S13 Racing Seats HEIGHT ISSUE

[TRBOMOFO]

I got a pair of Corbeau TRS Seats and i sit in the ceiling.

Is there any way to make them lower?like:#1 i can maybe remove cushion#2 i cant make the seat brakets on them any lower so do i custom make something#3 is there any other kinds of seat brakets that would work that would make it lower

i did a search and all i found was zerothread?id=199817 talking about this company i will check out http://www.ioportracing.com/

any other info would be great

[ogden240]

The Corbeau brackets are designed on the drivers side to fit over that hump in the floor, which sucks because it does put them so high. I have the Corbeau Forza in my car and it sits me up there. I am not tall at all either. I had to remove the pad so my helmet would fit when I am doing track days and autocross.

I have been looking into lower brackets but most are for side mount seats (ie: Sparco, etc.). I have not contacted them but I have looked at the Nagisa Auto low mount brackets on http://www.more-japan.com from the looks of them it seems that you could mount either top or side. I guess I'll have to send an email to them and see.

Also I have heard and read that the lowest mounting seats for the S13 because of height issues (sitting in your roof) were the Bride seats.

[TRBOMOFO]

thanks dude

i have been thinking

they have put that hump in the floor cause the convertor runs right there i think i will remove it and then cut the floor out and re weld a flat piece in and fix the bar support there

but i am worried about how loud that crap will be then ???

i can do this to the passsanger side but that dont help me out any so??

[TRBOMOFO]

i called more japan and those brakets are only for the side mount seats

and corbeau said there is nothing we can do because of that hump

but they did say you can cut a inch of fopam out from the seat and that will help so i will look into that

[neverlift]

I too have been trying to figure this **** out. have yet to buy a bracket because its not gonna work right and I'll still be hitting the roof. I am going to look into the floor getting hammered but I got to get rid if my gutless cat. .

[adrianfromthecastle]

have you tried looking into getting some custom rails welded for your car? iirc, custom rails range about $70 +

[TRBOMOFO]

customs rails still wont work cause of that hump in the floor for that cat so i would scratch that idea

how did it sound after you removed your cat?? im pretty sure mine is hollow anyways

that hump has to go

[S13FASTBACKSR]

Bolt the seats right to the floor

[onosqv]

If you haven't already, using just the rail (instead of rail/slider) gives you another .25-.5 inches of clearance. I had this problem w/ reclinables + sparco/wedge seat bracket + sliders.

Other than that. You can only go sidemount, which will sit at stock or below stock height depending on settings.

[TRBOMOFO]

Bolt the seats right to the floor

i think i will do this but i will still have the brakets but moddified

i think im going to cut out my floor and weld in a new one

[TRBOMOFO]

i will look into the slider thing

and corbeau said i can cut a inch out of the cushion

[ZiG]

Did you guys ever stop to think that maybe that hump is also a reinforcement? Did you ever think about what might happen to the structural integrity of the car if you just cut it out?

[ishkabibble]

Did you guys ever stop to think that maybe that hump is also a reinforcement? Did you ever think about what might happen to the structural integrity of the car if you just cut it out?

Nothing if you weld in a new floor. It's not like the frame rails are being cut.

[ZiG]

Nothing if you weld in a new floor. It's not like the frame rails are being cut.

It's also not like the frame rails are the only thing that determine the integrity of the body. Do you have anything to back up your statement, or are you just throwing guesses around?

[ishkabibble]

It's also not like the frame rails are the only thing that determine the integrity of the body. Do you have anything to back up your statement, or are you just throwing guesses around?

Can you explain to me how a small hump in the pan that is strictly there for the exhaust/cat would be critical to the structural integrity of the car?

[onosqv]

On a slightly more serious note, on the convertible, the entire floor pan area is reinforced. I would like to think that there was a reason for that and that the floor pan hump does affect structural integrity.

The only issue I could see arising from welding in your own floor pan is if you didn't weld well enough (i.e. get full penetration, or use wrong gauge material, etc) that you could get a "danger to manifold" situation where the floor pan falls out in a rollover/accident...

[ishkabibble]

On a slightly more serious note, on the convertible, the entire floor pan area is reinforced. I would like to think that there was a reason for that and that the floor pan hump does affect structural integrity.

We're talking about the small (comparatively) hump on the driver's side of the floorpan over where the cat connects to the exhaust. We're not talking about the larger channel that runs the entire length of the car.

Check the diagrams in the vert supplement for the FSM... while there is an insane amount of extra bracing in the 240 vert, the "extra" hump for the cat is not specifically reinforced with bracing. So, there's ZiG's proof that the cat hump is not crucial to the car's structure.

The hump could probably even be hammered down rather than cut out and replaced.

[ZiG]

Uh, the fact that the vert has extra bracing in other areas is by no means proof that the hump on the fastback/coupe is not structurally significant. Think of it this way.. Take a piece of sheet metal as thick or thin as you like. Or paper, even, since you're more likely to have it handy. Then fold it back and forth so it looks like an accordian. Now try to bend it against the folds. It won't be as easy.

It's called a moment of inertia. The hump in question, significantly changes the floorpan's moment of inertia in that spot. Now you may be able to hammer it down or cut it out and drive around just fine, or you may notice some additional flex, I don't know. What I do know is that it will be weakened against certain forces if you remove it.

*edit* K, i just read the above post again in a slightly less tired state, I understand now. I thought you WERE talking about the whole channel. it's been a while since i had the seat out, but as i recall, that channel goes across and the cat hump comes back from it.. I don't think it would work as well for height as cutting it all out, but then you def. would lose strength.
Modified by ZiG at 11:19 AM 2/8/2007

[Cpt_Impossible]

I have a corbeau TRS and they actually called the shop that I had ordered from letting them know that the seats sat high and offered to shave the seat foam down by one inch for 25 bucks more. I opted for that. I still sit a little higher than I would like. I am 6' and my hair rubs when I need a cut. I do, however, sit at like 98 degrees, almost straight up. If I leaned the seat back a bit it wouldnt be an issue.

[TRBOMOFO]

Nothing if you weld in a new floor. It's not like the frame rails are being cut.

he is right this is the case there is no frame rails or any structual support going on around this hump area other then the cat is in the way

i am going to cut the foam down and try that

i do agree though it will be important for a good weld job in this area and then a nice paint over to make sure no rust (all this will be no problem)

[TRBOMOFO]

UPDATE:

i took the cushion out and put in a 2 ich piece of foam and it is amazing

i use to have a 2 finger clearance between my head and the roof now i got 5 fingers and the seat now hugs my legs alittle better

[S13FASTBACKSR]

congrats bro..but you guys went through a lot of trouble..you shouldve done what i will be doing when the time comes..by a set of s13 base model seats (they have the hole in the headrest) and have them wrapped in whatever color you prefer and then buy a set of racing harnesses and hook it up and your good to go..the base model s13 seat already has the look of a race seat. a lot cheaper too.

[slowsr20]

UPDATE:

i took the cushion out and put in a 2 ich piece of foam and it is amazing

i use to have a 2 finger clearance between my head and the roof now i got 5 fingers and the seat now hugs my legs alittle better

damn im going to do that to my seats now thanks for the info man

[ishkabibble]

congrats bro..but you guys went through a lot of trouble..you shouldve done what i will be doing when the time comes..by a set of s13 base model seats (they have the hole in the headrest) and have them wrapped in whatever color you prefer and then buy a set of racing harnesses and hook it up and your good to go..the base model s13 seat already has the look of a race seat. a lot cheaper too.

I'm finally doing this after 3 months of looking for the seats. Finding those seats was a PITA for some reason despite all of the S13s in junkyards.

I'm replacing the "seating area" portion of the base seats with solid black denim and dying the remaining tweed black with upholstery dye. The seats weigh about half of the leather LE seats they are replacing and are a bit lower.

[S13FASTBACKSR]

awesome let us know how it turns out

[TRBOMOFO]

Here we go PICS!!!

So i took the cushion out

heres the foam i cut

here it is in the seat

oh yeah here is a pic of how wide my back tires are for ****s

Modified by TRBOMOFO at 11:19 PM 2/15/2007
Modified by TRBOMOFO at 11:20 PM 2/15/2007