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Re: ARP4 - First impressions. [Re: PaulJ] #605863
01/12/19 08:07 PM
01/12/19 08:07 PM
Joined: Sep 2011
Posts: 13,450
Mandello del Lario
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Posts: 13,450
Mandello del Lario
Originally Posted by PaulJ
............................
As far as performance is concerned, I complained about a lack of torque, this has improved marginally as the miles increase, but frankly is still a little disappointing. I am very tempted by Griffos turbo conversion, but if I go down that route I will probably destroy any residual value in having a rather special limited edition model, as half of the the 'specialness' is the Cosworth engine.

If rather than a complex turbo conversion you want more torque from a simpler conversion you could always consider that 2.5 litre Omex engine that I keep mentioning.


Peter

[Linked Image]
Re: ARP4 - First impressions. [Re: PaulJ] #605897
02/12/19 08:01 AM
02/12/19 08:01 AM
Joined: Mar 2013
Posts: 358
Cotswolds
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P

Joined: Mar 2013
Posts: 358
Cotswolds
Ref the suspension on Paul J's lovely ARP4, although Paul is keeping this quiet, as we asked him to when we did the work - early in Paul's ownership SSL fitted a shorter stiffer and progressive rebound spring at the front to remove the stiffening effect of a compressed rebound spring at static ride height to thus improve the front ride and grip, then later SSL provided Paul with a progressive spring stack at the rear (from the SSL 5L) to give a better ride yet still be able to carry increased load when required.
More recently SSL have provided similar suspension improvements to more ARP4s and 3.7 Roadsters with the factory five link to improve their ride and handling.
Cheers Peter. (declaring as a SSL director).


Buckland B3 Mk2 (Development of F Type Morgan)
Re: ARP4 - First impressions. [Re: PaulJ] #605930
02/12/19 12:15 PM
02/12/19 12:15 PM
Joined: Apr 2018
Posts: 48
Norwich
J
JonnyF Offline
Just Getting Started
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Just Getting Started
J

Joined: Apr 2018
Posts: 48
Norwich
I bought an ARP4 earlier this year. There were a few issues with it, it took an age to get sorted but finally did. Mine is the Prosecco car that Krazy Horse had this year.

I've come from a Krazy Horse Stage 3 tuned 3 wheeler which again wasn't totally reliable but when it was working it was so much fun!

I always said I'd only sell the 3 wheeler to get an ARP4, now I'm lucky enough to have one I love it. Can't wait to track it next year!

Was your car at Dunston Hall for Victory Mog this year?


2018 Morgan 3 Wheeler - Krazy Horse Stage 3 100bhp 110ft lb - Sold

Morgan ARP4
Re: ARP4 - First impressions. [Re: PaulJ] #605980
02/12/19 06:44 PM
02/12/19 06:44 PM
Joined: Aug 2015
Posts: 307
West Dorset
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West Dorset
As one of those who traded their ARP4 in after a short, in my case very short ( 3 weeks ) ownership, it is interesting and refreshing to hear that Paul is still, overall, a keen advocate of the car and enjoying the experience.
My expectations were not met by the ARP4 and I do not regret trading it in for a new Roadster, which I particularly love for it’s low down torque, reminiscent of my LM62 Plus 8.
Given that the ARP4s are now, in most cases, over 3 years old I would be interested to hear how owners have got on with their MOTs. I was somewhat concerned in 2016 about the emissions test, looking forward, and wonder whether there have been any issues in this regard.
My parting impression when handing back the keys to my ARP4 in 2016 was that it was very much a track car dressed up as a Tourer.
On my last few drives in the car I had to wear my biking ear plugs to mute the excessive noise. The fact that I couldn’t hear my wife was a side effect which some might think advantageous!
I loved ( and still do love ) the look of the car and just wish it had been closer to my expectations.
Happy days!


3.7 Roadster
Porsche 964 C2
JCW Mini Cooper S Cab
BMW 1200 GS
+4 4 1995-2002 / LM 62 +8 2002-07
Re: ARP4 - First impressions. [Re: PaulJ] #605982
02/12/19 07:14 PM
02/12/19 07:14 PM
Joined: Mar 2013
Posts: 358
Cotswolds
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Cotswolds
Indeed the impression that the ARP4 was a track car dressed as a tourer was very common. It was a shame as there must have been potential owners out there looking for a tourer with great ride and a torquey 2.0 motor and also those who wanted a stiff track day car and a motor that loved revs.. I guess after a few returns, exchanges, trade ins etc - owners ended up getting the Morgan that suited them. It does seem to me though that the new +6 is clear in what it is, which is great news. Cheers Peter (SSL).


Buckland B3 Mk2 (Development of F Type Morgan)
Re: ARP4 - First impressions. [Re: PaulJ] #606032
03/12/19 09:31 AM
03/12/19 09:31 AM
Joined: Sep 2014
Posts: 2,106
YORK
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YORK
Reference PJBs comment...Morgan have already produced such such a car in the shape of the +4 Supersports of 2011/2012 vintage,

I drove and immediately rejected the ARP4 as a track car masquerading as a road car...gutless in mid range as outlined by most drivers and it was continually shouting at me to drive faster into the upper rev range to get a move on !!!!.

Also couldn't live with the sub 20 mpg as a Yorkshire man !!!

Yes it had good looks and the Cosworth badge but did not meet many peoples hopes and expectations.

I know of at least one other owner who from the start regretted selling his P4SS for the ARP4...and soon swapped it for a Roadster.

200 bhp,linear torque and rapid acceleration with 34 mpg in the shape of the P4SS gives me the Morgan Thrill..and it can be tame enough just to cruise happily at low speeds when required.

The best 4 cylinder Morgan in my opinion

Isn't it good that we all have different tastes and motoring needs !!!


" I LOVE THE SOUND OF THROTTLE BODIES IN THE MORNING " (ROBERT DUVAL IN "APOCOLYPSE NOW " )
Re: ARP4 - First impressions. [Re: PaulJ] #606044
03/12/19 11:09 AM
03/12/19 11:09 AM
Joined: Apr 2018
Posts: 48
Norwich
J
JonnyF Offline
Just Getting Started
JonnyF  Offline
Just Getting Started
J

Joined: Apr 2018
Posts: 48
Norwich
It's interesting to hear people's views on the car, I guess I knew as the 3rd owner of the car exactly what it was. I love nothing more than getting the rev's up in the 6-8k rpm range, it sounds amazing. Then getting the pops and bangs on the way down. To hear it was sold as a tourer is a bit of a stretch but for me that worked out perfectly.

I drove a Supersport and I preferred the ARP4, it's a great car but for me the ARP4 was more enjoyable.

PJB have you changed your exhaust from the original design?


2018 Morgan 3 Wheeler - Krazy Horse Stage 3 100bhp 110ft lb - Sold

Morgan ARP4
Re: ARP4 - First impressions. [Re: PaulJ] #606048
03/12/19 11:57 AM
03/12/19 11:57 AM
Joined: Mar 2013
Posts: 358
Cotswolds
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PJB Offline
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P

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Cotswolds
No we just changed the front suspension to get the rebound spring out of play at ride height to reduce the initial wheel rate to increase compliance, then supplied the twin spring stack for the rear out of the SSL 5L to give better ride. Both helped ride and handling by providing better grip over poor degraded surfaces.
I will leave exhausts up to others, though I was once Chief Eng of a German OEM exhaust company - but that was in the 1990's
Cheers Peter aka PJB (SSL)


Buckland B3 Mk2 (Development of F Type Morgan)
Re: ARP4 - First impressions. [Re: PaulJ] #606054
03/12/19 01:00 PM
03/12/19 01:00 PM
Joined: Apr 2018
Posts: 48
Norwich
J
JonnyF Offline
Just Getting Started
JonnyF  Offline
Just Getting Started
J

Joined: Apr 2018
Posts: 48
Norwich
Ah ok, I will look into upgrades once I have spent some proper time with the car.


2018 Morgan 3 Wheeler - Krazy Horse Stage 3 100bhp 110ft lb - Sold

Morgan ARP4
Re: ARP4 - First impressions. [Re: PaulJ] #606120
03/12/19 06:14 PM
03/12/19 06:14 PM
Joined: Dec 2011
Posts: 237
tervuren belgium
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tervuren belgium
23000 km in my arp4 and still very happy.I will go to Belgian MOT in april 2020.I have tried an quieter exhaust but lost to much power ...

In Spa Francorchamps they ask a roll bar to go on the circuit so in never experienced a track day .

Last month i had a front suspension strengthening bar broken .

i might be interested in a plus4 on the cx chassis .The plus 6 is to expensive for me.

Last edited by thierry242; 03/12/19 06:16 PM.
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