This could be another option for people. I bought some carmake corns seats from japan for my miata.

Dimensions are pretty much the same as the Bride Exas III (fits in my fd without hitting the door)

The side bolsters are lower, material is more durable and price wise its better than the Brides.

Also since theres just a thin layer of padding it sits pretty low.



Brides in my fd for comparison (side bolsters are really high)

 

Anyone know what containment seats fit? Are there any good ways for mounting seats wider than 420 mm on the bottom right over the floor?

What are the mounts in the picture above this thread? Do they have a maximum width? Do they let you go back far enough?

Does the Sparco Ergo fit? If so, which sizes?

 

The ones I posted on the Bride seats are Garagestar seat rails. Theyre 2 separate pieces with slotted bases. Not sure on the Ergo but the Evo seats I had were too wide.

heres a mini review I did on them.
https://www.rx7club.com/interior-ext.../#post11870916

 

Not sure if those should even be called rails. But how far back can you put the seat compared to the stock seat or the Bride rails? That extra headroom doesn't mean much if your legs are too close...

Were the Evos too wide on the bottom or two wide on the shoulders?

 

Pole positions do fit just barely. Passenger seat slightly touches the door.

I modded my oem rails to work with the side plates to retain sliding function. It does sit a bit too high for my taste. Anyone know any sliding rails which will work with these seats/side plates?

 

So are there any containment seats that will fit in the FD at all? The Cobra Evolution GT is clearly not one of them... And according to the list, the Sparco Circuit won't fit either.

Any idea if the Sparco Ergo will fit?

I need something wide enough for my fat **** but narrow enough at the shoulders to still fit in the car.

Actually, does anyone know the width dimensions that will or will not fit? I suspect the shoulder width limit is around 580 mm just going by the last of seats that don't fit.

Can the Suzuka GT fit the right side with modifications?

 

Sparco REV with FD specific slider rail from Japan .
Does not clear the door panel

 

id say they pretty much the same as bride rails for how far back they can go.
I'm 6' and didnt have it all the way back.

Evos were too wide at both actually. well you could still close the door but the shoulder would rub the door panel. The bottom was too wide with the garagestar brackets and their supplied spacers but it could be bolted in if didnt care about adjustment.

 

How I managed to fit the Pole Positions. The lower seat width of the Pole Positions are the MAX any sit will fit in the FD. Its a good reference.

 

After test fitting mine in the passenger (right) side of my buddy's FD a while back, it looked like the shoulder bolster will just barely clear. The problem lies with the leg bolsters. They're just too wide at the front and hit the tranny tunnel and the door, and that's with the seat all the way back. You MIGHT be able to trim down both sides enough to fit, but Wompa said the smaller (not GT version) will fit the passenger side.

I'm not 100% on the shoulder bolster clearing because I didn't have it bolted in due to the leg bolsters not being able to clear. However, I would image that part would fit just like the driver's side. I thought the bottom part of the seat would fit too since I figured both sides were the same dimensions, but I guess not.

I would imagine the Imola will fit just fine since it doesn't have the leg bolsters that come up on the sides. I'm pretty sure that seat was already listed as one that will fit anyway.

 

Well, I'm probably going to strip the interior anyway. Would it clear in that case? The car is RHD but I would guess the tranny tunnel is the same.

What do you suspect is the biggest butt (or rather, widest hips) that can fit comfortably in the GT version?

 

Yeah I believe it'll fit just fine with a stripped interior. Wompa knows better than I do, but I believe the shoulders just barely touch. The seat fits in the driver's side from what he says, and the passenger side by the legs it won't, but with everything stripped out there shouldn't be a problem.

I have about 38" waist, I believe my hips are about 36-38" and I fit fine in the GT. Maybe just a bit of wiggle room but not much. I fit that seat really well. I'm 6'3" btw and the shoulders are at the perfect height for me. Wompa said he's 6'4" with about the same build.

I went to Wine Country Motorsports in Denver to do a test fit first and sat in a Sebring GT and fit really well, and it's about the same size in the hips. When I got the Suzukas I was very happy with how I fit.

 

Would the Sebring GT fit? With or without an interior?

 

I'm not sure on that one. I haven't looked at the specs in a while. I'm not sure whether the part around the head/helmet would fit or not. I'd think it wouldn't be as wide as the shoulders, but I'm not sure.

 

Would you take a ruler and measure from the center of the seat to the window? Then double it and we'll have the maximum width for halo sections.

 

I don't have my seats installed yet. I'm still trying to get ahold of Wine Country to see if they'll let me swap one of the seats for the smaller version, or I'll just get some Imolas instead.

 

Does anyone have any actual experience with Sparco Pro 2ks? The above responses seem like assumptions. Based on measurements, the seat is smaller than the Evo which kinda fits

 

Anyone use the Ultrashield Spec Miata seat? I'm certain the standard 15" version will fit but I wonder about the 17" and 18" versions. The 17" apparently requires a slight massaging of the transmission tunnel in a Miata, while the 18" apparently requires floor pan modification. I also wonder if it will fit with a bolt-in cage with door bars.

I also wonder if any of their other models (the ones with shoulder bolsters) fit.

 

Valkyrie
So are there any containment seats that will fit in the FD at all? The Cobra Evolution GT is clearly not one of them... And according to the list, the Sparco Circuit won't fit either.


Bride chassis fitment guide shows the Maxis III fits the FD on the LF (Lowmax) or the FG (very high front, lower rear) rails.






I need something wide enough for my fat **** but narrow enough at the shoulders to still fit in the car.

You might not fit bride seats then, but my fat *** does... because fat squishes.


Actually, does anyone know the width dimensions that will or will not fit? I suspect the shoulder width limit is around 580 mm just going by the last of seats that don't fit.

It depends on what height that widest shoulder section is at as well. My 560mm Vios III Japan rub the door with the seat all the way back on the rail, but Bride shows the 590mm Maxis III fits (and you can see the widest part is higher on the seat in the pics).

Can the Suzuka GT fit the right side with modifications?

If you are stripping your interior just about anything will fit.

On the same note if you put in the wrong roll cage nothing will fit.

 

I ran 16" Ultrashield Rally Sport seats in my FD with modified Atomic Rex mounts. Seat cleared just fine everywhere. You might be able to run a 17" but it'll be tight and might require seat modification (that's the joy of having an aluminum seat).

Car had a custom weld-in roll bar. No door bars. If you're going to run proper door bars anyway (nascar style), then you won't be worrying about door panels either.

I don't have any pictures of the old setup. I'll be putting the same passenger seat in my new car and a 15" driver's seat. that won't be until spring time though as I need to get a new roll bar made for the new car.

 

Bride seats are a compete non-starter for me. They're designed for Japanese guys who average 5'7" and something like 140 pounds. Even their XL seat is clearly designed for a 5'8" fatass, since the width is OK but the shoulder belt holes are too low (I sat it one).

Too low and you hit the door, too high and you hit the window. Damn you, Mazda.



I may or may not need/want to keep it street legal, in which case I have to either keep the door and roof panels (everything else but the dash can go) or I have to replace them with something that I can prove is fire resistant.I could probably get away with cutting them up though... Roll cage is fine as long as it's padded... Although a full cage will make heel-toe harder since it's an RHD car.

 

I would be very surprised if the Sebring GT fit. If you want to PM me, I'd be happy to talk about fitment with you

 

Although a full cage will make heel-toe harder since it's an RHD car.

Oh god, I didn't see you mention its RHD.

You have the catalytic hump in the floor to contend with on that side. Since you are tall this is going to make fitting you and the seat even harder as the RHD seat simply cannot be as low as the LHD seat.

Is it non-sunroof I hope?

 

Yeah. Apparently (literally just looked this up) only autos had sunroofs after 1992 in Japan.

The car in question doesn't have an air pump or apparently a cat, so I could probably get away with pounding the tunnel if a hump is only designed to clearance the cat....

The funny thing is I sat on the floor without any carpet and though... Yeah, this would be acceptable. I'm not even that tall by US standards, it's just that these cars (and their ilk) weren't really designed to be driven by tall fat people wearing helmets with a roll cage installed.

 

The closest you will ever get to this is by running an aluminum seat with fixed side mounts. Run it without the cover at the track if you need to be as absolutely low as possible. No composite seat will ever get you lower.