1/2 OR 5/8 airline? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DM310 · 04-25-2005, 01:43 PM

I am about ready to mount my bags and run the lines. Now heres my prob. I am running 8 1/2 valves fill/dumps, 2 comps and 2 5 gallon tanks. The airline I have now is 1/2. Should I just upgrade to the 5/8 to take full avantage of the valves? I herd it would be a little harder to control but I could bounce the car if I wanted to

Is any one running 5/8 line here?

Izzy · 04-25-2005, 02:13 PM

THe 5/8 o.d. line is very hard to bend and personally I think the 1/2" valves with 1/2" line is too fast for a daily driver.

DM310 · 04-25-2005, 02:31 PM

Its a good thing this is not my daily driver then....... This is my fun truck for the weekends

fastbagged68 · 04-25-2005, 02:58 PM

If you are looking to hop alot then sure run 5/8" line but get ready to pay for the fittings. One of our customers truck gets off the ground with only 160psi on 1/2 line and 1/2 parker valves. Our shop truck with 140psi would hop off the ground a couple inches with 1/2 blitzluft valves and 1/2 line. But it had no motor our tranny. 1/2" is plenty of airline unless you are hopping for height!

bigred66 · 04-25-2005, 03:18 PM

My buddy runs 5/8 on his f150 its fast but he don’t have any problems but I think he runs low psi it is his only vehicle ....I will be running it as well if I ever have time to put it on

DM310 · 04-25-2005, 04:09 PM

1/2" sounds good enough for me...... thanks guys. keep a eye out for some pics

BK · 05-08-2005, 04:36 AM

1/2" lines 3/8" valves hop my front about 2", and the rear almost leaves the damn ground at 175 PSI. 1/2" is good!!!

KdawgS10 · 05-08-2005, 09:47 AM

id run the 5/8ths and use inline ball vlaves to slow it down to daily drive.

you can allways go slower. but it gets mutch harded to go faster.

cojnit · 05-10-2005, 02:47 PM

arent you limited by the smallest size in the chain? like on a 5/8th with a 1/2 valve you would only be able to go as fast as the 1/2? I have no clue just asking for info.

DM310 · 05-10-2005, 02:57 PM

The i/d of the 5/8 is 1/2

cojnit · 05-10-2005, 03:43 PM

gotcha

04-25-2005, 01:43 PM	#1
DM310 Registered User Join Date: Jan 2005 Location: Los Angeles Posts: 256	1/2 OR 5/8 airline? I am about ready to mount my bags and run the lines. Now heres my prob. I am running 8 1/2 valves fill/dumps, 2 comps and 2 5 gallon tanks. The airline I have now is 1/2. Should I just upgrade to the 5/8 to take full avantage of the valves? I herd it would be a little harder to control but I could bounce the car if I wanted to Is any one running 5/8 line here?

04-25-2005, 02:13 PM	#2
Izzy Trucker. Join Date: Nov 2002 Location: Fort Worth, TX Posts: 1,364	THe 5/8 o.d. line is very hard to bend and personally I think the 1/2" valves with 1/2" line is too fast for a daily driver. Last edited by Izzy; 04-25-2005 at 02:13 PM.

04-25-2005, 02:31 PM	#3
DM310 Registered User Join Date: Jan 2005 Location: Los Angeles Posts: 256	Its a good thing this is not my daily driver then....... This is my fun truck for the weekends __________________ 66 C10 (under construction) 1.5" crossmember drop 2" Z'ed frame 8" rear notch Watts-link Bagged DJM 3" spindles

04-25-2005, 03:18 PM	#5
bigred66 Registered User Join Date: Mar 2005 Location: Pineville, Mo Posts: 123	My buddy runs 5/8 on his f150 its fast but he don’t have any problems but I think he runs low psi it is his only vehicle ....I will be running it as well if I ever have time to put it on __________________ Atom (bigRed66) 1966- C10 1995- Wide Body Talon 1987- Dodge Raider (4 sale) 2000- 4-door Nissan Frontier 2003- Ford Focus (wife)

04-25-2005, 04:09 PM	#6
DM310 Registered User Join Date: Jan 2005 Location: Los Angeles Posts: 256	1/2" sounds good enough for me...... thanks guys. keep a eye out for some pics __________________ 66 C10 (under construction) 1.5" crossmember drop 2" Z'ed frame 8" rear notch Watts-link Bagged DJM 3" spindles

04-25-2005, 02:58 PM	#4
fastbagged68 Registered User Join Date: Jun 2002 Location: Tri Valley California Posts: 792	If you are looking to hop alot then sure run 5/8" line but get ready to pay for the fittings. One of our customers truck gets off the ground with only 160psi on 1/2 line and 1/2 parker valves. Our shop truck with 140psi would hop off the ground a couple inches with 1/2 blitzluft valves and 1/2 line. But it had no motor our tranny. 1/2" is plenty of airline unless you are hopping for height!

05-08-2005, 04:36 AM	#7
BK BK Built Join Date: Aug 2004 Location: Oroville, WA Posts: 478	1/2" lines 3/8" valves hop my front about 2", and the rear almost leaves the damn ground at 175 PSI. 1/2" is good!!!

05-08-2005, 09:47 AM	#8
KdawgS10 keller Join Date: Mar 2005 Location: st clair MO Posts: 68	id run the 5/8ths and use inline ball vlaves to slow it down to daily drive. you can allways go slower. but it gets mutch harded to go faster. __________________ 83 1ton 4door dually, 350/700r4 99 S10 2.2/5speed bagged. traded for the dually 91 S10, 2.5/5speed juiced 87 3/4 4x4, 350/4speed 89 S10 long bed , 2.8/5speed 65 chevy short bed stepside, 327/3speed 97 neon acr, 2.0 dohc 5speed DD

05-10-2005, 02:47 PM	#9
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	arent you limited by the smallest size in the chain? like on a 5/8th with a 1/2 valve you would only be able to go as fast as the 1/2? I have no clue just asking for info. __________________ Got "the Midas Touch!"

05-10-2005, 02:57 PM	#10
DM310 Registered User Join Date: Jan 2005 Location: Los Angeles Posts: 256	The i/d of the 5/8 is 1/2 __________________ 66 C10 (under construction) 1.5" crossmember drop 2" Z'ed frame 8" rear notch Watts-link Bagged DJM 3" spindles

05-10-2005, 03:43 PM	#11
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	gotcha __________________ Got "the Midas Touch!"

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