Split mono leafs vs conventional leaf springs

[russxr67]

Gotta buy some springs real soon and am looking for feedback on what works.

Car is an XR Fairmont and will see some strip action but mainly street .

[Roo2]

I just bought the calvert front & rear shocks plus the mono split leafs. Have not had a chance to fit them yet Russ so I can't give any practicle feed back but come September
The feed back I have received has been all good even for street use. But I will have a different set of shocks for the front when I'm not racing as I think the 90/10 may be a tad of a compromise for street cruising.

[russxr67]

Cool mate, I'll see you tomorrow and chat about it.

[Windsor]

Originally Posted by russxr67

Gotta buy some springs real soon and am looking for feedback on what works.

Car is an XR Fairmont and will see some strip action but mainly street .

If it's mainly a street car, why bother?

Cheers,
Steve.B

[russxr67]

Well, if they can do the job of a multi leaf setup without having the extra weight associated then I'm all for it.
If they can't then that's a different story.

[ToddZC]

I ran a set on my old ZC, in combination with a set of Caltracs. No problems with them on either the street or strip. I'm not sure how well they'd work without the bars at the strip. Suspect they'd suffer a bit of wrap on launch without the bars.

[greencapri408]

iv got them in my xt only ran them on the street so far
im using competition engineering slide a links with them
iv havent noticed anything bad about them compared to multi leafs
cant wait to get it to the track

[Windsor]

Originally Posted by russxr67

Well, if they can do the job of a multi leaf setup without having the extra weight associated then I'm all for it.
If they can't then that's a different story.

You are worried about a few pounds of weight in a street car?

Cheers,
Steve.B

[XT302]

Originally Posted by Windsor

You are worried about a few pounds of weight in a street car?

Cheers,
Steve.B

In theory less upsprung weight should assist in better handling.

[63futura]

Russ i had my springs redone by WA suspension
There was and old guy there that used to be into drag racing and he shorten some leafs and added one and since then ive never had axle tramp and is good enough to do 1.5 60ft on 235s and all up cost around $400

[prasac]

just a plain jane, low $ setup under the Capri. 15 year old leaf springs, Strange Shocks ($600) and a custom Caltrac setup. consistent 60's pass after pass, even with the old 15 year old Pedders shocks it ran a 1.30 60's, new Strange run 1.2's on slicks or radials. when it was a 10-sec NA ran a 90/10 front, has 60/40's now. drives so smooth on the street.

[russxr67]

Originally Posted by greencapri408

iv got them in my xt only ran them on the street so far
im using competition engineering slide a links with them
iv havent noticed anything bad about them compared to multi leafs
cant wait to get it to the track

Did you get them from competition engines Simon?

[greencapri408]

yes mate

[russxr67]

What did he slug you for a set if you don't mind me asking?

[greencapri408]

i got the mono leafs and the front and rear calvert shocks for $900

[russxr67]

You gonna put 90/10s up front?

[greencapri408]

yeah mate
i had them in the front of my xy for yrs with no issues
if its no good ill put 12 way adjustable qa1 s in it

[russxr67]

What about adjustable konis on the front? The 90/10 shocks wouldn't be much good for cornering would they?

[prasac]

90/10 is fine for cornering if the car is setup right.

[noosacuda]

Originally Posted by prasac

just a plain jane, low $ setup under the Capri. 15 year old leaf springs, Strange Shocks ($600) and a custom Caltrac setup. consistent 60's pass after pass, even with the old 15 year old Pedders shocks it ran a 1.30 60's, new Strange run 1.2's on slicks or radials. when it was a 10-sec NA ran a 90/10 front, has 60/40's now. drives so smooth on the street.

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Just a quick point,(i'm not being a smart "A", Know-it-all or anything) you'd be better off having the clamp on the front of the leaf springs and no clamps on the rear section of them.

[prasac]

Originally Posted by noosacuda

Just a quick point,(i'm not being a smart "A", Know-it-all or anything) you'd be better off having the clamp on the front of the leaf springs and no clamps on the rear section of them.

been there done that, this worked better for us.

[greencapri408]

my capri was the same needed the rear clamp i had a pic here some where of mine leaving on a 9.0 pass with the rear of the springs seperated about 300mil
looks crazy in the pic

[prasac]

Originally Posted by greencapri408

my capri was the same needed the rear clamp i had a pic here some where of mine leaving on a 9.0 pass with the rear of the springs seperated about 300mil
looks crazy in the pic

100% agree it looks crazy.

[azza11]

we have a HG in town where i live, he ran a 8.1 something last week at Willowbank, he has leaf springs, he is also a suspension guy guru in setting up rear ends, he has done Stu Henrys Capri, but he runs altra dear shocks in rear, but low 7’s. His HG is relevant due to its weight compared to a XR. He has a take on the Calvert System, one of the mags has a feature on him, its in the Performance Garage mag. I keep up to date by reading what they are doing overseas, especially leaf springers running in X275 class, this is the closest class to what most larger cars can run with drag radials etc and run the tyre. Also have a look at what the Trick Manswetto falcon was running, i know his setup is in a Street machine Ford’s issue. He has bigger perches with lowering block built in, every thing is bigger, but runs a full pack of leaf springs, i like the look of the mono leaf, as you can change the set up easily. Designed to use the Calvert adjustable shocks.