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I have heard of a few people complaining of diminished performance with RMMs intake...i have Injens, any comments on theirs??? i love the sound but i really dont notice any increased power..boyfriend thinks so but i disagree [img]images/smiles/icon_smile.gif[/img] i sure hope so ..that would explain my slower times at the strip [img]images/smiles/icon_smile.gif[/img]
hey altezzachick, its true, many rmm customers reported loss times at the strip esp at 1/4 mile... (.4 sec) or so...how's the injen? im interested in it..how much did u get it for? and i'mw orried that becaus the injen doesnt have a heatshield like the RMM or swift racing tech ones...thanx
Why don't you guys try the Swift Racing intake, ECU, since many customers that have the GS400 use it and have no problems. I'm probably going to get it for my GS400.
Hey gsnav,
You following me everywhere? j/k Nice to see you here too.
Quote:
Originally posted by gsnav: Why don't you guys try the Swift Racing intake, ECU, since many customers that have the GS400 use it and have no problems. I'm probably going to get it for my GS400.
umm im sure Swift is an excellent company but DAMN the prices are a little out of my range [img]images/smiles/icon_smile.gif[/img] i mean 995 for an intake??? i paid 150 for injens! my boyfriend mentioned a carbon fiber one for his car was only like 450...
"The IS".... I am happy with it so far, like i said though i don't notice anything different except the sound...sounds cool. looks good too [img]images/smiles/icon_smile.gif[/img] I'll let ya know if it hurts my baby in any way...
I believe that the price $995 includes the ECU right?
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IS 300
TRD Front & Rear Undercar Brace Kit
TRD Front & Rear Sway bars
TRD Front Grill
Tom's Rear Tower Bar
Tom's Lower Performance Rod Rear
Tom's Suspension Member Reinforcement Rod (Front & Rear)
I don't know if you all know that the IS motor is a "positive pressure motor" and has been designed with the factory airbox (made by GM) as a necessary part of the equation. It needs pressure to run at it's optimum efficiency. The AFM is an imbedded design (within the intake pipe from the airbox)unlike the previous Toyota AFMs. There were tests run w/o the AFM (was a complete dog, of course, but had to satisfy a question) and one with an open filter system. Both were terrible! The ECU taking feeds from the sensor ECU was getting crazy trying to set/control the fuel/air mix throughout the powerband. The 3 computers in the IS are OBDIII, and there's not a whole lot you can do to trick them.
Sorry to rain on the parade. Just be wary of anybody pushing these open filter elements as performance enhancers. They're "dehancers" for the time being. Don't worry, we're working on this with TOM'S.
Could you provide any additional information on this topic. Particularly what constitutes a "positive pressure motor" and what role the air box / air filter play. Additionally, how does this concept relate to forced induction. I thought that I understood the purpose of the AFM as a sensor for measuring air mass - but now I'm not sure I understand the topic well enough to make an educated purchase (or return as I already have the RMM intake - installed for a couple of months but recently removed prior to the 5000 mile checkup).
Please forgive my ignorance, I come from the American muscle car world (last car was a 96 Cobra) where more air = more fast (assuming you had enough fuel to go with it).
Yeah, I would like to know more about this too!! I didn't even know that OBDIII existed yet. I have a couple questions concerning the positive pressure system, but I am basing them on my assumptions of what a positive pressure system is, so I will wait for you to explain....
Dale, I'm in the same boat as TSoich & Orange Crush. My service manuals mention OBDII and the need for an OBDII scan tool. (That of course doesn't necessarily preclude the existence or ultilization of OBDIII.) Would you be so kind as to elaborate on this and the "positive pressure motor" subject?
Okay Dale, let's assume the theory you stated is correct. Let's also assume (to be fair) that SRT's dyno stats are correct.
How would you explain the gain in HP?
If, as you stated, that these (or this) product(s) are "dehancers" then someone is obviously (and logically) wrong.
Are you saying that you don't believe that SRT did not, could not, develop a chip that would compensate for this? If so, do you have any quantifiable data?
I'm not saying that you're right or wrong. SRT did post dyno results that claims their product increases HP. You posted a theory and maybe your opinion otherwise. Can you quantify that?
Secondly, it appears that you work for or own some company that also develops performance products... I'm not taking away from any experience or knowledge you may have but once again, can you provide documentation or definitive facts to support what you are stating?
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