GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » General VR4 Discussions » 89Mirageman Throttlebody Modification
Previous thread Next thread

89Mirageman Throttlebody Modification


pot
It's a twee shaker----choot him choot him
182/1000


Galant VR-4 org Post #: 1238605 posted 07/18/17 12:06 PM     Remind Me!  Send Private Message   Edit Post      
This short post took some time to put together but I'd like to publicly thank Chris a la 89Mirageman for his professionalism, eye for detail, and for helping a fellow forum member out.

At the time and still to this day, I have yet to make the leap to Speed Density so all those pesky vacuum ports are still running rubber vacuum caps to include the three on my throttlebody. One day I had noticed a post Chris had made where he decided to modify his throttle body by removing his vacuum ports and sealing them off with set screws. It was such a clean and professional looking install I decided one day I'd follow suit. Chris being the gentleman that he is, was kind enough to explain the process via PM and on the horn. I didn't feel comfortable with performing this modification on my throttlebodys.com throttlebody so once again, I phoned up Chris and sure enough he offered to square me away.

In less than 3 days I received the following:







I was pretty pleased and couldn't have been happier with the outcome. Thank you Chris!



182/1000

Posts: 1392 | From: Fayetteville, NC | Member Since: 10/28/03 | IP: (66.87.132.243) | Report this post to a Moderator

strokin4dr
fighting them with a large needle
1280/2000
1135/2000


Galant VR-4 org Post #: 1238609 posted 07/18/17 12:29 PM     Remind Me!  Send Private Message   Edit Post      
Cool to see someone else doing this. I hate the rubber caps that end up dry rotted in no time.
Since I like to keep a functioning ISC, I've also been machining off the water lines to the FIAV and then capping the area off with a freeze plug. Cleans it up the tb nicely while keeping all the function I need.

Good job on looking out for out VR4 brothers, Chris!

-Ryan


Posts: 2703 | From: Savannah, GA | Member Since: 08/30/05 | IP: (69.245.80.109) | Report this post to a Moderator

89Mirageman
Senior Member


Galant VR-4 org Post #: 1238620 posted 07/18/17 10:10 PM     Remind Me!  Send Private Message   Edit Post      
Thanks guys! I really wish I had the skills to do videos like TurboTom, Jafro ,Joe Wrenches & many others. Maybe one of these days I'll look into it a bit further. Got to start somewhere, you know.

As far as the coolant fittings, doesn't it take the car forever to idle down in the colder months with those bypassed? I do agree it looks a lot cleaner though.



94 Eagle Summit DL coupe
98 Mitsubishi Mirage DE sedan
15 Mitsubishi Mirage ES hatch

Posts: 2485 | From: Stantonsburg, NC | Member Since: 07/05/06 | IP: (65.41.185.13) | Report this post to a Moderator

strokin4dr
fighting them with a large needle
1280/2000
1135/2000


Galant VR-4 org Post #: 1238642 posted 07/20/17 10:49 AM     Remind Me!  Send Private Message   Edit Post      
It only gets down to the mid 20s here typically on the coldest days so I'm not sure how it would work in consistently colder climates. The car never has a super high idle with the FIAV deleted. It settles down to where it's set within a minute or so. My stock VR4 takes longer for the idle to settle down on cold start.



Ryan C.
1908- sold and missed.
1280- 2.3, FP 35R, E85, etc.
1135- 100% stock - 88k miles
'93 Mirage hatch- 4g63, AWD, etc (hoarding for build)

Posts: 2703 | From: Savannah, GA | Member Since: 08/30/05 | IP: (69.245.80.109) | Report this post to a Moderator

89Mirageman
Senior Member


Galant VR-4 org Post #: 1238648 posted 07/20/17 04:03 PM     Remind Me!  Send Private Message   Edit Post      
Can you give more detail on what you do to delete it? Blockoff plate or what? Or do you just machine it off and tap in a freeze plug? I agree, looks way cleaner. Weather is about the same here in NC so I wouldn't have any issues.



94 Eagle Summit DL coupe
98 Mitsubishi Mirage DE sedan
15 Mitsubishi Mirage ES hatch

Posts: 2485 | From: Stantonsburg, NC | Member Since: 07/05/06 | IP: (65.41.185.13) | Report this post to a Moderator

strokin4dr
fighting them with a large needle
1280/2000
1135/2000


Galant VR-4 org Post #: 1238658 posted 07/21/17 05:45 AM     Remind Me!  Send Private Message   Edit Post      
It is internally blocked off. My other TB's were blocked off inside with JB Weld long before I started machining the lines off for simplicity and esthetics. Same thing as using one of the block off plates that allows you to retain the ISC.



Ryan C.
1908- sold and missed.
1280- 2.3, FP 35R, E85, etc.
1135- 100% stock - 88k miles
'93 Mirage hatch- 4g63, AWD, etc (hoarding for build)

Posts: 2703 | From: Savannah, GA | Member Since: 08/30/05 | IP: (69.245.80.109) | Report this post to a Moderator

4Grim
I deliver.
1948/2000


Galant VR-4 org Post #: 1238661 posted 07/21/17 08:55 AM     Remind Me!  Send Private Message   Edit Post      
Oh wow...this is nice. I would like to do this to my Tbody. Is there a tutorial on doing this?



91 GVR4 1948/2000
96 Galant 5sp DOHC 4G64T
2002 Montero Limited
1998 Montero SR (Winter package w/ adjustable suspension)



Posts: 2451 | From: Orlando FL | Member Since: 09/30/04 | IP: (192.234.90.30) | Report this post to a Moderator

FlyingEagle
Doesn't Match Anything


Galant VR-4 org Post #: 1238665 posted 07/21/17 11:53 AM     Remind Me!  Send Private Message   Edit Post      
On another note for people looking to keep functionality with respect to the use of the nipples (that wouldn't or don't want to use silicone caps on the nipples), one could solder the nipples shut and keep spares in case they wish to sell the throttle body as fully stock functional and not being reversible where the plugs get tapped into the base material. You can twist in new nipples or drill out the solder!

It looks really good and professional when it's done like Chris has shown us. Takes a steady hand a bit of nerve to want to do this mod, and not just once for his own stuff, but for others too.



C53A 1 of the ~1500

Posts: 1515 | From: THE Ottawa | Member Since: 03/05/05 | IP: (108.63.97.28) | Report this post to a Moderator

89Mirageman
Senior Member


Galant VR-4 org Post #: 1238681 posted 07/22/17 04:48 PM     Remind Me!  Send Private Message   Edit Post      
Quoting strokin4dr:

It is internally blocked off. My other TB's were blocked off inside with JB Weld long before I started machining the lines off for simplicity and esthetics. Same thing as using one of the block off plates that allows you to retain the ISC.




So I would still need to use the JB Weld or a block-off plate even if I remove the water line housing and tap in a freeze plug? The smaller holes that are still left open right beside the plug, do they actually go to anything or do they need to be blocked too? How did you go about removing that? Just cut it off and sanded it smooth?



94 Eagle Summit DL coupe
98 Mitsubishi Mirage DE sedan
15 Mitsubishi Mirage ES hatch

Posts: 2485 | From: Stantonsburg, NC | Member Since: 07/05/06 | IP: (65.41.185.13) | Report this post to a Moderator

strokin4dr
fighting them with a large needle
1280/2000
1135/2000


Galant VR-4 org Post #: 1238792 posted 07/30/17 09:06 AM     Remind Me!  Send Private Message   Edit Post      
Yes, the passages still need to be internally blocked off or use a plate just like you would normally do to delete the FIAV. The machining of the lines is just cosmetic. No need to plug the holes where the water lines were, but you could thread them and add a couple set screws if you like. I may try that with my next one. We used a band saw to remove the main bulk and then used a mill to machine the rest flat. Freeze plug from the parts store to seal it up.



Ryan C.
1908- sold and missed.
1280- 2.3, FP 35R, E85, etc.
1135- 100% stock - 88k miles
'93 Mirage hatch- 4g63, AWD, etc (hoarding for build)

Posts: 2703 | From: Savannah, GA | Member Since: 08/30/05 | IP: (69.245.80.109) | Report this post to a Moderator

Leon_R
Member


Galant VR-4 org Post #: 1239448 posted 09/08/17 11:38 AM     Remind Me!  Send Private Message   Edit Post      
Can you just use a soda can to make a gasket that has opening for ISC, but blocks off the FIAV?



Leon
01 VehiCROSS
93 Eagle Summit TSI AWD [email protected] (4G63 transplant)
96 Mitsu Eclipse Spyder GSX
80 Triumph TR7 GST (4G63 transplant)

Posts: 208 | From: Chelmsford, MA | Member Since: 08/30/11 | IP: (199.46.250.151) | Report this post to a Moderator

89Mirageman
Senior Member


Galant VR-4 org Post #: 1239452 posted 09/08/17 03:15 PM     Remind Me!  Send Private Message   Edit Post   
I don't see why that wouldn't work. I've read where people blocked the extra holes when going DOHC on a 7 bolt the same way with no issues. Not sure I'd trust it for something like that but for the throttle body maybe.



94 Eagle Summit DL coupe
98 Mitsubishi Mirage DE sedan
15 Mitsubishi Mirage ES hatch

Posts: 2485 | From: Stantonsburg, NC | Member Since: 07/05/06 | IP: (65.41.185.13) | Report this post to a Moderator


Pages: 1
Previous thread Next thread

Extra information
0 registered and 29 anonymous users are browsing this forum.

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

Print Thread

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

Rating:
Thread views: 922

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 0.105 seconds in which 0.073 seconds were spent on a total of 14 queries. Turbo powered.



Hertz's Galant VR-4 Page