6G Celicas Forums

I like your approach to this. Using the rear trailing arms and struts to locate the gt4 subframe still leaves room error, but adding this step ensures you have everything lined up on both sides. What thought process did you go through to decide on how tall the new mounts should be?

I'll be updating my thread here soon with a few pictures, but i had the same basic approach. I installed the driveshaft and rear end to line everything up. Took some rough relative measurements and threw a design up in solidworks.

For the front mounts, I designed something a little less bulky than building an entire box across the floor pan. I made use of some engineering classes and designed mounts using tubing and triangulation.

thats pretty much the best way to set it all up IMO.
kinda lines everything up for you. lol

really digging the mount work, mikey. looks like your on your way!
are you planning on producing these on a "one off" kinda deal, or will they be somthing you'll share with the community?

What are you thinking... the sheet metal is too thin to support mounting directly to it... the frame rail on the passenger side is accessible but the driver side has the fuel and brake lines coming down.... color me interested.

Are you doing it so you dont have to weld them in? Use the old mounting holes to bolt an adapter plate? to which the new subframe bolts to.

Good idea. Welding under there is a little tight.

That's what I'm thinking.. if the frame rail is thick enough, I can drill a hole and capture the "back" part of the new bracket - I would feel pretty good about that arrangement.

These are the pictures just from my build thread. They were taken during the process. It gives you a good idea though.

Passenger side. There's a plate welded to the frame rail where the tubing is welded.


The hoop goes up and over and welds to the two mounting points, the point at the top (after the picture was taken) and two points in the tunnel


This is the driver side. Dropped the lines, though there is plenty of space to run them between the tube and the body if wanted.


The rear mounts are basically the same style. Just two boxes welded to the frame rail.

I know, doesn't seem like much holding it in there haha but I see the actual bolts/fasteners failing long before the mounts. The tubing used is dom 1.625x.120 and .125 plates for the frame rails. I did some stress tests in SolidWorks and felt pretty confident with the set up even though I don't think the fronts will be tied to the rears like I wanted them to.

If everything breaks on the first launch..well, back to the drawing board haha

Dude.. it looks solid... I never thought to use DOM tubing like that under the car.

Sure you did. I used DOM right there too; mine just comes through the floor and up to the cage haha.


I think thatll be plenty strong.

This post has been edited by czwalga: Sep 23, 2013 - 8:04 AM

I'm working out a forum deal with the owner, Hank to get these produced as a weld-in ready kit. He has the bend profile saved in his mandrel bender and all the dimensions for the mounts. Here's his site Hanksville

They've done some crazy builds. Top notch guys too. They actually like when the customers stop in and watch the work being done. I'm sure they'll do just that front part for you if you wanted.

Bend profile saved in his mandrel bender? You are cheating! Seriously though... you should probably PM me so I can get one of those...

And now for something completely different:


This post has been edited by qatar11: Sep 24, 2013 - 6:29 PM

Something funny happened last night.....

I got to the end of the book:



Tens years later.... I didn't really know what to do with myself...

When that book ends you drive it... think of stuff you should have done differently, let it sit around and sell it.

Happened with my rx7.

Speaking of... you should probably change your signature.

Just a minor update as I am fighting with swapping wheel bearings on the tacoma...

- a pair of the inner tie rods are in hand
- EBC Reds for the GT4 brakes are en route (cross listed with the Supra TT)
- OE Brake Rotors, front and rear, are en route from the UK

I think I found the fuel cell I want to use - its technically "out of date" (it would need to be re-certified for racing) but its discounted nicely.
Fuel Safe 12 Gallon

Should have more after this weekend...

This post has been edited by qatar11: Oct 9, 2013 - 7:17 AM

You wouldnt have any spare E-brake cables laying around would you. The aluminum housing that bolts to the knuckle is destroyed on the drivers side.

just FYI, i just recently replaced jenns, ended up picking them up from rockauto. they are pretty cheap, IIRC ~30$ a side.

The me of 2013 is strongly questioning why the me of 2003 felt it was necessary to completely disassemble this relay box... God only knows where those relays ended up...





This post has been edited by qatar11: Oct 23, 2013 - 6:07 PM