 | Home > V8 > 3.9 on SUs - which cam? |
 
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| MercianRover Member Since: 07 Apr 2022 Location: Culworth Posts: 141   
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I ran the same setup and used the standard camshaft and BDR profile needles.
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11th Apr 2022 1:53pm |
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| Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 197 
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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 |
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29th Apr 2022 11:46am |
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| MercianRover Member Since: 07 Apr 2022 Location: Culworth Posts: 141
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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. |
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29th Apr 2022 2:28pm |
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| Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 197
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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 |
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24th May 2022 3:02pm |
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| Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 197
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Leaning towards this one: https://www.v8tuning.co.uk/custom-ground-camshafts 90 V8 CSW - 1988
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31st May 2022 2:01pm |
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| MercianRover Member Since: 07 Apr 2022 Location: Culworth Posts: 141
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No more faffing around with points gap and suffering the results of vaiable condensor quality, just a consistent spark under all conditions. |
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9th Jun 2022 1:09pm |
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| Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 197
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Thanks - I'll have a look at that when the engine gets built 90 V8 CSW - 1988
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15th Jun 2022 4:22pm |
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| Ohlins Member Since: 20 Oct 2009 Location: French Pyrénées Posts: 28 
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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 |
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5th Dec 2022 4:11pm |
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| MercianRover Member Since: 07 Apr 2022 Location: Culworth Posts: 141
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Red line is pretty low on that Crower cam, admittedly the Rover V8 isn't great at high engine speeds but 4500rpm?
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5th Dec 2022 4:24pm |
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| Ohlins Member Since: 20 Oct 2009 Location: French Pyrénées Posts: 28
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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 |
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7th Dec 2022 9:23am |
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| Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 197
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Thanks - all useful info
The engine is still waiting assembly as the house renovation came first  90 V8 CSW - 1988 |
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19th Jan 2023 2:10pm |
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| Ranger 6 Member Since: 17 Jan 2019 Location: Yorkshireman trapped in a Surrey postcode Posts: 197
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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 |
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4th Jun 2024 10:09am |
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