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Search: Posts Made By: Cliff Pountney
Forum: Rover Builds 07-12-2017, 12:37 PM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
I just took a look at the link to the space frame...

I just took a look at the link to the space frame vehicle. Flame me if you want but I'll nail my colours to the mast and say I don't like it.
The concept is great but like many of these space frame...
Forum: Rover Builds 07-12-2017, 12:15 PM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
Andy, I also feel for you. It looks a great...

Andy,
I also feel for you. It looks a great deal worse that would be expected from the first pictures you showed.
It's difficult to make an objective choice when you have time and money invested....
Forum: Rover Builds 04-12-2017, 01:38 PM
Replies: 234
Views: 20,212
Posted By Cliff Pountney
Does the exhaust wrap stuff work well? I've...

Does the exhaust wrap stuff work well? I've always reused old three layer shields and just cut bashed and riveted them into shape.
Cliff
Forum: Rover Builds 28-11-2017, 01:38 PM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
My expert's opinion agrees with Stavtech - ...

My expert's opinion agrees with Stavtech -

Cliff,
this is a contentious discussion point.
The shrewd will argue that accelerating that much air will indeed slow the response as you have to...
Forum: Rover Builds 28-11-2017, 12:56 PM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
Andy, Not exactly a technical article BUT...

Andy,

Not exactly a technical article BUT his basic point looks to be sound.

A 1.8 engine running at 6000rpm will have an airflow rate of about 90 liters / sec (making the simplification that...
Forum: Rover Builds 27-11-2017, 01:02 PM
Replies: 234
Views: 20,212
Posted By Cliff Pountney
Looking good. Generally bottle levels do go...

Looking good.

Generally bottle levels do go up and down with engine speed but not by more than 15mm or so. How have you plumbed it in?

You may need to add a restriction to the small hose to...
Forum: Rover Builds 27-11-2017, 12:45 PM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
Andy, Interested to see how you get on with...

Andy,

Interested to see how you get on with the ACAC (intercooler) installation.

I have never heard that too big an ACAC could reduce power. The two main 'hits' for power are pressure drop and...
Forum: Rover Builds 24-11-2017, 12:24 PM
Replies: 234
Views: 20,212
Posted By Cliff Pountney
Yes. But do it well and you only have to do it...

Yes. But do it well and you only have to do it once.
Forum: Rover Chat 09-11-2017, 12:47 PM
Replies: 30
Views: 1,993
Posted By Cliff Pountney
The problem always comes back to money...

The problem always comes back to money particularly in the small car segments. Some manufacturers are using electric water pumps to replace the mechanical ones particularly on hybrid vehicles. As you...
Forum: Rover Chat 06-11-2017, 12:56 PM
Replies: 30
Views: 1,993
Posted By Cliff Pountney
Niannorth, Sorry I'm not sure I understand your...

Niannorth,
Sorry I'm not sure I understand your question.
The flow rate is governed by the pump and the circuit restriction. Adding more coolant volume in the flowed circuit will increase the mass...
Forum: Rover Builds 13-10-2017, 11:56 AM
Replies: 169
Views: 13,910
Posted By Cliff Pountney
I think it distorted when welding. I was dropping...

I think it distorted when welding. I was dropping the top surfaced of the frame where the lower wish bone bolts as I needed to make room for the gearbox to move to the left. All the work was on one...
Forum: Rover Builds 11-10-2017, 11:56 AM
Replies: 169
Views: 13,910
Posted By Cliff Pountney
I did something similar on my MGF sub frame. I...

I did something similar on my MGF sub frame. I was shortening the frame (not a Mini conversion) and needed to modify the left hand side suspension tower and the left hand side rail to get clearance...
Forum: Rover Builds 25-09-2017, 11:15 AM
Replies: 148
Views: 10,338
Posted By Cliff Pountney
I had a similar problem on a Landrover with an...

I had a similar problem on a Landrover with an alternator conversion. The charge warning light forms part of the field circuit and if that circuit is not complete there will be no field current and...
Forum: Rover Builds 27-06-2017, 11:23 AM
Replies: 2,503
Views: 209,493
Posted By Cliff Pountney
So what's the magic number that would liberate it...

So what's the magic number that would liberate it from you...
Forum: Rover Builds 06-06-2017, 11:45 AM
Replies: 397
Views: 49,271
Posted By Cliff Pountney
Ball valves are usually used to prevent the...

Ball valves are usually used to prevent the coolant flowing the wrong way under certain conditions. If the pipe enters the bottle blow the coolant level this is no big deal as coolant will be drawn...
Forum: Rover Builds 06-06-2017, 11:35 AM
Replies: 595
Views: 76,151
Posted By Cliff Pountney
Sounds good. Might be an idea to check the...

Sounds good.

Might be an idea to check the flow rate. The main thing to check for is that the coolant flow through the bottle is not so high that air is being sucked down the exit port. If the...
Forum: Rover Builds 05-06-2017, 12:05 PM
Replies: 397
Views: 49,271
Posted By Cliff Pountney
I hope it works out for you but looking at this...

I hope it works out for you but looking at this as a cooling engineer I have to say there are a lot of things working against you here. That's not to say it won't work just that you might be able to...
Forum: Rover Builds 19-05-2017, 11:27 AM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
Andrew, Stripping the unused circuits out of...

Andrew,

Stripping the unused circuits out of the MGF loom may seem like a ball ache but it's worth it. This is a picture of what I removed, saving 3.5kg.

Cliff
...
Forum: Rover Builds 15-05-2017, 02:35 PM
Replies: 131
Views: 6,531
Posted By Cliff Pountney
Andrew, Glad to see you now have a car with the...

Andrew,
Glad to see you now have a car with the engine in the proper place. I.E. in front of the rear axle but behind the driver, like my K series Imp. Now you just need to change it for one with a...
Forum: Rover Builds 25-04-2017, 11:48 AM
Replies: 595
Views: 76,151
Posted By Cliff Pountney
Andy, There's a couple of things you could try...

Andy,
There's a couple of things you could try before condemning the head gasket.
1) Pressure test the system with an airline to see what pressure the cap is really lifting at. Sometimes even if...
Forum: Rover Chat 14-03-2017, 06:38 PM
Replies: 6
Views: 751
Posted By Cliff Pountney
Thanks for the welcome. This forum is a...

Thanks for the welcome.

This forum is a wealth of knowledge on the Rover K series. So although my car was a competitor to the Mini I get a great deal from reading your threads. Maybe I have a try...
Forum: Rover Chat 10-03-2017, 11:23 AM
Replies: 6
Views: 751
Posted By Cliff Pountney
Cut and shut drive shafts AKA "...but I did it my way."

There's loads of stuff on the web about how to cut and shut drive shafts. Some methods look good others look, well, less good. There's also plenty of companies out there who will take on the job...
Forum: Rover Builds 09-03-2017, 11:41 AM
Replies: 148
Views: 10,338
Posted By Cliff Pountney
I wouldn't just return the hose to the engine as...

I wouldn't just return the hose to the engine as without the restriction of the heater matrix it will steal some of the radiator flow (when the thermostat is open the heater is effectively in...
Forum: Rover Chat 08-02-2017, 01:09 PM
Replies: 30
Views: 1,993
Posted By Cliff Pountney
If for the same flow rates a decrease in specific...

If for the same flow rates a decrease in specific heat capacity of about 5% would give a 4degC rise assuming you had been running at about 100degC to being with on a 20degC day. That sounds...
Forum: Rover Chat 08-02-2017, 10:07 AM
Replies: 30
Views: 1,993
Posted By Cliff Pountney
Gents, I've worked in cooling system design for...

Gents,
I've worked in cooling system design for Ford for a long time. We've looked at alternative cooling fluids for all sorts of products from high performance to trucks to budget cars and our...
Showing results 1 to 25 of 31

 
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