4.8L Performance upgrade options

Engines and Engine Systems
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Michael
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Re: 4.8L Performance upgrade options

Post by Michael »

All are TD42 turbo motors, they just made a mistake on the one dyno sheet stating its a 4.5

Julian, the one producing 180kw is a true reading. Its a very powerfull beast and has severely modified everything. The quick dropoff in power is because of the governer that was set to 3,800rpm initially so fuel was basically nothing at 4,000rpm.
Its been fixed now, but not been on a dyno again.

Peter, glad the power and torque match up :thumbup:
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Michael
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Re: 4.8L Performance upgrade options

Post by Michael »

Oh yes, did a pre dyno on a NA 4.5 and it only produces 88kw and 250Nm on the wheels. Its not in tip top shape, but gives a good idea on how the peteol engine is so different from the diesel engine on the power curve
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Re: 4.8L Performance upgrade options

Post by CarloG »

FUEL CONSUMPTION UPDATE
As promised here are some fuel consumption figures pre- the upgrade and post. (recall that i changed the manifolds - ceramic coated - installed a free flow exhaust and had a unichip installed) Filter is still standard although a k&n is going in this week. ( :naughty: we've had this online debate - im trying it anyway :biggrin: )

Below a summary.
- The towing figures are based on towing my boat which has the aerodynamic properties of a large country cottage. The before and after were almost the same route as well and incorporate going to the coast and back.
- The post conversion towing figures include half of those km towing at 130km/h at about 26l/100. I would therefore estimate about 22L for general towing at my normal speeds of 100 which is a 10% improvement.
- the best I got without towing was 16l/100 over a 1000km stretch - thats a 28% improvement.

So.... conclusions:
1. in rand savings its not going to make for a great ROI vs the cost... but thats not why we bought a patrol in the first place!
2. It does however mean that i have saved taking an extra jerry can on my 6 week 7000km botswana trip in December/January.
3. Pity that the performance itself is not noticable as outlined in the discussion earlier in the thread.
Fuel Consumption.JPG
Fuel Consumption.JPG (76.82 KiB) Viewed 3360 times
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Re: 4.8L Performance upgrade options

Post by PathMaker »

Perhaps with all what has been said and done, continplated and decided for and against, you should make a turn by Graham and I and have a ride in Storm.
We bought her at 330000km, little tired and having head gasket issues.
We had the head checked and overhauled at Vander linde. Put a turbo in with all the necessary bells and whistles. Did the viper exhaust, new specialised turbo manifold, ceramic coated, manifold, pipes, down pipe and even turbo itself. Unichipped at Dastek by Albert. Etcetera, etcetera .
Yes, some learning curves included broken piston but now we know how to bypass this ever again.
Storm has increased by 100kw output and runs at about 315 bhp on the wheels. With no special juices and gases.
She is my daily drive, have put on over 15000km since fixing piston problem and it is still purring like a kitten.
Did the 2019 dune trip, and had a blast. Performed well.
Went down to south coast and got 7.2km/l.
If you need to talk to people that have done it give us a call and come have a test drive.
We have now completed our 5th turbo conversion so maybe there are some other happy people to give you feedback too. Graphs and say so will never give you "die krag in die broek gevoel" and a reliable and fastest Patrol in SA.
Give us a shout or don't it is up to you!
Chow for now. Vanessa

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Re: 4.8L Performance upgrade options

Post by hugejp »

I must admit, I cant imagine my 4.8 without the turbo... :mytwocents:
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Florian320
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Re: 4.8L Performance upgrade options

Post by Florian320 »

I know, the question is old, but how much do you have to calculate for turboing an TB45E-engine if it should last?
A rough number would be enough for me (+- 10000ZAR).

It must be so nice to have this engine with a bit more power in the upper revs!

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Re: 4.8L Performance upgrade options

Post by hugejp »

Florian320 wrote:
04 Feb 2020 14:01
I know, the question is old, but how much do you have to calculate for turboing an TB45E-engine if it should last?
A rough number would be enough for me (+- 10000ZAR).

It must be so nice to have this engine with a bit more power in the upper revs!


viewtopic.php?f=43&t=8077
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XenoBlitz
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Re: 4.8L Performance upgrade options

Post by XenoBlitz »

What JP said. :bravo:

Just to provide some sort of update: Its been a while driving this vehicle, and I still smile every time I "drive like Tinus". I'm McDonalds (lovin it). :blonde:
May the road be long.. and dirty.
The 4.5 Turbo

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