WTK: about port & polish engine

pugman18 · Posted: Mon Jul 21, 2008 4:09 pm Post subject: WTK: about port & polish engine

i wanna know

if i port and polish my stock 1.6 engine..will i see any gains?
and is dere anyone in trinidad who can port and polish a 1.6peugeot engine for me properly??

i want to jus get a lil extra hp from the engine and i want no turbos

already put headers and intake.

crossdrilled · Posted: Mon Jul 21, 2008 4:48 pm Post subject:

I see an article in Wheels Jamaca that might be of interest. Search them. However, they talking about actually sanding it down (the rough edges) mechanically with rotary tools.

The best method is to extrusion hone, but don't know anywhere that does that in trinidad. You will have to play with your ECU settings when finished as the intake characteristics will change. You might be running lean afterwards.

Dave · Posted: Tue Jul 22, 2008 8:05 am Post subject:

honestly the gains may be minimal compared to the cost of doing that work
modern heads gain very little wen kept in the stock na form unless peugeot made a terrible flwoing head
research here would be your friend
as a general guideline, u can go fully polished on the exhaust but u need a lil turbulence on the intake, usually around 220grit or so

Sanctifier · Posted: Tue Jul 22, 2008 1:10 pm Post subject:

^ ^ ^ Good advice there.

super_cadet · Posted: Thu Jul 24, 2008 4:54 pm Post subject:

Isnt the port and polish for taking out irregularities associated with mass production casting method of making the heads??

I was contemplating doin that as well seeing i have to take my head down to change out seals..

dmitc · Posted: Thu Jul 24, 2008 5:21 pm Post subject:

super_cadet · Posted: Thu Jul 24, 2008 5:24 pm Post subject:

lol..true true..but i remember readin a post where ryan garcia recommended a guy to do a 3angle valve job on a customer's car..i wanna find out who that machine guy is..i would trust that one to do the work for sure

dmitc · Posted: Thu Jul 24, 2008 5:26 pm Post subject:

gt4tified · Posted: Fri Jul 25, 2008 1:23 am Post subject:

Gains? Definitely. lets start with your gas bill. Laughing

super_cadet · Posted: Fri Jul 25, 2008 12:46 pm Post subject:

gt4tified, Why would a port & polish raise your gas bill???? Confused

It just increases the efficiency of air flow thru the cylinders....Is ur damn right foot will cause the increase in gas bill..lol Laughing

gt4tified · Posted: Fri Jul 25, 2008 11:22 pm Post subject:

super_cadet · Posted: Sat Jul 26, 2008 1:06 am Post subject:

gt4tified,Air is measured before passing thru the head sooo..ummm..ur mistaken..

It actually increases the volumetric efficiency of the engine..more hp for same amt of mixture

gt4tified · Posted: Sat Jul 26, 2008 12:29 pm Post subject:

Well super_cadet I was talking about blown engines where the increased volumetric efficiency provides feedback via the turbo to the amount of air induced.

Rodn3y · Posted: Mon Jul 28, 2008 7:18 am Post subject:

so on a normal application (non-turbo) would porting the intake result in greater gas consumption?

i was thinking that more air for the same amout of gas = leaner burn and the O2 sensor on the exhaust manifold will tell the ecu to send more fuel to the engine because its burning too lean which results in greater gas consumption.

right or wrong?

Knight1 · Posted: Mon Jul 28, 2008 8:14 am Post subject:

sixthspeed · Posted: Fri Aug 01, 2008 4:58 pm Post subject:

if some one has a template of a head that has be flow tested to PROVE that there has been gains to begin with. It will make no sense do any kind of sanpapering as you will not be sure how well the air is flowing

in short, no flow bench htne u r wasting you time.

gt4tified · Posted: Sat Aug 02, 2008 3:07 am Post subject: