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13th December 2011, 02:30 PM
#1
Expert
Controlling Boost in RD28
Hi Guys, Just wondering if after removing the inlet butterfly & blocking the EGR valve on the 2.8's you need to install a boost controller to lower the boost or minimise spikes.
I'm currently rebuilding my engine, and while i'm waiting for parts to be machined and so on i'm buying and installing the little extra's I want/need.
What kind of pressures are you getting after doing these basic mods, does the boost increase much in the 2.8's after doing this, and what kind of safe levels of boost are you running on your engines if you have up'd it.
Im guessing you only need dawes and needle valve for the 3.0l engines to trick the ECU, you should only need a basic controller for the 2.8's yes?
Thanks,
Shaun...
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13th December 2011 02:30 PM
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22nd December 2011, 06:34 PM
#2
Expert
Guess I'll find out tomorrow...
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22nd December 2011, 07:52 PM
#3
Administrator
Shame mate, I'm sorry none of our 2.8 owners can help you on this.
Hopefully someone see's this now and helps you out mate.
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The Following User Says Thank You to AB For This Useful Post:
Shaunous (30th December 2011)
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22nd December 2011, 08:26 PM
#4
Patrol Guru
Hey Shamus,
Im run an RD28T but im running stock standard. Dint know you could tweak the little beastie.
Sorry I cant help mate.
Ynot might be able to shed some light though.
Cheers,
Rob
Just about to jump into my next Patrol. A 2001 GU II TB45E .
WARNING!: Do not ever use a towball as a recovery point. They are not rated and can become a deadly projectile during a recovery if they snap off, and they have done so with tragic results in the past.
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22nd December 2011, 09:33 PM
#5
Expert
All good men, gauges turned up late today, didn't think they were coming, going to wack them in tomorrow, completed rebuild on engine and installed today, started up all good. Take her on its maiden voyage tomorrow under some load.
Cheers,
Shaun..
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22nd December 2011, 10:44 PM
#6
Shaunus, currently lookiing into this myself.
The stock boost on the 2.8TD is 9-11 PSI apparently, and can apparently handle a safe 14psi boost.
The engine and turbo appear to be pretty efficient on our rig, and since installing Boost and Pyro I am yet to see any massive fluctuations.
I have cleand intercooler, removed the intercooler butterfly and blocked the EGR. Also installed a catch can.
Currently looking at a simple in-line boost controller...installed right where I have "teed" off the boost guage pipework.
Then wind the boost up to 13 for a month or 2...see what happens.
If all goes well...fuel adjustment via a Donator box
LINK...http://www.nissanpatrol.com.au/forum...0-Diesel-Chips!
Get your guages installed, drive it for a week or two in all conditions...work out your engines health, at least you have a "start point' for any mods or repairs.
Dave
99 GU 2.8 TD
Brisvegas, QLD
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30th December 2011, 07:33 AM
#7
Expert
Originally Posted by
robbo0001
Shaunus, currently lookiing into this myself.
The stock boost on the 2.8TD is 9-11 PSI apparently, and can apparently handle a safe 14psi boost.
The engine and turbo appear to be pretty efficient on our rig, and since installing Boost and Pyro I am yet to see any massive fluctuations.
I have cleand intercooler, removed the intercooler butterfly and blocked the EGR. Also installed a catch can.
Currently looking at a simple in-line boost controller...installed right where I have "teed" off the boost guage pipework.
Then wind the boost up to 13 for a month or 2...see what happens.
If all goes well...fuel adjustment via a Donator box
LINK...
http://www.nissanpatrol.com.au/forum...0-Diesel-Chips!
Get your guages installed, drive it for a week or two in all conditions...work out your engines health, at least you have a "start point' for any mods or repairs.
Hi Robbo,
Yeh mine runs well and no spikes or anything, have taken it for 2 fairly big runs, one of which had a range involved, today again I am going on another fairly big run with a range in the middle.
Highest boost i get is 8psi under full load, and the hottest I got it was up hill with poor gear selection but got it to 550degree's, my pyro is only 1 inch from the turbine, so im getting as accurate results as you can and fast. It cruises at 6.5psi on the highway and 300-350 degree's.
How does yours compare to mine mate, I'll probably get a boost controller and bring the boost up to 10psi when i get back from work next shift.
Cheers,
Shaun...
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30th December 2011, 08:23 AM
#8
RD28 has a wastegated turbo so only needs a basic type boost controller. Removing/blocking EGR etc should have no effect on boost, it's only the ZD30's with their VNT turbo's and electronically controlled boost that suffer boost spikes after these mods.
Tony
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30th December 2011, 08:49 AM
#9
Expert
Originally Posted by
YNOT
RD28 has a wastegated turbo so only needs a basic type boost controller. Removing/blocking EGR etc should have no effect on boost, it's only the ZD30's with their VNT turbo's and electronically controlled boost that suffer boost spikes after these mods.
Tony
Yeh I did think the boost might come up a bit after blocking the EGR but I spose it's only going to get to full boost quicker rather then get any higher...
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30th December 2011, 08:52 AM
#10
Expert
Oh and yeh I realise it will only need a basic boost controller, fancy looking ricer anadized one, then painted matt black so you cant notice it as much
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The Following User Says Thank You to Shaunous For This Useful Post:
Ben-e-boy (30th December 2011)