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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
3.9 on SUs - which cam?
It's a std 3.9 9.35 block which has been re-bored, decked, the heads have been skimmed as well. That alone will up the CR a bit further. It's staying on carbs and I'd like to keep the drivability of the V8 so not too peaky.

Question: What Cam to keep the nice low end grunt?

Is the Real Steel Hurricane any good or should I be looking at a Kent H180? 90 V8 CSW - 1988
Post #947527 30th Mar 2022 3:39pm
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MercianRover



Member Since: 07 Apr 2022
Location: Culworth
Posts: 141
United Kingdom 1998 Defender 110 300 Tdi CSW Java Black
I ran the same setup and used the standard camshaft and BDR profile needles.
Post #949014 11th Apr 2022 1:53pm
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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
Thanks - I have already switched to BBWs and it's made a massive difference to drivability.

My thinking is that a slightly improved cam will just give that extra 'spark' over a std one. 90 V8 CSW - 1988
Post #950997 29th Apr 2022 11:46am
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MercianRover



Member Since: 07 Apr 2022
Location: Culworth
Posts: 141
United Kingdom 1998 Defender 110 300 Tdi CSW Java Black
Do you have the 3.9 exhaust setup?

Probably as well to get the distributor rebuilt and give the ignition system a refresh - Lumenition is another thing to consider.
Post #951007 29th Apr 2022 2:28pm
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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
Yes, I have got the 3.9 exhaust on it already.

Does the electronic ignition really make that much of a difference? 90 V8 CSW - 1988
Post #953492 24th May 2022 3:02pm
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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
Leaning towards this one: https://www.v8tuning.co.uk/custom-ground-camshafts 90 V8 CSW - 1988
Post #954179 31st May 2022 2:01pm
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MercianRover



Member Since: 07 Apr 2022
Location: Culworth
Posts: 141
United Kingdom 1998 Defender 110 300 Tdi CSW Java Black
MercianRover wrote:
Do you have the 3.9 exhaust setup?

Probably as well to get the distributor rebuilt and give the ignition system a refresh - Lumenition is another thing to consider.


No more faffing around with points gap and suffering the results of vaiable condensor quality, just a consistent spark under all conditions.
Post #955041 9th Jun 2022 1:09pm
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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
Thanks - I'll have a look at that when the engine gets built 90 V8 CSW - 1988
Post #955604 15th Jun 2022 4:22pm
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Ohlins



Member Since: 20 Oct 2009
Location: French Pyrénées
Posts: 28
France 
My 3.9 on SU carbs has this one fitted...strong low end to mid range power.


https://crower.com/camshafts/land-rover/la...00cid.html


https://crower.com/printcamcard/?part_num=55229&x=0&y=0



All the best



. Army 110 3 Door 200tdi
Army 110 3 Door V8
Army Lightweight 2.25 Petrol
110 300tdi 5 door
Yamaha XT660Z Ténéré
Gas Gas 300EC Ohlins
Post #973490 5th Dec 2022 4:11pm
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MercianRover



Member Since: 07 Apr 2022
Location: Culworth
Posts: 141
United Kingdom 1998 Defender 110 300 Tdi CSW Java Black
Red line is pretty low on that Crower cam, admittedly the Rover V8 isn't great at high engine speeds but 4500rpm?
Post #973491 5th Dec 2022 4:24pm
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Ohlins



Member Since: 20 Oct 2009
Location: French Pyrénées
Posts: 28
France 
Indeed, though I must say I don't find it lacking in the low box and in high it cruises along just nicely. As you say these old pushrod two valve engines shouldn't work too hard...having said that my previous work V8's never died no matter how badly we treated them!!!

This is my first Defender V8/LPG with the engine installed as is when I bought it so I'm keen to learn about it over this winter.

All the best


. Army 110 3 Door 200tdi
Army 110 3 Door V8
Army Lightweight 2.25 Petrol
110 300tdi 5 door
Yamaha XT660Z Ténéré
Gas Gas 300EC Ohlins
Post #973772 7th Dec 2022 9:23am
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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
Thanks - all useful info

The engine is still waiting assembly as the house renovation came first Very Happy 90 V8 CSW - 1988
Post #978828 19th Jan 2023 2:10pm
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Ranger 6



Member Since: 17 Jan 2019
Location: Yorkshireman trapped in a Surrey postcode
Posts: 202
United Kingdom 1988 Defender 90 V8 Petrol CSW Rimini Red
Took a long look at lift and duration of the various 'high torque' cams and decided on a standard one. The lift was only a fraction down, but the duration was better than most.

Engine is in the process of being fitted, so time will tell as to whether I'm happy with it. 90 V8 CSW - 1988
Post #1036454 4th Jun 2024 10:09am
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