H&R vs Sportline

[LT_Z]

How are the H&R compared to the sportline ?Im kinda sold on the sportline and the H&R are the only ones i dont know much about. Thanx

[RyanT]

well the drop is diffrent.. sportlines are less performance but i hear the H&R are real good.. they are progressive so as u turn they tighten up and stuff.. i am wondering what i should change to.. the proline, sportline, or h&r myself

[offtheline]

To my knowledge Im the only person on here that posts/reads this forum regularly and has H&R springs installed. If not, then I never knew about him or her when I was asking about the H&Rs. I had heard good things so I went ahead and bought them. They handle really well and look darn nice. In my opinion the sportline is too low for the horrible atlanta roads. I know of a few people who have the sportlines and really enjoy them. They are definitely a pretty low drop but from what I have read, they arent quite as much of a performance/handling spring. That is why I went with H&Rs. I like to compete in autocross every once in a while and the function was more important than the look. But it turns out the drop is attractive anyways. They are listed at 1.4" drop but the drop was a bit more than that.

take a look if you want:http://www.cardomain.com/id/offtheline

[LT_Z]

Im kinda wanting an all around spring, Im set on the AGX. Im going to be doing alot of serious drag racing, but I will drive the car ALOT ! and i live on 25 miles of mountain rd. I was thinking the sportline would help me cuz they are initialy softer on the launch. But all advise and opinions are welcome. Then i have never autoX but i would love to try or maybe even run the willow springs here locally. I dunno maybe i want to much from one setup ? thanx

[Grant@tirerack]

Serious drag racing would require a totally different spring setup than you will find with these street setups. They would have to be a drag-specific spring setup to handle the weight transfer and axle torque issues involved. I would check with a local race shop or contact one of the spring makers direct for the correct setup.

[Nismo_Freak]

Serious drag racing would require a totally different spring setup than you will find with these street setups. They would have to be a drag-specific spring setup to handle the weight transfer and axle torque issues involved. I would check with a local race shop or contact one of the spring makers direct for the correct setup.

Grant the spring rates on either of the lowering springs are no where near hard enough to make a difference on a drag launch. It's a different story with the coilover sets but with normal OEM style springs you can't really get a spring thats too hard for drag.

The problem you face with alot of weight transfer on a Nissan is the distortion of the contact patch by the resulting camber change. If you drop 2" in the rear on the launch you've created nearly 2 degrees of negative camber. This in turn can cause nearly an inch of your contact patch to decrease. This is one advantage solid axle cars like the Camaro have over us.

For a proper launch you'll want some sort of camber correction device in the rear to set your camber at either + 1 deg. or 0. For streetability I'd suggest 0.5 deg. negative. Positive camber makes the rear end VERY loose (meaning uncontrollable) but will insure that when the car does squat in the rear that you have the full contact patch on the ground.

Your gonna want something like a:

5 / 3 setup on the spring rate.

The numbers represent kgf / mm ... meaning it requires X kg's of force to compress the spring 1 mm.

[Grant@tirerack]

Yes, that is why I suggested he get in touch with a shop with experience with drag racing setups on this car. The street springs are not going to cut it.

[Exar-Kun]

HKS drag hipermax coilovers.

la duh.-chet

[RyanT]

yea i am lookin at the sportlines.. the H&R seem good but the sportline isnt that much lower.. only in the front its 1.7 and rear its 1.4 .. wonder if it still looks even?

[LT_Z]

Yeah im going to get the adjustable arms for the rear for that specific reason. I dont want a full drag setup i just want to make sure i can go to some softness for weight transfer, which is why im thinking the sportlines are my best bet. softer initially and with the AGX on the softest setting the car should transfer nice and still be able to mildly sporty on the road.

[Nismo_Freak]

Yeah im going to get the adjustable arms for the rear for that specific reason. I dont want a full drag setup i just want to make sure i can go to some softness for weight transfer, which is why im thinking the sportlines are my best bet. softer initially and with the AGX on the softest setting the car should transfer nice and still be able to mildly sporty on the road.

Seconded... I was more or less saying that any lowering spring will be fine as long as it's not a R*SR hard down type.

[LT_Z]

After installing the sportline is the camber outrageous ? Im almost leaning toward the Prokit now cuz i know they are fairly soft and dont drop as far. I guess what im asking is if i get sportlines is the camber easily fixed or is a extreme problem ?

[2sr20de]

The sportlines are for people who like the "look" of a lowered car. Not for those who are performance minded. When you see a low car... it's not to it's advantage. The reason why real race cars look so low is not because of the springs but the skirting that hids the gaps. I have H&R' s on my Sentra... totally different but I like them... I wouldn't have bought sportlines. And the more you drop the car... like an earlier post said... your camber gets more negative. and to compensate for that... caster camber plates... and those are not cheap. Prokits... or H&R 's would be much better for you if you don't want to spend $$ on a coil over set up... which would be ideal.

[LT_Z]

I hear the RS*R are about a 5/4 setup, what do you think about that Nismo Freak ? or should i just go with Prokit ? thanx in advance

[BadMojo]

I hear the RS*R are about a 5/4 setup, what do you think about that Nismo Freak ? or should i just go with Prokit ? thanx in advance

That would be the RS*R "race", not the "down" springs. They are 5 kgf/mm front and 5.4 kgf/mm in the rear (for an S13, the S14 springs are a bit softer in the rear).

The drop is advertised as 1.4" front and 1.2" rear (again, for the S13).

They seem like good springs, and the few people who have them seem to like them. I'm pretty sure there are no stiffer lowering springs readily available in the US. Not sure how well suited they'd be for drag racing, but they certainly seem like a quality spring.

The only issue I can see is the cost. The cost of the RS-R springs and the AGX shocks will be approaching that of entry level Tein coilovers. With the Tein setup, you have a damper that's actually matched to the spring rate.

[Nismo_Freak]

I hear the RS*R are about a 5/4 setup, what do you think about that Nismo Freak ? or should i just go with Prokit ? thanx in advance

Have you been reading anything I posted? ... I specifically said the RSR "hard down" springs aka "race" springs will be less than ideal on the drag setup.

Get the Prokit, you wan't the suspension to still be tall enough to travel. If you get the harder RSR springs you will introduce a bunch of hard wheel hop to your launch. Which is like a jackhammer on your halfshafts and diff.

[BadMojo]

Have you been reading anything I posted? ... I specifically said the RSR "hard down" springs aka "race" springs will be less than ideal on the drag setup.

Actually, I missed the "hard" and saw only "down". The change in name of the US market spring is somewhat confusing.

Anyway, I'm curious now. If you were setting up suspension with an eye towards drag racing, would a progressive rate spring be preferred to a linear one?

[Nismo_Freak]

No, you want a linear soft spring rate with the dampening being the changing point for your settings.