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Thread: 4.6 Transplant...A new lease of life !!

  1. 19th May 2025, 05:01 AM #21
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    Quote Originally Posted by Traco View Post
    Did you keep the 14 CUX ECU or go with the TRS recommended Haltech conversion? The former can handle the fueling ok throughout most of the rev range but it can struggle at the top end when it leans out. A Tornado chip will help of course and cheaper
    Still running the 14CUX...... It actually seems to be handling it very well !! Cant believe how much low down torgue this thing has! It is also extremely willing to rev .. Could not go back to a 3.9 powered Disco!!!

    I tried the Tornado chip avenue..BUT after many emails to Tornado Systems themselves and a couple of resellers...with no response i will be going down the haltech route as was recommended by Ian from TRS..
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  2. 19th May 2025, 08:34 AM #22
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    Absolutely recommend Haltech.

    Aussie company, Incredible support and best in class development.

    Have used their gear and now it's so widely known in industry that pretty much every tuner in the country has already got (or can get) their head around it, and most dyno operators also have knowledge of same.
    Roads?.. Where we're going, we don't need roads...
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    MY93 RRC LSE 300tdi/R380/LT230 British Racing Green
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  3. 21st May 2025, 05:33 AM #23
    discomatt69
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    I would also recommend 4 hole yellow top borsch injectors to replace the standard injectors, much better spay pattern
    Discovery 1 4.6, true trac front and rear, superior engineering arms,old tourer now bush toy
    Discovery 4 3.0 HSE MY13 ECB Bull bar, winch, spot lights, aux fuel tank, Kaymar rear bar, duel wheel carriers, 18 tuff ant wheels 265/65/18 BFG KO2's for play
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  4. 24th May 2025, 05:50 PM #24
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    Quote Originally Posted by discomatt69 View Post
    I would also recommend 4 hole yellow top borsch injectors to replace the standard injectors, much better spay pattern
    Borsch injection sounds like it came from a Lada... Doesn't the Borsch injector have a beetroot coloured top and come with a bottle of anaesthetic to fix the spay pattern?


    Ich glaube, die deutschen Bosch-Injektordeckel sind gelb
    Roads?.. Where we're going, we don't need roads...
    MY92 RRC 3.9 Ardennes Green
    MY93 RRC LSE 300tdi/R380/LT230 British Racing Green
    MY99 D2 V8 Kinversand
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  5. 25th May 2025, 07:52 AM #25
    discomatt69
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    Quote Originally Posted by Mercguy View Post
    Borsch injection sounds like it came from a Lada... Doesn't the Borsch injector have a beetroot coloured top and come with a bottle of anaesthetic to fix the spay pattern?


    Ich glaube, die deutschen Bosch-Injektordeckel sind gelb
    Well spotted , should have checked the spelling , these ones
    Just a moment...
    Discovery 1 4.6, true trac front and rear, superior engineering arms,old tourer now bush toy
    Discovery 4 3.0 HSE MY13 ECB Bull bar, winch, spot lights, aux fuel tank, Kaymar rear bar, duel wheel carriers, 18 tuff ant wheels 265/65/18 BFG KO2's for play
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  6. 30th May 2025, 06:11 PM #26
    Richard Kaye
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    How many litres per 100km are you getting from the 4.6 around town and on the freeway?
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  7. 31st May 2025, 04:38 AM #27
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    Quote Originally Posted by Richard Kaye View Post
    How many litres per 100km are you getting from the 4.6 around town and on the freeway?

    Much to my ( pleasant) surprise, its around 15l per 100km.
    The old 3.9 was 20-22l per 100km.
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  8. 31st May 2025, 10:15 AM #28
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    Quote Originally Posted by wooferocau View Post
    Much to my ( pleasant) surprise, its around 15l per 100km.
    The old 3.9 was 20-22l per 100km.
    Yep that is close to my experience with the 4.6 in a heavy D2 with plenty of fruit on it. Mine is usually 14.5 around town and 13 to 15 on the highway at 100kph depending on whether i am at GVM with a roof load etc. Mine is a 5 speed manual and 31 inch Duratracs. Cheers
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  9. 31st May 2025, 11:39 AM #29
    Richard Kaye
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    I have a 4.6 in my 1988 RRC. Heads have been cleaned up, extractors, 218 @ 50 camshaft, 10:1 compression, manual 5 speed gearbox and standard size tyres.

    I have an Impco 425 setup on a 4-barrel intake manifold with closed loop feedback.

    Using around 22 l/100km, pretty much the same as the original 3.5 used with the old fuel injection system. It was pre 14CUX.
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  10. 31st May 2025, 04:19 PM #30
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    Quote Originally Posted by ozscott View Post
    Yep that is close to my experience with the 4.6 in a heavy D2 with plenty of fruit on it. Mine is usually 14.5 around town and 13 to 15 on the highway at 100kph depending on whether i am at GVM with a roof load etc. Mine is a 5 speed manual and 31 inch Duratracs. Cheers

    On a steady HWY cruise i actually did achieve 13l per 100km....so yeah not bad at all.

    I run 33 inch MT,s and carry quite a load in MSA slide out boxes in the rear section .....( she,s only a 2 seater now... )
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