More ISF vs RCF fun.
10-06-15, 07:20 AM
#20
Lexus Champion
Join Date: Jun 2007
Location: Aventura, Florida
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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).
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BTW I love the RCF in these videos. That interior
10-06-15, 09:05 AM
#21
Pole Position
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??
10-06-15, 10:36 PM
#22
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.
10-06-15, 10:49 PM
#23
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.
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.
10-07-15, 08:21 AM
#25
Tech Info Resource
iTrader: (2)
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.
10-08-15, 07:40 AM
#26
Instructor
^^^this!!!
10-09-15, 09:16 AM
#28
