New Product RR-Racing ISF ECU Tune.... FINALLY!!!
#121
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R/T Tuning/Eurocharged
ABT
Eurocustoms
APR Claims 60 and I've personally seen more than that from their flashes...
Many NA cars have pretty crazy gains over factory software. Others are a struggle.
The 911 Carreras are always lucky to get 20hp :/ I have spent a lot of time trying very hard to get more than 20 or 25 hp from those and I just havent found it.
#123
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#125
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I think some users remove the secondary cats and add a x pipe on the C63 but the gains are due to the engine being detuned from factory. For all we know Lexus could have held back power. I guess we will see with the next few cars that RR tweak.
#126
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You can tell Lexus left a lot on the table for us, I mean 50+ WHP gains just from freeing up the exhaust system. No reason to believe they weren't extra conservative with the factory maps.
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#128
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Then again you have to realize the S65 M3 V8 is pretty strung out from the factory. They dyno stock similar to us but they are down 1 full liter of displacement. They need fancy goodies to produce 414bhp while working with 4 liters like revving pass 8000 and individual throttle bodies.
You can tell Lexus left a lot on the table for us, I mean 50+ WHP gains just from freeing up the exhaust system. No reason to believe they weren't extra conservative with the factory maps.![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
You can tell Lexus left a lot on the table for us, I mean 50+ WHP gains just from freeing up the exhaust system. No reason to believe they weren't extra conservative with the factory maps.
![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
#129
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#130
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Then again you have to realize the S65 M3 V8 is pretty strung out from the factory. They dyno stock similar to us but they are down 1 full liter of displacement. They need fancy goodies to produce 414bhp while working with 4 liters like revving pass 8000 and individual throttle bodies.
You can tell Lexus left a lot on the table for us, I mean 50+ WHP gains just from freeing up the exhaust system. No reason to believe they weren't extra conservative with the factory maps.![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
You can tell Lexus left a lot on the table for us, I mean 50+ WHP gains just from freeing up the exhaust system. No reason to believe they weren't extra conservative with the factory maps.
![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
Anyway even tho I'm skeptical I hope this is true. I used to own an ISF and the no tuning/FI options are what caused me to move away. I wouldn't move back now but good for more competition.
#131
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#132
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I'm not sure I agree considering you can get them to over 600whp on the stock bottom end w/ a blower. The biggest advantage to the extra L is TQ IMO.
Anyway even tho I'm skeptical I hope this is true. I used to own an ISF and the no tuning/FI options are what caused me to move away. I wouldn't move back now but good for more competition.
Anyway even tho I'm skeptical I hope this is true. I used to own an ISF and the no tuning/FI options are what caused me to move away. I wouldn't move back now but good for more competition.
You can also go forced induction with the S2000 and make 500+ WHP on the stock bottom.
#135
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In your opinion what was Sard/Novel doing wrong in attempting to tune the ISF (North American market versions anyway)??