Largest shots used on 346/347???
01-25-2005, 07:03 AM
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Largest shots used on 346/347??? Looking at the Nitrous List I have been updating, I see the most being 300shot following closely by the ???? mystery shot users. So, whats the largest shot used for racing thats lasted? Is it only 300? *I say only loosely, knowing it takes a lot of reduced timing, extra fuel, and so on, not saying its plug-n-play easy* I know there was some conversation last year on users wanting to run humangus shots, and how much the LS1 can ingest.
Charlie
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01-26-2005, 01:05 AM
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Yep, I remember te debate going on with the fact an engine can only consume xx amount of air etc...but havent seen anyone pushing the envelope to confirm or deny amounts. Guess soon enough we will find out.
01-26-2005, 08:04 AM
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Not like 3 stages of Nitrous is easy to hide huh? I am just thinking on treking into uncharted ventures, or the road less traveled like everyone else of course. I am sure that our efficient LS1's can ingest at least 1hp worth of Nitrous per cubic inch, but what about a little more, say 1.25, or maybe more? Curious of course, not like I would be crazy enough to roll into the beams with two 15# bottles, running thru -6 lines, one branching off w/ a Y fitting, feeding a Dry 100, and Wet 100, and the other feeding a custom direct port progressively fed 250hp kick in the ***! Not me man, that would take something like custom fuel cell w/ race gas, 12* timing, 10.4:1 AFR, loose ring gaps, 1 7/8 headers maybe even stepped up, a Denny's Nitrous Ready DS, JB Fabbed 9" set up tight, and I think I will have to move the TA brace off the transmission tailhousing, I mean if I were planning on something like this 
But, achieving a 1.25 would require basically a enough nitrous to make an additional 433rwhp, based of cubic inches, and would require a nicely flowing set off heads and intake setup, say a 90mm type, and a cam setup for this, maybe something from Cam Motion or the likes tailored for mustang-loads of Nitrous hits. That would be a nice thing to achieve, IMHO.
01-26-2005, 08:17 AM
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I haven't heard about any bigger shot than Wade's old car, which I think was 400. But the reality is, there are guys on the big circuits that are heaving massive amounts of gas into their motors. I think it can be done with the right supporting equipment, just don't know of anyone on the board to go that route yet. Come on, show us the way 
01-26-2005, 08:33 AM
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Planning, planning, planning....Need to update the ole life insurance, or so the said 
Think when I get back and finally get the foged bottom, I am just going to start out small, like 250-300 and go from there. Will see.
Think when I get back and finally get the foged bottom, I am just going to start out small, like 250-300 and go from there. Will see. Trending Topics
01-26-2005, 09:46 AM
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im running around 225-250 threw my 347, i plan on going to 300-350 once i get the car to hook. from there im not sure what i will do. i want to go with a second stage, but i already have 4 noids (ls1tech limmit! DOH)
i would have no problem hitting my car with a 100 dry out of the hole then a 300-350 dp about 1-2 tenths out. just have to figure out how to do it with 4 noids. and i will have to freshen the motor by then also
i would have no problem hitting my car with a 100 dry out of the hole then a 300-350 dp about 1-2 tenths out. just have to figure out how to do it with 4 noids. and i will have to freshen the motor by then also
01-26-2005, 10:40 AM
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I plan on spraying my stock bottom end with 200-250. I have a good fuel system. Will use leaded 110 gas and have about 18 degrees of timming. Just waiting for some warm weather.
01-26-2005, 02:51 PM
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Originally Posted by LS1 BU
I plan on spraying my stock bottom end with 200-250. I have a good fuel system. Will use leaded 110 gas and have about 18 degrees of timming. Just waiting for some warm weather.
01-26-2005, 10:09 PM
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You can get away with leaded if mixed and not all the time, and mostly on qtr runs, just dont use it to cruise around on and not straight.
Noyzee- I am trying to keep it under 4 noids myself. Challenging yes. I wont be able to run 3 stages unless 2 are dry! I want to dry-tune for timing and fuel, and use it as the initial hit, with a 1sec delay 2 stage 2, and build time of 2 sec for the main hit. But, keeping the 4 noids, might have to alter it like:
Stage 1, wet, progressive time based 50-100% over 2sec with 150jets. Leaves the hole around 75 hit and ramps up to the 150.
Stage 2, DP, delayed 2 sec and dumping 250 to 300. As soon as the wet was at full, the DP would flow and back that *** up! Going on the smaller side of it, that put it around 400, which I am sure has been done, just more secretively. Interesting to see the effects, outcome, and carnage that may come from this. Back to the planning boards!
Noyzee- I am trying to keep it under 4 noids myself. Challenging yes. I wont be able to run 3 stages unless 2 are dry! I want to dry-tune for timing and fuel, and use it as the initial hit, with a 1sec delay 2 stage 2, and build time of 2 sec for the main hit. But, keeping the 4 noids, might have to alter it like:
Stage 1, wet, progressive time based 50-100% over 2sec with 150jets. Leaves the hole around 75 hit and ramps up to the 150.
Stage 2, DP, delayed 2 sec and dumping 250 to 300. As soon as the wet was at full, the DP would flow and back that *** up! Going on the smaller side of it, that put it around 400, which I am sure has been done, just more secretively. Interesting to see the effects, outcome, and carnage that may come from this. Back to the planning boards!
01-27-2005, 12:51 AM
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Originally Posted by CAT3
Looking at the Nitrous List I have been updating, I see the most being 300shot following closely by the ???? mystery shot users. So, whats the largest shot used for racing thats lasted? Is it only 300? *I say only loosely, knowing it takes a lot of reduced timing, extra fuel, and so on, not saying its plug-n-play easy* I know there was some conversation last year on users wanting to run humangus shots, and how much the LS1 can ingest.
Charlie
Charlie
only because my nitrous guage was not reading correctly 
. We were @ 300 for abt. 8 mo. before we decided to up-jet the car to a 350. When we thought my guage was reading 900 psi it was actually around 1350 psi . An expensive lesson to learn . All on a heads \cam & stock bottom end . I think that anything more than a 300 shot with a nozzle kit you'll run into fuel puddling in the cyliders in front thus leaning out the rear cylinders . Remeber liquid is heavier than a gas . Last edited by MRI-TEK; 01-27-2005 at 01:02 AM.
01-27-2005, 01:50 AM
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I will definately be doing this experiment on a forged bottom, using no more than 200 on the wet side for the same reason of puddling and ramping up/delaying as much as possible....at least until I get the feel for it Then reel it in, 200 at line, and well, more after the 60' mark!
Thats pretty good though on a stock bottom. BTW, were you using the 5724-8 plugs or what? (think thats the # for a step below the TR6??). Total timing also if you dont mind. I have this thing the rule of thumb (-2*/50hp shot) only applies to about 150shot, then things tend to get a little more critical. So I am thinking much less timing.
Then reel it in, 200 at line, and well, more after the 60' mark! Thats pretty good though on a stock bottom. BTW, were you using the 5724-8 plugs or what? (think thats the # for a step below the TR6??). Total timing also if you dont mind. I have this thing the rule of thumb (-2*/50hp shot) only applies to about 150shot, then things tend to get a little more critical. So I am thinking much less timing.
