GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » Technical Discussions » bigger alternator wire and dump tube
Previous thread Next thread

bigger alternator wire and dump tube


howard
Unregistered


Galant VR-4 org Post #: 13285 posted 05/09/03 03:44 PM     Remind Me!  Send Private Message   Edit Post      
Well, a week ago I broke one of the O2 housing-to-turbo bolts, so I ripped the turbo off and pulled the alternator while I was in there.

I had been going through alternators like twice a year, so I gave everything a thorough once over. I found that the stock alternator feed wire was frayed and burnt, and kinda small. I also replaced the 6 month old AutoZone reman alternator with a new (reman) Mitsu piece. I also spliced in a fresh alternator harness (the upper smaller wires with the connector). I ran 4 gauge high-strand-count copper cable from the fuse-box to the alternator, and routed it behind the radiator and shorter than stock by a foot or two.

I also added a 2.5" tubular O2 housing from Andy @ 122performance. It fits so damn nice that the stock heat shield works with it just fine and hides it. Nice work, Andy!


 - crappy stock wire

 - good condition oem wire vs 4 gauge

 - new wire attached

 - new wire crimped

 - new wire routed

 - new wire routed 2

 - back together

| | | IP: (129.120.56.72) | Report this post to a Moderator

howard
Unregistered


Galant VR-4 org Post #: 13286 posted 05/09/03 03:46 PM     Remind Me!  Send Private Message   Edit Post      
Also, for posterity, here is my 13" Spal Hi-flow fan attached to the radiator. This sucker can seriously move some air when it kicks on high. I wired it in plug-n-play style with the stock resistor pack so that it still operates on 2 speeds.

 - rad and big spal

 - nice and thin!

| | | IP: (129.120.56.72) | Report this post to a Moderator

GVR-4
Creative Name Huh?
77/1000


Galant VR-4 org Post #: 13287 posted 05/09/03 06:01 PM     Remind Me!  Send Private Message   Edit Post      
Very nice! BTW, what turbo are you using? And isn't that dump tube pretty loud for the po po?

dp

Posts: 2599 | From: Asheville, NC USA | Member Since: 04/22/02 | IP: (68.115.168.17) | Report this post to a Moderator

Minjin
Unregistered


Galant VR-4 org Post #: 13288 posted 05/09/03 08:24 PM     Remind Me!  Send Private Message   Edit Post      
Howard, good idea on the alternator wire and thanks for posting.

To answer the other poster's question, as long as your flapper is well sealed (not all are), you won't have any exhaust coming from that tube and hence no crazy noise unless you're at or near full boost.

If you pass a cop at or near full boost, you're probably violating other stuff anyways.

Mark

| | | IP: (24.54.214.19) | Report this post to a Moderator

AMG to EVO
Unregistered


Galant VR-4 org Post #: 13289 posted 05/09/03 10:16 PM     Remind Me!  Send Private Message   Edit Post      
Hey Howard, do you have the part number of that Spal fan?
Jose....

| | | IP: (205.188.208.166) | Report this post to a Moderator

howard
Unregistered


Galant VR-4 org Post #: 13290 posted 05/10/03 10:56 AM     Remind Me!  Send Private Message   Edit Post      
no, I don't know the part number, but it's the 13" High Flow Spal, 1710cfm.

Peters! Yes, the dump tube is very loud, but that's ok since I can't drive WOT around this small town all the time anyways. [Smile]

| | | IP: (129.120.56.95) | Report this post to a Moderator

DongeR
Unregistered


Galant VR-4 org Post #: 13291 posted 05/10/03 11:20 PM     Remind Me!  Send Private Message   Edit Post      
when i go to the hardware store and I want to crimp 4 guage or 2 or 1 or 0 guage wire. do i ask for any crimper or do i ask for a special kind? the crimpers i've seen/used don't really do the job. got a pic of it?
thanks
DongeR

| | | IP: (63.201.88.74) | Report this post to a Moderator

4orced4door Galant VR4.org Moderator
Out Standing


Galant VR-4 org Post #: 13292 posted 05/10/03 11:55 PM     Remind Me!  Send Private Message   Edit Post      
Where did you order that fan from and how much was it? I need one. That dump tube looks very nice as well!

Posts: 9846 | From: Raleigh, NC | Member Since: 07/19/02 | IP: (65.33.242.24) | Report this post to a Moderator

howard
Unregistered


Galant VR-4 org Post #: 13293 posted 05/10/03 01:59 PM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by DongeR615:
when i go to the hardware store and I want to crimp 4 guage or 2 or 1 or 0 guage wire. do i ask for any crimper or do i ask for a special kind? the crimpers i've seen/used don't really do the job. got a pic of it?
thanks
DongeR

DongeR, I don't have a big crimper or anything, I used 6" linesman pliers (half pliers, half wire cutters). I got like 9 feet of this nice high strand 4 gauge power wire from a local stereo shop for about $10, including gold terminals. Just find one in your area and ask. They'll usually crimp one end on for free if you want.

Paul, I ordered the Spal fan from Indy Race Cores, for a little over $100, but it took forever to receive.

| | | IP: (4.3.175.124) | Report this post to a Moderator

atsiauto
Senior Member


Galant VR-4 org Post #: 13294 posted 05/11/03 11:38 PM     Remind Me!  Send Private Message   Edit Post      
dumb question but does this wire go right to the battery +? why did you get 9 feet ? I like that dump setup and where did that dipstick come from might save a few fingetips (heat)

Posts: 1575 | From: Richmond Va, | Member Since: 10/21/02 | IP: (68.57.152.6) | Report this post to a Moderator

howard
Unregistered


Galant VR-4 org Post #: 13295 posted 05/11/03 12:31 PM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by atsiauto:
dumb question but does this wire go right to the battery +? why did you get 9 feet ? I like that dump setup and where did that dipstick come from might save a few fingetips (heat)

Sort of... the alternator wire goes to the fuse box that's mounted to the battery. I popped the fuse box back off (clips on), removed the 10mm bolt that holds the stock wire on, and the 4 gauge terminal fit up in there pretty nicely.

For more info on the tubular O2 housing, see http://www.usionline.net/122.htm or talk to Andy on this message board.

The dipstick is a new 2G DSM part that I installed, which does keep my fingers from getting burned now when I check the oil.

| | | IP: (4.3.175.124) | Report this post to a Moderator

#258
Unregistered


Galant VR-4 org Post #: 13296 posted 05/13/03 05:28 PM     Remind Me!  Send Private Message   Edit Post      
Not to be an a-hole, But I would not use feed wire from a audio store. Go to an electrical supply store and ask for 4ga. THHN or THHW wire and lugs for the connectors. The wire is rated for gas and oil exposure, UV and ozone stable and has a much tougher jacket. Also has a higher ampacity than common insulated so you should be able to use 6ga. Just my 2 cents.

| | | IP: (151.198.226.2) | Report this post to a Moderator

Turbo4door1
Paid to pewp


Galant VR-4 org Post #: 13297 posted 05/13/03 06:17 PM     Remind Me!  Send Private Message   Edit Post      
Howard -- have you driven the car much with that O2 dump on it? Just asking because a friend of mine (Ian M on this board) installed a very similar dump setup, and with only a few hard passes, it was starting to melt the wires that run along the lower core support, as well as the drain plug on the bottom of his almost new Modine radiator. He ended up welding an elbow to the bottom of it to direct the air back beside the downpipe. Just curious.

Posts: 1519 | From: Kearneysville, WV | Member Since: 02/20/03 | IP: (63.188.80.170) | Report this post to a Moderator

DongeR
Unregistered


Galant VR-4 org Post #: 647129 posted 05/16/08 09:02 PM     Remind Me!  Send Private Message   Edit Post      
not to bring up a old thread b/c thats what you guys would do...

Anywho my question is that his has a red cover to tell him its the "B" post now the one I have on my car looks like this.



Which when I check for continuity for both of the spade connectors, it goes to this on the positive battery post where the fuses are located (100 amp fuse)



My question is..
how do I know which one is which? or it doesn't matter? I know we have a "B" terminal and a L and IG for the connector on the link below. shouldn't there be one more?

click

If I'm reading correctly, are you still using the old connectors or just letting them hang? Do i just attach a 4gauge wire with a fuse to the + battery fuse location? or do I attach the old wires with the new ones?

| | | IP: (76.205.251.20) | Report this post to a Moderator

iceman69510 Galant VR4.org Moderator
Turn Right Racing
855/2000


Galant VR-4 org Post #: 647176 posted 05/16/08 11:43 PM     Remind Me!  Send Private Message   Edit Post      
Did both wires go to the same place or different places on the fuse holder? Moot point really, as it doesn't matter. They are alternator voltage output.

On the terminals, different makers and different cars do it differently. More modern cars utilize ECU control of the alternator, and that is likely where the "sense" wire would go. Mitsus now use 4 wires, but ours only use two. The IG in the diagram lights off the alternator, the L (light) supplies the charge light.

That alternator in the example pic is a Honda Denso. I have one similar in my race car and use only the IG and B+ wires in that case.



91 VR4 855 Nile Black
92 VR4 828 Belize Green-SOLD
91 VR4 115 Nile Black -SOLD

Posts: 10684 | From: Michigan | Member Since: 03/05/01 | IP: (65.73.152.59) | Report this post to a Moderator

iceman69510 Galant VR4.org Moderator
Turn Right Racing
855/2000


Galant VR-4 org Post #: 647177 posted 05/16/08 11:46 PM     Remind Me!  Send Private Message   Edit Post      
If you are no longer connecting those two wires at the alternator end, don't connect them to anything at the fuse block. Move them and wrap them. Connect the new wire in their place.



91 VR4 855 Nile Black
92 VR4 828 Belize Green-SOLD
91 VR4 115 Nile Black -SOLD

Posts: 10684 | From: Michigan | Member Since: 03/05/01 | IP: (65.73.152.59) | Report this post to a Moderator

Kenny_Kline
belligerent idiot
1370/2000


Galant VR-4 org Post #: 647186 posted 05/17/08 12:20 AM     Remind Me!  Send Private Message   Edit Post      
I actually have broken/frayed wires everywhere on the alternator. I dont know what goes where so if you can maybe get a pic of the side and where each wire goes, that would be a big help to me.



Kenny @ Dynotech Tuning
[email protected]







Posts: 789 | From: Seekonk, MA | Member Since: 12/27/07 | IP: (24.91.107.92) | Report this post to a Moderator

DongeR
Unregistered


Galant VR-4 org Post #: 647205 posted 05/17/08 03:03 AM     Remind Me!  Send Private Message   Edit Post      
Quoting iceman69510:

Did both wires go to the same place or different places on the fuse holder? Moot point really, as it doesn't matter. They are alternator voltage output.





Both wires in the first picture went to the positive power wire on the battery on the same place 100 amp location

I thought we had a noise filtering wire?

| | | IP: (76.205.251.20) | Report this post to a Moderator

iceman69510 Galant VR4.org Moderator
Turn Right Racing
855/2000


Galant VR-4 org Post #: 647251 posted 05/17/08 10:05 AM     Remind Me!  Send Private Message   Edit Post      
I believe Mitsu just uses two wires for the same carrying capacity without such a large wire size not normally used anywhere else on the vehicle.

I have never seen filtering wire on that application.



91 VR4 855 Nile Black
92 VR4 828 Belize Green-SOLD
91 VR4 115 Nile Black -SOLD

Posts: 10684 | From: Michigan | Member Since: 03/05/01 | IP: (65.73.152.148) | Report this post to a Moderator

FlyingEagle Galant VR4.org Moderator
Eager Beaver


Galant VR-4 org Post #: 647368 posted 05/17/08 05:32 PM     Remind Me!  Send Private Message   Edit Post      
Did he mean to say "shielded" wiring?



C53A 1 of the ~1500

Posts: 1611 | From: THE Ottawa | Member Since: 03/05/05 | IP: (99.241.62.56) | Report this post to a Moderator

DongeR
Unregistered


Galant VR-4 org Post #: 647431 posted 05/17/08 09:11 PM     Remind Me!  Send Private Message   Edit Post      


The picture above shows the positive wire going to the "B" post. what is the post above the oil filter used for?

| | | IP: (76.233.216.16) | Report this post to a Moderator

iceman69510 Galant VR4.org Moderator
Turn Right Racing
855/2000


Galant VR-4 org Post #: 647442 posted 05/17/08 09:43 PM     Remind Me!  Send Private Message   Edit Post      
IIRC, it mounts a bracket that hold some wires, but not positive anymore as I don't have the stock alternator anymore on my car.



91 VR4 855 Nile Black
92 VR4 828 Belize Green-SOLD
91 VR4 115 Nile Black -SOLD

Posts: 10684 | From: Michigan | Member Since: 03/05/01 | IP: (65.73.152.204) | Report this post to a Moderator

Qship
Unregistered


Galant VR-4 org Post #: 647513 posted 05/18/08 03:36 AM     Remind Me!  Send Private Message   Edit Post      
Do NOT attach any "hot" wire to that post; it's threaded directly into the alternator housing, aka grounded. The positive power terminal on the alternator has an insulator around it (brown thing behind the wire terminal in the pic) to keep the electricity from shorting through the alternator case.

| | | IP: (24.21.152.15) | Report this post to a Moderator

DongeR
Unregistered


Galant VR-4 org Post #: 647574 posted 05/18/08 11:23 AM     Remind Me!  Send Private Message   Edit Post      
i c, would it be alright to attach a ground wire to it and make a new ground somewhere closer?

| | | IP: (75.37.39.126) | Report this post to a Moderator

Qship
Unregistered


Galant VR-4 org Post #: 648083 posted 05/19/08 05:33 PM     Remind Me!  Send Private Message   Edit Post   
I don't see why not; it might actually be a good idea, instead of the alternator having to ground itself through the bracket to the block and then to an engine ground.

| | | IP: (24.21.152.15) | Report this post to a Moderator


Pages: 1
Previous thread Next thread

Extra information
0 registered and 22 anonymous users are browsing this forum.

Galant VR4.org Moderator:  curtis, steve, atc250r, jcgalntvr4-244, cheekychimp, jepherz, Rausch, toybreaker, iceman69510, pot, FlyingEagle 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 6815

Rate this thread


News & Events: News | Events
Galant VR-4: Newbies | General VR4 Discussions | Technical Discussions | How To and Info Archive
Marketplace: Parts For Sale | Cars For Sale | Good Guys | Bad Guys
Community: Members' Showcase

Contact Us | Privacy statement GalantVR-4.org

Generated in 0.275 seconds in which 0.207 seconds were spent on a total of 14 queries. Turbo powered.


Hertz's Galant VR-4 Page