1NZ port & polish - Page 4 - Toyota Yaris Forums

acrbill · 03-17-2007, 01:34 PM

Quote:

Originally Posted by ChinoCharles

Now tell me what you'd do.

You have to ask yourself this. Say by some miracle of God you toss a few mods together and go from 85whp to 105whp. I'm sure there has to be some sense of satisfaction there but in the end you still have a 105whp car that is slower than 99% of cars on the road.

I guess I just don't understand what your motivation is. Save up 3k and get a nice supercharger kit that will allow you to gain a nice chunk of power.

Poorboy · 03-17-2007, 01:49 PM

Hey, you're only young and cool once, so do it. Have fun with it and I think alot of your buddies with the 550 hp will appreciate the work you're putting into this car. If you fck it up i'll give you a lift every once in a while.

ChinoCharles · 03-17-2007, 01:50 PM

Quote:

Originally Posted by Poorboy

Hey, you're only young and cool once, so do it. Have fun with it and I think alot of your buddies with the 550 hp will appreciate the work you're putting into this car. If you fck it up i'll give you a lift every once in a while.

Ohio in a nutshell. I'm starting to like it here.

Bill, there are a hundred grand master plans swirling in my noggin, but honestly it all boils down to one thing... you're only young once, and I'm going to try everything I can possibly think of to not be a regular working stiff while I've still got time. Playing in my band and trying to build parts for this car can both make me money and neither feels like work, so for right now in my life these are my focuses.

The chances of me getting lucky in either are slim to none, but there is a chance. You'll never succeed if you never try.

Oh, and fuck school. I've had it up to my earlobes with the status quo.

Black Yaris · 03-17-2007, 01:50 PM

Poorboy, you joining us out at Chino's this weekend as well?

ChinoCharles · 03-17-2007, 01:54 PM

This shits getting deep. Should I buy a keg?

Galavoxx · 03-17-2007, 01:54 PM

I agree with Black Yaris. You can get xA, xB, and echo heads all day. I can't speak to whether or not it's the same exact head but if those heads will bolt up and have the same valve size, or you even want to go with bigger valves, I say get one. You wont have be without your car while the work is done and the shop wont feel rushed to get the thing back to you. They can "spend some time with it", run their fingers through it's openings, probe it, make it flow, whatever has to be done to get it right.

If they do fuck up, which is unlikely since your guy sounds like a pro, then you wont have to wait to get your car back while you source another head. Just toss your new head on once the P&P is done. Your car wont be out of service for more than a few hours. And when your new head works and makes 15 or 20hp, you pay to have your extra head P&P'd and sell it to me at a discounted price.

Seriously though, if I had this opportunity, I would snatch it up in a second.

Black Yaris · 03-17-2007, 02:01 PM

Quote:

Originally Posted by ChinoCharles

This shits getting deep. Should I buy a keg?

Fuck the keg, don't you gotta key to the country club?

ChinoCharles · 03-17-2007, 02:02 PM

Hell no. They know better than that!

Black Yaris · 03-17-2007, 02:06 PM

Back on topic... I will get Head for everyone... a 1NZ head that is Echo, XA, XB all day from car-part.com... plus I have some other hookups on getting complete drivetrains. Since Toyota's never blowup these drivetrains are CHEEP, I think I could get us a whole damn car stuffed in the rear for under a grand (including shipping, taxes, BS fees)

ChinoCharles · 03-17-2007, 02:11 PM

Quote:

I will get Head for everyone

Glad you didn't say give.

That is a very interesting idea. What is that 6 speed going for on there?

Black Yaris · 03-17-2007, 02:12 PM

http://www.yarisworld.com/forums/showthread.php?t=4386

jt258 · 02-07-2009, 04:22 PM

if you want something to make the 1nz go a bit faster try bullfrog (gude performance) they make cams and valvesprings for the 1nz-fe engine Im thinking about getting this equipment for my car.

Tamago · 02-07-2009, 10:10 PM

Quote:

Originally Posted by Razr

There's nothing you can do to a 1NZ-FE for that money that would get remotely close

i'm making 155whp and 150wtq and i spent around 1200 out of pocket..

that's more torque than a 2ZZGE makes, and not far off in WHP at the wheels..

you can't touch a 2ZZ + swap labor for 1200

Kaotic Lazagna · 02-07-2009, 11:50 PM

oh man, this thread is almost 2-years old. LOL.

Midon · 02-08-2009, 01:59 AM

Quote:

Originally Posted by Razr

Could have difficulties lining up a decent 3S-GTE these days, AFAIK they've been out of production for 8+ years now? been a while since Ive seen a GT-4 or MR2, so could be wrong :)

I was thinking more along the lines of the 4WD system from the 1.3L JDM model, and of course DSG is just a pipe dream - the only Jap brand I know of that's even hinted at one is Honda in the concept/proposed 5dr Civic Type-R :(

Just a little info on the 3S-GTE. They can still be purchased from Jasper. I bought one not to log ago to replace in my MR2 that had 260k miles on it and fired piston rings. I did this when I bought the car and spent 5,000 USD on every thing. Oh and I payed 100 bucks for the car hehehe.

ka0sx · 02-08-2009, 02:15 AM

I didnt bother reading all the posts between page one to here.

so anyways here it goes.

Porting, matching the diameter of the intake and exhaust ports to the same size as the manifold ports.
Porting/polishing the intake is not good for the term of gas mileage as the porous edges in the intake ports from the sand mold in the casting process provides terbulance that helps atomize the fuel. Doing the intake might yield a marginal increase in horsepower as will cram a bit more air in from the smother flow.

Exhaust matching can be helpful in getting rid of gasses, but this is virtualy useless and you will lose your back pressure vortex and lose some fuel economy as you will get more through draft on the valve overlap.

Performance wise, if you do both intake and exhaust you might yield about 2-8% gain in horsepower depending on the engine, Im not sure how the 1nz would fair as i have never had one apart to see the over laps and how rough the ports are.

However port and polishing IS BEST on boosted engines where pure performance is in mind, It will maximize potential flow in to the engine, and the exhaust port will help quickly vent out the increased surge of gas.

Moose,

also would like to add that increasing valve seat angles decreases longevity of the seat as there is less contact point when the spring snaps the valve back at higher rpm.

jkt_lovely · 02-11-2009, 11:18 AM

I've done Port and Polish + 3 angle Valve Job on my Yaris....
DEFINITELY didnt lose any low end...
Felt more starting 2.5K rpm onwards....

Reason for doing it: Labor is cheap over here... unlike USA... cost only around $250...
and its WAY more feel - able than Muffler... Intake... bla bla bla...

Tamago · 02-11-2009, 11:41 AM

Quote:

Originally Posted by jkt_lovely

I've done Port and Polish + 3 angle Valve Job on my Yaris....
DEFINITELY didnt lose any low end...
Felt more starting 2.5K rpm onwards....

Reason for doing it: Labor is cheap over here... unlike USA... cost only around $250...
and its WAY more feel - able than Muffler... Intake... bla bla bla...

do you know Alexander Rungkat?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What type of head unit with AUX port?	ebowers83	In Car Entertainment + Electronics (audio / video / alarm)	3	11-06-2006 10:21 AM
ODB-II port location?	eTiMaGo	DIY / Maintenance / Service	6	09-24-2006 12:27 PM
Port A Walls	tomjasz	Wheels, Tires and Suspension Forum sponsored by The Tire Rack	33	09-04-2006 04:20 PM
[Detail] [as to make ] Auto Laudering	Sérgio Barros	Wash, Wax, Detailing, Exterior Repairs	4	08-22-2006 03:56 AM

03-17-2007, 01:49 PM	#56
Poorboy Drives: 07 liftback Join Date: Feb 2007 Location: NE Ohio Posts: 26	Hey, you're only young and cool once, so do it. Have fun with it and I think alot of your buddies with the 550 hp will appreciate the work you're putting into this car. If you fck it up i'll give you a lift every once in a while.

03-17-2007, 01:50 PM	#58
Black Yaris der Zeck View User's Garage Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006 Location: Toledo, OH Posts: 5,231	Poorboy, you joining us out at Chino's this weekend as well?

03-17-2007, 01:54 PM	#59
ChinoCharles Banned Drives: LB Join Date: Jul 2006 Location: OH Posts: 7,787	This shits getting deep. Should I buy a keg?

03-17-2007, 01:54 PM	#60
Galavoxx View User's Garage Drives: Yaris Hatch Join Date: Oct 2006 Location: San Francisco Posts: 397	I agree with Black Yaris. You can get xA, xB, and echo heads all day. I can't speak to whether or not it's the same exact head but if those heads will bolt up and have the same valve size, or you even want to go with bigger valves, I say get one. You wont have be without your car while the work is done and the shop wont feel rushed to get the thing back to you. They can "spend some time with it", run their fingers through it's openings, probe it, make it flow, whatever has to be done to get it right. If they do fuck up, which is unlikely since your guy sounds like a pro, then you wont have to wait to get your car back while you source another head. Just toss your new head on once the P&P is done. Your car wont be out of service for more than a few hours. And when your new head works and makes 15 or 20hp, you pay to have your extra head P&P'd and sell it to me at a discounted price. Seriously though, if I had this opportunity, I would snatch it up in a second.

03-17-2007, 02:02 PM	#62
ChinoCharles Banned Drives: LB Join Date: Jul 2006 Location: OH Posts: 7,787	Hell no. They know better than that!

03-17-2007, 02:06 PM	#63
Black Yaris der Zeck View User's Garage Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006 Location: Toledo, OH Posts: 5,231	Back on topic... I will get Head for everyone... a 1NZ head that is Echo, XA, XB all day from car-part.com... plus I have some other hookups on getting complete drivetrains. Since Toyota's never blowup these drivetrains are CHEEP, I think I could get us a whole damn car stuffed in the rear for under a grand (including shipping, taxes, BS fees)

03-17-2007, 02:12 PM	#65
Black Yaris der Zeck View User's Garage Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006 Location: Toledo, OH Posts: 5,231	http://www.yarisworld.com/forums/showthread.php?t=4386

02-07-2009, 04:22 PM	#66
jt258 View User's Garage Drives: 10' corolla ce Join Date: Oct 2008 Location: HOUSTON Posts: 106	if you want something to make the 1nz go a bit faster try bullfrog (gude performance) they make cams and valvesprings for the 1nz-fe engine Im thinking about getting this equipment for my car.

02-07-2009, 11:50 PM	#68
Kaotic Lazagna View User's Garage Drives: '14 GT86, '08 Vitz Join Date: Dec 2006 Location: Central Valley, CA Posts: 9,873	oh man, this thread is almost 2-years old. LOL.

02-08-2009, 02:15 AM	#70
ka0sx Drives: bone f*ing stock Join Date: Dec 2008 Location: CA east bay Posts: 234	I didnt bother reading all the posts between page one to here. so anyways here it goes. Porting, matching the diameter of the intake and exhaust ports to the same size as the manifold ports. Porting/polishing the intake is not good for the term of gas mileage as the porous edges in the intake ports from the sand mold in the casting process provides terbulance that helps atomize the fuel. Doing the intake might yield a marginal increase in horsepower as will cram a bit more air in from the smother flow. Exhaust matching can be helpful in getting rid of gasses, but this is virtualy useless and you will lose your back pressure vortex and lose some fuel economy as you will get more through draft on the valve overlap. Performance wise, if you do both intake and exhaust you might yield about 2-8% gain in horsepower depending on the engine, Im not sure how the 1nz would fair as i have never had one apart to see the over laps and how rough the ports are. However port and polishing IS BEST on boosted engines where pure performance is in mind, It will maximize potential flow in to the engine, and the exhaust port will help quickly vent out the increased surge of gas. Moose, also would like to add that increasing valve seat angles decreases longevity of the seat as there is less contact point when the spring snaps the valve back at higher rpm.

02-11-2009, 11:18 AM	#71
jkt_lovely I've made a post! Drives: Yaris S Limited Join Date: Feb 2009 Location: Indonesia Posts: 1	I've done Port and Polish + 3 angle Valve Job on my Yaris.... DEFINITELY didnt lose any low end... Felt more starting 2.5K rpm onwards.... Reason for doing it: Labor is cheap over here... unlike USA... cost only around $250... and its WAY more feel - able than Muffler... Intake... bla bla bla...