Drop (leak) down test (nitrous user)
#1
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Drop (leak) down test (nitrous user)
2011 ISF with nitrous and 35,000km. I have been running nitrous for 4 years now and 2 years of spraying from launch. I had lexus do a drop down test to get an idea if I am doing any damage to the car at all....
Cyl 1,3,4,5,6 are all 2%
Cyl 2 is 5%
Cyl 7,8 is 3%
I blew a spark plug in Cyl 2 and it had to be replaced so I had them so the test for fun. The piece of spark plug may have gone down and scratched a side wall (possibly). So maybe that's why Cyl 2 is 5%?
Seems she is holding up well to the abuse I am putting her through.
1-5% on engines in Great condition
5-10% is Good condition
10-15% is some wear and tear
15-20% is you need to tear it down and replace.
😎😎😎
Just some good info for us nitrous users! Keep going hard!!!
Cyl 1,3,4,5,6 are all 2%
Cyl 2 is 5%
Cyl 7,8 is 3%
I blew a spark plug in Cyl 2 and it had to be replaced so I had them so the test for fun. The piece of spark plug may have gone down and scratched a side wall (possibly). So maybe that's why Cyl 2 is 5%?
Seems she is holding up well to the abuse I am putting her through.
1-5% on engines in Great condition
5-10% is Good condition
10-15% is some wear and tear
15-20% is you need to tear it down and replace.
😎😎😎
Just some good info for us nitrous users! Keep going hard!!!
#6
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#8
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Always good to have a woman who enjoys speed!
#9
Those are great numbers!
Are you just running their recommended jet settings to get a 150 shot?
I have Nitrous express myself, but I haven't been able to find a place that has nitrous.. Closest place that I've found was a shop in Las Vegas, thats about 7 hours from me (Reno Nevada)
How many Lbs of nitrous have you gone through in those 2 years if you had to guess?
What progressive controller are you using?
Are you just running their recommended jet settings to get a 150 shot?
I have Nitrous express myself, but I haven't been able to find a place that has nitrous.. Closest place that I've found was a shop in Las Vegas, thats about 7 hours from me (Reno Nevada)
How many Lbs of nitrous have you gone through in those 2 years if you had to guess?
What progressive controller are you using?
#11
Lead Lap
iTrader: (2)
Nice. ISF with 500whp is how it should be! 150 shot has to be wet, but i agree you want a step colder plug unless your using the SAFE cell from NX and are running e85/racegas. Still better safe than sorry. Careful injecting when in low rpms high gears, could **** the trans. Just like a turbo, dont lug the trans with the engine power, it wont handle it.
~Dv8
~Dv8
#12
Tech Info Resource
iTrader: (2)
Me neither. Leak down all the time, never "drop" down. I've done a few of them myself over the years.
FWIW, I rebuild at 10%. IMHO that's really bad. I would expect oil consumption at 20% to be close to fuel consumption...
FWIW, I rebuild at 10%. IMHO that's really bad. I would expect oil consumption at 20% to be close to fuel consumption...
#13
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Thread Starter
Those are great numbers!
Are you just running their recommended jet settings to get a 150 shot?
I have Nitrous express myself, but I haven't been able to find a place that has nitrous.. Closest place that I've found was a shop in Las Vegas, thats about 7 hours from me (Reno Nevada)
How many Lbs of nitrous have you gone through in those 2 years if you had to guess?
What progressive controller are you using?
Are you just running their recommended jet settings to get a 150 shot?
I have Nitrous express myself, but I haven't been able to find a place that has nitrous.. Closest place that I've found was a shop in Las Vegas, thats about 7 hours from me (Reno Nevada)
How many Lbs of nitrous have you gone through in those 2 years if you had to guess?
What progressive controller are you using?
i feel that up until 10% or so, I am fine to push her as hard as possible. After that I will back off and not spray right from idle. I am pretty satisfied with the results after pushing this engine to the limits since the day I bought it.
#14
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iTrader: (3)
Those are great numbers!
Are you just running their recommended jet settings to get a 150 shot?
I have Nitrous express myself, but I haven't been able to find a place that has nitrous.. Closest place that I've found was a shop in Las Vegas, thats about 7 hours from me (Reno Nevada)
How many Lbs of nitrous have you gone through in those 2 years if you had to guess?
What progressive controller are you using?
Are you just running their recommended jet settings to get a 150 shot?
I have Nitrous express myself, but I haven't been able to find a place that has nitrous.. Closest place that I've found was a shop in Las Vegas, thats about 7 hours from me (Reno Nevada)
How many Lbs of nitrous have you gone through in those 2 years if you had to guess?
What progressive controller are you using?
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msekanha
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02-28-23 10:47 AM