Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 04-15-2009, 08:19 AM   #1651
longfellow
Zilvia Addict
 
longfellow's Avatar
 
Join Date: Apr 2006
Location: Tampa Area
Posts: 606
Trader Rating: (2)
longfellow is an unknown quantity at this point
Feedback Score: 2 reviews
Quote:
Originally Posted by Jonnie Fraz View Post
^^I see you did your own fender braces. Look pretty cool.
Yeah, I did those about a year back. They bolt on to the door hinges, but its welded on at the upper frame rail. Made a HUGE difference.

Quote:
Originally Posted by E Double View Post
those tubs above look fucking sick. nice work man
Ha thanks, I've been working on the car since november. Got into a accident and have been rebuilding the car since. I'm just now getting the motor back up and running after the rebuild.

This is what it looked like 5 months ago:
longfellow is offline   Reply With Quote
Sponsored Links
Old 04-16-2009, 04:42 PM   #1652
drftmark
Zilvia Junkie
 
drftmark's Avatar
 
Join Date: Nov 2005
Location: tx
Posts: 524
Trader Rating: (5)
drftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura about
Feedback Score: 5 reviews
For those of you with s14's who cut their trunk out...

Did you need to fab anything up to brace it? or just rivet a sheet of metal over the hole or what.
drftmark is offline   Reply With Quote
Old 04-16-2009, 04:45 PM   #1653
GSXRJJordan
Post Whore!
 
GSXRJJordan's Avatar
 
Join Date: May 2006
Location: << 626 >>
Posts: 9,135
Trader Rating: (19)
GSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfection
Feedback Score: 19 reviews
Send a message via AIM to GSXRJJordan
Quote:
Originally Posted by drftmark View Post
For those of you with s14's who cut their trunk out...

Did you need to fab anything up to brace it? or just rivet a sheet of metal over the hole or what.
I replaced a quarterpanel and didn't brace the trunk well enough, thinking that everything behind the strut towers doesn't really matter/etc...

... and I was wrong lol. The trunk area definitely needs to be braced. I'm going to use 3/4" square tubing to go from the strut towers around the 'floor' to brace it... eventually it'll make its way into this thread

I can definitely tell you that it needs to be braced though ~
__________________


Jordan Innovations has a new web site!
www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com
GSXRJJordan is offline   Reply With Quote
Old 04-16-2009, 04:51 PM   #1654
drftmark
Zilvia Junkie
 
drftmark's Avatar
 
Join Date: Nov 2005
Location: tx
Posts: 524
Trader Rating: (5)
drftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura aboutdrftmark has a spectacular aura about
Feedback Score: 5 reviews
Quote:
Originally Posted by GSXRJJordan View Post
I replaced a quarterpanel and didn't brace the trunk well enough, thinking that everything behind the strut towers doesn't really matter/etc...

... and I was wrong lol. The trunk area definitely needs to be braced. I'm going to use 3/4" square tubing to go from the strut towers around the 'floor' to brace it... eventually it'll make its way into this thread

I can definitely tell you that it needs to be braced though ~
Ok I am going to send you a pm
drftmark is offline   Reply With Quote
Old 04-16-2009, 07:37 PM   #1655
Otto347
Nissanaholic!
 
Otto347's Avatar
 
Join Date: Dec 2008
Location: Upstate NY
Age: 41
Posts: 1,700
Trader Rating: (15)
Otto347 is an unknown quantity at this point
Feedback Score: 15 reviews
Well I got the cart about 90% done, a few more welds and it should be up and running!







__________________
Quote:
Originally Posted by atutt View Post
Or you could have stopped being a lazy asshat and done some research.
Otto347 is offline   Reply With Quote
Old 04-16-2009, 11:35 PM   #1656
duffman1278
Post Whore!
 
duffman1278's Avatar
 
Join Date: Apr 2007
Location: Covina
Age: 33
Posts: 2,844
Trader Rating: (8)
duffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really nice
Feedback Score: 8 reviews
Send a message via AIM to duffman1278
Those welds look really nice.

They look like MIG?
__________________


duffman1278 is offline   Reply With Quote
Old 04-17-2009, 07:42 AM   #1657
Otto347
Nissanaholic!
 
Otto347's Avatar
 
Join Date: Dec 2008
Location: Upstate NY
Age: 41
Posts: 1,700
Trader Rating: (15)
Otto347 is an unknown quantity at this point
Feedback Score: 15 reviews
Quote:
Originally Posted by duffman1278 View Post
Those welds look really nice.

They look like MIG?
Yes sir, thanks! (if only I could tig as well as I mig )
__________________
Quote:
Originally Posted by atutt View Post
Or you could have stopped being a lazy asshat and done some research.
Otto347 is offline   Reply With Quote
Old 04-19-2009, 11:02 PM   #1658
blu808
Post Whore!
 
blu808's Avatar
 
Join Date: Dec 2002
Location: Campbell, Ca
Age: 38
Posts: 5,010
Trader Rating: (3)
blu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfectionblu808 is close to perfection
Feedback Score: 3 reviews
Send a message via AIM to blu808
That welding cart is badass.


One thing I wanted to say is that almost every car I see has no sort of intercooler/rad ducting. So here is a teaser pic of what I will be finishing up next week.

Proper ducting coming to a Turbo Ls1 s14 next week.

__________________
blu808 is offline   Reply With Quote
Old 04-20-2009, 02:42 PM   #1659
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
haven't posted on this thread for a while. looks like some people have been pretty busy lately . have some free time so i thought i'd contribute some okay fab work i've done since the last post.

custom exhaust for a lexus sc430.




i forgot to take pics of it on the car.......

i/c piping for a ma70 supra





a little vacuum manifold (first thing i ever made on a mill)



battery tray and tie down (tie down is the second thing i've made on a mill)

welds are kinda crappy since i don't have 1/8" gas lens or collets and the 3/32 kept wanting to drop






I still need to work on my welds
fakts13 is offline   Reply With Quote
Old 04-20-2009, 05:21 PM   #1660
roco
Leaky Injector
 
roco's Avatar
 
Join Date: Feb 2009
Location: IRELAND
Age: 35
Posts: 145
Trader Rating: (0)
roco is an unknown quantity at this point
Feedback Score: 0 reviews
savage work, the welds dont look to shaby to me.
__________________
"Racing is life. Everything else that happens before or after is just waiting." ~Steve McQueen [Le Mans -1970]
roco is offline   Reply With Quote
Old 04-20-2009, 05:58 PM   #1661
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
thanks, my welds need to be more consistent. i can get some decent beads sometimes, but not all the time
fakts13 is offline   Reply With Quote
Old 04-20-2009, 06:17 PM   #1662
duffman1278
Post Whore!
 
duffman1278's Avatar
 
Join Date: Apr 2007
Location: Covina
Age: 33
Posts: 2,844
Trader Rating: (8)
duffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really nice
Feedback Score: 8 reviews
Send a message via AIM to duffman1278
How the hell do you guy guys weld aluminum so nicely?

I tried this weekend and I failed miserably.

I welded like a .05" thick piece of aluminum with my schools tig welder, and When I tried to get the puddle started like I would do on steel it just made a FAT hole in the aluminum and the aluminum was turning charcoal black around it.

Set the amps to about 65A and A/C, with the green tungston.
__________________


duffman1278 is offline   Reply With Quote
Old 04-20-2009, 07:31 PM   #1663
Jonnie Fraz
Premium Member
 
Jonnie Fraz's Avatar
 
Join Date: Jan 2005
Location: Cali
Age: 53
Posts: 1,371
Trader Rating: (29)
Jonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfectionJonnie Fraz is close to perfection
Feedback Score: 29 reviews
Send a message via AIM to Jonnie Fraz
Quote:
Originally Posted by duffman1278 View Post
How the hell do you guy guys weld aluminum so nicely?

I tried this weekend and I failed miserably.

I welded like a .05" thick piece of aluminum with my schools tig welder, and When I tried to get the puddle started like I would do on steel it just made a FAT hole in the aluminum and the aluminum was turning charcoal black around it.

Set the amps to about 65A and A/C, with the green tungston.
Clean the crap out of it! Almost sounds like there was a coating on the aluminum, or that it was anodized.
The reason aluminum needs A/C is because it oxidizes so fast. Aluminum oxide is second to diamonds in hardness and take a tremendous amout of heat to burn it off. Aluminum oxide melts at 3632 F where as aluminum melts at 1220 F. The more crap you have on your aluminum the harder the A/C wave has to work cleaning it off. This can melt you base material before you burn off the oxide, and the base will not puddle.
__________________

Stealth-Custom-Fab.com
Jonnie Fraz is offline   Reply With Quote
Old 04-20-2009, 07:40 PM   #1664
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
what did you have the a/c balance on? try learning on thicker Al. it is much easier to not burn a hole through. .050 is pretty thin stuff for a beginner. if you could get closer to .090 it would be easier. also practice by doing padded beads (don't try to fuse to pieces together, just run beads on a single piece in the middle). also, do you know if the alloy of the metal is weldable? some aluminum alloys have a D grade for weldability.
fakts13 is offline   Reply With Quote
Old 04-20-2009, 08:01 PM   #1665
duffman1278
Post Whore!
 
duffman1278's Avatar
 
Join Date: Apr 2007
Location: Covina
Age: 33
Posts: 2,844
Trader Rating: (8)
duffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really nice
Feedback Score: 8 reviews
Send a message via AIM to duffman1278
Thanks for the suggestion guys.

I believe the A/C balance was on( I assume thats the diagram that has the graph of a square starting at positive then going to negative.

I tried .05 because that's the only scap aluminum we had lying around at the shop.

I'll have to give it another go then with a thourough cleaning this time.
__________________


duffman1278 is offline   Reply With Quote
Old 04-20-2009, 09:16 PM   #1666
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
try putting a/c balance at like 5 or 6 if it's a syncrowave

edit: duffman, just read your post about 4130 on the last page. i would just leave the welds, heat treating isn't something most people can just "eyeball". unless you can get the whole chassis heat treated precisely, i would just leave it, you probably wouldn't be doing any good using an oxy-fuel torch to heat it up and letting it cool down naturally, just let it cool down naturally after you weld and that should be sufficient. heat treating to relieve stress usually means letting the metal cool down slower than naturally. also, your project probably won't be subjected to the same life expetancy and stresses aerospace applications would so i wouldn't worry about it all that much. john forces chassis were all heat treated and look how much it helped him in that crash a while ago. if you didn't put too much heat into the weld you should be fine.

Last edited by fakts13; 04-20-2009 at 09:39 PM.. Reason: don't want to double post
fakts13 is offline   Reply With Quote
Old 04-20-2009, 09:36 PM   #1667
duffman1278
Post Whore!
 
duffman1278's Avatar
 
Join Date: Apr 2007
Location: Covina
Age: 33
Posts: 2,844
Trader Rating: (8)
duffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really nice
Feedback Score: 8 reviews
Send a message via AIM to duffman1278
Not sure how to do that.

The machine is a miller 180. This one to be exact.

__________________


duffman1278 is offline   Reply With Quote
Old 04-20-2009, 09:46 PM   #1668
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
did you weld the Al. with the balance set like it is? if so that probably is your reason you're having problems.
the balance is the knob above the power switch. set that between 5-7 for 6061
fakts13 is offline   Reply With Quote
Old 04-20-2009, 09:53 PM   #1669
duffman1278
Post Whore!
 
duffman1278's Avatar
 
Join Date: Apr 2007
Location: Covina
Age: 33
Posts: 2,844
Trader Rating: (8)
duffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really niceduffman1278 is just really nice
Feedback Score: 8 reviews
Send a message via AIM to duffman1278
OoOo I'll try that then when I get to welding again. Thanks!

Hopefully I can get this down so I can fabricate my own intercooler piping and other stuff in the future.
__________________


duffman1278 is offline   Reply With Quote
Old 04-23-2009, 10:10 AM   #1670
240sxaddict
Leaky Injector
 
Join Date: Jun 2007
Location: MD
Age: 35
Posts: 89
Trader Rating: (0)
240sxaddict is making a name for him/her self240sxaddict is making a name for him/her self
Feedback Score: 0 reviews
Another cage, "discosteak" handled the welding. Sorry about the crappy pics.







240sxaddict is offline   Reply With Quote
Old 04-23-2009, 10:56 AM   #1671
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
^^those are some beefy tubes
fakts13 is offline   Reply With Quote
Old 04-23-2009, 12:12 PM   #1672
discosteak
Leaky Injector
 
discosteak's Avatar
 
Join Date: Aug 2007
Location: Maryland
Age: 35
Posts: 109
Trader Rating: (0)
discosteak is an unknown quantity at this point
Feedback Score: 0 reviews
just normal 1 5/8"
discosteak is offline   Reply With Quote
Old 04-23-2009, 12:17 PM   #1673
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
huh, for some reason they looked larger, maybe it's the black on the interior or somethin? regular dom or chromoly?
fakts13 is offline   Reply With Quote
Old 04-23-2009, 12:45 PM   #1674
xs240
BANNED
 
Join Date: Oct 2008
Location: .
Posts: 437
Trader Rating: (1)
xs240 is an unknown quantity at this point
Feedback Score: 1 reviews
fakts13 your work is frickin amazing, i love it
xs240 is offline   Reply With Quote
Old 04-23-2009, 01:20 PM   #1675
GSXRJJordan
Post Whore!
 
GSXRJJordan's Avatar
 
Join Date: May 2006
Location: << 626 >>
Posts: 9,135
Trader Rating: (19)
GSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfectionGSXRJJordan is close to perfection
Feedback Score: 19 reviews
Send a message via AIM to GSXRJJordan
Didn't want to run the rear down bars back to the strut towers? Most S14 cages connect the strut towers with a cross-bar, and have the rear down bars cross and connect to that... gives you quite a bit less angle - how close to 45* are those down bars?
__________________


Jordan Innovations has a new web site!
www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com
GSXRJJordan is offline   Reply With Quote
Old 04-23-2009, 02:03 PM   #1676
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
thanks xs240
fakts13 is offline   Reply With Quote
Old 04-23-2009, 02:13 PM   #1677
TanaMU
Zilvia Member
 
Join Date: Oct 2006
Location: Vancouver
Posts: 151
Trader Rating: (0)
TanaMU will become famous soon enoughTanaMU will become famous soon enoughTanaMU will become famous soon enoughTanaMU will become famous soon enough
Feedback Score: 0 reviews
What kind of welders do you all have? I'm looking to buy, but I dont know enough about it to know what I should get. I was thinking of spending $500 or so on a MIG that says it can weld up to 1/4" steel? Would that be good enough for welding exhaust piping, roll cage tubing, some brackets, etc?
TanaMU is offline   Reply With Quote
Old 04-23-2009, 03:05 PM   #1678
Otto347
Nissanaholic!
 
Otto347's Avatar
 
Join Date: Dec 2008
Location: Upstate NY
Age: 41
Posts: 1,700
Trader Rating: (15)
Otto347 is an unknown quantity at this point
Feedback Score: 15 reviews
Quote:
Originally Posted by TanaMU View Post
What kind of welders do you all have? I'm looking to buy, but I dont know enough about it to know what I should get. I was thinking of spending $500 or so on a MIG that says it can weld up to 1/4" steel? Would that be good enough for welding exhaust piping, roll cage tubing, some brackets, etc?
Yes that should be fine, but just buy a name brand (hobart, miller, lincoln) and get one that uses shielding gas. If you are doing small sheet metal work I would suggest using .025 wire. But if your doing .095 to .120 wall stuff then you might want to get .030. Just go to your local welding supply store and talk to someone, they should be able to point you in the right direction.

I have a Millermatic 210 (using an 80lb wire spool and and 230 or 244cf cylinder of 75/25) It last for a long time before I need wire or gas.

Also have a Millermatic 135 with a little bottle of 75/25 and run .025 wire in that one. (use it for sheet metal or small jobs)
__________________
Quote:
Originally Posted by atutt View Post
Or you could have stopped being a lazy asshat and done some research.
Otto347 is offline   Reply With Quote
Old 04-23-2009, 05:47 PM   #1679
BlazedGlory
Zilvia Junkie
 
Join Date: Jan 2003
Location: Canton, GA
Posts: 370
Trader Rating: (1)
BlazedGlory will become famous soon enoughBlazedGlory will become famous soon enoughBlazedGlory will become famous soon enough
Feedback Score: 1 reviews
I too am thinking about getting a welder. Right now I'm looking at the Miller Diversion 165. I don't know (or maybe care) if it is dumb to jump straight into TIG welding first, but I mainly want to be able to do aluminum, etc.
BlazedGlory is offline   Reply With Quote
Old 04-23-2009, 07:09 PM   #1680
fakts13
Zilvia Member
 
Join Date: May 2003
Location: socal
Posts: 245
Trader Rating: (0)
fakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nicefakts13 is just really nice
Feedback Score: 0 reviews
not dumb at all. go for it! diversion is a great bang for the buck welder!
fakts13 is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 09:16 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™