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Re: Opinion of what she is worth

Posted: 14 Dec 2017 17:07
by Clem
Mystical_Beast wrote: 13 Dec 2017 07:49Cruise 175 uphill down-hill? This I want to see. :lol: My experience is that attempting to maintain those types of speeds The Patrol will keep kicking back into 4th, she cannot keep that up in 5th simply as there is not enough power to do so.
Hm. Well, maybe you should come by sometime and see for yourself.

Re: Opinion of what she is worth

Posted: 14 Dec 2017 17:08
by Clem
biggles wrote: 14 Dec 2017 11:44I have the cleaning kit for the filter and cone filters if properly cared for are as good as if not better than paper filters.
I can only say that I speak from experience. It turned one engine into a low compression version for me. Never again. Period.

Re: Opinion of what she is worth

Posted: 14 Dec 2017 18:47
by David M
Clem wrote: 14 Dec 2017 17:08
biggles wrote: 14 Dec 2017 11:44I have the cleaning kit for the filter and cone filters if properly cared for are as good as if not better than paper filters.
I can only say that I speak from experience. It turned one engine into a low compression version for me. Never again. Period.
I agree 100% from experience. The filter on the RGM conversion on The Firetruck has and is about to cost me in excess of R 50 k after it worked loose and sent gravel through the turbo, intercooler and motor....

Re: Opinion of what she is worth

Posted: 14 Dec 2017 19:00
by Mystical_Beast
David, if I may ask

Did you have the conversion done, or did you buy the vehicle with their conversion?f
I think one needs to be reasonable and not ascribe to malice that which is neglect.

If I fail to notice my radiator leaking water and lose the engine as a result, would it be rational to blame the service center I last used?

And then, my next question would be, who did the maintenance and services on the vehicle subsequent to the conversion?

If it was RGM I believe you have a valid gripe, if not I dont believe you can justifiably ascribe to them, something they haven't seen for years.

I own a few vehicles and they service and maintain most of them.

In my experience they are completely thorough.

And I believe, without the relevant facts at my disposal, that had they serviced your vehicle, this issue would have been picked up way before any damage occurred.

That they did a conversion, that someone else has seen fit to maintain, that is your port of call, Not RGM.

Re: Opinion of what she is worth

Posted: 14 Dec 2017 19:00
by iandvl
David M wrote: 14 Dec 2017 18:47 I agree 100% from experience. The filter on the RGM conversion on The Firetruck has and is about to cost me in excess of R 50 k after it worked loose and sent gravel through the turbo, intercooler and motor....
Geez, David. I had no idea this happened. Good luck. Let me know if I can help in any way....

Re: Opinion of what she is worth

Posted: 14 Dec 2017 19:18
by Mystical_Beast
I concur completely with what Biggels has said..
The argument around Turbo’s having come a long way is entirely academic when you don’t have the OE management Systems to go with it.
In bolt on format, and chip tuning to control everything, I don’t believe you will get the same usable reliable spread of power from a Turbo unit.
But this is based on my personal experience with both and a laymans understanding of how power is delivered.
Through fueling/timing you can to some degree eliminate most of the Turbo lag, but tuning set-up is arduous and consistency of performance lacking with after-market Turbo fitment.
To get an aftermarket twin turbo fitment working like a modern car is going to end up costing more than a Super-charger and the probabilities for stuff going wrong exponential.
Were I offered both options, with all the after-market back-up and warranties available, on this particular vehicle I would go Super-charged hands down every time.

Re: Opinion of what she is worth

Posted: 14 Dec 2017 19:23
by Mystical_Beast
Tinus lotz wrote: 14 Dec 2017 12:56 Frans is just finished a 4.8 with 0.4bar turbo ...makes 260kw and 700 odd newtons power from very low down ....lets see what the curves look like
Would love to see the graphs.

If its good at the bottom there will be no top and visa versa.

The graphs will prove me right or wrong.

Figures are very similar to Super charged route although the SC runs 0.3 boost.

Re: Opinion of what she is worth

Posted: 15 Dec 2017 06:56
by Tinus lotz
Will get it and post it here
Iam not saying the supercharger is bad ...not at all iam saying a turbo bolt on is like 70k fitted and also works good
But lets see the dino sheets and then have a look

Re: Opinion of what she is worth

Posted: 15 Dec 2017 07:37
by graham1
Clem wrote: 13 Dec 2017 05:26 FWIW, my standard 4.8 will happily cruise all day at 175km/h but it makes no sense as its simply not safe.
Mine must be a little tired then. There is no ways I will ever be able to see that kind of speed with mine, let alone happily cruise at that speed.
Mine is unhappy even cruising at 140!

Man, it sounds like a supercharged 4.8 would be my ultimate, dream patrol to own. It sounds absolutely fantastic! Congratulations. Im going to start to save up now. :biggrin:

Re: Opinion of what she is worth

Posted: 15 Dec 2017 09:01
by hugejp
Clem wrote: 13 Dec 2017 05:26 FWIW, my standard 4.8 will happily cruise all day at 175km/h but it makes no sense as its simply not safe.
My 4.8 is a 2004 with 260k on the clock, suspension lift, 33" tyres, roofrack, replacement bumper, drawer system etc. etc.

So I recon all of this plays its roll in my top end figure...

My highest recorded gps top speed on a long straight slightly downhill rd in the Northern Cape was 192km/h

I normally cruise between 120 - 140 (110 with the wife inthe car)