Vert SFCs

[maoun]

What subframe connectors do people recommend. I'm looking at those from MM but they don't cross the car like i've heard some do.

Any recs?

I want this thing as stiff as possible

Marwane.

 

[toofast4u]

You might want to take a look at this thread.

Making a vert stiffer than a coupe?

MM Full Length or GRC are going to be your best bet.

 

[maoun]

awesome...thanks! couldn't find that when i was searching...i must be dumb

 

[maoun]

note: my griggs installer is rec'ing mm over grc

 

[maoun]

anybody?

 

[toofast4u]

What are you looking for MM Full Length subframe connectors are definitely one of the best subframe connectors you can buy. They are only really superceded by the Griggs in-floor subframe connector which is very invasive. Some that get to that level actually sometimes make there own subframes out of larger boxed steel.

 

[maoun]

i don't want to do the griggs frame rails....too invasive...i agree

i want good full-length (MM) + jacking rails (??) + cross braces (side to side across the car ???)

any ideas on the latter two?
thanks
m.

 

[toofast4u]

Originally posted by maoun
i don't want to do the griggs frame rails....too invasive...i agree

i want good full-length (MM) + jacking rails (??) + cross braces (side to side across the car ???)

any ideas on the latter two?
thanks
m.

The good full-length is MM and it has a cross brace that reinforces the seats.

Jacking rails will do minimum if anything to increase frame rigidity.

I don't know what cross braces you are talking about, but it is not standard practice to connect the driver and passenger subframes together. Doing so would require some major customization and I doubt would be worth any increase in rigidity.

 

[2F2F]

> maoun: note: my griggs installer is rec'ing mm over grc

Politics @ B&D, no doubt ;-) . Take a look at ntechnic's setup. Primo.

 

[maoun]

well, i've heard a lot of people say they prefer the mm over the grc either way...

i wanted the jacking rails for convenience....any way to put them over the MM full-length? if so, which ones should i buy

thanks
m.

 

[2F2F]

Unless they have compared the two side by side - visually and by the numbers - no way MM over the GRC subframes. I was adamant about going with MMs until I saw the light...

 

[toofast4u]

The jacking rails and subframe connectors mount at two seperate locations.


The blue boxes are where the subframes mount. The red ones are the jacking rails.

 

[maoun]

really....you have any good pictures of each?

i trust your opinion, so, any clue as to why most people rec the mm?

 

[maoun]

awesome toofast, i owe you....so what jacking rails should i buy? any clue?

thanks
m.

 

[toofast4u]

Originally posted by ox03
Unless they have compared the two side by side - visually and by the numbers - no way MM over the GRC subframes. I was adamant about going with MMs until I saw the light...

I wouldn't say no way they are really very close in comparision. I would actually venture to bet that GRC took MM subframes and copied them making some minor modifications. The modification being the GRC have a step at the rear torque boxes and the MM don't. The GRC might provide better ground clearence in the middle of the car, but I don't think that design is superior to the longer straight span of the MM. Other then that they look exactly the same down to the location of the side frame supports.

Now I think the matrix type design with integrated jacking rails that ntechnic has is awesome. If that is not a one off and they actually sell that I want it to put on my car to increase the rigidity of my MM subframes.

 

[toofast4u]

Originally posted by maoun
really....you have any good pictures of each?

i trust your opinion, so, any clue as to why most people rec the mm?

Take a look at this.
ntechnic website with GRC subframes

I don't think he will mind me linking it. If he does I am sorry.

Here are the MM on my car.
Front

Middle

Back

Here is the MM 4-point k-member brace which you should get also.

 

[KHsonic03]

Did the guy on that site weld on the subframes using a two post lift???!!! If he did, that's a big no no.:nono:

 

[maoun]

i'm getting the griggs k-member....will that k-mem brace still work?

i like ntechnic's setup.....so i guess maybe i'll have my shop custom something for me.

 

[toofast4u]

Originally posted by KHsonic03
Did the guy on that site weld on the subframes using a two post lift???!!! If he did, that's a big no no.:nono:

I totally missed that. :thumbsup:

Never use a frame lift to mount subframe connectors only a muffler shop style drive-on lift. Your frame will not be straight and you are mounting reinforcement to keep it that way. I actually checked my car before the subframes on a frame lift and it was noticeably not straight at the door seams and the doors didn't open and close right. It was a PIA, but I finally found a muffler guy in my area to do mine.

 

[toofast4u]

Originally posted by maoun
i'm getting the griggs k-member....will that k-mem brace still work?

i like ntechnic's setup.....so i guess maybe i'll have my shop custom something for me.

Probably not. I am actually planning on doing the Griggs K-member also, just not yet. I have the full MM suspension except for the k-member on my car now.