74 620 V8 AutoX

[Cpl620]

Thats a tough one then. Youll have to just get custom headers made. Another option is just running one head to the turbo or getting a huge AR and turbine size that wont spool at low RPMs. Theres quite a few options.

 

Im doing the RHD too. Its not that much of a change other then making new holes in the firewall. Right or left. The headders with an engine that bit are going to be an issue.

[TheArtist]

Well how about that, I thought I was going to have a one of a kind v8 rhd. Guess you'll beat me too it but that pretty exciting though. I have a s15 front clip I'm using for my swap. Firewall is the same shape till it goes towards the passenger side of the rhd. Not a big deal, like you said they are just holes.

[Cpl620]

Origionally I was going to go RHD because I was going to throw a KA in there and wanted room for a large bottom mount. Now im just doing it now for the novelty. Im already building the thing from just about ground up so why not? Youll still have the uniqueness of the 5.0 and everyones frame design is diffrent in most cases. Rhd means no curb rash too. Wooooo!

[Farmer Joe]

RHD also means no drive throughs... lol

 

but no curbed wheels would be nice. :)

[Uber Deaf One]

RHD also means no drive throughs... lol

 

but no curbed wheels would be nice. :)

 

If you got reverse you could just hit up drive throughs backwards ;) 

[Cpl620]

If you got reverse you could just hit up drive throughs backwards ;)

 

I like where this is going...

[Cpl620]

so a lack of updates, ive been doing other things, like trapping these guys and making some art work.

 

on a side note though, Xmass came early this year and i got some new tools to use, so ill have to go outside andput them to good use.

[finney]

come on i was excited for a update

[Cpl620]

Its coming this weekend. I still cant find someone with a pipe bender and I dont want to skimp out on design quality and butt the pipes together. I Might just cop out and get a harbor freight one and damn near melt the pipe before I attempt to bend it. I only need about 14 bends total for the frame.

[JNHEscher]

I have a JD2 bender and a Miller TIG... and need to live closer.

[Cpl620]

Piss... a tig would make this project a work of art. Guess ill have to settle for a polished turd.

[Cpl620]

Well i found a machinist in my neighborhood to help me out, so i was finally able to get these 1" holes in this 3/8 stock. I also picked up a pipe bender as well, so were back on track with no kinds of hold ups. i had to wait for him to get home all day so not much progress. He plasmaed out my front tower tops and drilled a few things. ill be working all day tomorrow on the rear towers whick i think i can finish up. I also need to pick up some sand to make sure this bender doesn't kink the pipe in the process.

 

 

[finney]

you going to fish plate those joins? ,

[Cpl620]

You mean on the gussets? I dont see why I would need to. you probably know something I dont bringing it up though? (seriously, im pretty green to all this) the frame plate is pretty thick and I have it boxed inside with a boxed point right behind the joins on the outside there. If you mean the new frame to old frame, yeah Im getting to it. Thats why the old frame is still open.

[Cpl620]

i never seem to get rolling on this until about 2pm or something. im sure if i got up at 7 and rolled out at 8, i could get a lot more done.... anyways, the progress for the day. Kind of a mile stone as i got the gussets all lined up and welded. now i can give the jack a rest from holding that subframe.

 

 

I picked up some S14 suspension from a buddy for dirt cheap, but had to modify some joints as some things are wider on the s14 compared to the s13 sub-frame im using. no big deal though, 10min with a flapper disk fixed it.

 

 

Finally, for the night, i got to make some bends for the outer rear strut tower. i wanted to get a bit more of an aggressive angle in it, but the pipe wanted to flatten out so i figured this was enough. I packed that thing with wet sand and was ginger with it, but it still gave a little. If i can get the other side cherry tomorrow ill redo this side as well. the outside is 1-3/4", the inside, marked by the tape will be 1-1/4". all i need to really do is make the rear top plates and melt this shit together. should look a lot different tomorrow evening.

 

[finney]

from an engineering side of things all joins should be fish plated, especially joins that are running straight up and down like yours as they are stress points. A fish plate is usually a diamond shape plate from the same thickness material as the main steel. Should be approx twice the length of the hight of the frame with the angles for the <> approx 30-30deg. This reduces the stress risers on the welded join buy distributing the stress over a greater area. be a good idea especially seeing all your joins are around your IRS mounting and coil overs. 

 

 

Looking good though

[finney]

[Cpl620]

from an engineering side of things all joins should be fish plated, especially joins that are running straight up and down like yours as they are stress points. A fish plate is usually a diamond shape plate from the same thickness material as the main steel. Should be approx twice the length of the hight of the frame with the angles for the <> approx 30-30deg. This reduces the stress risers on the welded join buy distributing the stress over a greater area. be a good idea especially seeing all your joins are around your IRS mounting and coil overs. 

 

 

Looking good though

 

Good to know, i didn't know if they had a proper name before, and the shape i was unsure of. thanks. ill make some plate for the top and bottom on the front and rear joins. the center ill have to make an elbow to go around the end, as the plates overlap on the inside of the new frame, which would make a plate there kind of a waste for protecting from sheering/ripping.

[Farmer Joe]

damn... i need a 240sx subframe.

 

it doesnt help theres one in the back of a truck at the local yard... 

[Cpl620]

swipe that thing man! im not sure if it would help with your lows though. you're already pretty slammed as it is.

[finney]

dont need top and bottom, just sides. 

[Cpl620]

really? all my joins are at an angle though, ill do some reading on it in the morning. looks like i have some learning to do...

[Cpl620]

GAHHHHH! freaking stressed on this thing. i packed the second pipe tight as hell, more so than the first. this one crimped up on me, and i dont want to bend another pipe at $20 for 5'. im just going to take my first one and another pipe to a muffler shop like i should have done in the first place.... i was almost debating on just cutting straights and welding them together, but cooled down and decided to stick with it. called it early out of frustration. so in the spare time i just made the tops to the towers. im surprised i got a hole saw through that shit, hahahahah.

 

 

[JNHEscher]

Its probably nowhere near as cold in Cali as it is here, but if you have a way to fill your tube with water and freeze it, that makes an excellent mandrel. 5' may just barely fit into a chest freezer diagonally.

 

This is looking badass, though. Even the littlest of progress is still progress. Can't wait to see a rolling frame. X2 on fish plates.

['70dime]

Man I love that when someone makes a suggestion you read it, then do more research before responding. Very nice to see, makes reading threads more enjoyable when you know the OP isn't a huge doucher.

 

Also, love the progress, cant wait to see this thing rollin!