3.266 diff crown and pinion - fit ISF diff or not?
#181
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Yeah, it was a fun experiment. I’m sure my time will be better on the stock diff with the r888rs.
#182
Intermediate
iTrader: (1)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Thanks for updating your results. On your best time of 12.49 did you have any traction issues? You certainly made improvements
with the 60ft and 1/8 mile, I'm surprised it slowed down on the top end... I would try to get the KCLV back up and try again, you've
come to far not to give it a shot. That being said I think others have gotten down to the 1.8(s) on 60ft with a drag type tire and
stock gear, so the additional gearing may not be much advantage, especially past first gear... What gear were you in at the end of the
1/4? Do you think the additional shifting may have caused the lower mph? Thanks for the experimentation its valuable info.
with the 60ft and 1/8 mile, I'm surprised it slowed down on the top end... I would try to get the KCLV back up and try again, you've
come to far not to give it a shot. That being said I think others have gotten down to the 1.8(s) on 60ft with a drag type tire and
stock gear, so the additional gearing may not be much advantage, especially past first gear... What gear were you in at the end of the
1/4? Do you think the additional shifting may have caused the lower mph? Thanks for the experimentation its valuable info.
#183
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Thanks for updating your results. On your best time of 12.49 did you have any traction issues? You certainly made improvements
with the 60ft and 1/8 mile, I'm surprised it slowed down on the top end... I would try to get the KCLV back up and try again, you've
come to far not to give it a shot. That being said I think others have gotten down to the 1.8(s) on 60ft with a drag type tire and
stock gear, so the additional gearing may not be much advantage, especially past first gear... What gear were you in at the end of the
1/4? Do you think the additional shifting may have caused the lower mph? Thanks for the experimentation its valuable info.
with the 60ft and 1/8 mile, I'm surprised it slowed down on the top end... I would try to get the KCLV back up and try again, you've
come to far not to give it a shot. That being said I think others have gotten down to the 1.8(s) on 60ft with a drag type tire and
stock gear, so the additional gearing may not be much advantage, especially past first gear... What gear were you in at the end of the
1/4? Do you think the additional shifting may have caused the lower mph? Thanks for the experimentation its valuable info.
#185
Moderator
![](https://www.clublexus.com/forums/images/ranks/rank-mod2.gif)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
This. You ran almost the same time with stock diff and stock tires. Sticky tires make a big difference. All in, you are now slower. Those tires would lower your time on a stock diff.
#187
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
EDIT: DA was 1557 for 12.49
Last edited by 1sFTW; 06-22-19 at 09:44 AM.
#189
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
150 wasnt too bad for an experiment, i've only had it for not even a month, i think ill be fine. Fuel consumption was nearly identical. I get the same right at 300 miles per fill up in the city. lower top speed, yes.
#190
Lexus Test Driver
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
If you end up selling, please PM me.
#191
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I really felt like it did. You can just tell in the video the car stops accelerating at a high rate around 70mph. It’s fun to me in the city going stop light to stop light. I want better 1/4 mile times, otherwise I would definitely keep it
#192
Tech Info Resource
![](https://www.clublexus.com/forums/images/ranks/rank-smod2.gif)
iTrader: (2)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Just curious, did you have one more shift in your run compared to the OEM gearing? That would cost you 0.100 seconds by itself.
#193
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Edit: just looked apparently now they use the dimsport as well. still curious why that over the rr tune.
Last edited by liquidtek; 06-22-19 at 09:30 PM.
#194
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I just got mad at RR when I went to purchase a package deal, tune intake and exhaust, long story short, I wasn’t happy with my experience. So I went with vivid and bought everything through them. And yes, Vivid Racing uses dimsport. I haven’t been back to the dyno but just Exhaust i was at 12.90. Tune brought me to 12.52.
#195
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
This is also true, I’m at the top of fifth. It chirps fifth just before the finish. can’t remember where I was at with the stock diff, I think I was at the top of third. If that’s the case, that’s an extra .2 waiting for a gear change