IS200t tune
Pole Position
Joined: Jan 2017
Posts: 211
Likes: 46
From: Florida
Seems that around 250whp is what the engine can do with the stock turbo but we still have room for torque, lets see what the dyno tune does.
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
These are not official numbers since i do see the "greater than or equal to" symbol before the figures.
Last edited by Sheddy; Jan 12, 2018 at 01:34 PM.
Advanced
Joined: Jan 2017
Posts: 519
Likes: 93
From: az
The difference between spec A and B. Spec A most likely peaks 23 psi and holds 18 psi whileSpec B peaks 24 psi holds 21-20 psi. Spec B peaks slightly higher 1+ psi, spec B holds more boost than spec A producing more hp.
Last edited by IS200TFOWL; Jan 12, 2018 at 06:53 PM.
Driver
Joined: Dec 2017
Posts: 117
Likes: 11
From: FL
B spec has a prototype turbo Do you think they just upgraded the intervals or a bigger turbo?
Thread Starter
Racer
Joined: Feb 2012
Posts: 1,729
Likes: 409
From: South FL
SPEC B has a prototype turbo charger as well. I would love to get the full specs on these setups, hopefully soon we will see more information surface. I also want to think that this is the motor that they are using on the Gazoo Racing RC200t. Lots of that gold heat reflect stuff.
Last edited by Sheddy; Jan 12, 2018 at 01:47 PM.
Advanced
Joined: Jan 2017
Posts: 519
Likes: 93
From: az
Our ‘engine’ will do much more than 250whp on the stock turbo. I knew everyone would look at it and assume crank. 250whp is a light tune holding around 14psi. Our turbo/engine can do much more than only hold 14 psi
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Advanced
Joined: Jan 2017
Posts: 519
Likes: 93
From: az
Spec B appears to have a modified turbo, the modified turbo with bigger inlets/outlets and turbines will allow the stock turbo to hold boost better and safer. I highly highly doubt they did anything to the engine internals. Spec b at the most probably requires an upgraded intake manifold, fuel upgrade, exhaust and a modified turbo. If any of our internals needed upgrading it would be the pistons. If they swapped the aluminum alloy pistons to forged pistons then we could probably hit 500whp. The pistons are our only weak point on the our engine
Pole Position
Joined: Jan 2018
Posts: 250
Likes: 45
From: Florida
93 or true race gas. I would not use e85 or mixtures as it requires more fuel. On the subject of the exhaust ports. The Honda motors went to the integrated manifold back in mid 2000’s on the v-6’s and a bit later on the 4 cylinders. Toyota also have done this on the new 2GR (2GR-FKS) this motor is in the new Camry, Tacoma, RX and GS. A turbocharged version will come in the LS500 likely designated 2GR-FTS. Interestingly the FKS has not found its way into the RC or IS.