Jul 23 2009, 04:47 PM
QUOTE(maxgenesis @ Jul 22 2009, 08:42 PM)
4-2-1 more power more performance more FC
1st .. its wrong at the more FC side (this is wat i mean) but then doesnt mean more power and performance coz need to see in which terrain the car is on, street or drag or track or curcuit or watever ....2nd:
QUOTE(maxgenesis @ Jul 23 2009, 04:18 PM)
where got wrong.....4-2-1 horsepower, no torque .....
4-1 = torque, no horse power...
i got do research for 5-6 areas b4 i post okay. bcoz i wan mod my exzos pipe... but i wan try different combination.
and still dead wrong ... 4-1 = torque, no horse power...
i got do research for 5-6 areas b4 i post okay. bcoz i wan mod my exzos pipe... but i wan try different combination.
read below
QUOTE(soulfly @ Feb 14 2006, 03:01 PM)
Exhaust modification
1. 4-2-1 type extractor
This setup gives power through out the rpm range. Drivability at lower rpm is quite good, making it the most suitable setup for street usage. Expect more top speed compare to 4-1 type.
Pro : Good power all across the rpm range, more top speed, good for cruising
Cons : Weak top end power, torque ends earlier
2. 4-1 type extractor
This setup gives more top end power. The low end power is weaker compare to 4-2-1 setup, but usually the power gain is significant from the midrange up to high rpm. This causes the torque range to come later, thus creating more horsepower at high range rpm compare to 4-2-1 setup. 4-1 is best for high revving motors like VTEC and MIVEC (just to name a few.
Pro : More midrange and top end power, higher hp, good for acceleration
Cons : Poor at lows, lower top speed compare to 4-2-1
read above ..... 1. 4-2-1 type extractor
This setup gives power through out the rpm range. Drivability at lower rpm is quite good, making it the most suitable setup for street usage. Expect more top speed compare to 4-1 type.
Pro : Good power all across the rpm range, more top speed, good for cruising
Cons : Weak top end power, torque ends earlier
2. 4-1 type extractor
This setup gives more top end power. The low end power is weaker compare to 4-2-1 setup, but usually the power gain is significant from the midrange up to high rpm. This causes the torque range to come later, thus creating more horsepower at high range rpm compare to 4-2-1 setup. 4-1 is best for high revving motors like VTEC and MIVEC (just to name a few.
Pro : More midrange and top end power, higher hp, good for acceleration
Cons : Poor at lows, lower top speed compare to 4-2-1
both have power (consider housepower?) .. but at different RPM range ...
both have torque but 1 ends earlier than another in the RPM range ...
In term of FC, u will need to see which range of RPM u usually is at .... doesnt really mean it will have bad FC unless u get a 4-2-1 and speed at 7k rpm which confirm leads to higher FC compared to 4-1 ...
another point, 4-1 have lower top speed compared to 4-2-1 ... why? ...
read below:
explanation about Velocity ....
all i can say is .... research more & read more
... kekeke ... 
hope all this helps and release the confusion
... 
ps: not sure about this but modding exhaust setup doesnt increase HP ... the engine HP is already there but it was blocked/hidden by some obstacles such as Cat Con or something ... so removing it would recover the hidden HP ....
in a way can say as increase hp gua 
... correct me if i am wrong ... 
Quote
... just too free in office ntg to do so read alot stuff ... now got work liao 
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