyno machine on Sat or Mon
Old May 15, 2003 | 07:03 AM
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Fuel pressure..... remember what we talked about.

Good luck!
Old May 15, 2003 | 07:33 AM
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Originally posted by Y2KevSE
Fuel pressure..... remember what we talked about.

Good luck!
Yeap.. I checked and it seems to be running fine. A lil on the rich side though but ok. When I boost in 3rd it goes up to like 70-80 when doing like 100mph. But weird when I downshift from 5th to 4th and floor it the fuel pressure spikes to like 90-100 but then settles back down..
Old May 15, 2003 | 09:41 AM
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15psi off the 2.87 at what rpm? I can't see that acually happning unless you take it past the normal maximum shift point.
Old May 15, 2003 | 10:39 AM
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I don't know if it's because I have a auto ECU in my 5spd or not. Weird thing is that 1-3 redlines like 6500 (da norm) but 4thgear redlines past 7K which is weird.. Af for 5thgear I didn't even redline it yet going 155mph
Old May 16, 2003 | 03:32 AM
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dont you need to upgrade your fuel pump? or does ur AFC take care of that?


im aware im in the wrong forum
Old May 16, 2003 | 04:10 AM
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The fuel pump is on order... Just gotta wait to install it now. But don't worry.. you can help push my car when my motor blows
Old May 16, 2003 | 04:18 AM
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Originally posted by PCGuRu2K
The fuel pump is on order... Just gotta wait to install it now. But don't worry.. you can help push my car when my motor blows
o yea, definately waiting for that phone call when it happens

BTW how does the smaller pulley feel? i forgot to ask you
Old May 16, 2003 | 04:22 AM
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Originally posted by ToYLeT902
o yea, definately waiting for that phone call when it happens

BTW how does the smaller pulley feel? i forgot to ask you
I'll let you drive this weekend and you tell me
Old May 16, 2003 | 04:24 AM
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Originally posted by PCGuRu2K


I'll let you drive this weekend and you tell me
nice! mad girls are gonna b sweatin me in ur ride
Old May 16, 2003 | 04:54 AM
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Originally posted by ToYLeT902
nice! mad girls are gonna b sweatin me in ur ride
Just as long and you share the girls it's ok
Old May 16, 2003 | 11:54 AM
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Originally posted by PCGuRu2K


Just as long and you share the girls it's ok
Old May 18, 2003 | 08:51 AM
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the pulley wasnt dat great or my car was weird. when we were running my boost gauge only read 9 psi. i couldnt go any higher for some reason. it might be the atmosphere we were at. so close to the water. But hows ur car danny. My bad that i keep on trying to race you. i wont ask no more.
Old May 18, 2003 | 11:03 PM
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good job ... Q

Danny - 0
BLOWN TRANNIES - 2
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