TeamSwift

Home of the Suzuki mini-compacts ! Your Home for all things Suzuki Swift, Geo Metro, Holden Barina, Chevy Sprint, Pontiac Firefly, and Suzuki Cultus. TeamSwift is a technical performance oriented community!
It is currently Thu Apr 24, 2014 12:06 am

Underbody braces, turbos and more!

All times are UTC - 5 hours




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Sat Jan 28, 2012 8:44 am 
Offline

Joined: Thu Nov 03, 2011 8:51 am
Posts: 26
Location: Ontario Canada
Well it looks like this car is going to get some attention and I want to add a few more skills to my list. I am looking at getting a junk year intake manifold and polising the air intake and exhaust ports my self to see if I can get an improvement. I have sourced out some 3-1 headders and a nice exhaust setup either a magniflow or flowmaster with dual tips. I have a G10 so I am not looking for insane gains just a bit. And I think I am getting carried away lol damn this car modding bug.

_________________
92 Geo Metro Old Blue for now hoping to change it too Mitternacht in the summer. Current Mods K&N drop in, 92-95 B16 alluminum radator with fan for a B16, trans cooler for a 92-95 civic, SONy Xplode speakers in dash, led brake light. 2002 PTCREEPER not Cruiser.


Top
 Profile  
 
PostPosted: Sat Jan 28, 2012 11:18 am 
Offline
banned and still posting
User avatar

Joined: Mon Dec 01, 2003 12:47 pm
Posts: 10795
Location: columbus, ohio
i consider polishing the port runners on the intake manifold of a throttle body injected engine to be counter productive. the injector fires directly into the floor of the small plenum on those manifolds where the fuel puddles and largely requires the heating of the manifold to afford vaporization.

the inducted air/fuel mix benefits from irregularities on the runner walls to perturb the air to help the mixture. polishing the walls gets rid of that.

i don't mind a little work to knock down big casting peaks or a little effort to port match but i always stop with a final finish of 80 grade sandpaper on the port runner walls.

a little polishing on the exhaust side is okay, it helps to keep carbon from building up in the ports and you want to keep gas velocity up on that side. still, all in all i've seen little in the way of huge performance gains just from that work. on the 3 banger, it seems that the cumulative effects of all the little tweaks improves performance but it's hard to put any single thing ahead of another on the list.

so, my take on polishing the intake manifold is that the time is better spent on something else. get a 3 tech performance cam, improve the exhaust system, remove the air filter bridge and install a less restrictive air filter system, install an aluminum under drive accessory pulley, install a flywheel and clutch from a g13 (and lighten the flywheel if that work is in your budget.)

my 2 cents. :D

_________________
1991 Blue Geo Metro Convertible highly modified 1.0L Turbo3 5 spd. - 1991 Red Geo Metro Convertible customized with a Twincam 5 spd. - 1992 White Suzuki Swift GT

My Turbo3 Project
My Cardomain Page -Ol' Blue
My YouTube Channel
My Photo Gallery
SAAB Sonett II


Top
 Profile  
 
PostPosted: Sun Jan 29, 2012 2:18 am 
Offline

Joined: Thu Nov 03, 2011 8:51 am
Posts: 26
Location: Ontario Canada
Ok kool like I said just asking the questions now so i dont waste my cash again this car is mostly a driver not looking for huge gains but I want to learn as much as possible before I start cutting into the motor.

_________________
92 Geo Metro Old Blue for now hoping to change it too Mitternacht in the summer. Current Mods K&N drop in, 92-95 B16 alluminum radator with fan for a B16, trans cooler for a 92-95 civic, SONy Xplode speakers in dash, led brake light. 2002 PTCREEPER not Cruiser.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group