Vehicle & Technical > Range Rover
thinking of getting a RRC
dave362:
--- Quote from: "sebw36912" ---I remember reading somewhere about a company (can't remember its name) that refurbishes and possibly makes new engine blocks.
Do you, or anyone reading this, possibly know what I'm on about. And would it be cost affective to do that in order to get the lost power back in the engine?
--- End quote ---
The easiest power improvement is to fit a 3.9 cam shaft, tappets and timing gear. The lobes wear at around 80k miles. There are loads of companies that will rebuild engine...... at a cost
SebastianW:
how does a 3.9 cam shaft improve power?
and what are lobes? :?:
I know, I really am a newbie! lol :lol:
hairyasswelder:
--- Quote from: "sebw36912" ---how does a 3.9 cam shaft improve power?
and what are lobes? :?:
I know, I really am a newbie! lol :lol:
--- End quote ---
Yes, any new parts improve the engine to restore power but will give slightly bigger improvement to 3.5 performance, the lobes are the part of the cam that pushes the valves to open them, different profiles of the cam produce different power results as the valves can open longer or earlier/later to improve combustion 8) . All at a cost paid for in more fuel :cry:
3.5 efi 165 bhp 206 ft/lb torque @ 3,200 rpm
3.9 efi '89-92 188 bhp 235 ft/lb @2,600 rpm
3.9 efi '92 -95 181 bhp 231 ft/lb@ 3100 rpm
VM 2.5 '89-92 112 bhp 183 @2400
200 tdi '92-95 111 bhp 195 @ 1800
Earlier carb(petrol) models produce less power, between 125 to 135 bhp and generally have a lower compression engine
Try a search for performance cams and you will get baffled by the tech info, I did :? but you might learn more :wink:
Steve
dave362:
Try here for a wealth of info :
http://auto.howstuffworks.com/camshaft.htm
and here:
http://auto.howstuffworks.com/engine1.htm
SebastianW:
ok, thanks for all the info.
there's just one more thing I want to know (then I'll stop with all the questions! :lol: ), and that is, what sort of mpg do you get with the 3.5/3.9 and 200tdi? oh, and what does VM stand for? :?
thanks,
seb
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