- Jun 29, 2006
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HAHAHA.. agreed,,,I guess you guys got the idea about trumpet. Well, its not that expensive converting from AFM to MAP. All you need is a Map sensor and BT ECU (maybe the AIT sensor too), which can be done at around RM1k. No need to change the entire wiring to BT =)
If you're going for cams and stuff, I think its best to convert to MAP. IIRC, there's some sort of flap inside the AFM which could cause restriction to the air intake... not too sure about this. Anyone has a pic of the AFM's pass-through tunnel?
On the other side, adding trumpet whilst keeping the plenum should also improve air intake a bit. If the Tom's plenum + trumpet is reasonable, it guess it should be best for SVT. Otherwise, custom-made 2" trumpet might do the trick.
The reason why some users might experience power loss with open trumpet is because stock ECU is not designed to optimize such application. This is where EMS (such as E-manage) helps to optimize the performance. In my personal testing, open trumpet + emanage helped me to gain power (based on feeling) and also 10-15km extra mileage.
cus i am using it.. but with out trumpet.. going to try trumpet real soon..
hahaha