how can i get more compresion on my gsr motor can i put a b16 head on it? or how much should i shave the stock one down ?

 

leave the perfectly good head...just get b16 pistons, (p30), or if you really want compression...get pct pistons (ctr), like me

 

ctr will be too much compression with a gsr..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSracing94 &raquo;</TD></TR><TR><TD CLASS="quote">ctr will be too much compression with a gsr..</TD></TR></TABLE>

he wants compression, and its not too high that can cause detonation...

i have a daily driver gsr with pct and running safe with 91 octane, so i wouldnt say anything if you would know what im trying to tell the OP, i said pr3's are good for an ls/vtec so are pct's, but it really depends on him...he wants compression but didn't say how much

 

-higher CR pistons (jdm ITR, P30, PR3)
-milled head
-flat faced valves
-thinner head gasket

the b16 head will lower the compression because the GSR head has a smaller combustion chamber volume

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2 Mang &raquo;</TD></TR><TR><TD CLASS="quote">-higher CR pistons (jdm ITR, P30, PR3)
-milled head
-flat faced valves
-thinner head gasket

the b16 head will lower the compression because the GSR head has a smaller combustion chamber volume </TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CW_98gsr &raquo;</TD></TR><TR><TD CLASS="quote">

he wants compression, and its not too high that can cause detonation...

i have a daily driver gsr with pct and running safe with 91 octane, so i wouldnt say anything if you would know what im trying to tell the OP, i said pr3's are good for an ls/vtec so are pct's, but it really depends on him...he wants compression but didn't say how much</TD></TR></TABLE>

i built a lsvtec with CTR pistons and they suck. the amount of timing you have to take out is stupid..thanks bye.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSracing94 &raquo;</TD></TR><TR><TD CLASS="quote">

i built a lsvtec with CTR pistons and they suck. the amount of timing you have to take out is stupid..thanks bye.</TD></TR></TABLE>

you suck for not taking advantage on pct's..and not knowing the full potential.

good bye

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSracing94 &raquo;</TD></TR><TR><TD CLASS="quote">

i built a lsvtec with CTR pistons and they suck. the amount of timing you have to take out is stupid..thanks bye.</TD></TR></TABLE>

I wouldnt go as far to say they "suck". they are a good oem pistons for a race motor, or track motor but are quite hard to run in a dily driven block, especially an LSvtec

the extra stroke length combined with a smaller combustion chamber volume that vtec heads have will put your compression up around 13:1+

the CTR psitons are also very heavy compared to the PR3, P30, JDM ITR, and the high dome can cause inaccurate fuel spray patterns with stock injectors

if you plan to have them in a daily driven motor do not put them in an LSvtec, and do alot of research before you put them into a GSR block, it can be done but you dont know what complications you may face with the wear and tear of daily driving

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2 Mang &raquo;</TD></TR><TR><TD CLASS="quote">-higher CR pistons (jdm ITR, P30, PR3)
-milled head
-flat faced valves
-thinner head gasket

the b16 head will lower the compression because the GSR head has a smaller combustion chamber volume </TD></TR></TABLE>


And the port and polish...might as well since the block will be machined worked anyway.

 

i thought the b16 heads had a smaller chamber, creating more compression.....everyones been doin the poor mans r - b16 head on a gsr and supposably the compression is higher than just a gsr

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gsr dood &raquo;</TD></TR><TR><TD CLASS="quote">i thought the b16 heads had a smaller chamber, creating more compression.....everyones been doin the poor mans r - b16 head on a gsr and supposably the compression is higher than just a gsr</TD></TR></TABLE>

nope, u decrease compression with a b16 head...though it has better air flow, it lacks the amount of volume the b18c head offers, but doing a mild port polish and mill on the b16a head will bring the compression back up or higher depending on the valvetrain setup.

 

Burn mad oil to get alot of carbon build up in your combustion chamber!

 

i had detonation with ctr pistons

 

i hear LSV is strong, but it sucks. Plus, its not very compatible with boost, so if you're running boost, dont do it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lqdcourage &raquo;</TD></TR><TR><TD CLASS="quote">i hear LSV is strong, but it sucks. Plus, its not very compatible with boost, so if you're running boost, dont do it.</TD></TR></TABLE>

please dont spread mis-information

LSvtec's can be very strong motors, wether they "suck" or not is a personal opinion, in terms of reliability it is the same as building a GSR, ITR, B20, LS, etc... it will only be a reliable as it is built

lsvtecs are very compatible with boost, it is the same as any other built motor as stated above

ive seen an LSvtec turbo put down 603whp and 560ft/lbs of torque

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lqdcourage &raquo;</TD></TR><TR><TD CLASS="quote">i hear LSV is strong, but it sucks. Plus, its not very compatible with boost, so if you're running boost, dont do it.</TD></TR></TABLE>

you forgot to put LOL at the end of it..cuz, cuz you were joking right???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CW_98gsr &raquo;</TD></TR><TR><TD CLASS="quote">

you suck for not taking advantage on pct's..and not knowing the full potential.

good bye</TD></TR></TABLE>

okay you dont even know who you are talking to, ive been in the game for a long time and ctr pistons arent that great, ive used them and i know thier full potential so i would just stop while youre ahead.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSracing94 &raquo;</TD></TR><TR><TD CLASS="quote">okay you dont even know who you are talking to, ive been in the game for a long time and ctr pistons arent that great, ive used them and i know thier full potential so i would just stop while youre ahead.</TD></TR></TABLE>

dont bother arguing with him..hes never built an engine in his existence...he tried to tell me pr4 pistons raise compression in a gsr block w/ gsr head

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">

dont bother arguing with him..hes never built an engine in his existence...he tried to tell me pr4 pistons raise compression in a gsr block w/ gsr head</TD></TR></TABLE>

hahah alright then