Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

max boost with std turbo on 2.8 rodeo

Tech talk for GMH/Isuzu and Great Wall owners

Moderator: Moderators

Post Reply
Posts: 2298
Joined: Sat Jun 11, 2005 11:26 pm
Location: nsw maitland

max boost with std turbo on 2.8 rodeo

Post by cooter »

What are the max boost pressure that the turbo and engine can handle it is 10 psi stock un intercooled id keep the boost at 15 or under but dont want to strain the turbo to much
http://www.4wdaction.com.au/shed/index.php?id=1097&im=1
[quote="squik"]He He... every time I turn off my protection my box gets slammed with spam....
[/quote]
Posts: 104
Joined: Wed Jun 15, 2005 2:07 pm
Location: Ipswich QLD

Post by Guzzi »

A 2.5 inch exhaust and a minor pump tweak will give a boost of 11 to 12 psi, which I would call the limit without an intercooler, for longevity I'd say your call of 15 psi would be about the max..
I never checked the turbo outlet temps though.
Reliability lies in the state of your wallet.........
Enjoy your family,friends and kids,remember no one gets out alive.
Posts: 2298
Joined: Sat Jun 11, 2005 11:26 pm
Location: nsw maitland

Post by cooter »

15 psi would be good enough for what i want i have been spoilt with my old disco 300tdi 20psi boost :twisted: :twisted:
it went quite hard :D
not going to that extent with the deo though
http://www.4wdaction.com.au/shed/index.php?id=1097&im=1
[quote="squik"]He He... every time I turn off my protection my box gets slammed with spam....
[/quote]
Posts: 248
Joined: Fri Jan 16, 2009 12:48 pm
Location: Sth Wst QLD

Post by 300WinMag »

Ran 20psi in my deo for over 100K with IC, EGT gauge, 2.5" pipe. If you go over stock boost you need to block off the overboost valve on the back of the plenum chamber as it vents into the crank case breather and will over pressurise the crankcase and blow out the rear main seal, found that out the hard way. If you drive it to the egt gauge no problems and it will pull like a frieght train. The only problem I had was to much touque as it snaped the spring hanger out of the chassy towing 1ton trailer uphill.
Temporary Australian
Posts: 6728
Joined: Fri Nov 28, 2003 7:45 am
Location: somewhere........ who knows where

Post by Vulcanised »

the standard turbo on a rodeo will only produce 14 psi max with the waste gate disabled. I used to run mine at 12psi but i put an intercooler on it and had it dyno tuned. Went from 72fwkw standard to 89rwkw and torque went up from a factory specified 220nm to 350nm
There is no "I" in Team, but there are 5 in Individual Brilliance
Posts: 248
Joined: Fri Jan 16, 2009 12:48 pm
Location: Sth Wst QLD

Post by 300WinMag »

Your actuator spring must have been weak then.
Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest