The first is: the width of the front of the seat from outside of the bolsters.
The second is: the height of the top of the front bolsters from the floor.

Width of the front of the seat is on the Sparco specification page. For the Evo3 it's listed as 22.8". As far as the height of the front of the seat that will depend on which brackets you use and how they are mounted.

 

Yeah, like I said, I measured the seat I have (Cobra Sidewinder) and it's not the same as the spec page from Cobra, so I'm more looking to double check reality vs. Sparco's spec so I'm not paying to ship back an oversized item that doesn't fit my car.

I do realize that depending on whether or not the fore/aft adjustment bracket is used will affect the seat mount height, but since all of their fixed back seats are side mount only and they make Mustang attachments to mount the side mounts to factory holes, I figured anyone here mounting them to a Mustang would be close enough for me to figure with or without the adjuster bracket.

 

I've got the Sparco Pro2000 in my '94. Based on my tape measure, Sparco's dimensions are accurate. Using stock ford sliders with Sparco sidemount brackets welded to them, the top of the side bolsters are about 13 -13.5" from the floor but I have also drilled the side brakets to lower the seat about another 1/2". Of course this height depends to a minor extent on how far the seat is slid back. Another area you should consider if you haven't already is the shoulder width. When I still had the door panels mounted, the door would just nudge the shoulder support of the seat. The seat you are considering is 2" wider in the shoulder.

 

The shoulder width is ok, I have about an extra inch at minimum between the shoulder bolster and the door. Of course the groove between the shoulder bolster and kidney bolster is tight on the Cobra seat against the door bar and once again, no idea how wide that part is on the Evo3, I'm gonna go out on a limb and guess it's wider than the Cobra there.

The more I measure, the more it looks like that seat won't fit.

Thanks for the reality check, I guess I'll look into other seats.

 

I have the Sparco Evo 3 in my 2000 gt. I'm not sure what measurements you are looking for... be real specific, and I'll measure for you.

 

Thanks but I decided that I was just kidding myself in thinking that the Evo3 was going to fit between my center console and the down bar portion of the roll bar.

I decided that despite the fact that the Kirkey intermediate road racing seat was a track only seat, the dimensions were just right to fit the car and be comfortable for extended periods of time. I ordered one from Summit with the cushion yesterday and it came in today. The only down side is the mounting, you have to drill your own holes for the side mounts and they require attaching the back of the seat to the roll bar. It appears as if I/O Port and Autopower both sell an adjustable mount that attaches to the bar and the seat and should work for me. I just have to decide how I'm going to mount it to the floor. If anyone has pics of a similar setup, I't be awesome to see them.

 

I too am interested in seeing how others have mounted their aluminum seats in a road race car. I recently purchased an ultrashield seat and after hours searching the best install info I could find for a fox body was on Corner Carvers. Holcomb Motorsports makes a universal mount both in steel and aluminum for aluminum seats though I am unsure if it will hold up to the rigors of road racing. My preference would be a prefabbed bracket that allows for side mounting but if it comes to it I will fabricate it and take it somewhere to be welded since I don't currently have access to a welder. Any info or pictures would be greatly appreciated...

I would post the links but am unable to do so with my relatively low post count...

 

I saw the CC post too, I'm planning to use either the Kirkey or I/O Port side mount brackets

Kirkey: http://www.ioportracing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=SB03&Category_Code=IH

I/O Port: http://www.ioportracing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=SB01&Category_Code=IH

The Autopower or I/O Port back brace

Autopower: http://www.ioportracing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=ASB&Category_Code=IH

I/O Port: http://www.ioportracing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=SBB15&Category_Code=IH

and the Sparco slider: http://www.sparcousa.com/pseats_acc.asp?id=156

One issue is whether to try to use a seat base from Sparco: http://www.sparcousa.com/pseats_acc.asp?id=537 and modify it to fit over the through-the-floor subframes or to get some steel, cut it and mock it and have someone with a welder and a welding ability (I have none) weld it for me. Also, not sure if the side mount brackets will reach the holes in the sliding mechanism, may need to modify for that too.

 

Here is a Pic of the Corbeau Sidemount Bracket kit...I just pick it up with my FX1 W-I-D-E..LOL!

Since the angle bracket is flat I'll use the appropriate Square tubing...bolted to the original rear points then weld a stud on top, so I can use the supplied bracket. I haven't measured how low my rear mounting holes are compared to the front but i'll guess 3" or so...

 

I would love to see some pics how you end up mounting the brackets to the floor. I will be mounting a sparco evo in my 2000 mustang soon. I bought it used with no brackets so I will have to find those and a method to mount the brackets to the floor

 

Here ya go... details in my build thread...The seat is so WIDE that it does not fit easily...definitely not with the side mounts...the FX1 or FX1-Pro might, but the floow is not Flat at any point...