Eibach Pro Kit vs H&R Race Springs?

[DarkRattle]

Which do you guys prefer? Strictly handling. Which one's lower? No iso.

 

[01yellercobra]

I don't know which version they were, but I had Eibachs on my 98 GT and currently have them on our 06. They're red in color. I'm not impressed with either set. My 04 had the H&R Race springs when I bought it. It handled well and rode decent.

Just remember lower doesn't always mean better handling. In my experience the Eibachs run a little on the soft side.

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[shurur]

H&R race are essentially linear in the front and linear in the rear. Eibachs seem to be more like H&R sports..progressive.
So H&R will handle better, but ride will be tauter.

There is a table somewhere..EDIT guess i made one myself..

H&R Race F:750-850 R:260-280 1.25 1.00
Eibach Pro-Kit F: 450-570 R: 650-820

IRS Spring Rates:
• 2000 Cobra R F: 800 R: 750
• 2003/2004 Coupe F: 600 R: 600
• 2003/2004 Vert F: 500 R: 470
• Steeda Cobra F: 720-780 R: 650-790
• H&R Race F: 760-850 R: 770
• H&R Sport F: 700-760 R: 685
• Eibach Pro-Kit F: 450-570 R: 650-820
• Kenny Brown F: 725 R: 825

 

[Dave.O]

H&R race is notable handling improvement over stock 03 coupe springs, drop was not really significant.
so if your target is handling go with H&R and a set of 03 coupe bilstiens all around. if you plan on tracking the car I would recommend something more aggressive, I'm likely going to switch to CO's in then nest year. H&Rs still have some brake dive and body roll which affect weight transfer and cornering speeds on track

 

[DarkRattle]

Guess I gotta go with the H&R Sports since the Race doesn't fit 99 Convertibles.

 

[Dave.O]

dimensionally all 99-04 IRS springs are interchangeable .
Where there might be an issue is with stock dampers, aggressive springs might lead to under damped stock vert shocks. Not sure if H&R would be too much for stock vert shocks. should not be an issue in the front

 

[DarkRattle]

dimensionally all 99-04 IRS springs are interchangeable .
Where there might be an issue is with stock dampers, aggressive springs might lead to under damped stock vert shocks. Not sure if H&R would be too much for stock vert shocks. should not be an issue in the front

Yeah worded it out wrong, I know it fits just not if it would be ideal.

 

[shurur]

You absolutely have to get shocks with race springs as the 99-01 oem IRS rear shocks will not physically handle lowering springs. It will actually crush them.

Wife wouldn't let me get shocks..so I crushed mine...wish I took pics!!..they were bent..AND because of the spring rate increase almost any front lowering spring you get will make short work of the oem strut over time..but you can live with it for a time...ask me how i know;-)..they will let you know by groaning and popping like ball joints do.

 

[DarkRattle]

You absolutely have to get shocks with race springs as the 99-01 oem IRS rear shocks will not physically handle lowering springs. It will actually crush them.

Wife wouldn't let me get shocks..so I crushed mine...wish I took pics!!..they were bent..AND because of the spring rate increase almost any front lowering spring you get will make short work of the oem strut over time..but you can live with it for a time...ask me how i know;-)..they will let you know by groaning and popping like ball joints do.

I'm guessing the H&R sport will be fine though?

 

[01yellercobra]

If you have the budget you should seriously consider coilovers. I've had cut stock springs, Eibachs, and H&R's. The cut springs and H&R's were with Bilstein shocks/struts. I love my coilovers. I've adjusted the height quite a few times to get it dialed in. And the ride and handling really is much better than the conventional spring set up.

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[DarkRattle]

If you have the budget you should seriously consider coilovers. I've had cut stock springs, Eibachs, and H&R's. The cut springs and H&R's were with Bilstein shocks/struts. I love my coilovers. I've adjusted the height quite a few times to get it dialed in. And the ride and handling really is much better than the conventional spring set up.

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Honestly I'd love coilovers but for 1k plus for a set at the moment I REALLY can't do that lol.

 

[01yellercobra]

Honestly I'd love coilovers but for 1k plus for a set at the moment I REALLY can't do that lol.

I totally understand. That's why my 01 never had coilovers.

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[DarkRattle]

I totally understand. That's why my 01 never had coilovers.

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One day though for sure, my goal is to make the 99 run a 7 minute flat @ Nurburgring, maybe far fetched but if the ACR can do it, I don't see why a totally transformed 99 won't haha.

 

[shurur]

I'm guessing the H&R sport will be fine though?

I am not confident that the oem shocks will tolerate any lowering spring.
The 99-01 cobra oem shocks (and struts) were junk.

 

[DarkRattle]

I am not confident that the oem shocks will tolerate any lowering spring.
The 99-01 cobra shocks were junk.

how about the Tokico HE3723 HP? As you can see the budget aint too high at the moment lol

 

[shurur]

how about the Tokico HE3723 HP? As you can see the budget aint too high at the moment lol

Anything MM sells is good imo...lots of folks like the Tokicos

 

[DarkRattle]

j

Anything MM sells is good imo...lots of folks like the Tokicos

just wondering, aren't most advertised struts for the front of stangs actually shocks? I mean don't struts have springs?

 

[shurur]

j

just wondering, aren't most advertised struts for the front of stangs actually shocks? I mean don't struts have springs?

Because we have no upper control arms, struts are used along with the front towers on our cars for the structure of the front suspension as well as its other purpose as a shock.

The spring is mounted next to the rear shock and front strut...while the springs rest between the lower control arms and the front k member or rear irs frame for support.

COs (shock and spring) connect from lca to top of towers..putting pressure on the towers.

That is why some will argue that our cars are not designed to support COs.

 

[shurur]

Exhausted yet? Sure gets interesting.

Racers will often weld the rear shock tower seams and weld/plate the upper front shock tower before going CO.

Having said all that I don't think it is a big deal or MM would have deal with it should they had seen it as a problem..

I did have my rear shock tower seams welded though....and have tower braces front and rear..

 

[RX1Cobra]

I am not confident that the oem shocks will tolerate any lowering spring.
The 99-01 cobra oem shocks (and struts) were junk.

I've had the Eibach Pro Kit on my 01 for 15 years and it's been fine with the stock shocks and struts. No isolators either. Granted my car only has 60K on it but everything is still fine.