Hawk Rear Springs

[Keith]

I want to build my Hawk with a softer rear spring than that supplied with the kit (360lb/in). Having read the various opinions here, discussing with Guy and doing a few calcs on suspension frequency I would like to fit 250lb/in springs. Whilst it seems easy to source alternative front springs (2.25"ID) from several manufacturers/suppliers I'm struggling to find anyone who might have 4.5" rear springs in stock and therefore I'm looking at paying to have them made. Has anyone found a supplier who might have what I'm looking for? Or a real long shot, has anyone got a pair I can buy off them? 9"long x4.5"ID 250lb springs

Cheers, Keith

[ChrisCar6]

I've had a few pairs from https://dfaulknersprings.com/ The last 2 pairs were 240lb x 11"

[Stableblock]

.... Gerry had a range all the way down to 180 lb a few years ago. Worth a try.

[LPH_UK]

I've had a few pairs from https://dfaulknersprings.com/ The last 2 pairs were 240lb x 11"

I've used these for springs on my Vantage, very helpful.

[Keith]

I've had a few pairs from https://dfaulknersprings.com/ The last 2 pairs were 240lb x 11"

Thanks, I'll talk to Faulkners. And of course the softer springs might need to be longer than the 360lb x 9" I have.

[Keith]

.... Gerry had a range all the way down to 180 lb a few years ago. Worth a try.

Guy has kindly checked for me and Gerry only has the 360lb springs in stock.

[Longtimefan]

Kieth, have you given these a try, in West Bromwich, and I have no direct connection with them, bur know of people who have used them.

https://www.google.co.uk/url?sa=t&rc...e&opi=89978449

[Keith]

[QUOTE=Longtimefan;63774]Kieth, have you given these a try, in West Bromwich, and I have no direct connection with them, bur know of people who have used them.

/QUOTE]

Thanks, I'll give them a go too.

[Griff]

Not wishing to muddy the waters too much, but has anybody used rising rate springs on the rear of the Hawk? Would the use of rising rate springs require more spring length, and would it cause an increase/decrease in ride height?

I've previously had a couple of cars with rising rate springs, and the ride quality was massively improved, compared with the fixed rate spring set up.

[Keith]

Hi Griff,
Interesting idea. I agree that a rising rate is beneficial to avoid the aggressive harshness of hitting the bump stops. The way this is usually achieved in the OEM world is by using longer PU bump stops which effectively are spring aids. These can be designed to contact early in the bump travel and have a progressive rising rate. They are cheaper and easier to develop than a rising rate spring but for us the problem would be finding the right one that fits, has the right length and spring characteristic. I like the idea and I think I’ll look for one as a post build improvement. Has anyone already done it?