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Updating results. Using ATR45SS-0 model VS UHF57-900. Those two are very different turbos, different wheels sets with different wheel hub profiles but yet with almost identical result. I’m intrigued with both turbos performance. ATR45SS-0 was a 61mm turbo first developed in May 2020, UHF57-900 was a 62mm turbo developed in March 2024 as a powered up alternative of a G30-900. On paper ATR45SS-0 maxed at 563rwkws, while UHF57-900 maxed at 568rwkws. ATR45SS was slightly more responsive with slightly better power band through the mid range. Road driving ability, ATR45SS-0 had better throttle response, felt more robust under throttle, as it wakes up earlier. I think G series wheel hub design made it to have higher inertia under light throttle. Doing bit more prototype work in the next few weeks, will update result when its back on dyno again. ATR45SS0 Blue, UHF57-900 Red Chequered tuner's Dynapack hub dyno, E85 fuel. Mod list is in video below video_20240604_114214.mp4 -
Did you run the power cables for the mac valve to the other side of the car near the fusebox? Utilizing the stock boost controller cables? or did you run new ones? -
By JeffWithaJ · Posted
Hey I have a potentially stupid HICAS question 🤣 I'm currently doing a full hicas delete, Power steering pump modified to non hicas, all lines removed from the car along with all electronics. My stupid question is - Do I need a lock out bar? is there any reason why I cant just remove everything from the rear end? I already have a lock out bar but thinking to save a few extra grams I could also get rid of the arms and tie rods as well and just run it with nothing in its place? or would it have a negative effect on handling? -
Hi how are you guys? I know i have been absent for years but im coming back slowly guys just wondering if anyone know where the ball joint on the NISMO arm front and rear can be replaced with OE parts? Also i know this is not the thread looking for springs and blistein shocks for the 260rs. Please advcie cheers yudy -
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