port and polish scion tc head
#2
Senior Member
Scion Justice League of America
SL Member
Join Date: Apr 2005
Location: Portland, Oregon
Posts: 5,594
ZPI has them and I've heard of 0ne or two installed... it's just that the install/removal is somewhat intensive and time consuming, making it not the most popular for the normal modder and somewhat pricey to have done at a shop... think 500+ for the install, on top of the P&P.
#3
Japanese car manufacturers have decent flowing heads from the factory. your not gunna see gains like you do on an old chevy pushrod V8. so this would be a waste of cash if your keeping it N/A.
but if your running any forced induction, a good port and polish is very beneficial...even if you only improve the flow characteristics in a small way.
but if your running any forced induction, a good port and polish is very beneficial...even if you only improve the flow characteristics in a small way.
#4
Originally Posted by WeDriveScions
ZPI has them and I've heard of 0ne or two installed... it's just that the install/removal is somewhat intensive and time consuming, making it not the most popular for the normal modder and somewhat pricey to have done at a shop... think 500+ for the install, on top of the P&P.
#6
gasket match and smooth any rough surfaces. get that exhaust side looking like a mirror. while your in their and the head is off you should send it to the machine shop and get a 3 angle valve job. if you plan on keeping it N/A you might as well have the face resurfaced for a little higher compression.
you might see around 20-30 for all the above if your lucky.
you might see around 20-30 for all the above if your lucky.
#8
I wouldn't know. but if it were me I just find a head at junk yard and do it myself. even if I screw it up at least I stll the orginal one.
maybe find another aluminum dirt cheap head (off of whatever you got) and pratice on it.
maybe find another aluminum dirt cheap head (off of whatever you got) and pratice on it.
#9
ha - are you very experienced or are you unexperienced and leading people into believing this can be done by the unexperienced?
PnP should be done via an experienced person that has been in the scene for a while. There are tricks and tips that an experienced person will know. Don't think about doing this yourself guys (unless you know what you are doing).
PnP should be done via an experienced person that has been in the scene for a while. There are tricks and tips that an experienced person will know. Don't think about doing this yourself guys (unless you know what you are doing).
#10
Originally Posted by jwaggz82
ha - are you very experienced or are you unexperienced and leading people into believing this can be done by the unexperienced?
PnP should be done via an experienced person that has been in the scene for a while. There are tricks and tips that an experienced person will know. Don't think about doing this yourself guys (unless you know what you are doing).
PnP should be done via an experienced person that has been in the scene for a while. There are tricks and tips that an experienced person will know. Don't think about doing this yourself guys (unless you know what you are doing).
#12
thanks alot guys for the info. because i have someone that would do my port polish job for me for 400 dollars..but i m looking for a gain of 200 hp with cai, pulley, header, exhaust and safc
#14
Originally Posted by jwaggz82
anybody by any chance know if turbotrix in edison new jersey does a PnP for the scion? Im sure someone in the NJ area might know about them.
http://www.turbotrix.com/services/labor.htm
#16
Senior Member
SL Member
Scion Evolution
Gains with Stage 1 ZPi Head is advertized as 21whp gain without tune, the other (Stage 2) it's been said to be at least 32whp without tuning. I would be careful with this numbers but they seem somewhat realistic.
#18
Senior Member
SL Member
Scion Evolution
Originally Posted by njdan69
I thought all you had to do to PNP is open your intake up and pour a little sand in there and the sand will do the rest. It dosent sound all that hard to me.