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New rear shocks and springs - standard or otherwise?

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  • Mark Serj
    started a topic New rear shocks and springs - standard or otherwise?

    New rear shocks and springs - standard or otherwise?

    Gents,

    As part of the rear end rebuild of my Stag, it would be daft to refit the old springs and shocks, especially as the standard items aren't too expensive. I was wondering if anyone had fitted new standard stuff from our suppliers recently and had any comments please?

    Cheers

    Mark

  • flying farmer
    replied
    The important thing is that the front and rear springs are matched.

    If one end of the car is stiffer than the other in roll, it will transfer more weight to the most heavily loaded tyre at the stiffer end making that tyre break traction sooner due to being over loaded.

    The basic rule seems to be that too stiff at the front will make the car understeer (through the hedge forwards), and too stiff at the rear will make the car oversteer (through the hedge backwards)

    i found fitting a front anti roll bar to my TR5 made it understeer as badly as my TR6 as it made the front end too stiff in roll compared to the rear. i took it off again until I fitted the Stag engine when I found that the lower centre of gravity of the stag engine reduced the tendency of the front end to roll, and found I could usefully refit the bar again.

    When I fitted its current progressive rate springs, I fitted the rears first and it understeered badly due to the non progressive uprated springs still fitted up front. When I fitted the matching progressive front springs handling returned to its normal perfect balance, but I now have a comfortable ride compared to the last 25 years of tooth rattling hardness!

    In conclusion i would suspect that if Monarch are using progressive rear springs, the fronts must be of a different rate to the Tony Hart ones, or they specify a different front anti roll bar.

    Neil

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  • Matt Cook
    replied
    From what I have read it is only Monarch that advocate the use of progressive rate springs on the rear. Given that the progressive rate springs help with roll control they sound like a good idea. Any downsides?

    Thanks
    Matt

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  • mike@thenook
    replied
    From Tony Hart's Ebay ad'

    Triumph Stag lowering kit, lowers by approximately 1 inches, kit comes with two front springs, progressive rated at 205/400LB, two rear springs rated at 457LB, two inner trailing arm brackets to correct the camber and full fitting instructions.

    Leave a comment:


  • new to this
    replied
    Originally posted by Mark Serj View Post
    Hi Neil - correct the camber?

    Can you elaborate when you have chance please?
    To correct the camber , when you've fitted lowered springs you change one of the brackets on the rear subframe arms, think it's the outside one

    Dave

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  • Mark Serj
    replied
    Hi Neil - correct the camber?

    Can you elaborate when you have chance please?

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  • flying farmer
    replied
    I have the progressive rate springs fitted to both my stags, one has standard shocks and the other has the kyb fitted.
    I find the standard ones slightly too soft on the front on certain road surfaces but not enough to bother sorting until I have to dismantle the front suspension.
    my first set of springs came from tony hart with the brackets to correct the camber, the second set from Chris witor without the brackets but I was able to use the left over set from the first stag to correct the camber. I was just able to get away with standard length shocks by cutting the bushes in half on the inside so the shock was effectively shortened at full extension on the rear.

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  • mike@thenook
    replied
    Originally posted by JeffW View Post
    Hi Mark

    I fitted Monarch Stags progressive springs last spring. Perfect height and car feels much more stable and not as leaning around bends for lack of a better phrase. I also fitted KYB Gas-A-Just from Paddocks. They were 77 each, so not as expensive as the top of the line ones, but I didn't want to fit the cheapest. Very happy with both.

    Jeff

    https://monarchstags.com/collections...e-springs-rear

    http://www.jamespaddock.co.uk/rear-s...b-gas-a-just-2
    You've the same set up as me then Jeff and Pete - it's the best ideal I think..

    Cheers,

    Leave a comment:


  • redstag
    replied
    Fitted standard height progressive rate springs from Monarch on mine some time ago. Height is perfect and very happy with them.

    Pete

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  • Mark Serj
    replied
    uh oh lots to think about and digest when I get a mo, but seriously, thanks for all the responses so far chaps!

    Regards

    Mark

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  • tractorjames
    replied
    Beware you cant judge the ride height off the free length. My lowered springs are a good few (3 or 4 inches if not more) shorter than standards but only drop the car by one inch to make it sit at13.5 because they are stiffer

    Leave a comment:


  • JeffW
    replied
    Hi Mark

    I fitted Monarch Stags progressive springs last spring. Perfect height and car feels much more stable and not as leaning around bends for lack of a better phrase. I also fitted KYB Gas-A-Just from Paddocks. They were 77 each, so not as expensive as the top of the line ones, but I didn't want to fit the cheapest. Very happy with both.

    Jeff

    https://monarchstags.com/collections...e-springs-rear

    http://www.jamespaddock.co.uk/rear-s...b-gas-a-just-2

    Leave a comment:


  • Seaking
    replied
    image.jpegimage.jpeg

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  • Seaking
    replied
    image.jpg Take a look at these my original and new. Back to my original ones
    Cheers Glenn
    Attached Files

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  • thebadleys
    replied
    Hi Mark, I had issues buying standard springs, both front and rear, below is a extract from a much longer post here about ride height etc. from 2015 so possibly other suppliers may have sorted it out !!!!

    https://socforum.com/forum/forum/sta...pring-Heights=

    Rears

    "Rebuild used Superflex trailing arm bushes and +5mm spring insulators on the bottom seats, new brake cylinders, shoes, springs, clips and brake pipes, greased sliding joint on drive shafts (grease nipples already fitted) new rear standard shocks, refurb prop fitted, brakes bled etc.

    Dropped onto the floor, Problem!, rear shocks not right, bouncing like a trampoline, I had primed them by pumping and stored vertically before fitting, email to to SOC, new set despatched and fitted (best service I've had from any supplier)

    Short road test to settle suspension over a few speed humps and then check over, all OK, ride height at rear now 14 1/2" - 14 1/4", delighted, car looks and sits properly, rear camber now looks good (going to arrange 4 wheel geometry check)

    So ride height correct all round, camber at the rear looking good (as well as the powder coated bits) car feels better and looks better."

    "Finally got round to properly addressing ride height issue, started with the front. Having spoken to the suppliers of the new springs who were not really a lot of help other than offering to sell me new lowered springs, the fact that they had sold me springs that were to high (which they didn't appear surprised about, but saying no one else had complained) they said that the lowered would solve the problem, whoopee!!! but would not accept the others back or offer me a discount on the lowered replacements.

    I contacted other suppliers with little benefit but was pleased when Stuart at SOC pointed me in the direction of Trevor at Faversham Classics, phone call to him and after a discussion of the problem he was not surprised, saying he has known of this problem for some time having bought springs that produced this issue. He recommended buying front springs from SOC, which I did and have now fitted them this weekend and the results are giving the standard ride height of 14 1/2" which is what I wanted.

    So in terms of recommending suppliers and service providers, Faversham Classics A1, friendly, knowledgable and prepared to give his time even though I am almost 300 miles away, SOC for providing quality parts with a great service and knowledge."

    Regards

    Nigel


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