S14 Subframe Reinforcement - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SicBastard · 10-18-2010, 04:21 PM

Thought I'd start a definitive thread on reinforcing the rear subframe. And get a conversation going. First off, is it even neccessary? There's no point in wasting your time and adding weight.

Mazworks makes a reinforcement plate that welds betweein the rear diff mounts for the s14, supposedly they had a cracking problem in that area on their drag car. Looking at DSGs 240maxi it looks like the only custom work was a roll bar attachment point. Autech makes a crazy bolt on tubular brace.

I don't want this to turn into a S13 vs. s14/s15 sufbrame thread, so I'll outline the difference as I know them for the noobs: the s13 subframe has slightly more anti-squat built into the control arm mounting points, the s13 has provisions for 4 solid mounts at the rear of the differential cover vs. the s14/s15s rubber mounted 2 points, also the chassis mounting locations are slightly different requiring offset bushings if you want to update a car with an s13 subframe.

I just ordered a set of SPL solid diff mounts because they were the only ones I could find that included the rear diff cover mounts for the s14. I seriously believe that the best way to strengthen your subframe is to solid mount EVERYTHING. This effectively turns your chassis and differential into subframe reinforcements.

Here's all the pics I've collected over the year. Stolen from all over.

Mazworks:

GSRacer?

Autech

DSG

Nissan Road Race Forum I think?

Good Idea? Bad Idea? What have you done? Post some pics!

atutt · 10-18-2010, 05:00 PM

Unnecessary in my opinion. With maybe the except of Mazworx, if they keep cracking them.
Only thing I can see being really beneficial would be making a lightweight tubular subframe all together... Or making some swiss cheese out of a stock one.. :S

Just my pocket change...

The bottom two pics belong to Dave Briggs... Built by Sequence Garage up here in Canada...

JSimpson · 07-26-2015, 12:43 AM

Bump this up, has anyone ever had an issue with 14 subframes cracking? I mean from hard use, not from hitting shit...

rawgarage · 07-26-2015, 03:29 AM

Anybody filled one with the expanding foam mix?

10-18-2010, 04:21 PM	#1
SicBastard Zilvia Addict Join Date: Mar 2006 Location: New York, NY Posts: 803 Trader Rating: (0) Feedback Score: 0 reviews	S14 Subframe Reinforcement Thought I'd start a definitive thread on reinforcing the rear subframe. And get a conversation going. First off, is it even neccessary? There's no point in wasting your time and adding weight. Mazworks makes a reinforcement plate that welds betweein the rear diff mounts for the s14, supposedly they had a cracking problem in that area on their drag car. Looking at DSGs 240maxi it looks like the only custom work was a roll bar attachment point. Autech makes a crazy bolt on tubular brace. I don't want this to turn into a S13 vs. s14/s15 sufbrame thread, so I'll outline the difference as I know them for the noobs: the s13 subframe has slightly more anti-squat built into the control arm mounting points, the s13 has provisions for 4 solid mounts at the rear of the differential cover vs. the s14/s15s rubber mounted 2 points, also the chassis mounting locations are slightly different requiring offset bushings if you want to update a car with an s13 subframe. I just ordered a set of SPL solid diff mounts because they were the only ones I could find that included the rear diff cover mounts for the s14. I seriously believe that the best way to strengthen your subframe is to solid mount EVERYTHING. This effectively turns your chassis and differential into subframe reinforcements. Here's all the pics I've collected over the year. Stolen from all over. Mazworks: GSRacer? Autech DSG Nissan Road Race Forum I think? Good Idea? Bad Idea? What have you done? Post some pics! __________________ BURN OUT IN YOUR FACE! 1998 S14 LS7/T56 swap in progress, build thread: http://zilvia.net/f/tech-talk/147301...d-gto-pan.html

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10-18-2010, 05:00 PM	#2
atutt Zilvia Addict Join Date: Oct 2006 Location: barrie, ontario, canada Age: 35 Posts: 997 Trader Rating: (0) Feedback Score: 0 reviews	Unnecessary in my opinion. With maybe the except of Mazworx, if they keep cracking them. Only thing I can see being really beneficial would be making a lightweight tubular subframe all together... Or making some swiss cheese out of a stock one.. :S Just my pocket change... The bottom two pics belong to Dave Briggs... Built by Sequence Garage up here in Canada...

07-26-2015, 12:43 AM	#3
JSimpson Banned from the Marketplace Join Date: Nov 2009 Location: Indiana Posts: 1,009 Trader Rating: (15) Feedback Score: 15 reviews	Bump this up, has anyone ever had an issue with 14 subframes cracking? I mean from hard use, not from hitting shit...

07-26-2015, 03:29 AM	#4
rawgarage Banned from the Marketplace Join Date: Oct 2007 Location: h o u s t o n Age: 32 Posts: 5,990 Trader Rating: (75) Feedback Score: 75 reviews	Anybody filled one with the expanding foam mix?