Author Topic: 172 571  (Read 15080 times)

Offline Acco 4x4

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Re: 172 571
« Reply #30 on: July 24, 2015, 10:28:32 PM »
A single barrel stromberg will for ever be a reliable simple carbie bet will never return any kind of good economy. The 2 barrel webber as mentioned from the fords are a good carbie which can also improve power and economy. The main problem is they are still restricted by the manifold and although low and mid engine speeds will work well, you will get to a point where the carbie will want more air flow than it can get and the efficiency will go south. You will find that around 3/4 throttle where it really opens up, the air speed/volume won't be ideal for the carbie. This will of course most likely not be noticed when driving but you will be probably be running very rich and basically blow $$$$$$$ out the exhaust. The other problem is that there isn't a real lot of after market running bits for the ford type webber. On the other hand, although suffering the same basic problems as the webber, a 350 holley has an extensive range of tuning bits available. I have had some great success with a 350 holley on a holden 202, this is obviously a lot smaller and good inlet manifolds available but otherwise basically the same. The 350 is way tooooooooo big in standard form for a little holden 202 but with the accessories available it was modified and very successful with good dyno results to show. One of the biggest mods was the fitting of annular boosters into both throats to increase air speed and provide better atomisation. The same principle would be good with the 282 as they don't rev that much, good vacuum at low speed = efficiency = power. I personally believe that a carbie controlled by vacuum would be best overall as it will only give what the engine can use. Now although not exactly ideal as far as running extras go, a 2 barrel "varijet" of a VH commodore has a small primary throat and a BIG secondary controlled by vacuum so you have the small primary for good vacuum for low speed and economy and a vacuum controlled secondary for the big hills. They have a multitude of adjustments so are a good carbie if you know your way around it but overall can be a nightmare. I have been toying with the idea of possibly using an "SU" or similar. An SU is a full vacuum controlled carbie which once again will only give what is needed resulting in good power and good economy. The idea is replacing the pipe from the air cleaner to the original carbie with a new intake pipe, carb, 90 degree elbow and flange onto the original carb mount on the manifold. With a long runner, vacuum should be good at low speeds and engine torque should pick up. One other thing to consider would be for anyone wanting to still do some off road work may run into flooding problems on angles with some carbies.

Offline B 52

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Re: 172 571
« Reply #31 on: September 16, 2018, 07:40:34 PM »
Still running well
« Last Edit: March 12, 2019, 05:58:29 PM by B 52 »
REMLR 092 Mk 4 Inter 172-571 S2A Survey Topographical  112-833 S2A GS 114-352 S2A GS 172-456 S3 FFR 30-857 S3 FFR 31-011 Perentie FFR 48-964 RFSV 51 678, No 5 trailers 101-025,154-267, 154-640

Offline B 52

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Re: 172 571
« Reply #32 on: March 12, 2019, 06:07:17 PM »
aA recent pic 172 571 is about to hit the workshop for a makeover
« Last Edit: March 12, 2019, 06:50:57 PM by B 52 »
REMLR 092 Mk 4 Inter 172-571 S2A Survey Topographical  112-833 S2A GS 114-352 S2A GS 172-456 S3 FFR 30-857 S3 FFR 31-011 Perentie FFR 48-964 RFSV 51 678, No 5 trailers 101-025,154-267, 154-640

Offline Ravvin

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Re: 172 571
« Reply #33 on: March 13, 2019, 12:43:22 PM »
Looks to be in great condition.
Apart from the slight scuffs on the front bumper end and the minor oil leaks on the front diff bung and drivers side front wheel, it could almost be mistaken for an in-service pic.
What work do you plan to do on it?

Greg.

Offline GGG

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Re: 172 571
« Reply #34 on: March 13, 2019, 07:59:50 PM »
Greg, I would have to disagree. It could well be an in service pic even with those minor blemishes you mentioned. It looks pretty tidy to me. I just looked at an old pic of a Mk 3 that was on my name for a while. No scuffs but a couple of minor oil leaks
Geoff O.


Offline B 52

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Re: 172 571
« Reply #35 on: March 14, 2019, 10:18:46 AM »
It is in good nick, still only 4611 miles on it. I've had it for about 10 years with the intention of restoring it. Time is always the enemy.
REMLR 092 Mk 4 Inter 172-571 S2A Survey Topographical  112-833 S2A GS 114-352 S2A GS 172-456 S3 FFR 30-857 S3 FFR 31-011 Perentie FFR 48-964 RFSV 51 678, No 5 trailers 101-025,154-267, 154-640