is 20psi to much
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2,028 Posts
what octane gas?
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1,408 Posts
you sure as hell better have +40's, 3bar map, and a calibration. Open exhaust will help a lot too. BTW a 2.5 with a 2.2 head is still a 2.5 engine, the 2.2 and 2.5 share the same head
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2,028 Posts
Did you not read this?
http://www.turbododge.com/forums/f4/f15/164661-your-engine-can-destroyed-14-psi.html
http://www.turbododge.com/forums/f4/f15/164661-your-engine-can-destroyed-14-psi.html
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2,752 Posts
MIKE my advise is to not try this until you have someone who is experienced with these issues look over your shoulder as you prepare your engine. there's a lot to do and many factors to consider.....but it can, and has, been done plenty of times.....do not rely soley on posting here, you need a knowledgeable person hands-on. good luck.
noone in my city knows anything about turbos and shops want big dollars to hook stuff like this up its my daily driver and my project.im not going to do anything intill i get the go ahead from someone on here.i hear what your saying.
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88 Posts
Check out this site Donovan's Dodge Garage
A whole lot of info on what you want to do and will need to do to get where you want
A whole lot of info on what you want to do and will need to do to get where you want
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646 Posts
bring it to jersey.. i'll set ya up.
Read the turbo database on Donovan's Dodge Garage Then read it again.
20+ PSI on what you have:
Assumption: You have a '87 or newer blowthrough setup with stock IC.
1.) Walbro 255 lph fuel pump
2.) Adjustable Fuel Pressure Regulator (not 100% necessary, but it helps)
3.) +40 fuel injectors
4.) 3-bar MAP sensor
5.) Computer calibrated for 3-bar MAP and +40's
6.) A good way to monitor air/fuel A/F gauge + EGT or wideband
7.) Free flowing exhaust
I have an '86 shortblock (light weight rods, high mileage) with a slightly ported 782 head, 2-piece intake, the above modifications, stock T2 turbo, stock IC and I run 20 psi regularly. I've had it up to 25 psi, but above 20 there isn't much advantage with the stock turbo and IC. Now, this doesn't promise that you won't destroy things. I have burnt pistons at only 14 psi before. It's all about knowing what to watch for and staying away from detonation.
20+ PSI on what you have:
Assumption: You have a '87 or newer blowthrough setup with stock IC.
1.) Walbro 255 lph fuel pump
2.) Adjustable Fuel Pressure Regulator (not 100% necessary, but it helps)
3.) +40 fuel injectors
4.) 3-bar MAP sensor
5.) Computer calibrated for 3-bar MAP and +40's
6.) A good way to monitor air/fuel A/F gauge + EGT or wideband
7.) Free flowing exhaust
I have an '86 shortblock (light weight rods, high mileage) with a slightly ported 782 head, 2-piece intake, the above modifications, stock T2 turbo, stock IC and I run 20 psi regularly. I've had it up to 25 psi, but above 20 there isn't much advantage with the stock turbo and IC. Now, this doesn't promise that you won't destroy things. I have burnt pistons at only 14 psi before. It's all about knowing what to watch for and staying away from detonation.
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9,290 Posts
just do it, only one way to learn , whats a little psi
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2,752 Posts
agreed.
MIKE a list of parts isnt enough info for you to safely run 20+ psi in your daily driver....read those links others have posted for you and see if you can find a local person to assist you.
MIKE a list of parts isnt enough info for you to safely run 20+ psi in your daily driver....read those links others have posted for you and see if you can find a local person to assist you.
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