Took advice: Engine covers
09-12-07, 11:10 AM
#16
This is most definitely a placebo effect since the covers could not contribute for better OR worse to performsnce. Well, I guess you could make the argument that the extra weight makes a difference, but it would take very special timing gear to measure it. The front cover does not hinder the intake at all, and might actually help it since the cover will reduce the amount of hot air it ingests from the engine bay.
09-12-07, 11:18 AM
#17
CL Folding Freak
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Stop being internet chair performance analysts. Go pop off that front piece above the air intake and go drive it around your block. It’s a friggen 2 second mod lol. First thing I will hear from you is “oh ****, I can’t believe how restricting to the air intake that thing is.”
I can see that some people need pictures, Ill take a few when I get home so one can see how restricted the intake is with that front plastic peice on.
I can see that some people need pictures, Ill take a few when I get home so one can see how restricted the intake is with that front plastic peice on.
Last edited by y2ks2k; 09-12-07 at 11:22 AM.
09-13-07, 06:22 AM
#18
Lead Lap
i took the remaining 3 off last night....and i can say for sure i noticed a difference in performance....
as far as the sound goes ill agree rs/ss that the sound may have been deflected from the cabin thus making it sound louder from the cabin....
y2ks2k ...did u notice any mpg differences......before i used to get roughly 35.5ish when i took the exit for school...(always reseting when i started cruising..roughly same location)....today same strech of road i got 36.9....will try next few days to see if i get roughly the same number...
as far as the sound goes ill agree rs/ss that the sound may have been deflected from the cabin thus making it sound louder from the cabin....
y2ks2k ...did u notice any mpg differences......before i used to get roughly 35.5ish when i took the exit for school...(always reseting when i started cruising..roughly same location)....today same strech of road i got 36.9....will try next few days to see if i get roughly the same number...
09-13-07, 08:34 AM
#19
Lexus Champion
Wow, sorry guys but I highly doubt that removing those pieces of plastic do anything for anything. They not weigh enough to be a weight reduction, they could not dampen sound enough to noticeably affect engine noise, they do not isolate enough to cause the engine to run hotter and they do not block any air flow to feed the engine more air.
I am sure Lexus just put them there for looks and to scare some people off from doing anything to their car which aids in convincing them to return to the dealer and pay them to do whatever needs to be done.
I am sure Lexus just put them there for looks and to scare some people off from doing anything to their car which aids in convincing them to return to the dealer and pay them to do whatever needs to be done.
09-13-07, 09:36 AM
#21
CL Folding Freak
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i took the remaining 3 off last night....and i can say for sure i noticed a difference in performance....
as far as the sound goes ill agree rs/ss that the sound may have been deflected from the cabin thus making it sound louder from the cabin....
y2ks2k ...did u notice any mpg differences......before i used to get roughly 35.5ish when i took the exit for school...(always reseting when i started cruising..roughly same location)....today same strech of road i got 36.9....will try next few days to see if i get roughly the same number...
as far as the sound goes ill agree rs/ss that the sound may have been deflected from the cabin thus making it sound louder from the cabin....
y2ks2k ...did u notice any mpg differences......before i used to get roughly 35.5ish when i took the exit for school...(always reseting when i started cruising..roughly same location)....today same strech of road i got 36.9....will try next few days to see if i get roughly the same number...
09-13-07, 02:00 PM
#25
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humm, im pretty sure this does help sound a bit. the main engine cover has so much foam under it, im sure it absorbs some sound. in terms of if its a huge diff, beats me. i tired it last night n i could hear the lower rpm's alot easier but im sure if u just want sound ur better off just getting a exhaust.
09-13-07, 02:34 PM
#27
Lexus Fanatic
This thread is stOOpid...
Want some real performance? On your tires there are the rubber pin things that stick out from when the tire was made right, well get some nail clippers and clip those off, this mod is for aerodynamics not to mention less weight of the rotating mass. EASY 5hp per wheel.
Want some real performance? On your tires there are the rubber pin things that stick out from when the tire was made right, well get some nail clippers and clip those off, this mod is for aerodynamics not to mention less weight of the rotating mass. EASY 5hp per wheel.
09-13-07, 03:34 PM
#30
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It's hard to believe removing the covers would make a SOTP difference. Not impossible, but pretty hard.
I can't test it today - it's raining like a cow pissing on a flat rock out there right now. But I'll give it a full skeptical try and report back - probably this weekend. Too bad my buddy Andi went back to Dallas - I'd run against my Supra with him to check real world results.
If there is a difference, I would expect it to be from removing the sound deadening from the top of the manifold. It seems to hold an alarming amount of heat right on top of the intake manifold.
I can't test it today - it's raining like a cow pissing on a flat rock out there right now. But I'll give it a full skeptical try and report back - probably this weekend. Too bad my buddy Andi went back to Dallas - I'd run against my Supra with him to check real world results.
If there is a difference, I would expect it to be from removing the sound deadening from the top of the manifold. It seems to hold an alarming amount of heat right on top of the intake manifold.