4-2-1 Extractor for pickup or top speed?

[ethanphoon592]

Why don't you guys just use thermo wraps for the extractors? it really reduces the heat, cheaper alternative for powder coating.

 

[evo5229]

I did a dyno after installing Powerzone extractor a long time ago (everything else including exhaust is stock), I got : Max power = 54.3hp/5560RPM Max torque = 82.4Nm/4250RPM. This figure is on-wheel. Notice that at 5560RPM, the engine has 84% of max torque. So u can guess that with the extractor, the engine is strong within roughly 3600RPM-5200RPM range. I lost the original chart so cannot say this is 100% true, but that's my 0.2cent conclusion on Powerzone extractor.

ic.....so...where u do your dyno? your engine is 1.3?? or 1.0??....y hust 54.3hp??? ohkay....where u fix the powerzone???

 

[evo5229]

Why don't you guys just use thermo wraps for the extractors? it really reduces the heat, cheaper alternative for powder coating.

ya..like silver color paper metal lai det 1 izit???? where can we do that????

 

[taqu]

ic.....so...where u do your dyno? your engine is 1.3?? or 1.0??....y hust 54.3hp??? ohkay....where u fix the powerzone???

1. Dyno done in N1
2. It's 1.3 Proton engine
3. 54.3hp is on-wheel, not on-engine, if u wanna rough figure on-engine, it's about 71.4hp. And the engine is not new, it's already 140,000km when I installed the extractor.
4. I bought the extractor from Powerzone themselves and got it installed in an exhaust shop nearby.

 

[ady]

hai guy's maybe im new here but what im try to said about the extractor anyway cap ayam or what ever we really need a right caculation for the extractor.
anyway im using proton wira 1.5 but the performent really good. saya amat berpuasa hati ngan my performents
so apa2 extractor u must have a right tabung tengah, im using cap ayam but custom make for wira 1.5 and tabung tengah from hot bit's (original made in australia) and last sekali saya pakai muffler 5 zinger...
anyway my car untuk mencecah 180km sangat mudah...
cause how i running the pipe.... if u all pipih pickup of cause the top kurang n kalau pilih top n the pickup kurang sikit.
anyway i really want to know about 4x1 extractor.....
so guy's plz let me know okay....
anyway i really enjoy to know u all

~~~ ADY ~~~

 

[LemonRuski]

which would be more suitable to an A/T car?

41 or 421 ?

 

[Yong_5290]

4-2-1 will be mostly most suitable for street use...no matter manual or auto...
mostly onli vtec/mivec/20v use 4-1 coz of their engine high rev...4-1 is for high rev...

not any xtractor can be thermo wrap....those wit very thin piping like powerzones' and hot bits...the heat trap inside due to the thermo wrap will cause the piping to crack...
or sumtimes at the welding part

 

[LemonRuski]

Yong_5290,

so based on your comments above, you do not recommend thermo wrapping if someone buys either a powerzone or hotbits extractor..rite?

why thermo wrap?
what does the wrap do?

 

[Yong_5290]

thermo wrap is like sumkind of cloth wrap round the xtrator to keep the enigne bay cool...coz the xtractor is very hot...so means ur enigne bay will also be hot...
will will decrease the engine efficiency coz the cooler air is much denser...
tats is y at nite after u start u car n move u will feel the car feels kind of light n powerful...but after a while when the engine heats up then back to normal edi...

 

[LemonRuski]

so if i buy a powerzone / hot bits extractor....i should not thermal wrap it..rite?

 

[Yong_5290]

better dun...but when u install the powerzone o hot bits xtractor...
ask those welders to make a tapak to hold ur stock heat shield of ur original xtractor..
(those wit the words hot o do not touch 1)

 

[nitrus]

i think no need all these thermal wrap la.. some things must do, some things dun have to do until so extreme wan...

anyway .. anybody did their 4-2-1 extractor at Lai Exhaust shop before..? good ar? any comments? i heard there quite expensive.. but the welding very good?

 

[Yong_5290]

knn...i just got choped at lai xhaust...farker charge me rm 100 just to install a muffler

 

[nitrus]

wah yong... serious mou?

u think worth it or not... just now he quote me for ..

4-2-1 extractor = RM200+
Bullet = Rm180

... he say total 400 liddet..

how? he say their bullet very bagus wor... say very silent...

:hmmmm:

 

[tko73]

which would be more suitable to an A/T car?

41 or 421 ?

For me, I've used both 4-1 and 4-2-1 before. I can feel 4-1 is more powerful for my car (auto). The last time when I installed the HotBits 4-2-1 extractor, there was some funny "shoshhhh" sound, cannot find whats the problem. Also, cannot feel the difference from using original extractor.