Tuesday, May 19, 2009

4AGE EXHAUST PIPING SYSTEM

1st setting

1) Standard 4-2-1 exhaust Manifold
2) 2.5 inch straight piping without any center bullet
3) 2.0 inch Blizt Muffler

The result:

When I use this setting, I feel that the performance my engine is very slow at low revs especially 1st, 2nd and 3rd gear. I feel it very critical when I climb a hill. The response or performance can be felt at 6k rpm above only. but I got the top end power. climbs from 130km/h to 190km/h (and more) without hassle......... but the fuel consumption is very higher and my engine felt like struggling to accelerate... For RM 10 (5.57 liter) I can drive to 63 km only.



2nd setting

1) Standard 4-2-1 exhaust Manifold
2) 2.5 Inch piping from manifold to centre box.
3) 2.0 Inch piping from centre bullet to muffler
4) 1.8 Centre box
5) Marco Muffler

Result:

I got smooth sound, good response at 1st to 4th gear, the engine more pick up. I can climb to Genting Hihgland with 4th gear without hassle. But I lost top end power....

I feel my engine really have to put an effort to chase up to 180 km/h. But once the accelerator pedal is raised, the rev is "KEPT"..... rev doesn't drop quickly, it feel like the pedal is still stepped on. Fuel consumption is very good, for RM 10 I can drive to 87km . I can save more money for this setting.

I think 2.3 inch piping is suitable for 4age users whom have done modifications to the internal of their engine. I have read in Jap mags that they are using 2.5 inch for max modded 4age (With Turbo kit). Please correct me if I am wrong. Because there is lack of info regarding the suitable exhaust setting for 4AGE. Maybe some of you have some opinion for this articles.


Note: I am sorry if there is any wrong facts and i hope this will be a useful info for all of us.