24vVR6T CQ Project: EATSGTR rear firewall fab.

[vt10vt]

Maybe I missed it on an earlier page here in regards to the intake mani fabrication. But why didn't you put extended velocity stacks in the plenum on the 3 runners that match the 3 ports on the "front" of the head. So they are all equal length.


Sent from my iPad using Tapatalk

I'm pretty sure the 24v's deal with the offset via cam timing instead of different runner lengths.

Also this thread needs more updates.

[loxxrider]

Nice work Tim.

I'm interested in the way you are doing these patches... with all of the rust replacement work I've been doing on my 635csi, I am cutting out a section and cutting a piece of metal to fit in precisely and then weld it all in. It looks like you are overlapping the metal around the edges. Are you concerned with the two layers rusting between one-another?

[my2000apb]

chris, panels are painted with weld through primer on the very edges where they overlap, tacked in place the wire-wheeled clean and seam welded. then ground smooth-ish (leaving some protruding bead for strength but not much), they are then self etching primered and seam sealed all the way around.
and all painted over, inside and out before its on the road/track.

get yourself a small set of cleco fasteners and a pair of the cleco pliers, theyre awesome!!

and a pair of flanging pliers, pneumatic or manual
http://search.eastwood.com/ppc/flanger?SRCCODE=GA030240&device=c&matchtype=b&network=g&creative=31015464300&gclid=CKGq6Mnc_boCFYl9OgodEHYASA

[DE80q]

I was pretty sure you were using weld through primer. That stuff works quite well. Will really help to keep rust from forming in between the 2 pieces.

[loxxrider]

Thanks Tim, I'll definitely be using some of that. Might be time to invest in a tig soon too

[my2000apb]

its all done with mig, id prefer to mig body work anyway.

lots of tacks-inline then switching to a different part of panel, back and forth

practice, practice

[DE80q]

As I found out last night, sheet metal is a PITA to weld. Especially when im used to welding much thicker material.

[my2000apb]

Maybe I missed it on an earlier page here in regards to the intake mani fabrication. But why didn't you put extended velocity stacks in the plenum on the 3 runners that match the 3 ports on the "front" of the head. So they are all equal length.


Sent from my iPad using Tapatalk

I'm pretty sure the 24v's deal with the offset via cam timing instead of different runner lengths.

Also this thread needs more updates.

yes, compensation in the camshafts

and the update is being worked on right now, incoming shortly

[my2000apb]

UPDATE!!!
So I had a little bit of rust repair to deal with. Nothing major by any means and it was in an area that was pretty easy to access. The rear lower corners of the shell, where the seam comes together and wraps/goes around the lower corner of the uni-body behind the bumper, that’s where the problem was. The seam had started to rust and separate itself. The repair itself was pretty easy, it just took a bit of time.

The repairs are made with 1/8” thick, ½” x ½” angle and 20 ga. Sheet

Getting started

rear dr rust patch reinforcement outside.jpg (1.46 MiB) Viewed 45577 times

rear dr rust patch reinforcement inside above.jpg (1.6 MiB) Viewed 45577 times

rear dr rust repair patch inside.jpg (1.65 MiB) Viewed 45577 times

Cleco’s are the best !!!

rear dr rust patch being made to fit.jpg (1.51 MiB) Viewed 45577 times

rear dr rust patch ready to weld.jpg (1.54 MiB) Viewed 45577 times

[my2000apb]

And finally seam welded, primed, and seam-sealed!

rear corner rust repair welded and sealed.jpg (1.44 MiB) Viewed 45577 times

rear corner rust repair welded and sealed2.jpg (1.2 MiB) Viewed 45577 times

[my2000apb]

MORE!!!
I’m running the HTMS steering arms, and with their adjustability I needed to open up the steering arms holes for proper clearances. I cut them out carefully so I could reuse the rounded corners for a nice, clean install.

Here they are cut out

steering arm holes enlarged.jpg (1.47 MiB) Viewed 45577 times

steering arm holes enlarged 2.jpg (1.48 MiB) Viewed 45577 times

steering arm holes weld detail.jpg (1.18 MiB) Viewed 45577 times

I also added a large steering rack to strut tower brace. These cars are pretty flexible and with the large steering forces that will be generated, I thought it would be a good idea to reinforce it. The brace is wide enough that it was fully welded to either side of the upper portion of the frame rail, and then welded in/out all the way to the top. Getting the rack in/out is a bit tight, but its well worth it for the stiffness and strength.

steering rack strut tower brace.jpg (1.6 MiB) Viewed 45577 times

steering rack strut tower brace2.jpg (1.51 MiB) Viewed 45577 times

[my2000apb]

And here it is, all seam welded, etch primed, and seam-sealed

steering rack strut brace welded and sealed.jpg (1.4 MiB) Viewed 45577 times

steering arm holes welded and sealed.jpg (1.65 MiB) Viewed 45577 times

steering arm holes welded and sealed2.jpg (1.32 MiB) Viewed 45577 times

steering arm holes and brace welded and sealed.jpg (1.58 MiB) Viewed 45577 times

steering arm holes and brace welded and sealed2.jpg (1.39 MiB) Viewed 45577 times

[my2000apb]

MORE!!!
I had Ryan seam weld the exhaust manifold collector. The collector to flange to hotside transition will be beautifully formed. It will all get ground and polished.

t4 flange to collector welded.jpg (1.49 MiB) Viewed 45576 times

t4 flange to collector welded2.jpg (1.2 MiB) Viewed 45576 times

I got a lot of it done where the runners come together, now just to work on the collector to flange seam.
I will get this damn thing nice and shiny smooth!!!

t4 flange to inner collector welded.jpg (1.15 MiB) Viewed 45576 times

t4 flange to inner collector welded2.jpg (1.37 MiB) Viewed 45576 times

[my2000apb]

UPDATE!!!
My Delrin trans. bar spacer/bushing is back from machining. It sits between the trans. bar and the transmission mounting surface. Its ½” Delrin plate, with a 1/8” radius on the edges, with 1 1/8” reliefs for extra thick 304ss washers on which the trans. will sit.

delrin transbar bushing machined.jpg (1.3 MiB) Viewed 45575 times

delrin transbar bushing thick SS washer relief.jpg (1.38 MiB) Viewed 45575 times

I also got my intake manifold plenum flange re-machined. The recess for the plenum was brought in on either end ~3/4-7/8”. It was tough for Ryan to get it all jigged up in the Bridgeport, but he got it figured out and cut nice and clean. Intake manifold progress has restarted and be finished up soon.

intake mani plenum flange re-radiused.jpg (1.27 MiB) Viewed 45575 times

intake mani plenum flange re-radiused2.jpg (1.28 MiB) Viewed 45575 times

[my2000apb]

MORE!!
I added some reinforcement plates and angle to the chassis motor mount ears. No process pics, but here they are seam welded, etch primed, and seam seamled.

motor mount ear reinforcments welded and sealed.jpg (1.33 MiB) Viewed 45573 times

motor mount ear reinforcments welded and sealed2.jpg (1.33 MiB) Viewed 45573 times

motor mount ear reinforcments welded and sealed3.jpg (1.34 MiB) Viewed 45573 times

Fully seam sealed engine bay

seamsealed engine bay.jpg (1.41 MiB) Viewed 45573 times

[my2000apb]

MORE!!!
Front X-member
I had finished the front portion of the rad/ic support, but the lower bar still needed its vertical supports. Yes, there is room for the IC to slide in and out.

Here is the passenger side. The one piece of box tubing is relieved, and allowed to slide into the other like a puzzle piece. It is then seam welded around. See pics

front xmember support jigsaw detail.jpg (1.24 MiB) Viewed 45579 times

front xmember support jigsaw detail2.jpg (1.15 MiB) Viewed 45579 times

front xmember support jigsaw detail3.jpg (1.15 MiB) Viewed 45579 times

front x member support pass.jpg (1.47 MiB) Viewed 45579 times

[my2000apb]

Front X-member
Here is the driver’s side. Slightly different location because of where the boost piping needs to go for a smoother bend to the TB, vs the IC inlet from compressor.

front xmember support dr.jpg (1.62 MiB) Viewed 45578 times

front xmember support dr detail.jpg (1.23 MiB) Viewed 45578 times

front xmember support dr detail2.jpg (1.22 MiB) Viewed 45578 times

front xmember support dr detail3.jpg (1.16 MiB) Viewed 45578 times

And the trans. bar sleeves finish welded.

trans bar sleeves welded.jpg (1.37 MiB) Viewed 45578 times

[my2000apb]

MORE!!!
I also got some more time to work on the tubular sub-frames. Here are two more transverse pieces tacked together. The removable rear and the front of the front subframe where it goes under the t-reg oil pan.

subframe pieces tacked.jpg (1.49 MiB) Viewed 45578 times

The rear subframe will not be open like an oem subframe but have a removable front crossmember. It is removable so I can switch differentials without dropping the subframe and still have a much stiffer stronger setup. Maybe overkill, buts its done now so I’ll run it.
Here they are tacked on

rear sf removable member ends tacked.jpg (1.26 MiB) Viewed 45578 times

rear sf removable member ends tacked2.jpg (1.29 MiB) Viewed 45578 times

Here they are welded up

rear sf removable member ends welded.jpg (1.44 MiB) Viewed 45578 times

rear sf removable member ends welded2.jpg (1.35 MiB) Viewed 45578 times

[my2000apb]

MORE!!
And here is the rear removable member again. Its attached via 2 m10’s. there is a m10 coupler nut welded in the 1x3” tube in compression. The mounting flange side is a 10.2mm hole for the coupler nut to butt up against and the backside is seam welded to the upper part of the 1x3” tube.
Pics!

rear sf removable member holes done.jpg (1.84 MiB) Viewed 45578 times

rear sf removable member holes done2.jpg (1.58 MiB) Viewed 45578 times

[DE80q]

DAMN! this stuff is awesome! Keep the updates coming, I love looking at this thing coming together.

[loxxrider]

Indeed, it is awesome.

Tim, why do seam sealer? Just for cosmetics?

[my2000apb]

loxxrider,

on the parts I seamwelded, its mostly there to fill any small pits etc, prob overkill, but its the only sound deadening ill have ahah

for the rest, its really there to prevent water penetration, but I also use it,(like on the rear strut tops in-cabin) to keep random dust.grit.metal shavings etc out of there, as it seems to accumulate rapidly in the fab shop

[highlander69]

Looking great !!

[anotherbrick]

Sick. Everything is so clean! Cheers indeed.

[my2000apb]

thanks for the compliments

UPDATE!!!
Let’s get caught up. I’ve been working on the subframes and they are coming along nicely. The front is definitely more challenging to fabricate than the rear. The rear diff output cups are much more centered between the SF mounting points, so the c-arm mounts will be much easier to make. Then there is the front, with the engine/trans mounted lower and rearward. This puts the front output cups much further rearward and it’ll just be more difficult to make the front c-arm mounting tabs.

Here is the front transverse member of the front subframe, finished welded and reinstalled.

front sf front transverse member.jpg (1.2 MiB) Viewed 45474 times

front sf front transverse member2.jpg (1.19 MiB) Viewed 45474 times

And here is the tranverse member that will go under the bellhousing. The trans is mounted pretty low, so I relieved the tubing and used a thick plate and some endcaps, welded it up and flappered it reasonably smooth. I’m just holding it in the pic, and might trim the bottom of the bellhousing fins down a bit.

front sf under trans relief.jpg (1.5 MiB) Viewed 45474 times

front sf under trans relief to be mounted.jpg (1.41 MiB) Viewed 45474 times

And lastly a pic of the top of the coupler nuts that were trimmed and welded into the rear subframe to mount the removable piece.

rear sf removable nuts welded.jpg (1.83 MiB) Viewed 45474 times