Anyone install a NSX-T rear strut bar on the Coupe?

[Osiris_x11]

Has anyone installed an OEM strut bar (triangular) from a NSX-T to a NSX coupe...

I assume the two ends of the 3-point bar from the NSX-T will fit where the coupe's bar fits over the shock towers w/o any problems. What approach would be bests' to make the last attachment point on the fire-wall? Is that particular part of the fire-wall reinforced on the NSX-T's (where the bar is bolted onto the fire-wall)?

Thanks! :redface:


Example:

vs.

 

[dave22]

I've also wondered about this. You should be the first to try it. It'll be interesting to see the results.

 

[Shumdit]

I assume you are putting it on a 91-94 car? If so, are the bolt holes even in the firewall for the front part of the brace? I assume by the wording of your question it would be a "No". My thinking is that the firewall in this area may be reinforced on the 95+ cars as part of the chassis mods done to compensate for the Targa.

 

[Yellow Rose]

Why ?

Has anyone installed an OEM strut bar (triangular) from a NSX-T to a NSX coupe

Why would anyone want to do this? It is well documented that the coupe's body is torsionally stiffer than that of the targa.....what do you intend to achieve by doing that?

 

[queenlives]

Re: Why ?

Has anyone installed an OEM strut bar (triangular) from a NSX-T to a NSX coupe

Why would anyone want to do this? It is well documented that the coupe's body is torsionally stiffer than that of the targa.....what do you intend to achieve by doing that?

my bet is to see if it'll make it even more stiff (grammatically correct? CHOPS JAZZ, WHERE ARE YOU WHEN WE NEED YOU?

 

[Osiris_x11]

2 attachment points are good, would 3 be better?

my bet is to see if it'll make it even more stiff (grammatically correct? CHOPS JAZZ, WHERE ARE YOU WHEN WE NEED YOU?

That's correct, increased stiffness never hurts... :biggrin: (Enzyte advert'... lol!)

Why would anyone want to do this? It is well documented that the coupe's body is torsionally stiffer than that of the targa.....what do you intend to achieve by doing that?

I'm working on my engine cover to be more revealing, so I was curious on how to make the engine-bay "unique". My primary motive was aesthetics along w/ increased stiffening (assuming the NSX-T strut bar may offer greater torsional resistance than the '91 coupe's version). However, I would only pursue this mod'/project if it wouldn't have any adverse effects to the structure of the NSX. I won't compromise the performance my NSX just for cosmetic purposes.

I do realize that the later coupes didn't even have the rear strut bar, unlike the '91-'94 models.

I guess it's better to ask '95+ NSX-T owners whether or not there is any additional reinforcement/hardware on the firewall other than the metal plate that the two bolts are fitted into to attach the 'triangular' strut bar?

 

[whrdnsx]

I'm curious on this fitment also. Any new info?

Is it just a matter of drilling the holes in the Firewall/bulkhead?

Is the interior side of the firewall reinforced where the Strut brace bolts to?

Any additional stiffness is always beneficial.

Thanks

 

[BD]

The area under the partition glass between the coupe and Targe are in different shap. The Targa model rise up to form a stronger, thinker aluminum panel. By theory, the bar will still fit on the coupe; however, you will not have any reinforced steel plate behind the aluminum that will hold the bolts. So if you want to drill holes on the coupe, make sure you do some sort of retrofit to make it work, if you drill into the aluminum, you will have some serious of problems. The bolts will, I mean, it will strip the aluminum under high stress.

 

[ctrlaltdelboy]

this one from Dali is actually designed for use in the coupe to provide the extra stiffness you are looking for, and is designed to mount into the same 4 mounting points used by the engine cover, so no need to mess around with your bulkhead.

 

[NSX-SA]

Hey guys I thought great brace but how much movement is there on a coupe anyway so I made up a brace slide to measure how much there really is. Like most things they look like they will do heaps but is it always necessary.

The attached pics shows how I made, mounted and measured movement across the engine bay which should produce the most flex. Each end of the brace is securely fixed so any movement will be seen where the two tubes slide in each other (middle). Clamps hold two steel rules in place however they will move and remain in that position if there is any movement between the two tubes (both inward and outward).

After 20kms of the hardest driving I have done for ages (well at least the last time I went to get milk for a coffee) through our famous Adelaide Hills in South Aussie the results are:

13thou compression and 13thou extension - total 26thou (.6mm) about this thick - I

Well I’ll leave it up to discussion if this is enough flex here to worry about.

Cheers

Les