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Forum nameHandling/Suspension
Topic subjectfabricating a new crossmember
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i6&topic_id=28451
28451, fabricating a new crossmember
Posted by turbo8u, Dec-23-05 05:08 AM
in chasis fab im going to be working on a new front crossmember and underbody brace for the front suspension. this will be rigid as hell and will not only protect the engine and oil pan, considerably stiffen up the chasis but will clear the 2.4L oil pan if you want to do a swap and/or keep the balance shafts. if anything, you'll just be able to have a larger oil pan and less fabrication. ill be making it out of chromoly steel as a project and will be professionally welded and will fit perfect.

if anyone is interested, i can make a jig and make a few if anyone wants one let me know. PM me.
28452, RE: fabricating a new crossmember
Posted by DR1665, Dec-23-05 06:37 AM
That sounds pretty cool, Josh. Another idea that might be cool would be to put an aluminum aero plate under it that would smooth airflow at speed. You could put a couple extractor vents in it help pull air through the FMIC/radiator and backside of the engine to lower intake mani temps a hair. :shrug

Just an idea, there. (Extra credit!) :thumbsup
28454, RE: fabricating a new crossmember
Posted by hs_elrod, Dec-23-05 06:56 AM
Originally posted by DR1665
That sounds pretty cool, Josh. Another idea that might be cool would be to put an aluminum aero plate under it that would smooth airflow at speed. You could put a couple extractor vents in it help pull air through the FMIC/radiator and backside of the engine to lower intake mani temps a hair. :shrug Just an idea, there. (Extra credit!) :thumbsup


Correct me if I'm wrong but wouldn't an extractor under the car cause some amount of lift?

I'm a novice listen to what I say and make your own conclusion.
28461, RE: fabricating a new crossmember
Posted by turbo8u, Dec-25-05 09:37 AM
i dont know driggs, ill ask my teacher what he thinks about that.

thanks for the pm's, i responded to them all

i think im going to have them available in steel though to keep price down for you guys. we'll see.

inconel turbo manifolds, motor mounts, and crossmembers...just for you choads.

i :love welding.
28464, RE: fabricating a new crossmember
Posted by greygoose, Dec-26-05 08:49 PM
Sweetness.
28465, RE: fabricating a new crossmember
Posted by shazow1969, Dec-27-05 07:15 AM
I'm interested. But I need an Idea of cost range here. Let us know what we're looking at spending on it after you finish one and see what is going to have to go into making them.

-Kevin
28466, RE: fabricating a new crossmember
Posted by DarkOne, Dec-27-05 10:54 AM
get me pics and a price and we'll talk.
28467, RE: fabricating a new crossmember
Posted by extreme97nt, Dec-27-05 12:49 PM
If the price isn't ridiculous I will take one.

www.cnnmotorsports.com
28468, RE: fabricating a new crossmember
Posted by micyek, Dec-28-05 07:34 AM
Originally posted by extreme97nt
If the price isn't ridiculous I will take one.


me too.
28472, RE: fabricating a new crossmember
Posted by extreme97nt, Dec-31-05 02:34 AM
Any update yet?

www.cnnmotorsports.com
28473, RE: fabricating a new crossmember
Posted by turbo8u, Dec-31-05 11:19 AM
Originally posted by extreme97nt
Any update yet?


im still on vacation

ill be done with it within 6 weeks, i have a lot of things on my plate

28474, RE: fabricating a new crossmember
Posted by greygoose, Jan-01-06 06:32 PM
Originally posted by turbo8u
Originally posted by extreme97nt Any update yet?
im still on vacation ill be done with it within 6 weeks, i have a lot of things on my plate


Have a good one. Vacations are always well needed at this time of the year.

I'm very interested as well. Keeping the PT cruiser oil pan would be ideal for me (vs. fabrication of my own...).
28475, RE: fabricating a new crossmember
Posted by BumpinTalon, Jan-01-06 06:33 PM
I actually wanted to make a tubular one when I had that giant clunky stock one out... could probably save around 10-15 pounds if you used better material, and our cars are extremely nose-heavy, so every pound off the front end counts.
28487, RE: fabricating a new crossmember
Posted by OldGuy, Jan-07-06 02:00 AM
Originally posted by BumpinTalon
I actually wanted to make a tubular one when I had that giant clunky stock one out... could probably save around 10-15 pounds if you used better material, and our cars are extremely nose-heavy, so every pound off the front end counts.


Yes that woulod be good to shave some weight off the front end but if you take too much off, you will have issues keeping traction. Just my two cents...

Turby, Good to see you getting into welding. 4130 bracing? In the words of Dino, Pic and price and I may be interested as well...
28560, RE: fabricating a new crossmember
Posted by extreme97nt, Jan-19-06 09:49 AM
Still interesed so keeping the thread alive!

www.cnnmotorsports.com
28562, RE: fabricating a new crossmember
Posted by juan, Jan-19-06 04:07 PM
wish I had a skid-plate in place a few months ago when I cracked my oil pan...

Check these out (for subies tho):
http://www.writerguy.com/primitive/skid.htm

juan
28582, RE: fabricating a new crossmember
Posted by turbo8u, Jan-23-06 02:00 AM
edit: sorry only making two

reason being is im making control arms as well, and i dont have time to make more.

good luck though
28610, RE: fabricating a new crossmember
Posted by Keith2172, Jan-25-06 07:44 AM
Bah! Bring a cot to class and just live there for a while. That'll give you plenty of time to make them.
28622, RE: fabricating a new crossmember
Posted by extreme97nt, Jan-26-06 09:28 AM
Fu*k I need a goddamn tig welder! Any other welders out there willing to tackle this project?

www.cnnmotorsports.com
28626, RE: fabricating a new crossmember
Posted by VOTBLINDUB, Jan-28-06 09:16 AM
Originally posted by hs_elrod
Originally posted by DR1665 That sounds pretty cool, Josh. Another idea that might be cool would be to put an aluminum aero plate under it that would smooth airflow at speed. You could put a couple extractor vents in it help pull air through the FMIC/radiator and backside of the engine to lower intake mani temps a hair. :shrug Just an idea, there. (Extra credit!) :thumbsup
Correct me if I'm wrong but wouldn't an extractor under the car cause some amount of lift? I'm a novice listen to what I say and make your own conclusion.


i dont think so. if u make it so everything points down itll act like a spoiler at high speeds. most of us wont get to those speeds, so all it is is just goin to be drag
28627, RE: fabricating a new crossmember
Posted by Silv Blt, Jan-28-06 04:44 PM
Originally posted by VOTBLINDUB
Originally posted by hs_elrod
Originally posted by DR1665 That sounds pretty cool, Josh. Another idea that might be cool would be to put an aluminum aero plate under it that would smooth airflow at speed. You could put a couple extractor vents in it help pull air through the FMIC/radiator and backside of the engine to lower intake mani temps a hair. :shrug Just an idea, there. (Extra credit!) :thumbsup
Correct me if I'm wrong but wouldn't an extractor under the car cause some amount of lift? I'm a novice listen to what I say and make your own conclusion.
i dont think so. if u make it so everything points down itll act like a spoiler at high speeds. most of us wont get to those speeds, so all it is is just goin to be drag


if any air is being drawn from the grill and is being directed under the car, then yes, it will create a little lift. Just smoothing the underside without any extractor vents will, however, increase downforce because it will increase the speed of the air flowing under the car.
28628, RE: fabricating a new crossmember
Posted by turbo8u, Jan-28-06 09:47 PM
anyone have any good pictures of the inside of a 2gnt without any carpet or interior panels? im making a roll cage and id like to see what im working with and get some ideas for my mount plates.

close ups of the pinch welds on the rocker panels would definately help as well.

28629, RE: fabricating a new crossmember
Posted by 98starGS, Jan-29-06 09:36 AM
mines stripped.. i could get some this week when i get over the shop.