Jump to content

Spitfire 1500 rear spring. Choices


Recommended Posts

I've decided over Christmas to replace the buttons in the rear springs, fit polybushes etc.

However, I wondering if I should replace the complete spring. 

I have heard horror stories around the fact that they tend to sit too high and lowering blocks are needed.

But the real question is suppliers - James Paddock do a new spring for about £90 (https://www.jamespaddock.co.uk/rear-leaf-spring-mk1v-1500-3)

Or Canley Classic at some £235 https://www.canleyclassics.com/?catalogue=triumph-spitfire-mkiv/1500&diagram=triumph-spitfire-mkiv/1500-rear-suspension-road-spring

Now Canley I know do good stuff - but 2 1/2x the price? Is it that much better?

I might see if I can ring them in the morning and see what the difference is......

Link to comment
Share on other sites

Hello Mark

                  I bought one from these people about 2 years ago.

It sat a bit high at first but has settled now.

This how the car sits now with luggage and probably a full ish tank of petrol.(somewhere in Spain or Portugal!)

https://www.gbsprings.co.uk/heritage-car-springs/

 

DSC09970.JPG

Link to comment
Share on other sites

Sitting high is just down to the spring being

a) Needing to settle.
b) Being new but compared to some tired, sagging 40+ year old one that's technically been sitting too low.

Lowering blocks are normally a personal choice and down to people wanting their cars to sit lower/have more static negative rear camber than standard, rather than being to counter new springs being too high.

Link to comment
Share on other sites

The boot does have some stuff in it - but not 1/2 tonne! 

I assume the fitted length is correct- I've not measured it! Presumably if I jack up the front and measure them that will give me an idea? Might have chance this week if I get the kitchen and breakfast room decorated during my week off.........

Link to comment
Share on other sites

1 hour ago, Anglefire said:

The boot does have some stuff in it - but not 1/2 tonne! 

I assume the fitted length is correct- I've not measured it! Presumably if I jack up the front and measure them that will give me an idea? Might have chance this week if I get the kitchen and breakfast room decorated during my week off.........

No measure the spring length with the car on the ground, compressed length. Should be 8" I think (sorry, out of time to look it up....)

Link to comment
Share on other sites

so its looking like the spring pan is in the wrong place but its also worth detaching one  end of the anti roll bar if its bent and many are

you can get raised ride heights but would then expect the coil length  to be a bit different side to side if the bars affecting this

you dont have any leaning  but any idea gives you something  else  to do   Ha !!! 

Pete

Link to comment
Share on other sites

Surely if the spring pan is in the wrong place, and presumably too high, the length of the shock is wrong below the bottom pan (as Clive has intimated)  as the spring length is correct between the pans. 
Given the shocks are Koni I can’t see them being manufactured incorrectly? 

Link to comment
Share on other sites

My car. On Koni's. short 480lb springs and spacers which give 8" fitted length

Image

Image

Image

Image

Image

6 years, 20K miles, and about 15 countries, not to mention trackdays and autosolos, have taken their toll on the cosmetics.

And I ought to mention the gearbox is in for attention too..... (jumping out of gear at 6500+rpm in third, scary in a corner. Did it repeatedly at Goodwood)

The rear arch height gives you an idea of how the car sits. Very stable at high speeds, corners/grips well. It was about 15mm lower, but speedbumps were sometimes an issue.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...