JoeZ vs Injen
#16
Lexus Champion
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If you listen at 1:05 of this video of our moderator JavyLSU's dyno, (I could be totally wrong here) but I believe he has/had a JoeZ intake in this video.
That noise you hear at that point is the intake noise difference.
http://youtube.com/watch?v=nMOmrO837jc
That noise you hear at that point is the intake noise difference.
http://youtube.com/watch?v=nMOmrO837jc
#17
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If you listen at 1:05 of this video of our moderator JavyLSU's dyno, (I could be totally wrong here) but I believe he has/had a JoeZ intake in this video.
That noise you hear at that point is the intake noise difference.
http://youtube.com/watch?v=nMOmrO837jc
That noise you hear at that point is the intake noise difference.
http://youtube.com/watch?v=nMOmrO837jc
#19
I had the injen, loved the sound and dyno showed an increase in rwhp. But the thing is that in reality on the road low end (1st gear) was great, but anything after that (2nd, 3rd, 4th) suffered form it. So rwhp gain YES, real 1/4 mile time lost YES.
#20
Tech Info Resource
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You mean you dyno'd more but lost 1/4 mile time? So, more than likely there is no correlation between your dyno and real world performance? Say it isn't so!
#21
What i am thinking that was happening was the Injen intake was making good RWHP at low end because of the less restriction. But when it got to higher speed it felt like the engin was being sufficated by to much air and the computer was compensating for it. So I put down more rwhp because on the dyno there is a consistent amount of air. I posted dyno sheets before and showed 171 rwhp compared to stock at 164 rwhp in cooler weather.
#22
Lexus Champion
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I'm not a supporter of any SRI's that are available for our cars, but I do want to make a defense about them. When people say that they feel like they gained power here, and lost power there ... they really have no clue whether they gained or lost overall. They are really only saying that the shape of the torque curve changed. Dyno testing is worthless for intakes because of the open / closed / fanned hood thing. Track testing is nice, but it doesn't do jack jimminy crap for factoring in differendes in weather.
Last edited by Gernby; 02-09-08 at 07:34 PM.
#23
Tech Info Resource
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What i am thinking that was happening was the Injen intake was making good RWHP at low end because of the less restriction. But when it got to higher speed it felt like the engin was being sufficated by to much air and the computer was compensating for it. So I put down more rwhp because on the dyno there is a consistent amount of air. I posted dyno sheets before and showed 171 rwhp compared to stock at 164 rwhp in cooler weather.
Once again, lots of driving impressions, and very little measurable substance.
If you lost time in the 1/4 mile, you made less power. Period. Whether the problem was weather or the intake is another discussion, but the truth is, if you went slower at the track, you made less power than the last time you were there. There can be no question about that.
#24
Lexus Fanatic
iTrader: (1)
While I agree with 99.9% of what you just said there, I'd look more at losing trap speed in the 1/4 to mean less power than losing ET.
ET can easily be changed by things having nothing to do with power at the wheels, including suspension, vehicle weight, tires, amount of VHT on the track, etc...
ET can easily be changed by things having nothing to do with power at the wheels, including suspension, vehicle weight, tires, amount of VHT on the track, etc...
#26
Tech Info Resource
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While I agree with 99.9% of what you just said there, I'd look more at losing trap speed in the 1/4 to mean less power than losing ET.
ET can easily be changed by things having nothing to do with power at the wheels, including suspension, vehicle weight, tires, amount of VHT on the track, etc...
ET can easily be changed by things having nothing to do with power at the wheels, including suspension, vehicle weight, tires, amount of VHT on the track, etc...
#28
too true and yet so many clowns out there just rep their times not trap speed
#29
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#30