Project IS250 making power, 0 - 60 (100) Secret unlocked.
#16
Driver
Thread Starter
That is what Lexus wants you to do, design slow as Is250 with engine bay you can't really do anything to and Oxygen sensors you can't really trick, unless you know what you are doing, so that you have to buy the IS350.
Like most large companies, they all gate their products. If i wanted to get a fast car, i'd get an electric car with monster torque. Or go to Dubai and get a Nissan Patrol with massive slicks.
Like most large companies, they all gate their products. If i wanted to get a fast car, i'd get an electric car with monster torque. Or go to Dubai and get a Nissan Patrol with massive slicks.
Last edited by Dealarr; 12-29-20 at 06:05 PM.
#17
Driver
Thread Starter
And we will post results here, people are hating because they don't have it in their cars. In reality, when you have increased power, fuel economy in your car (rolling close to 20km per L on flat at 100km p/hr) , why would it be depressing? I certainly was smiling.
Anyway, if others fear of their belts breaking, the superchargers do not run off the belt off the alternator. The Amps they draw increases it's resistance, the amps are not different in terms of resistance from superchargers say to heated seats. 250A Mechman alternators exists, do you hear stories of them breaking belts across the world because of high powered audio set up in cars? So why would 60A at max rpm break a normal belt, your car sometimes do 60 - 90 Amp draw, I don't have all my electric or high powered audio gear on. Fear mongering, hilarious brothers.
Last edited by Dealarr; 12-30-20 at 09:18 AM.
#18
Lexus Test Driver
iTrader: (2)
^^ +10
On that note, we all know that anytime air is compressed, it raises the temperature. I'd suggest fitting the plumbing such that its filtered > ducted fans > MAF > TB. This way the engine knows the air temp at the TB...
But, you're happy so that's all that matters. Enjoy.
On that note, we all know that anytime air is compressed, it raises the temperature. I'd suggest fitting the plumbing such that its filtered > ducted fans > MAF > TB. This way the engine knows the air temp at the TB...
But, you're happy so that's all that matters. Enjoy.
#19
Driver
Thread Starter
^^ +10
On that note, we all know that anytime air is compressed, it raises the temperature. I'd suggest fitting the plumbing such that its filtered > ducted fans > MAF > TB. This way the engine knows the air temp at the TB...
But, you're happy so that's all that matters. Enjoy.
On that note, we all know that anytime air is compressed, it raises the temperature. I'd suggest fitting the plumbing such that its filtered > ducted fans > MAF > TB. This way the engine knows the air temp at the TB...
But, you're happy so that's all that matters. Enjoy.
#20
Driver
Thread Starter
This is how much boost we make, guess how much HP we gained.
0.23x100kpa (this gauge always needs to be manually reset to -0.1 from start, doesn't reset at 0, why Eluto? otherwise not bad) = 3.33 PSI. High compression engine don't need lots of boost. Enough to bring it out of vacuum and boosting all within Lexus's ECM limits for factory knock and detonation fuel maps. It's an invisible performance upgrade even to the car itself. (Ammeter is -2.9 on startup, it says Auto zero calibration, guess not. So whatever figure you see add 3).
Another IS350 on CL with traditional superchargers Rotrex is only running 4PSI.
IS200T is 241HP 1.7T 0-100 8.77 s
IS250 is supposedly 205HP 1.6T 0-100 8s climbing slight hill. How much HP do you mathematically think we gained?
She is now quite perfected, done something to the MAF sensor readings and it's now boosting consistently.
Last edited by Dealarr; 02-08-21 at 08:32 AM.
#21
Driver School Candidate
https://youtu.be/-vtjKEdjabI
0.23x100kpa (this gauge always needs to be manually reset to -0.1 from start, doesn't reset at 0, why Eluto? otherwise not bad) = 3.33 PSI. High compression engine don't need lots of boost. Enough to bring it out of vacuum and boosting all within Lexus's ECM limits for factory knock and detonation fuel maps. It's an invisible performance upgrade even to the car itself. (Ammeter is -2.9 on startup, it says Auto zero calibration, guess not. So whatever figure you see add 3).
Another IS350 on CL with traditional superchargers Rotrex is only running 4PSI.
IS200T is 241HP 1.7T 0-100 8.77 s
IS250 is supposedly 205HP 1.6T 0-100 8s climbing slight hill. How much HP do you mathematically think we gained?
She is now quite perfected, done something to the MAF sensor readings and it's now boosting consistently.
0.23x100kpa (this gauge always needs to be manually reset to -0.1 from start, doesn't reset at 0, why Eluto? otherwise not bad) = 3.33 PSI. High compression engine don't need lots of boost. Enough to bring it out of vacuum and boosting all within Lexus's ECM limits for factory knock and detonation fuel maps. It's an invisible performance upgrade even to the car itself. (Ammeter is -2.9 on startup, it says Auto zero calibration, guess not. So whatever figure you see add 3).
Another IS350 on CL with traditional superchargers Rotrex is only running 4PSI.
IS200T is 241HP 1.7T 0-100 8.77 s
IS250 is supposedly 205HP 1.6T 0-100 8s climbing slight hill. How much HP do you mathematically think we gained?
She is now quite perfected, done something to the MAF sensor readings and it's now boosting consistently.
IS200t 0-100 is low 7s.
Is it hard to record a proper acceleration video in 2021? Or get the dyno sheet?
#22
Driver
Thread Starter
Edit: oh, found the reason why, we made dumb mistake connected the 5V signal on for the power controller of the charger from Pedal 5V A35 to EPA A34 instead of Pedal's negative A26, you can see this on the 4gr fse engine control terminal uploaded somewhere here. So it is out of VVT calibration, slow death. Need replacement PCM. Lesson learned. Car is still drivable, very good high end just no good mid end and fuel economy sucks (still better than first purchased). Brisk premium EVO spark plugs is most excellent, big performance difference (but maybe no VVTI so they gunk up quickly from supposed EGR effect, producing hard starting, problem solved reinstalling our one pronged Denso SP we still kept, will reinstall and report once VVTi returns
. And don't use Moly or metal based engine treatment, it will stick to your crank/cam sensors. Engine is much quieter but offset is sensors will be mucked, I had to clean all mine, taking out the AC condenser by going under the car with panels off. Bestline is really good though, since it's diamond based, Project Farm has a video on it.
Last edited by Dealarr; 07-21-21 at 08:53 AM. Reason: Discovered reason for VVT not activating straight after posting in the same day, after so long...
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