i ride on 245 35 20 and interested in replacing my worn springs with stock or z springs. Any suggestions. I already replaced the shocks but didn't help.

 

Get coils instead of springs if your ride is iffy. You'll he happier that you spent the money on a set of coils and your ride will be more smooth.

 

im on tanabe df210 springs and im happy with the stance and ride on my 20s. 225/35 and 245/35 a conservative stretch that is on 8.5 and 10 wide rims

 

Tein S-tech's with no problems.

 

Tein 350Z H-Techs........no problems whatsoever, either. Riding on 20x9.5 RearS / 20x8.5 Fronts with 275/30ZR20 and 245/35ZR20 Tires.

And for my money, in terms of overall balance it's one of the best G35 Coupe setups, if not THE best on balance:

1. Spring rates: Essentially the same, i.e, not too much stiffness or softness from stock sport-tuned rates. Take a look at the rear spring rates for Tein G35 springs - either ones, S-Techs or H-Tech.......rates in the upper 200s? NNNNNNo. Way too soft.

2. No need for expensive camber kits to align, and I'm talking a couple/few hundreds more than the cost of the springs, installed.

This is due to .8 or less still allowing for mfg. specs to be met when re-aligning; 350Z H-Techs drop the.8 front/.7 rear (or, .5 more than the 350Z).

3. Aesthetics & Function: It's barely noticeable visually, but still noticeably enhances ride, handling, and performance (a little on performance; more responsive throttle due to less drag).

Seems to also be working well with the sport-suspension package shock upgrade. Trurst me, I've gone over some familiar uneven roads @ higher speeds than I realized. Thankfully, no outta control hopping, bouncing, bottoming out, or destroying the undercarriage like I was concerned might happen.

Still, I've seen all sorts setups, some with drops twice what I have. None are really bad, just a matter of choice based your desires.

Happy hunting!

 

Now that's what I'm talkin bout people. Man all these damn aftermarket springs confused be with the drop in height and I was worried abut rubbing. Whew. Ok anyone wanna post up a pic of said setup with 20's?

 

Did this work?

 

Ok so I'm gonna invest in those 350z h springs. Thanks bozo you cleared up my confusions. Awesome! Btw the pics are what really helped.

 

There you go, Marine...........barely noticeable. Semper Fi.

But if you save the pics to get a larger side-by-side, you'll see.

Gotta take a close look, but it is clearly a tad lower; you feel it more than you see it.......and it feels GOOD!!

I've had the car almost 4 years, and I was just thinking yesterday - AGAIN - how much I love driving it MORE than when I got it. Just passed 25,000 miles, too; Mon.-Fril daily driver.

Anyway, you've already got the shocks, so get the springs.........and show us some pictures!!

Rangers Lead The Way!! Alongside our Force Recon brothers.

 

You're welcome!!

 

SKP30-BUB00 is this the right part number for the H TECH SPRINGS? The pictures don't look right! The rear springs look way too tall

 

I'm selling my set of z-htechs if you are interested pm me

 

oops

 

For the G35 Coupe, yes.......SKP30-BUB00. (350Z is SKP26-BUB00.)

Here are fact sheets I dug up during my research:

Tein HIGH-TECH Lowering Spring Set
Infiniti G35 Coupe 2Dr 2003-2007 – Body Model: V35

SKU: TEiN-SKP30-BUB00 (1270)
Tein is a well-known name when it comes to spring and coilover damper kit. Tein products are made in Japan with high-grade material for performance and quality.

Tein H-Tech lowering spring provides approximately between 1.0 to 1.9 inch drop to achieve a balance between aggressive styling and comfortable ride experience. Check the detail specifications of each Tein H-Tech spring set for your car for the exact height drop measurement (included below).

Most Tein H-Tech spring sets feature rubber spring protector tube to dampen noise level. Tein H-Tech springs are first coated with zinc phosphate, a rust-proof material. The H-Tech springs are then finished with a long-lasting gold powder paint. In addition, each Tein H-Tech spring is made using a new material called Vanadium (SAE9254V), a strong, lightweight material that retain more spring stroke for optimal quality.

Tein spring manufacturing is a multi-step process involving:
1. Cold-coiling to create the spring
2. Low temperature tempering treatment to eliminate residual stress
3. End-face grinding according to the form of each car application
4. Double shot peening to the spring surface to increase spring life
5. Setting at elevated temperature to minimize loss of spring load
6. Coating treatment to prevent rust.

Each Tein H-Tech lowering spring set comes with 4 springs, 2 for the front and 2 for the rear. Each Tein H-Tech lowering spring set comes with a 1 year limited warranty. Product Summary:
- Tein H-Tech spring made from new strong, lightweight Vanadium material for optimal quality.
- Tein H-Tech spring combines a balance between styling and comfortable ride.
- Tein H-Tech spring comes with rubber spring protector tube to reduce noise.
- Tein H-Tech spring made with high quality powder coating and painting treatment to prevent rusting.
- Tein H-Tech spring made in Japan.
- Tein 1 year limited warranty.

Reference: Tein H-Tech spring, Tein HigH-Tech spring, Tein Guarantee Spec spring, Tein Guarantee Spec Luxury Master, Tein lowering spring.
FRONT REAR
Spring Rate (lbs/inch) 5.8/324 4.7/263
Ride Height Drop (inch) -0.6 -0.3

TEIN “H-Tech” Performance Lowering Springs
(SKP26-BUB00)
03-08 Nissan 350Z

Part Number: SKP26-BUB00
Spring Rate Front: 358 lb./inch
Spring Rate Rear: 375 lb./inch
Ride Height Lowering Front: 350Z - 0.3 inches (7mm)
G35 Coupe .8 inches
Ride Height Lowering Rear : 350Z - 0.2 inches (4mm)
G35 Coupe .7 inches
Product Name: TEIN Lowering Suspension Springs H-Tech for 03-08 Nissan 350Z

Description:
Tein H.TECH Springs are made from a new material called "Vanadium" which is much lighter then other springs, and increases the flexibility of the springs. They will lower your 350Z 7mm in the front, and 4mm in the rear, from stock ride height, for a slightly more aggressive appearance, lower center of gravity, and better aerodynamics, while staying close to the factory engineered ride height figures. Designed specifically for the 350Z platform, these springs will maintain a comparatively comfortable ride quality compared to OEM springs, while still maximizing performance. Note: Image is of a non-application specific Tein H-TECH spring.

Tein H-Tech Lowering Spring comes from the famous Japanese Tein stable. Known for their high-grade manufacturing material and top-notch quality and performance, Tein H-Tech Lowering Spring features rubber spring protector tube to dampen noise level. Offering between 1.0 to 1.9 inch drop, the Tein H-Tech Lowering Spring strikes a perfect balance between aggressive styling and comfortable ride experience. The double coating of zinc phosphate and gold-powder paint makes Tein H-Tech Lowering Spring rustproof and durable. Vanadium (SAE9254V), a new strong and lightweight material, is used in the manufacture of Tein H-Tech Lowering Spring, which helps retain more spring stroke for optimal quality. Tein H-Tech Lowering Spring also features 4 springs - 2 for the front and 2 for the rear, and a 1-year limited warranty. Tein uses a special multi-step process in the manufacture of springs:

Tein H-Tech lowering spring give a sleek and modern look to your car and also maintains the quality and stability of the car. One can also avoid the unwanted body roll by using lowering springs of good quality. There is no doubt that Tein H-Tech lowering spring are the best way to give the looks of your car an edge over the others and to kill the gap between the fender lip and the top of the wheel.

1. Cold-coiling to create the spring
2. Low-temperature tempering treatment to eliminate residual stress
3. End-face grinding according to the form of each car application
4. Double-shot peening to the spring surface to increase spring life
5. Setting at elevated temperature to minimize loss of spring load
6. Powder coating to prevent rust

*Avg Lower:
• 350Z F(0.3"), R(0.2") * Spring Rate: F(358 lbs), R(375 lbs)
• G35 Coupe F(0.8"), R(0.7") * Spring Rate: Same

FRONT REAR
Spring Rate (lbs/inch) 6.4/358 6.7/375
Ride Height Drop (inch) -0.3 -0.2

 

Tein S-Tech (Z application) and they ride great.