cvt

I haven't seen this posted here.

Anyone have it?

https://www.rr-racing.com/Lexus-V8-u...rrr-v8dmpr.htm

cvt

Looks like the ISF guys are already on it. Very good discussion in there:

https://www.clublexus.com/forums/is-...2ur-gse-3.html

LoSt180

$500 for a 0.2s improvement in a 20-60 pull seems like a hard sell. This is one of those things you get when trying to squeeze every last drop out of your car and have run out of other things to buy.

Those ISF owners are a unique bunch, so I'd take feedback like "zOMG is like I have a pedal commander in race mode now" with a grain of salt.

05RollaXRS

I am thinking about it for my next mod. I reviewed the whole installation guide to see if it is something I could do myself as all of the mods I have installed myself (except the exhaust). However, it is not that straight forward so I am going to check with the dealership to see if they would be willing to do this. I would probably not take anywhere else other than at the dealership to install it.

cvt

The effect is even more multiplied at 1st gear and i'm sure improvements in other gears as well. I've had a crank pulley on my 350z and you can definitely tell it revs faster. The RR racing seems to be even lighter and better quality. $500 is not nothing I agree....but we all buying carbon fiber steering wheels for how much lol? This actually does something.

Don't knock the ISF guys...I used to be one (as well as many people in the RCF forums) and that group has the most history on 2URS. You obviously have some who are "unique" but all car forums are not immune to such personalities including this one.

05RollaXRS

I have had both lightweight flywheel (on my Corolla XRS - a Chromoly 8 lbs flywheel) and throttle programmer on my RCF currently. I think this feels more similar to the lightweight flywheel since it is actually reducing internal inertia. The throttle programmer really has maximum effect part-throttle. If you stomp from a full stop, it will give a faster reaction time, but after the throttle is fully open, there is no difference on or off. This crank pulley actually would act like a light flywheel where it will make the engine rev faster under full-throttle. My only concern is getting enough confidence from Lexus dealership to have the installation, but I do think in a 1/4 mile run it might drop 0.3 - 0.4 seconds time.

I find the throttle programmer actually is more useful in the turns than in a straight line (other than part-throttle bolters or fast off the line reaction). You can easily oversteer the car with a slight throttle tip-in mid-corner and the tail would snap very easily even at slower speeds of around 40 - 50 mph. It also "front loads" the acceleration out of turns as well where the car would instantaneously pull out of the turn.


Agreed. I have benefitted from the ISF forums. I see ISF guys as the pioneers who drove the aftermarket before RCF even existed. Once RCF came out, companies like RR racing started making parts for the RCF.

vraa

iTrader: (2)

ISF is still better....

cvt

How dare you….😂

LoSt180

Definitely meant that in jest, sarcasm doesn't always land correctly. They are deff way ahead of the mod curve than RCF drivers, so lots of good info. Do still need to sort through some noise to find the signal, but that's about par for any platform that's being pushed to new levels.

05RollaXRS

I am looking at putting a carbon fber hood vent on my RCF (Elvin Wong) and it is about the same price in USD so the price considering the high quality, is totally reasonable and justified. The only thing I am trying to sort out a good and safe installation strategy hopefully, with my dealership and the F-specialist there. If I can work out the logistics, I think this mod is totally worth it. I have had light flywheel on my other Corolla XRS and it actually has a more tangible benefit than the throttle programmer on my RCF. It could shave off potentially between 0.3 - 0.4 seconds in the 1/4 mile with most of it coming in the 1st and 2nd gear with good traction.

My car already with just full exhaust, CAI and RR racing tune is putting down what translates to 12.1 - 12.2 seconds in the 1/4 mile (at sea level DA) and 60 - 130 mph in the 11s at 3600 feet DA according to the Dragy GPS runs I have been doing so this should make the car capable of cracking the 11s in 1/4 mile at sea level DAs. This is something I am trying to achieve on stock headers (which arguably, is the best bolt-on, but have no plans to get EL heaters yet) . I will definitely test it if I can figure out a good installer.

AlexAviles

It would be lower on the list of mods for me but it’s definitely worth to anyone trying to squeeze every drop of power. Look at this way, a lighter part takes less horsepower to turn so more horsepower can make it to the wheels, especially when reducing rotational mass.
Remember what lotus said.
"Adding power makes you faster on the straights; subtracting weight makes you faster everywhere"

Vitveet

I'll have to reread the thread to see if anyone made a comment like "zomg it's like I have a pedal commander now"....as I don't remember seeing that statement.
I did, however, make the statement that it feels like now, WITHOUT MY THROTTLE CONTROLLER ON, like the throttle controller is on. Definitely much more sensitive in 1st gear. That's 100% reality. Whether or not you gain a few tenths is up in the air as we all know the throttle controller doesn't make the car faster, just solely 'feel' faster. Can def tell the "mod" was done. Well worth the measly $400-$500 for the lightweight crank pulley.....F cars aren't the car for you if you're scared to spend a few hundred bucks on a worthy mod.
And as always, THANKS to RR Racing for continuing to develop products for F cars! One of the few continuing to push the platform 😎!

V.

cvt

Video of a ClubLexus member shaving 1/10th off his stock time.

Miggie

great, another thing to put on my wish list

cvt

Maybe it's me but the needle response on the vid seems apparent...can't imagine how "sensitive" it is to drive but I've had lightened crank pulley on other cars and the response is very welcome