gsr head or si head

[jdmteg09]

well right now i have a civic si motor and my friend is gonna give me a gsr head and tranny wat would be better to leave the b16 head on the si or put the gsr head on it i dont know

 

[obd1kenobi]

The Si head flows Better then the GSR head, so keep yours dude

 

[DC2Integ]

and thats what makes poormans type r lol

 

[omgherb]

i love the way the b16 head stronger pull when doing the lsVtec but what i have realize that if you dont have aftermarket vavles springs and retainers it is alot easier to drop vavles so i say a b18c1-gsr head if your not going to really planing on doing anything else

 

[cabezzzdb8]

GSR head combustion chambers are smaller = more compresion only reason b16 head "flows" better is because of the intake manifold is almost the same as the ITR mani, GSR mani is dual stage meaning torque at low rpm and short intake runners at high RPM I say GSR

 

[B18TEG]

i say get an ls and port the hell out of it, for far less than a vtec head!. . .lol.. . no id say a gsr head and rework the runners a little. itll definitely give more bang than the pr3

 

[Sirfallsalot243]

MichealDelany did a dyno test of the two heads back to back on the same motor. EXACT same power. The B16 head made a little better power up high, but the GSR head made better power down low. The actual differences are EXTREMELY minute. The B16 head does flow better, but because of the higher compression ratio provided by the GSR head, they each have their benefits. The two minor differences kind of cancel each other out, and they performance differences are almost invisible. A ported GSR head would be ideal though (better than ITR head IMO). It will flow better than an ITR head (remember the ITR's port is only a mild port job), and it will also provide a higher compression ratio.

 

[Sirfallsalot243]

and thats what makes poormans type r lol

He has a B16 bottom end.

A poormans Type R is a B18C1 bottom with a B16A head.

 

[8urcivic]

do the si head......then u can upgrade to type-r mani.

 

[DA6P1]

GSR head combustion chambers are smaller = more compresion only reason b16 head "flows" better is because of the intake manifold is almost the same as the ITR mani, GSR mani is dual stage meaning torque at low rpm and short intake runners at high RPM I say GSR



xxx2

 

[JDMxDB8]

Stick with the Si head.

 

[DA6P1]

ive heard of the b16 heads goin out with stock internals on conversion...thats why u shud stick to the GSR!