typically TB's will give better throttle response, more air into the plenum faster. HP may come at peak, but you may lose low end torque. For instance, I now have dyno proof of the wide open secondary intake path losing power over the stock 2-stage intake path in the low end. When will we get an ITBL setup...that would be the best by pushing the throttle plate closer to the valves
__________________
Making Lexus Aftermarket parts since 2001
- Hood Prop Kits - OEM Replacement Struts (LS430, LS400) - Carbon Fiber Splitters - CNC Battery Bars - CNC Mat Saving Foot Plates - Camber Correction MEGA Arms - BC Racing Coilovers - Clutch Damper Delete CURRENTLY IN DEVELOPMENT: ISF PrePreg Carbon Engine Cover- ISF Ti Exhaust - ISF Custom Grill Insert- Rear Exhaust Tip Diffuser- IS300: Gen2 Mega Arms - Front RCA / HiSteer - Heatshield GS/SC 3/400: CF Hood Struts
icode makes 2 available upgrade options. Since there are 2 manufacturers producing them this upgrade SHOULD make a difference. icode states +5 ps/5hp increase, with an upgraded intake and a more free flowing exhaust this should definitely yield more than 5 hp.
It makes sense, last year I reported that my times were slower when using the secondary intake wide open, at the 1/8 mile I lost 2 MPH and my times were about 0.2 seconds slower. This was done in the same night, back to back runs.
Quote:
Originally Posted by FIGS
For instance, I now have dyno proof of the wide open secondary intake path losing power over the stock 2-stage intake path in the low end. When will we get an ITBL setup...that would be the best by pushing the throttle plate closer to the valves
IS-F Big Throttle by Think Design
Linear Mode
