4g61t.org

Specializing in the 3g CSM
It is currently Wed Jan 23, 2019 2:34 pm

All times are UTC-05:00




Post new topic  Reply to topic  [ 45 posts ]  Go to page Previous 1 2 3
Author Message
 Post subject:
PostPosted: Mon Jan 21, 2008 1:35 pm 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
hi guys, i am new to this forum. i recently aquired a mirage hatch. code: C53A MNDF. Its got a 4G61T and i want to build some power, probably in the 250hp range. i am taking it bit by bit. i just got an adjustable fuel regulator and was wondering what's the best psi i should operate at? the car is currently on 10psi of boost.


Top
   
 Post subject:
PostPosted: Mon Jan 21, 2008 2:03 pm 
Offline
The Silent Administrator
User avatar

Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9377
Location: Ottawa, ON, Canada
Run it at factory stock base pressure.
Manuals can be obtained here: www.lilevo.com/mirage/
Look for the 89 Colt Turbo labelled manual folder.
You have a rising rate 1:1 for boost, FPR right?

The most basic of mods can be cross over from the 1G platform which is the same engine setup mostly and alot of the same external parts.
Check out Vfaq.com for the best entry level mods.

Are you still on the factory turbo setup, 11b?
Stock exhaust, etc. We will need to know these things to better help you along.

First step beyond upping the boost with a MBC (Manual Boost Controller), is to install a FMIC setup, perform a fuel pump rewire kit install (also Vfaq material), and then look at cleaning up the exhaust and a few things in the engine bay.


Top
   
 Post subject:
PostPosted: Mon Jan 21, 2008 3:14 pm 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
THE CAR IS STILL STOCK. EVERYTHING ORIGINAL. MY NEXT STEPS WERE GUAGES (OIL PRES & AIR FUEL RATIO), COIL OVERS, SAFC 1, CLUTCH & PRESSURE PLATE UPGRADE, FMIC UPGRADE WITH PIPING AND BOV, WALBRO 255 FUEL PUMP THEN EXHAUST SYSTEM (NOT SURE OF THE SIZE). A STEP UP IN BOOST OR A TD05 16G UPGRADE WHEN ALL OF THE OTHER STEPS ARE IN PLACE. HOW DOES THAT SOUND? ANY ADVICE OR INTERJECTION WILL BE GREATLY APPRECIATED.


Top
   
 Post subject:
PostPosted: Mon Jan 21, 2008 4:07 pm 
Offline
2nd Banana
User avatar

Joined: Wed Dec 28, 2005 1:16 pm
Posts: 9369
Location: San Diego, CA.
Quote:
THE CAR IS STILL STOCK. EVERYTHING ORIGINAL. MY NEXT STEPS WERE GUAGES (OIL PRES & AIR FUEL RATIO), COIL OVERS, SAFC 1, CLUTCH & PRESSURE PLATE UPGRADE, FMIC UPGRADE WITH PIPING AND BOV, WALBRO 255 FUEL PUMP THEN EXHAUST SYSTEM (NOT SURE OF THE SIZE). A STEP UP IN BOOST OR A TD05 16G UPGRADE WHEN ALL OF THE OTHER STEPS ARE IN PLACE. HOW DOES THAT SOUND? ANY ADVICE OR INTERJECTION WILL BE GREATLY APPRECIATED.
A 16G would be a good upgrade, but it would require larger injectors if you really want to use it to its fullest. 550cc's are the bare minimum. EVO 8-9 injectors are a popular swap. At the same time it would also be good to upgrade the MAF sensor to a 2g Eclipse unit, or go with a GM MAF Translator (i happen to prefer to MAF Translator).

Also, turn off your caps lock and add a location in your profile, thanks.

_________________
91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

http://www.facebook.com/captaintonus


Top
   
 Post subject:
PostPosted: Tue Jan 22, 2008 10:45 am 
Offline
The Silent Administrator
User avatar

Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9377
Location: Ottawa, ON, Canada
I forgot to add that we need the VIN for the VIN Registry, delinquent1!
If it's a Mirage, I just need the VIN to decode the car and options, but I need more to get a complete listing from Plymouth/Dodge. PM me if you are interested and I'll tell you more. Oh, General Discussion sticky has the VIN Registry post if you are curious.


Top
   
 Post subject:
PostPosted: Wed Jan 23, 2008 8:41 am 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
i will pm the vin info for u a bit later today. thanks for the help. the other problem i have is that where i live i believe that there are only two of these vehicles in the entire country. the evo 8-9 injectors wont be a problem to source but the maf's and other parts won't be easy. any help in this department will be greatly appreciated.


Top
   
 Post subject:
PostPosted: Fri Jan 25, 2008 8:57 am 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
larger ports and valves? should i get it done or is there a head that could directly replace mine?


Top
   
 Post subject:
PostPosted: Fri Jan 25, 2008 11:24 am 
Offline
CSM Junkie

Joined: Sun May 27, 2007 12:21 pm
Posts: 929
Location: Kennesaw, GA
You can get a 4G67 head of a Hyundai Elantra, they have the 4G63 head port sizes and the same combustion chamber size as your 4G61T head. This way you get the big ports, while keeping your compression the same. People have put the 4G63 head on a 4G61T bottom end, but it does lower the compression a good bit.


Top
   
 Post subject:
PostPosted: Fri Jan 25, 2008 10:12 pm 
Offline
The Silent Administrator
User avatar

Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9377
Location: Ottawa, ON, Canada
Quote:
People have put the 4G63 head on a 4G61T bottom end, but it does lower the compression a good bit.

Understatement of the century do to the lowest compression I think we could find over the last 40 years of mass produced automobile engines! Not razzing ya, just stating that loosing all that bottom end and having a completely improperly sized combustion chamber for the mated parts, will yield some not so good results from an "upgrade" standpoint. Grab that 4G67 head!


Last edited by Flying Eagle on Wed Jan 30, 2008 10:42 am, edited 1 time in total.

Top
   
 Post subject:
PostPosted: Wed Jan 30, 2008 8:52 am 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
sorry about the late response got a little tied up. the 4g67 head. is it turbo or n/a? if turbo i have never heard of that and don't think we got that over here. also i looked on an elantra head that a buddy of mine has and it has 1.8l 3c enscribed between the cam gears on the aluminum and mine has 18 with a 5 below it in the same location, what does this mean?


Top
   
 Post subject:
PostPosted: Wed Jan 30, 2008 10:46 am 
Offline
The Silent Administrator
User avatar

Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9377
Location: Ottawa, ON, Canada
Check and compare to what we know from this post:
http://forum.4g61t.org/viewtopic.php?t=14041

You should have an NA 4g67 head, but it doesn't matter what type NA or turbo, as NA heads can be used and a port at the front passenger side of the head can be tapped for oil port supply to the turbo setup. Some NA heads already have the oil journal plug with allen key head, so you may get lucky, but not all came this way as it may just be a Mitsu thing because they are the only ones with turbo and NA versions of the same head.


Top
   
 Post subject:
PostPosted: Wed Jan 30, 2008 12:50 pm 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
thanks for the info and link man. i am learning new things every day. i guess this means that i dont have to go looking for a 4g67 head. :lol: guess i could just mozey on along with my project.


Top
   
 Post subject:
PostPosted: Thu Jan 31, 2008 9:52 am 
Offline
The Silent Administrator
User avatar

Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9377
Location: Ottawa, ON, Canada
Oh, almost forgot to remind you about the VIN('s)! 8)


Top
   
 Post subject:
PostPosted: Thu Jan 31, 2008 12:36 pm 
Offline
Restricted Newbie

Joined: Tue Jan 15, 2008 9:02 am
Posts: 7
Location: Trinidad & Tobago (the caribbean)
i pm'd the info as on the plate on the fie wall any additional info just ask.


Top
   
PostPosted: Tue May 04, 2010 3:43 pm 
Offline
Questionable...

Joined: Sat Nov 05, 2005 11:13 am
Posts: 25
Location: Toronto, Canada
best is to start of with a stock turbo set up and just work yourself up by replacing some stuff with upgrades. Cams, intake manifold etc...


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 45 posts ]  Go to page Previous 1 2 3

All times are UTC-05:00


Who is online

Users browsing this forum: No registered users and 6 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

Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Limited