2.0 DI Turbo upgrade

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Robbo9006

New Member
Posts
40
My 2.0 DI Turbo Freelander 1 seems to be letting oil slightly.

As i am going to take it of and have it serviced.

Is there a upgraded turbo i could procure to bolt straight back on as a upgrade Mod.

Thankyou
 
o ok thats good.
So is it a remap or ive heard mention of the ron box.
Also would putting a turbo control valve on and maybe a boost gauge work well.
What would be the higher limits of the turbo ,as in what boost could i run?
 
21 PSI Peak / 19 PSI Continuous is known as safe limit. MBC (Manual boost control) is a good option, even if using stock boost value. It changes characteristic of boost. Normally wastegate opens gradually when boost increase, when MBC fitted W/g opens when limit value is reached, so you got a nice boost response/lower lag.

An boost gauge in my L-Series:
Boost Gauge - YouTube

And new set for RONbox:
g2.jpg


Few tips from experience:

- When choosing MBC make sure it's a "ball type" - i use Turbosmart one.
- It's very possible that your old boost pipes can't handle boost increasing , so be prepared ;) - I made solid boost pipes with silicone couplers - it's also make better boost response.
-Boost when adjusting should be checked with some autologic/hawkeye software. Why? because a gauge is only information for you, readings can be distorted by gauge quality, mounting hardware,measure point ect. So you should know what value of boost is "seen" by ECM
-Higher oil temps can be noticed. You should observe it. I need change oil grade to 10W60 (we've got high ambient temp on summer, and some more heat from engine/turbo) because stock 10W40 can't handle . Previous peak temp was 100-105*C on normal (City), and 110-115*C when high speed cruise/Off Road . Now it have 110*C on normal and can go up to 119-120 *C when off road/fast cruise.

p.S
Do not "fun" with boost/fueling without Boost/TIT (Turbine inlet) monitoring ;) it will be pretty bad when limits (650*C /1200 *F for TIT) exceeded.
 
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Cheers its not my main priority but i would like to do this.

Thankyou it sounds good.
boost/fueling without Boost/TIT (Turbine inlet) monitoring
can you tell me more about this?
 
boost/fueling without Boost/TIT (Turbine inlet) monitoring
can you tell me more about this?

'winu' wrote:
" Do not "fun" with boost/fueling without Boost/TIT (Turbine inlet) monitoring it will be pretty bad when limits (650*C /1200 *F for TIT) exceeded. "

i think the talk be about turbo temperature .. if it gets too high .. it will melt bits of the turbo ..
adding more fuel will up the exhaust temperature ..
so it should be monitored ..

~~~~~~~

on large diesels there's sometimes a 'pyrometer' gauge ..
that gauge monitors exhaust temps ..
so the driver can back-off the go-pedal if temps. get too high for the turbo
 
'winu' wrote:
i think the talk be about turbo temperature .. if it gets too high .. it will melt bits of the turbo ..
adding more fuel will up the exhaust temperature ..
so it should be monitored ..
Exactly :)
We've got few useful terms:
EGT - Exhaust gas temperature. This means how hot are you exhaust gases. They run a turbocharger. We can measure it in two points:
TIT - Turbine inlet temperature - probe place before TC on end of exhaust manifold - most accurate
TOT - Turbine outlet temperature - probe placed after TC on downpipe to exhaust. - lowered readings for tuning and normal monitoring but useful for turbo cool down.

If you change fueling or/and boost you change value called AFR (air to fuel ratio). If you create rich mixture - your EGT will be higher. This can be done by two ways :
-Too much of fuel
-Too small of air

So you should know how high your EGT's and how high is your boost for engine safety. Too high EGT's can damage Turbocharger and Engine (pistons and piston rings).
TiT is the best (IMO) measure point for EGT - you will see temperature of exhaust gases outing from engine and going to turbocharger...

If EGT will be above safe limit, you will know that you have too small amount of air (verifying by boost reading), or you dosage to much fuel (if boost is correct). Test should be performed on heavy load (towing, high speed cruise).
 
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