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by ChrisJC
Sun Jul 05, 2020 9:58 am
Forum: Cooling Area
Topic: electric water pump
Replies: 3
Views: 11

Re: electric water pump

garrycol wrote:
Sun Jul 05, 2020 9:23 am
Chris - on a side - what ECU are you running on that engine??
Bosch Motronic, standard ECU for that engine, but tweaked by Mark Adams to be 'standalone', i.e. get rid of all (or at least, most) of the dependencies on the rest-of-vehicle electronics.

Chris.
by ChrisJC
Sun Jul 05, 2020 9:17 am
Forum: Cooling Area
Topic: electric water pump
Replies: 3
Views: 11

Re: electric water pump

I think I would rewind a bit and ask the silly questions! 1. Do electric pumps flow more than conventional pumps? If so, how much more? 2. Under normal conditions, the cooling shouldn't be marginal - it ought to have bags of spare capacity for those hot days / mountain climbs / towing caravans etc. ...
by ChrisJC
Sat Jul 04, 2020 4:33 pm
Forum: Engines Area
Topic: Engine number ,
Replies: 1
Views: 39

Re: Engine number ,

This seems to be the only reference I can find...

https://www.lrukforums.com/threads/rover-v8-3-5.231776/

Chris.
by ChrisJC
Tue Jun 30, 2020 3:17 pm
Forum: Your Cars
Topic: A pair of classic P6 Rovers
Replies: 18
Views: 11674

Re: A pair of classic P6 Rovers

That could be described as a bit annoying!

Who built it?

Chris.
by ChrisJC
Sun Jun 28, 2020 2:05 pm
Forum: Engines Area
Topic: Rover V8 starter motors
Replies: 5
Views: 95

Re: Rover V8 starter motors

The Range Rover P38 style ones (which have an epicyclic reduction gear in there) are superb. They spin the engine over at tremendous speed.

But like all starters, if you have bad connections anywhere, including engine earth, then even a good starter will struggle to spin the engine over.

Chris.
by ChrisJC
Tue Jun 23, 2020 8:33 pm
Forum: Engines Area
Topic: Range Rover 17D - detuned?
Replies: 3
Views: 86

Re: Range Rover 17D - detuned?

I think that is about the max for a carb Rangie engine. The EFi version of the same was 165BHP.

One has to assume it's a combination of cam, exhaust, ignition timing.
The EFi version had twin outlet manifolds which must have helped over the single outlet manifolds used on the carb engines.

Chris.
by ChrisJC
Sun Jun 21, 2020 7:45 pm
Forum: Engines Area
Topic: Range Rover 17D - detuned?
Replies: 3
Views: 86

Re: Range Rover 17D - detuned?

There is a fourth factor!, compression ratio. This is set by the pistons, but should be stamped on the block above the engine number.

Chris.
by ChrisJC
Fri Jun 19, 2020 12:38 pm
Forum: Drivetrain & Transmission Area
Topic: Do I have a problem?
Replies: 12
Views: 319

Re: Do I have a problem?

Does anything get hot, like a single wheel? If the car is dragging somewhere, (assuming that the power is there), then something ought to be getting hot.

Chris.
by ChrisJC
Fri Jun 12, 2020 9:28 pm
Forum: Please Tell Us About Yourself
Topic: Hello all
Replies: 4
Views: 156

Re: Hello all

Yep, interested. Not seen one of these done before!

Chris.
by ChrisJC
Fri Jun 12, 2020 8:08 pm
Forum: Please Tell Us About Yourself
Topic: I'm new - so hiya
Replies: 15
Views: 213

Re: I'm new - so hiya

The LT77 is the easiest one. The R380 is better, but finding a 2WD fitment will be more tricky.

You might find their relative scarcity makes them quite expensive these days.

Chris.
by ChrisJC
Fri Jun 12, 2020 5:36 am
Forum: Please Tell Us About Yourself
Topic: I'm new - so hiya
Replies: 15
Views: 213

Re: I'm new - so hiya

I think that 'weakness' in the design mentioned on wikipedia was only a problem in the Californian MOT test where they had to run the engine for an extended period at high speed. A quick rev is absolutely fine.

I also think it was fixed anyway.

Chris.
by ChrisJC
Thu Jun 11, 2020 5:04 pm
Forum: Please Tell Us About Yourself
Topic: I'm new - so hiya
Replies: 15
Views: 213

Re: I'm new - so hiya

https://en.wikipedia.org/wiki/ZF_4HP22_transmission Plenty to choose from!! Note that depending on application, the valving etc. will be different, so you want one with an engine closest to the RV8. For example, if you got one that upshifted at 7000rpm at full throttle, it would never upshift with t...
by ChrisJC
Wed Jun 10, 2020 4:14 pm
Forum: Please Tell Us About Yourself
Topic: I'm new - so hiya
Replies: 15
Views: 213

Re: I'm new - so hiya

Thing to remember is that most (if not all) 3 speed autoboxes have a 1:1 top gear. You need a very 'tall' geared back axle for that, otherwise you'll be revving the tits off it at 70mph. The ZF is 4 speed and 4th is an overdrive - about 0.7:1, so similar to 5th in a manual transmission. Not sure abo...
by ChrisJC
Wed Jun 10, 2020 11:47 am
Forum: Please Tell Us About Yourself
Topic: I'm new - so hiya
Replies: 15
Views: 213

Re: I'm new - so hiya

What engine is fitted at the moment? There are a few autobox options - by far the best one (in my opinion!) is the ZF4HP22 4-speed auto. Get a fully mechanical one (i.e. no electronics), and you are away. The snag is that the only V8 and 2-wheel-drive version was for the Sherpa Van, and they are ver...

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