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Old 12 December 2008, 06:49   #11
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I always liked K&N filters since it made my old mini faster.
However, I'm starting to read a number of reports that say they are pretty poor at filtering.
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Old 12 December 2008, 06:55   #12
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every car I've put a k&n filter , bmw carb'd 318,320i, calibra 2.0 8v, VW golf 1.3, ruined the idling and ran like shite in hot weather sure it made an okay inducation noise but id say more like all noise and no go, id say maybe you get 2/3bhp max, even if u route a cold air feed through the bumper or wing, hardly a noticeable gain, remove the restrictive cats first and get a nice freeflowing exhaust is the most cheapest and effective way initally, car modding will always bleed you dry and you'll never get your money back - leave the chavvy air filers to the idiot saxo muppetts in mcdonalds car park

this is all i my opinion though, im sure if its correctly setup by an expert on a RR along with everything else, ignition timing, but thats expensive
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Old 12 December 2008, 07:12   #13
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Have to disagree there mate. I put two K&N cones on a Rover V8 lump and had it krypton tuned as well. It became allot more responsive under my big toe.
I then went onto mod'ing other bits but for the pennies to power the K&N's did a grand job.
I turned an old rover V8 out of a landrover (one of the weakest BHP V8's ever made) and turned it into a performer.
I then pulled it out of the motor it was in with plans to build a lotus 7 replica but ran out of cash and sold it
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Old 12 December 2008, 13:04   #14
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Chips DO work well on modern engines - especially turbo diesels. Often these days that's all the manufacturers do anyway to differentiate models!!!
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Old 12 December 2008, 13:06   #15
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Have to disagree there mate. I put two K&N cones on a Rover V8 lump and had it krypton tuned as well. It became allot more responsive under my big toe.
I then went onto mod'ing other bits but for the pennies to power the K&N's did a grand job.
I turned an old rover V8 out of a landrover (one of the weakest BHP V8's ever made) and turned it into a performer.
I then pulled it out of the motor it was in with plans to build a lotus 7 replica but ran out of cash and sold it
They restricted the BHP to allow it to run on any old shit petrol all over the World. A quick fiddle will easily see from 135 up to 155bhp and it doesn't take much to see 200hp. My V8 in my 110 is probably about 300hp now - just need to put it all back together!!!
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Old 12 December 2008, 13:24   #16
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Not.
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Old 12 December 2008, 13:26   #17
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My V8's at least 370bhp!
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Old 12 December 2008, 13:34   #18
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Not.
Not what???
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Old 12 December 2008, 14:00   #19
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They restricted the BHP to allow it to run on any old shit petrol all over the World. A quick fiddle will easily see from 135 up to 155bhp and it doesn't take much to see 200hp. My V8 in my 110 is probably about 300hp now - just need to put it all back together!!!
I was miss informed at the time then
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Old 12 December 2008, 14:23   #20
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I was miss informed at the time then
I would say so - the V8 is pretty much the same in the Defender(90/110) as it was in the Range Rover. Naturally aspirated of course - some of them had restrictors in the carbs/inlet manifold. These were very easy to remove and took the power up I think from about 114 to 135bhp - then a bit of fiddling would get 155bhp which was normal power in the SD1.

These 3.5 engines were good for up to about 250hp as proved by TVR. To get more power you need a cross bolted block which came in quite late - they incresed to 3.9 litres and beyond. The biggest is 5.2L but I have settled for a 4.6.
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