The fabrication thread. - Page 95 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

GSXRJJordan · 03-20-2010, 03:17 PM

Quote:

Originally Posted by dato

U think the 110 mig welders could penetrate the material to weld a standard roll cage? Never tried it. Maybe pre heat the metal and weld??

I would not recommend it, but I know it has been done. Properly pre-heating the cage in the car is tough since paint is on the other side of the metal being heated.

240 GTR · 03-20-2010, 05:58 PM

yea, it could be done. i tried welding a piece of scrap .120 wall dom with my old lincoln 140v mig. it would start out fine, but didnt have a good enough duty cycle to keep anything decent going. i would only be able to weld about 3 inch sections before i had to turn it off to cool down.

not fun if youre going to do a cage

atutt · 03-20-2010, 06:16 PM

Quote:

Originally Posted by dato

U think the 110 mig welders could penetrate the material to weld a standard roll cage? Never tried it. Maybe pre heat the metal and weld??

No... End of story.

T chop · 03-20-2010, 06:29 PM

What dimensions should I use for a "HMIC"?

blu808 · 03-20-2010, 10:07 PM

Picked up a sweet little lathe today. Has auto feed on 2 axis and variable speeds.
Under $800

GSXRJJordan · 03-20-2010, 10:24 PM

Quote:

Originally Posted by blu808

Picked up a sweet little lathe today. Has auto feed on 2 axis and variable speeds.
Under $800

Dude that's awesome. I might have to play with that next time I'm up there and make some SAE->metric misalignment spacers.

atutt · 03-20-2010, 10:33 PM

can someone give me a quick run down on these misalignment spacers?
Pretty sure I missed it in the roll centre thread.... don't really wanna go searchin through 20 pages to find out.

blu808 · 03-20-2010, 11:01 PM

Machined a new ebrake handle.

dato · 03-20-2010, 11:03 PM

So it just spinsa and u adjust the cut? Is it easy to operate?

azn_romeox · 03-22-2010, 09:00 PM

Spring break progress. Cars been running the ls1 for 2 years. Aprox 15k. Lots of California HPDE events. Theres been a few revisions I wanted to make to the swap. Run a full crossmember, Push motor back. Run softer mounts, Finally running a cam

Got a Flowmeter regulator for my gas coverage, and using the the diaphragm regulator for my backpurge. That "t" fitting was expensive for just brass. $25, and thats being hooked up.

Backpurging is amazing! I didn't want to risk sugaring
]

Cut down the sump, added addition capacity off to the right side.

Heat= warping. Bolted the pan to the block to do the welding. Added that copper strip to absorb some of the heat.

silviaguy240 · 03-22-2010, 09:16 PM

Quote:

Originally Posted by dato

So it just spinsa and u adjust the cut? Is it easy to operate?

kinda, you have to know feed rates, cutting speeds, be able to keep a good bit. but lathing is pretty easy. i made some pretty good looking stuff in school for my manufacturing class. i want a lathe, but i'd really have very little use for it. i could make shift knobs i guess.

ka-titties · 03-22-2010, 10:48 PM

i made my aluminum shift knob on a lathe. its fun and easy to learn.

GSXRJJordan · 03-22-2010, 11:46 PM

Quote:

Originally Posted by atutt

can someone give me a quick run down on these misalignment spacers?
Pretty sure I missed it in the roll centre thread.... don't really wanna go searchin through 20 pages to find out.

Misalignment spacers sound like they're for suspension geometry lol, but they're actually just the inserts that go into spherical rod ends. "spacers", etc, lots of names.

Quote:

Originally Posted by blu808

Machined a new ebrake handle.

I have lathe envy. I've wanted one so bad for like 3 years now, dont have the room. Now I'm gonna have to make something on the $30k Femco mill at work so you'll have something to be jealous about lol.

*TougeLabs* · 03-23-2010, 04:07 PM

It's been a while since I've really done anything on either of my cars but I redid the whole fuel system on the Lsx the other day with a double pumper setup in the back feeding a -8 to a earls filter up to the stock rails that I cut and removed the baffles on swapped the cross over hard line for a -6 up front to connect both rails and institute a return system to a Aeromotive fpr and returned with a -6. I was really having issues getting the motor to run 57psi of fuel pressure even with the corvette filter/regulator is was still running in the 70s. Anyway heres a few pictures of the project. "Sorry for the crappy iphone pictures"

Stock Rail: after I started cutting

New crossover:

Looks pretty stock:

Got my Track car back from paint, Porsche Gt3 rs green.

J ROK · 03-31-2010, 09:52 AM

Started welding school in January. LOVE IT!

Ive been sucking at welding for the past 5 years(self taught), and now I have an excellent instructor to tell me why I suck!

Started off with stick in Feb., just surfacing with different rods and just recently moved on to joints.

6010 root pass
my best one so far

And the new pit bike we made at our shop.

dato · 03-31-2010, 02:59 PM

how the hell u get on the bike?>

uperformance · 04-01-2010, 10:14 AM

Quote:

Originally Posted by dato

how the hell u get on the bike?>

pegs in the back. haha

blu808 · 04-01-2010, 12:49 PM

That bike is rad.

Here is a custom tubular front crossmember I made for a 260z/rb26

dato · 04-01-2010, 02:35 PM

Blue when u do such thing do u drop the motor in with a engine hoist and mock it up like that? Or how do u start or the steps?

blu808 · 04-01-2010, 02:44 PM

I have a big metal table on wheels. I put the engine onto that then lower the car down on top of it. Once everything is lined up correctly I start the fab process.

O BTW. I just passed my AWS welding test today for 4130. Woot.

atutt · 04-01-2010, 03:52 PM

CWB > AWS lol
(seriously... cwb> aws for technical reasons, lol)

blu808 · 04-01-2010, 04:04 PM

Blu808 > atutt

lol

Mister.E · 04-01-2010, 05:43 PM

Quote:

Originally Posted by blu808

Blu808 > atutt

that crossmember looks boss

atutt · 04-01-2010, 07:22 PM

Quote:

Originally Posted by blu808

Blu808 > atutt

lol

lol, I concur...

longfellow · 04-02-2010, 05:03 PM

Charge pipes, these are guesstimates at the moment, I dont have the intercooler or couplers yet but they're pretty close to where I need them.

I'll finish them next week when I get the core and couplers in.

Having less than 3 feet of intercooler piping should be awesome.

D.Adams · 04-02-2010, 05:41 PM

^^ looking good man ..

240 GTR · 04-03-2010, 01:30 PM

so i need some help with tig aluminum. i'm running a miller syncrowave 180, AC, 3/32 pure tungsten, 1/16 filler rod, and staright argon at around 15 cfm.

I just recently got this machine, and havent tig'd anything except steel before. i was trying to do a butt weld on some 2.5" od aluminum intercooler pipe. when i would go to start the weld, the arc jumps around erratically and sounds terrible. it doesnt even start to melt the metal until i put alot of heat into it...somewhere around 90 amps. when it starts to melt, the arc seems to smooth out, but it just burns through no matter how much filler i add and leaves a black soot kind of deposit. i cleaned the piece with a wire brush before trying to weld it.

can you guys give me any pointers or tell me what i'm doing wrong?

thanks!

GSXRJJordan · 04-03-2010, 01:39 PM

^^^ When people have welded aluminum for me, it seems like they're modulating around 80-90 amps, and they always get the material suuuuuuuuuuper clean. Black soot is most likely dirty aluminum. Those that are actually good at it should probably chime in lol.

BlazedGlory · 04-03-2010, 03:40 PM

Quote:

Originally Posted by 240 GTR

so i need some help with tig aluminum. i'm running a miller syncrowave 180, AC, 3/32 pure tungsten, 1/16 filler rod, and staright argon at around 15 cfm.

I just recently got this machine, and havent tig'd anything except steel before. i was trying to do a butt weld on some 2.5" od aluminum intercooler pipe. when i would go to start the weld, the arc jumps around erratically and sounds terrible. it doesnt even start to melt the metal until i put alot of heat into it...somewhere around 90 amps. when it starts to melt, the arc seems to smooth out, but it just burns through no matter how much filler i add and leaves a black soot kind of deposit. i cleaned the piece with a wire brush before trying to weld it.

can you guys give me any pointers or tell me what i'm doing wrong?

thanks!

I am VERY new to MIG welding. Never done TIG, but I've been reading a lot. I have read you should use a different brush for aluminum to prevent contamination and make sure everything is VERY clean. Any input on how important the brush is from experienced aluminum TIGers?

duffman1278 · 04-03-2010, 05:00 PM

When I practice TIG on aluminium, I brush my coupons real quick, nothing thorough then if I feel like it, I hit with some acetone. But that's for practice stuff. You can usually get away with just hitting the scrap piece with a Stainless brush and practicing.

03-20-2010, 05:58 PM	#2822
240 GTR Zilvia Junkie Join Date: Mar 2006 Location: michigan Posts: 316 Trader Rating: (10) Feedback Score: 10 reviews	yea, it could be done. i tried welding a piece of scrap .120 wall dom with my old lincoln 140v mig. it would start out fine, but didnt have a good enough duty cycle to keep anything decent going. i would only be able to weld about 3 inch sections before i had to turn it off to cool down. not fun if youre going to do a cage __________________ Detroit Drifting Co.- Detroit, MI

03-20-2010, 10:07 PM	#2825
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 41 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	Picked up a sweet little lathe today. Has auto feed on 2 axis and variable speeds. Under $800 __________________

03-20-2010, 11:01 PM	#2828
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 41 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	Machined a new ebrake handle. __________________

03-23-2010, 04:07 PM	#2834
TougeLabs Premium Member Join Date: Jan 2007 Location: New York Age: 39 Posts: 1,570 Trader Rating: (7) Feedback Score: 7 reviews	LS2 Fuel rail Mod. It's been a while since I've really done anything on either of my cars but I redid the whole fuel system on the Lsx the other day with a double pumper setup in the back feeding a -8 to a earls filter up to the stock rails that I cut and removed the baffles on swapped the cross over hard line for a -6 up front to connect both rails and institute a return system to a Aeromotive fpr and returned with a -6. I was really having issues getting the motor to run 57psi of fuel pressure even with the corvette filter/regulator is was still running in the 70s. Anyway heres a few pictures of the project. "Sorry for the crappy iphone pictures" Stock Rail: after I started cutting New crossover: Looks pretty stock: Got my Track car back from paint, Porsche Gt3 rs green.

03-31-2010, 09:52 AM	#2835
J ROK Zilvia Member Join Date: Jun 2007 Location: Lighthouse Point, FL Age: 39 Posts: 282 Trader Rating: (1) Feedback Score: 1 reviews	Started welding school in January. LOVE IT! Ive been sucking at welding for the past 5 years(self taught), and now I have an excellent instructor to tell me why I suck! Started off with stick in Feb., just surfacing with different rods and just recently moved on to joints. 6010 root pass my best one so far And the new pit bike we made at our shop. __________________ AERO-K GARAGE

03-20-2010, 06:29 PM	#2824
T chop Zilvia Junkie Join Date: Mar 2007 Location: Vancouver Posts: 325 Trader Rating: (0) Feedback Score: 0 reviews	What dimensions should I use for a "HMIC"?

03-20-2010, 10:33 PM	#2827
atutt Zilvia Addict Join Date: Oct 2006 Location: barrie, ontario, canada Age: 38 Posts: 997 Trader Rating: (0) Feedback Score: 0 reviews	can someone give me a quick run down on these misalignment spacers? Pretty sure I missed it in the roll centre thread.... don't really wanna go searchin through 20 pages to find out.

03-20-2010, 11:03 PM	#2829
dato Zilvia Junkie Join Date: Jun 2009 Location: california Age: 37 Posts: 434 Trader Rating: (6) Feedback Score: 6 reviews	So it just spinsa and u adjust the cut? Is it easy to operate?

03-22-2010, 09:00 PM	#2830
azn_romeox Zilvia Member Join Date: Nov 2002 Posts: 288 Trader Rating: (0) Feedback Score: 0 reviews	Spring break progress. Cars been running the ls1 for 2 years. Aprox 15k. Lots of California HPDE events. Theres been a few revisions I wanted to make to the swap. Run a full crossmember, Push motor back. Run softer mounts, Finally running a cam Got a Flowmeter regulator for my gas coverage, and using the the diaphragm regulator for my backpurge. That "t" fitting was expensive for just brass. $25, and thats being hooked up. Backpurging is amazing! I didn't want to risk sugaring ] Cut down the sump, added addition capacity off to the right side. Heat= warping. Bolted the pan to the block to do the welding. Added that copper strip to absorb some of the heat.

03-22-2010, 10:48 PM	#2832
ka-titties Zilvia FREAK! Join Date: Oct 2009 Location: Near that guy you know Posts: 1,561 Trader Rating: (11) Feedback Score: 11 reviews	i made my aluminum shift knob on a lathe. its fun and easy to learn.

03-31-2010, 02:59 PM	#2836
dato Zilvia Junkie Join Date: Jun 2009 Location: california Age: 37 Posts: 434 Trader Rating: (6) Feedback Score: 6 reviews	how the hell u get on the bike?>

04-01-2010, 12:49 PM	#2838
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 41 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	That bike is rad. Here is a custom tubular front crossmember I made for a 260z/rb26 __________________

04-01-2010, 02:35 PM	#2839
dato Zilvia Junkie Join Date: Jun 2009 Location: california Age: 37 Posts: 434 Trader Rating: (6) Feedback Score: 6 reviews	Blue when u do such thing do u drop the motor in with a engine hoist and mock it up like that? Or how do u start or the steps?

04-01-2010, 02:44 PM	#2840
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 41 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	I have a big metal table on wheels. I put the engine onto that then lower the car down on top of it. Once everything is lined up correctly I start the fab process. O BTW. I just passed my AWS welding test today for 4130. Woot. __________________

04-01-2010, 03:52 PM	#2841
atutt Zilvia Addict Join Date: Oct 2006 Location: barrie, ontario, canada Age: 38 Posts: 997 Trader Rating: (0) Feedback Score: 0 reviews	CWB > AWS lol (seriously... cwb> aws for technical reasons, lol)

04-01-2010, 04:04 PM	#2842
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 41 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	Blu808 > atutt lol __________________

04-02-2010, 05:03 PM	#2845
longfellow Zilvia Addict Join Date: Apr 2006 Location: Tampa Area Posts: 606 Trader Rating: (2) Feedback Score: 2 reviews	Charge pipes, these are guesstimates at the moment, I dont have the intercooler or couplers yet but they're pretty close to where I need them. I'll finish them next week when I get the core and couplers in. Having less than 3 feet of intercooler piping should be awesome. __________________ http://timeattackdan.blogspot.com/

04-02-2010, 05:41 PM	#2846
D.Adams Post Whore! Join Date: Feb 2007 Location: Lake Havasu City Arizona Age: 40 Posts: 2,587 Trader Rating: (9) Feedback Score: 9 reviews	^^ looking good man .. __________________ “About the time we think we can make ends meet, somebody moves the ends.” ―Herbert Hoover The build http://zilvia.net/f/builds-builds-on...u-city-az.html Owner of NVS Fabrications

04-03-2010, 01:30 PM	#2847
240 GTR Zilvia Junkie Join Date: Mar 2006 Location: michigan Posts: 316 Trader Rating: (10) Feedback Score: 10 reviews	so i need some help with tig aluminum. i'm running a miller syncrowave 180, AC, 3/32 pure tungsten, 1/16 filler rod, and staright argon at around 15 cfm. I just recently got this machine, and havent tig'd anything except steel before. i was trying to do a butt weld on some 2.5" od aluminum intercooler pipe. when i would go to start the weld, the arc jumps around erratically and sounds terrible. it doesnt even start to melt the metal until i put alot of heat into it...somewhere around 90 amps. when it starts to melt, the arc seems to smooth out, but it just burns through no matter how much filler i add and leaves a black soot kind of deposit. i cleaned the piece with a wire brush before trying to weld it. can you guys give me any pointers or tell me what i'm doing wrong? thanks! __________________ Detroit Drifting Co.- Detroit, MI

04-03-2010, 01:39 PM	#2848
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	^^^ When people have welded aluminum for me, it seems like they're modulating around 80-90 amps, and they always get the material suuuuuuuuuuper clean. Black soot is most likely dirty aluminum. Those that are actually good at it should probably chime in lol. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

04-03-2010, 05:00 PM	#2850
duffman1278 Post Whore! Join Date: Apr 2007 Location: Covina Age: 36 Posts: 2,844 Trader Rating: (8) Rides Gallery: duffman1278 Feedback Score: 8 reviews	When I practice TIG on aluminium, I brush my coupons real quick, nothing thorough then if I feel like it, I hit with some acetone. But that's for practice stuff. You can usually get away with just hitting the scrap piece with a Stainless brush and practicing. __________________