Barely Functional Racing LS Swaps a Triumph TR4

Side pipes are hot. 

AWSX1686 (Forum Supporter) said:

Side pipes are hot. 

Yes, definitely watch your legs when exiting after a drive

gumby (Forum Supporter) said:

AWSX1686 (Forum Supporter) said:

Side pipes are hot. 

Yes, definitely watch your legs when exiting after a drive

Fried my calf on the sidepipe on mom's 76 firebird formula at big boy's when i was about 5.  I still remember screaming in the restaurant bathroom as my dad basically wiped the skin off my leg with a wet paper towel.  Dad ran a normal exhaust very soon afterward 

In reply to Patrick (Forum Supporter) :

Right..... So no side pipes.  Let's just go with side exit then.

Spent the night trying to visualize how to cut and route the exhaust.  I burned through an entire cutting wheel and now I have smaller pieces.

Side pipes work.  You need to mount the heat shield in the proper place where you ankles exit the car.  In this picture the exhaust dump needs to be further back by the rear wheel and heat shield needs to be past the door edge.

Like this.

In reply to noddaz :

I can't do it "the right way" and keep it all under challenge budget. That'll be an option for the car during the V 2.0 build.

In reply to noddaz :

Option B weld the doors shut so they have to climb in and out of the car. 

In reply to Stampie (FS) :

That would work for the kiddos, but I'm getting too old for that.

This happened tonight:

Then repeat for passenger side with different pieces:

And the money shot: dual side dump exhaust, V8 swapped TR4.

I need to add an O2 sensor bung to the passenger side, but other than that, it's Challenge ready exhaust.

If time permits, I'll try to incorporate the resonators and/or mufflers.

Heck yeah!!!

Going to be loud. But hopefully a good loud. 

Looking good! I got us some wiring diagrams printed off at work. I have an extra o2 bung if you need it! 

I just saw a mint-condition TR4 in traffic this morning and thought of you and your project. They are very tiny cars! It was absolutely dwarfed by the late-model Nissan Sentra next to it. LS should make it downright speedy.

If you can't add mufflers maybe at least a turn down for the course workers?

In reply to garaithon :

Awesome, thanks, as we discussed the wiring is going to be a stretch for me.  I have a bung in one of the extra pipes that I plan to cut out and re-use, if that fails, I'll take you up on that extra one.

In reply to maschinenbau:

Yes, they are small indeed, especially in the width,  Very narrow compared to modern machinery.   And Hell Yes, the LS is gonna make it a rocket ship.  I'm aiming for sub 2,000 pound curb weight.

In reply to Robbie:

There will be some thing more than what I showed.  But I WILL at least do the first start-up with what's shown now.  I'm thinking a few inches of flex pipe could join what I have now to the muffler / resonator that has to mount with the long dimension parallel to travel.  Then a quick turn down & out

I got a refill (well technically an exchange) on shielding gas today.  Time to get the other side fully welded up.

I haven't run the bottle empty in over eight years.  It cost $39 for the exchange on this #2 bottle of 75/25 Argon CO2.  Is that the going rate now /  fair price nowadays?

I have the tall boi and it's about 60 or 80 to fill can't remember. But I do a lot of welding and it gets filled about every other year.

Filling is definitely not proportional to the size of the bottle at airgas near me. The medium size bottle was 55, the 4 foot was 65.

Airgas wanted $125 to exchange my 125 cf Argon. Ace Welding Supply in Wixom refilled my bottle for $42.

Yeah in my experience if you're out of there under $100 you did ok.

These are exchange prices for straight argon, but ya'll need to use more gas to get real pricing!

Thanks for the comparison guys.  For what it's worth, my local Tractor Supply store is where I got the exchange.  I was surprised several months ago when I saw a customer carrying a bottle up towards the store, so I asked the cashier, and yep, they do exchanges, not refills. 

Grabbed a new transmission mount from the Rock:

Put together a quick riser on the trans mount plate that came with the car:

Also had some help from Indy-kid#2.  Transferring the holes through.

Added some strengthening ribs and got it installed.

Drive shaft even still fits

I hope these driveshaft angles work out okay.

Went ahead and tackled the O2 bung addition.

Cut the square hole too big, so I had some big gaps to fill.....

It didn't turn out pretty, but it'll work and more importantly, it's completed:

Progress!!  Glad to see it starting to take shape.