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DRR Pro |
I'm thinking of going to onboard air system - just wondering if anyone has had consistency issues if the pressure varies due to the compressor cycling? Most kits indicate "on" at 85-90 psi and "off" at 100-105 psi. Just wondering about affecting the stop opening speed? ![]() | ||
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DRR Pro |
Pivot, We have them on several cars, all give excellent service. Larry Woodfin | |||
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DRR Sportsman![]() |
Put a 80lb regulator on it and it will always be the same pressure at the shifter and throttle stop. Working for the Weekend!!!! Fordyce Motorsports | |||
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DRR S/Pro |
Hi Vern. My concern about using air as opposed to C02 is condensation (water) in the air, that can’t do a throttle stop, shifter, or worse yet a parachute release solenoid, any good, (especially the latter). I’m not willing to take that risk God knows there is enough that can go wrong. That said, finding a CO2 fill station that will fill a 10 ounce bottle has become problimatic, no one near me wants to fill them for a reasonable charge. I am going to buy the bottle and equipment to fill them myself, $10 to fill a 10ounce bottle is ridiculous. Bob | |||
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DRR Pro |
Thought about the condensation issue, sometimes the car sits for a while, and just from the amount of water I drain out of the shop compressor it could be a problem. At least the Co2 is clean and relatively dry? | |||
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DRR S/Pro |
C02 is as dry at the Saraha desert in Summer. Bob | |||
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DRR S/Pro |
Ran a compressor for many years on three different cars and never one failure. On throttle stop , chute and shifters .... J.R. Baxter ""Fathom the hypocrisy of a Government that requires every citizen to prove they are insured ..but not everyone must prove they are a citizen." 2025 Miller Rolla Competition Engines ProCharger Hoosier Tires Abruzzi | |||
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DRR Pro |
Pivot, one reason is already posted above, filling the 10 oz bottles is inconvenient at best. If I were to change back to the 10 oz bottles I would buy the proper equipment to refill them in-house from a large tank. There would be some initial expense but once set up one large bottle would refill the small ones for years. I think it would be just fine to have two spare bottles in addition to the one in the car. I think doing so would be a good solution. Larry Woodfin | |||
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DRR S/Pro![]() |
Filling a 10oz Co2 bottle is a non issue for me. Mine will last most of the season using it for shifting and SLE. I keep spare in the trailer and local welding shop fills it for $10. The biggest atvantage I see for having an on board compressor is having it to fill your tires in the lanes if needed. | |||
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DRR Sportsman![]() |
FYI for the guys that have access to nitrous. Nitrous works just fine, and I have been using it for years now. I actually just top of my 10oz bottle with a low nitrous bottle before I refill it. Put the 10oz bottle in the freezer for a couple hours and hook them together and open the big bottle valve first, then the small one. Even done it at the track when I ran out. Jeremiah Hall | |||
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DRR Sportsman |
If the tank is full I can cycle my throttle stop 11 times on my dragster and 9 on my camaro before the compressor comes back on to refill the tank.. Rick Huffman Accelerated Graphics Why was everyone Kung Fu Fighting? | |||
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DRR Pro |
I’m considering converting to air and using 10 oz co2 bottles now. What brands or models do you like and are they aluminum tanks ?? | |||
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DRR Pro |
Mark, I buy the "Air Armed" from K & R Larry Woodfin | |||
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DRR Sportsman![]() |
I’ve run air compressors on my stuff for probably 18 years. My current dragster has the same punp I put on it in 2003 when the car was new, and my door car has one that was off a 99 model car we sold. I use a 160 lb pressure switch and regulate to 100 psi. Condensation has never been an issue and I wouldn’t dream of running CO2. I dont use an external tank, so mine will cycle when different air functions occur but never has had any issues with consistency. The Pull-Out....for when you want to work smarter, not harder!!! | |||
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DRR Pro |
Got the stuff ordered, we'll see how it goes. I'm just so done will filling those ******* bottles. Thanks for all the insight ![]() | |||
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DRR Pro |
Huh. Bas tard bottles. | |||
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DRR Sportsman |
I bought a large C02 bottle around 2002 or 3 to fill my 10 oz. bottles for my wagon and the dragster. This host bottle cost me just over $100.00 I have filled at least 3 or 4 bottles of mine every year since. It's been 15 years since I bought it and these days I set it out in the sun for a bit so I can get 1000 psi in the little bottles and refill them when they get down close to 500 lbs. When I was running the dragster I kept the bottle in my trailer and would fill a friends 10 oz bottle here and there for a burger. When I'm unable to get at least 700 lbs I may go to the welding supply and get a fresh host bottle which was less than $20.00 with exchange. I quit taking the big bottle to the track these days and just carry two spare 10 oz bottles for back ups. | |||
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DRR Pro |
Hero, as a public service, I request you post photos of the hardware required to transfer from big bottle to small bottle. Also, how do you determine when the 10 oz bottle is full? Larry Woodfin | |||
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DRR Sportsman |
I have this and a 20# tank I purchased off of Craigslist. https://www.amazon.com/Trinity...ipping/dp/B00NU9ITN8 Eric Macchiaroli S/R1355 80 Arrow | |||
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DRR Pro![]() |
A scale is an important part of this equation. You need to know the empty weight and add 9oz. You can add 10oz, but you chance popping off in the heat. ![]() ΜΟΛΩΝ ΛΑΒΕ | |||
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