IS F (2008-2014) Discussion topics related to the IS F model

More ISF vs RCF fun.

Thread Tools
 
Search this Thread
 
Old 10-05-15 | 07:41 PM
  #16  
caymandive's Avatar
caymandive
11 Second Club
iTrader: (2)
 
Joined: Dec 2005
Posts: 4,066
Likes: 72
From: N.Va
Default

Nice runs. I'm curious to see how the RCF does once they have headers available. Does the IS-F really have an intake mod? As far as I know all the aftermarket intakes do nothing except rob power or make nothing more than stock.
Old 10-05-15 | 11:13 PM
  #17  
Ltaboso's Avatar
Ltaboso
Pole Position
 
Joined: Nov 2014
Posts: 325
Likes: 2
From: new york
Default

gearbangin, what is your current mods?
i saw on your IG you have NOVEL ecu?
Old 10-06-15 | 03:38 AM
  #18  
Gearbangin's Avatar
Gearbangin
Thread Starter
Lexus Test Driver
iTrader: (7)
 
Joined: Mar 2011
Posts: 1,158
Likes: 223
From: PA
Default

Lol no novel ecu I just shared The pic. I'm ppe/joez/borla/rrracing bazooka. The rcf has lems intake GT Haus header back and cc brakes which saves a ton unsprong.
Old 10-06-15 | 03:57 AM
  #19  
Ltaboso's Avatar
Ltaboso
Pole Position
 
Joined: Nov 2014
Posts: 325
Likes: 2
From: new york
Default

ok thanks,let us know what happens after the headers for the RCF
Old 10-06-15 | 07:20 AM
  #20  
MRxSLAYx's Avatar
MRxSLAYx
Lexus Champion
 
Joined: Jun 2007
Posts: 2,148
Likes: 0
From: Aventura, Florida
Default

Originally Posted by 05RollaXRS
Like stated before, an RCF stock for stock and mod for mod is significantly quicker in a straight line. There are many drag races that prove that. As far as bolt ons go, the ISF in this video has I/H/E while the RCF only has exhaust (and larger circumference wheels, which lengthen the gear ratios).
]
In this case, the wheels probably make the car faster(my car traps 2mph faster with a taller tire/lighter wheel combo). There is no way you can say that an either car is faster Mod for Mod considering that there are no headers available for the RCF. Based on what i've seen with the RCF header there isnt going to be much a difference in power from an aftermarket program but I could easily be proven wrong. Guess well have to wait and see...



BTW I love the RCF in these videos. That interior
Old 10-06-15 | 09:05 AM
  #21  
MileHIFcar's Avatar
MileHIFcar
Pole Position
 
Joined: Feb 2015
Posts: 2,673
Likes: 405
From: Colorado
Default

I thought I read and saw in a diagram somewhere (maybe here?) that Lexus changed the header design on the RCF, that in effect had the same result as putting on a set of aftermarket headers for the ISF? So I am curious also if PPE/Sikky etc.... will make an aftermarket header for the RCF and if the gains are going to be as significant as they are for the ISF??
Old 10-06-15 | 10:36 PM
  #22  
Weapon F's Avatar
Weapon F
Moderator
 
Joined: Jan 2009
Posts: 1,664
Likes: 250
From: NY
Default

OP great video of 1/4 and highway pulls of modded I/H/E ISF vs headers back RCF, pretty much what I though the out come eould be based on but cars numbers. Modded ISF from dig takes RCF, from 60 to 120 even, from some of others high way pulls you seem to have advantage just curious what speed where you going when you did pulled on him.
Old 10-06-15 | 10:49 PM
  #23  
Weapon F's Avatar
Weapon F
Moderator
 
Joined: Jan 2009
Posts: 1,664
Likes: 250
From: NY
Default

I also read how they maximized the Header Design on the RCF so will aftermarket headers result in huge improvement can't wait to see if they do great for the RCF, if they don't even better for the isf.

This is just one of the reasons why I'm sticking with the isf for right now just not a big enough improvement in performance overall to justify jumping to the RCF especially considering the price fully loaded with taxes. Does the RCF handle better than ISF yes it does, does RCF have more and newer Tech yes it does, is RCF interior nice oh yes it is, but does it offer massive more performance over my current I/H/E ISF still on stock suspension no it doesn't with addition of some FIGS suspension components a good set of coilovers and new set of RE 11 tires will help even thing up on track.
Old 10-07-15 | 07:08 AM
  #24  
Gearbangin's Avatar
Gearbangin
Thread Starter
Lexus Test Driver
iTrader: (7)
 
Joined: Mar 2011
Posts: 1,158
Likes: 223
From: PA
Default

The dig races were 1/8 mile and the rolls we agreed to 60-120.
Old 10-07-15 | 08:21 AM
  #25  
lobuxracer's Avatar
lobuxracer
Tech Info Resource
iTrader: (2)
 
Joined: Jul 2006
Posts: 22,469
Likes: 4,099
From: Georgia
Default

I can't fit in the RC F with a helmet. Not a chance. I barely fit with no helmet at all. There is no RC F in my future, especially when it can't outrun the '11 IS F at VIR in the Lightning Lap.
Old 10-08-15 | 07:40 AM
  #26  
BS ISF's Avatar
BS ISF
Instructor
 
Joined: Feb 2009
Posts: 1,061
Likes: 28
From: illinois
Default

^^^this!!!
Old 10-08-15 | 08:58 AM
  #27  
Gearbangin's Avatar
Gearbangin
Thread Starter
Lexus Test Driver
iTrader: (7)
 
Joined: Mar 2011
Posts: 1,158
Likes: 223
From: PA
Default

Raw video.
Old 10-09-15 | 09:16 AM
  #28  
bbong's Avatar
bbong
Intermediate
 
Joined: Nov 2014
Posts: 289
Likes: 28
From: PA
Default

Originally Posted by lobuxracer
I can't fit in the RC F with a helmet. Not a chance. I barely fit with no helmet at all. There is no RC F in my future, especially when it can't outrun the '11 IS F at VIR in the Lightning Lap.
^^^ Double this
Old 10-09-15 | 10:09 AM
  #29  
Gearbangin's Avatar
Gearbangin
Thread Starter
Lexus Test Driver
iTrader: (7)
 
Joined: Mar 2011
Posts: 1,158
Likes: 223
From: PA
Default

Old 10-09-15 | 10:50 AM
  #30  
RCFormante's Avatar
RCFormante
Supercharged!
iTrader: (1)
 
Joined: Sep 2005
Posts: 815
Likes: 61
From: PA + FL
Default

Your bazooka exhaust was so loud, I think it droned out my horn honks while our windows was up.


Quick Reply: More ISF vs RCF fun.



All times are GMT -7. The time now is 01:25 PM.