What will spray add?, Time reduction wise?
Thread Starter
Melting Slicks
Joined: May 2004
Posts: 2,524
Likes: 10
From: Lufkin Texas
St. Jude Donor '05-'06
What will spray add?, Time reduction wise?
I was just reading Joer350's thread about getting into 12s and 65Z01's formula and was wondering what spraying say 150 would do for my L98 with the little mods in my sig.?? 
I've been timed unofficially in the low 13's.
[Modified by skateparkdave, 2:22 AM 7/4/2004]
I've been timed unofficially in the low 13's.[Modified by skateparkdave, 2:22 AM 7/4/2004]
Race Director
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Re: What will spray add?, Time reduction wise? (65Z01)
On a summer day my mild 350 went from 13.20 @ 108 to 11.70 @ 119. My 383 went from 12.40 to 10.90 @ 129. 1.5 seconds is right on the money. Took a while to figure out how to hook all that power up. You will get an easy second if you have troubles. You will like the nos. Most fun you can have with your clothes on. 
Elite Torch Red Member
Joined: Sep 1999
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Re: What will spray add?, Time reduction wise? (skateparkdave)
General rule of thumb is 1 second +/- for every 100 HP.
Le Mans Master
Joined: Mar 2001
Posts: 9,464
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From: Modesto CA
Re: What will spray add?, Time reduction wise? (Pete K)
On a summer day my mild 350 went from 13.20 @ 108 to 11.70 @ 119.
Le Mans Master
Joined: Mar 2002
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From: Castro Valley Calif.
St. Jude Donor '03 thru '26
Re: What will spray add?, Time reduction wise? (Mr Mojo)
General rule of thumb is 1 second +/- for every 100 HP.
I did a 100 shot, (along with gears) and I'm sure it's a mid 12s car now 
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Race Director
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Re: What will spray add?, Time reduction wise? (TIMSPEED)
so if I ran a 13.0 now, and sprayed a 150bhp nitrous kit (125rwhp), I could run 11.5's?
Le Mans Master
Joined: Mar 2001
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From: Modesto CA
Re: What will spray add?, Time reduction wise? (Pete K)
so if I ran a 13.0 now, and sprayed a 150bhp nitrous kit (125rwhp), I could run 11.5's? Absolutely. If you hook it up,hit the button before the 2 nd gear shift and nothing flies out easy to do. If you hit the botton just after the 2nd gear shift you will likely pick up 1.2 seconds and 10 mph.
Drifting
Joined: Oct 2003
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From: CALGARY ab
Re: What will spray add?, Time reduction wise? (TIMSPEED)
so if I ran a 13.0 now, and sprayed a 150bhp nitrous kit (125rwhp), I could run 11.5's?
Race Director
Joined: Feb 2004
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Re: What will spray add?, Time reduction wise? (TIMSPEED)
When you bring on the spray makes all the difference in the et. too soon and bad happens.If you are lucky you only blow off the tires and ruin the run. NOS is a love it or hate it thing. After 50 plus bottles I still love it. I am sure my opinion will change if stuff blows up. The price you pay to dance with the devil. 
Le Mans Master
Joined: Mar 2001
Posts: 9,464
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From: Modesto CA
Re: What will spray add?, Time reduction wise? (korvette4u)
nos is an easy way to get lots of horse power, keep in mind the expense of a new motor....u should do internal mods pistons, rings for sure..
Race Director
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Re: What will spray add?, Time reduction wise? (TIMSPEED)
My motor is cast junk. I dont worry so much about blowing up the motor. More worried about the trans and drivetrain. Motor was built dirt cheap. You are right though run it rich with minimal timing and u will be ok. Probably
Le Mans Master
Joined: Mar 2001
Posts: 9,464
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From: Modesto CA
Re: What will spray add?, Time reduction wise? (Pete K)
You are right though run it rich with minimal timing and u will be ok. Probably
Drifting
Joined: Oct 2003
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From: CALGARY ab
Re: What will spray add?, Time reduction wise? (TIMSPEED)
You are right though run it rich with minimal timing and u will be ok. Probably
At 100-150hp levels, I don't think it's THAT extreme, now, if it were 250+ THEN I'd start worrying.
At 100-150hp levels, I don't think it's THAT extreme, now, if it were 250+ THEN I'd start worrying.
the pistons were forged. ( i think)can you tell from the marks on the inside?
[Modified by korvette4u, 10:31 AM 7/4/2004]
[Modified by korvette4u, 10:38 AM 7/4/2004]
[Modified by korvette4u, 10:42 AM 7/4/2004]
Le Mans Master
Joined: Mar 2001
Posts: 9,464
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From: Modesto CA
Re: What will spray add?, Time reduction wise? (korvette4u)
timspeed: you mean broken ring lands like this? this happen last week with 150shot @ 3000rpm....using mallory hyfire electronic controller with spark retarded 6deg.. i rebuilt it ...this week, 32 hours total time from tare down to rebuild
the pistons were forged. ( i think)can you tell from the marks on the inside?
the pistons were forged. ( i think)can you tell from the marks on the inside?
Thread Starter
Melting Slicks
Joined: May 2004
Posts: 2,524
Likes: 10
From: Lufkin Texas
St. Jude Donor '05-'06
Re: What will spray add?, Time reduction wise? (TIMSPEED)
Wow! What a response. I asked a question and went to bed and woke up and it's turned into a nice thread 
You guys are great. My next question to 65Z01 was going to be is 150chp safe? And I already have an answer. But I've heard some guys say "dont do it".."too hard on motor" and others say "cheapest, easiest way to cut a second".."risk no higher than other build ups"..so I'm like "hmmmm?".. isn't that just racing though?
So do you guys think I should go with 100 to play it kind of safe or is 150 ok if not abused? I only plan to use it occasionaly. Also, we just recently got an official track near by and I'm about to go see what it's all about but I dont know jack about bracket racing and I also want to know if nos will put me into a more modified class??All I've been doing up til now has been at a bootleg old airstrip that the private property owner lets us play on..it's kind of underground..but legal.
Thanks to all
You guys are great. My next question to 65Z01 was going to be is 150chp safe? And I already have an answer. But I've heard some guys say "dont do it".."too hard on motor" and others say "cheapest, easiest way to cut a second".."risk no higher than other build ups"..so I'm like "hmmmm?".. isn't that just racing though? So do you guys think I should go with 100 to play it kind of safe or is 150 ok if not abused? I only plan to use it occasionaly. Also, we just recently got an official track near by and I'm about to go see what it's all about but I dont know jack about bracket racing and I also want to know if nos will put me into a more modified class??All I've been doing up til now has been at a bootleg old airstrip that the private property owner lets us play on..it's kind of underground..but legal.
Thanks to all
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Re: What will spray add?, Time reduction wise? (skateparkdave)
I am far from being an expert on nitrous, but unless you have enough juice to last the day, I wouldn't use it for bracket racing. When we race we can go as many as a dozen runs between timeshots and rounds of elimination.
Some bracket guys will have a 50 shot on board to help them catch up if they spin off the line. They use it at the top end of the track.
My buddy put a 125 shot on his 120,000 mile LS1 and has had no problems until his gauge went bad and he had more presure than indicated and he blew his supercharger right off the engine!
Some bracket guys will have a 50 shot on board to help them catch up if they spin off the line. They use it at the top end of the track.
My buddy put a 125 shot on his 120,000 mile LS1 and has had no problems until his gauge went bad and he had more presure than indicated and he blew his supercharger right off the engine!