Any notice the dual intake tube on the new LC500? Since we have the same motor I wonder if we could get our hand on the same to do the conversion... Check it out in the front of this video when the hood is open..

 

Yea I noticed that when I watched the video on the car a few days ago.

 

You will not benefit from a dual intakes. When your car is naturally aspirated the engine can only take in so much air. As well as there would be a lot of modifications to have have an intake go towards the driver side of the engine bay.

 

Ding Dong our motor and the LC500 are the same, that's why I posted this up... Anyway it looks to me as if the split intakes are split going into the front of the car for cooler air unlike the intake system we have that sits right in the engine bay... If the new design didn't benefit then Im sure they would have set it up exactly like ours...

 

Ding dong it's LC500. Why so touchy? They were giving an honest point of view.

The new engine makes more power. Certainly this required a tune for the engine to use all the air and simply not just increasing flow.

 

Do yourself a favor and stop now. Yeah 4 hp, the new engine [ unlike ours] does put out more power. lol
Think for a second, why change it up from how it is now. Hmm because it is a better design.. ding ding ding... Now try to stay with me here and again think...Same compression other than a 10 speed tranny...

 

Already knew you would respond in that manner. Lol.
Thanks for making everything clearer! I had to read word by word but I think I got it!

 

Cooler air, perhaps a bit more added timing and fuel. Lesser chance of pre detonation..

 

its just my un educated opinion but our airbox seems restrictive. Why else would we have a dual port , the second that opens to let in more air when you get on the gas.
i was curious as to why we couldnt open things up too

 

No, they certainly are not. The LS 500 has has a TT 3.5 liter V6. Not even close.

However the LC 500 does indeed have the same engine

http://www.lexus.com/concept/LS/

Lou

 

the LC500 has 471 because of a different tune and or marketing strategy. The JDM or Euro RCF has 471 with the same intake as the US model at 467hp. It has nothing to do with having 2 in take tubes. The LC500 also has a different engine cover. with the same motor as rcf gsf. So why would they do that?? They wanted to show a difference betweeen models. Tell ya what Do some actual research for yourself since you started a thread asking why. Dyno your car with stock intake, again with a drop in filter and intake tube, then create your own dual intake and or borrow a LC500 if you can make it fit properly and tell us your findings.

also if its a "better design" as you put....why hasnt any aftermarket turner offered a dual intake for the ISF then RCF and GSF???? RR racing has done extensive testing on the ISF and RCF and NOTHING had been able to out flow the stock intake box.

Think about it this way. IF your Theory is correct, and 2 intake tubes have a postive effect on a naturally aspirated car with no supporting tune, And im sure you know Superchargers and Turbochargers pull in more air than a Naturally aspirated car as well as pressurizes the incoming air and no one uses a dual intake tube design?? Because is does nothing,! Best case scenario it will aid in delivering more air to the system. But something i have learned the longer the intake tract can add slower boost response, as well as the longer the boost piping tract the longer it takes for the system to pressurize the air to the desired boost level.

we were all trying to inform you politely on why dual intakes will not help you. We would love if you could prove as all wrong. and come across something that would benefit the ISF RCF and GSF platform i would totally be on board!

 

For starters there is no room in our engine bay for dual intakes and it would seem they have designed the lc500 to accommodate this new feature. Lets just ask this question since you seem to work for lexus and apparently have designed it as well: Why change itakes on the new lc500 if there was nothing wrong with the current design? Think of how much money they could have saved using the same intake as ours in the rc-f. No I have no proof but who does? Fact of the matter is with our cars there is not much room for mods due to it not being forced induction and the ecu being hard to crack. That's why there is hardly anything for our cars in means of performance mods. My last build was a 1000hp 370z in which I designed a turbo kit for and custom 10.1 CP pistons to mate perfectly with my 6466 Twin scroll on a build closed deck block. When you take on such a project you must have an overall picture of everything to get the most out of your mods including intakes, fuel, etc and diameter plumbing to make that kind of power.
This thread was not started to have a pissing contest but to make aware that the intake had changed on the exact motor we have in our rc-f so relax...

 

i stated early that there was no room for dual. and 2 the ecu is cracked and there is a super charger kit available

 

No there is not currently a super charger kit for the rc-f as of yet and the ecu is not fully cracked but that's besides the point. The fact is the new LC500 has the same motor as ours but with a different intake system... It looks to me that the dual intakes travel into the fender wells for cool air after going through the air box..

 

http://www.rr-racing.com/RR-Racing-L...rcftune001.htm

https://www.youtube.com/watch?v=QtX2...ature=youtu.be

ok. im done, you are welcome. Please use the search bar in the forum as well as www.google.com.