Optimum boost psi?

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Optimum boost psi?

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Mitsubishi Forums >> Tech Help and Information >> Nitrous, Super Chargers, & Turbos >> Optimum boost psi?

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Optimum boost psi? - 9/19/2007 8:57:01 PM

newguy2007

Posts: 75
Joined: 9/19/2007
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I need to know what boost pressure i should set my car at. This is all the mods that are in my car:
6 bolt swap, with all new accessories WP, timing components,seals, 160 psi in all 4 cylinders. act clutch kit 2100lb, EVO III turbo, 680cc fuel injectors, Super-AFC II, FMIC & piping, greddy type-s BOV, greddy turbo timer, boost an air fuel guages, brake up grade kit, 4 tokiko struts, H&R springs, front camber kit, 3in tanabe exhaust

I will probably be buying a joe p mbc. Could anyone tell me what would be best to set it at without engine damage and without having to dyno it? Or atleast how to tune it myself??

Also, what hp do you think this car has. The guy im buying it from said right now he is running 12psi.

< Message edited by newguy2007 -- 9/19/2007 9:12:27 PM >

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RE: Optimum boost psi? - 9/19/2007 9:47:57 PM

Sebba

Posts: 13998
Joined: 2/20/2006
From: San Antonio, TX
Status: offline

Get a 190lph fuel pump and boost to 23 psi : )

Oh ad a front mount intercooler..

Right now the car is prolly at 250hp

< Message edited by Sebba -- 9/19/2007 9:51:49 PM >

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RE: Optimum boost psi? - 9/19/2007 10:17:40 PM

newguy2007

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Joined: 9/19/2007
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When i boost to 23 psi how much hp will i get? Also will i need to get a tune for that on the dyno?

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RE: Optimum boost psi? - 9/19/2007 10:19:16 PM

Sebba

Posts: 13998
Joined: 2/20/2006
From: San Antonio, TX
Status: offline

No you wont need to dyno tune it.

Well depenting how good your tune is... about 350hp.

Also, i hope your tuning with a real a/f gauge that displays an actual number... not a bunch of f-ing LED's. Those are useless.

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RE: Optimum boost psi? - 9/19/2007 10:23:42 PM

newguy2007

Posts: 75
Joined: 9/19/2007
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Isnt FMIC stand for front mounted intercooler? If it does i think i have one. Also i have no tuning equipment i dont think. What do i need? Sorry for all the stupid ques. im new

Heres a link to the car:: http://cgi.ebay.com/ebaymotors/Mitsubishi-Eclipse-GST-97-Mitsubishi-Eclipse-Gst-Turbo_W0QQcmdZViewItemQQcategoryZ6352QQihZ013QQitemZ230169000047QQrdZ1QQsspagenameZWDVW#ebayphotohosting

Can i still run regular fuel in it?

< Message edited by newguy2007 -- 9/19/2007 10:32:17 PM >

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RE: Optimum boost psi? - 9/19/2007 10:37:28 PM

Sebba

Posts: 13998
Joined: 2/20/2006
From: San Antonio, TX
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You can never run regular fuel in it. EVER EVER EVER. Nothing lower than 92. Only 92 when you have nothing else at hand.

There is a tuning device, the Apexi SAFC II is the tuning device and you tune according to your a/f ratio. How can you know what to adjust if you dont know what your a/f ratio is? Get me? Thats who those stupid LED things are pointless... unless they show exact numbers.

Yea thats what im talking about. All you need is a Walbro 190lph fuel pump and you should be able to boost upto 23psi.

Also, get a picture of these gauges he has.. im curious

Sounds like a nice car

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RE: Optimum boost psi? - 9/19/2007 10:41:57 PM

newguy2007

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Joined: 9/19/2007
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Alright man thanks. when i get the car ill take a shot of the gauges. Thats ****ed up i have to run 92 in this. What would happen if i run reg. in it(i wont)

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RE: Optimum boost psi? - 9/19/2007 10:44:26 PM

Sebba

Posts: 13998
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From: San Antonio, TX
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This http://www.misterfixit.com/deton.htm

You have to run at least 92... and only 92 when you have to. You should run it on as high octane as possible.

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RE: Optimum boost psi? - 9/19/2007 10:45:28 PM

Sebba

Posts: 13998
Joined: 2/20/2006
From: San Antonio, TX
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You think you have it bad? Some modified cars MUST run on 116 octane

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RE: Optimum boost psi? - 9/19/2007 10:46:36 PM

newguy2007

Posts: 75
Joined: 9/19/2007
Status: offline

One more dumbass ques. before i go to bed. I wont get as good gas mileage with 92 will i??