Who thinks I'll break 12's n/a and 11's on spray?

silver rhyno

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drop sway bar..but no other weight reduction..not sure about the DA i didnt check it..these numbers are from last saturday and there was a 10mph head wind
 

Blackbird1084

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Something is wrong with the top link? What track do you race at? I'm just trying to gather all the info I can so I can be safe on my setup and know what to expect.
 

Blackbird1084

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That's pretty good. Your da's that day were 949 around the time of your run. That's damn good air.
 

silver rhyno

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humidity is the major problem around here but its still early in the season..i think i can get another tenth before the weather goes bad...like i said there was a 10mph head wind that day and my slicks was brand new..once i get them broke in and get a little more aggresive with the launch i should have it..
 

Blackbird1084

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Hey rhyno you said you had a weak bottle. What did you mean? Low psi or low nitrous in the bottle. A zex kit is pretty much useless below 750 psi. I haven't had a chance to run this year with as much psi as I want (1025-1050). But I hope to change that this weekend if I dont work. I'll be testing with zex's 150 jets (67n/38f).
 

silver rhyno

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low nitrous..i had 950psi...but the bottle had 3 or 4 75 shot passes...so when i ran the 125 shot the bottle im sure was less than half full..just so you know we weighed a new bottle then made a dyno pull with the 125 jets the re-weighed the bottle 2 lbs loss..so if your goin to run 150 shot you might get 3 passes out of it..i would bring extra bottles..
 

Blackbird1084

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Actually it would have had over 6lbs left in it. I have ran over 12 passes on one bottle on a 75 shot. I usually get 9 1/2-10 passes on zex's 125 shot using a standard 10lb bottle.
 

Blackbird1084

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A dyno run is usually longer than a pass at the track depending on the car. I ran zex's 150 jets while dataloging/tuning and made about 7 full pulls from 1st to 120mph in fourth.
 

silver rhyno

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Actually it would have had over 6lbs left in it. I have ran over 12 passes on one bottle on a 75 shot. I usually get 9 1/2-10 passes on zex's 125 shot using a standard 10lb bottle.
12 passes on a 75 shot then almost 10 on a 125shot thats almost double the nitrous and your only losses 2 passes on a bottle...do you see whats wrong with this?
 

Blackbird1084

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I know it looks messed up. But I've got 12 slips from the same day on the 75 shot and I only have one bottle. Plus look at what I said about running the 150 jets. I'm getting just slightly over half the pulls that I was on the 75. Plus I don't have a heater yet. The more pressure your system has the more nitrous you use during a pull. As bottle pressure drops the less you use. On the 75 shot I made more back to back runs than with the 125 as I allowed for cool down time to check plugs with the 125. The bottle would be down to 750psi during the last 1-2 runs on the 125 shot. Those runs are always the slowest of the day. The fastest I have gone through a bottle was 8 pulls with the pressure steady at 1075 down to 1025 during a hot day.
 

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