Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!

-   Engine - Turbo & Block (https://www.turbododge.com/forums/f19/)
-   -   Performance (https://www.turbododge.com/forums/f4/f19/1251151-performance.html)

86_shelby 02-27-2019 06:33 PM

Performance
 
Is it possible to safely push 20psi out of a 2.2l turbo, I would also like to take the electronic waste gate off this turbo

masterjr3333 02-27-2019 08:18 PM

Re: Performance
 
the turbo can take 20 PSI. sure. even more than that.

but.



your computer cant.

your fuel injectors cant

your MAP sensor cant read it.

your lack of intercooler can't handle the heat.

and if you try it without accounting for these other things, you will get to meet your pistons face to face realllllyyyyy quickly.

NAJ 02-28-2019 07:48 AM

Re: Performance
 

detobias 03-01-2019 06:24 AM

Re: Performance
 
a properly functioning stock fuel system and ECM etc. will safely allow and provide fuel for boost up to 14 psi;
more than that and you're beyond what the '2-bar' MAP sensor can read,
the ECM won't allow that, and give you an Overboost Fuel Cutoff ..

chromguy 03-01-2019 08:14 AM

Re: Performance
 
Quote:

Originally Posted by detobias (Post 4504383)
and give you an Overboost Fuel Cutoff ..

I am starting to get used to the cutout as it happens every other week when the seat sticks on my MBC. First 20 times it happen it freaked me out. You are screaming along at WOT, through the gears and then the engine "dies". WTF is your first thought and THEN "Oh ya....right, I remember now...CUTOFF"

NAJ 03-01-2019 08:47 AM

Re: Performance
 
1 Attachment(s)
Quote:

Originally Posted by chromguy (Post 4504387)
I am starting to get used to the cutout as it happens every other week when the seat sticks on my MBC. First 20 times it happen it freaked me out. You are screaming along at WOT, through the gears and then the engine "dies". WTF is your first thought and THEN "Oh ya....right, I remember now...CUTOFF"

And this is the MINIMAL amount of damage you may/will incur if you constantly hit "overboost cutout".

Attachment 253195

chromguy 03-01-2019 08:58 AM

Re: Performance
 
Quote:

Originally Posted by NAJ (Post 4504389)
And this is the MINIMAL amount of damage you may/will incur if you constantly hit "overboost cutout".

For the record I try to avoid pressures over 12 psi.

GLHNSLHT2 03-01-2019 09:58 AM

Re: Performance
 
True grainger valve FTW. Though on a stock T2 turbo setting the boost level for 14.5psi and turning off the cutout in the ECU is just as good.

detobias 03-01-2019 10:46 AM

Re: Performance
 
Quote:

Originally Posted by GLHNSLHT2 (Post 4504401)
True grainger valve FTW. Though on a stock T2 turbo setting the boost level for 14.5psi and turning off the cutout in the ECU is just as good.

+1 I've been happy with the 'repeatability' of my 'true' G-valve ..

I try to run 13ish psi to give less chance of a transient overboost and resulting Fuel Cutoff ..

well that and a zener ;)

masterjr3333 03-01-2019 12:02 PM

Re: Performance
 
I seem to always have creep and cut off with my graingers.. some days 12-13 PSI.
some days creep to 14 and OBSD

midwestmopar 03-05-2019 09:47 AM

1 Attachment(s)
My spirit was overboosting when I bought it, drove it about 700 miles home before I out a gauge on it and found out, fixed the problem and bam 4th cyl rod gone.

INSATANSSEAT 03-05-2019 12:08 PM

Re: Performance
 
I'd like to hear more about what happened to cause that in your Spirit. Especially if you're from anywhere near St. Louis.

Is it an ES 2.5 turbo?

midwestmopar 03-05-2019 01:12 PM

Indiana, and its a 2.2


All times are GMT -5. The time now is 09:20 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

 
For the best viewing experience please update your browser to Google Chrome