Father of the Miata... 323GTX LOVE. - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 07-28-2010, 03:43 PM   #41
Junior Member
iTrader: (6)
 
Join Date: Jan 2006
Location: St Johns, Fl
Posts: 378
Total Cats: 0
Default

I love the old GTX's. I had one in college and learned a ton about working on cars the 5 years I drove it. It was so much fun on old dirt roads hanging the backend out. Parts availability was a bit of pain, but not too bad. Being my only car, I drove it for 2 weeks with the diff locked and no driveshaft (FWD) while I waited for a new driveshaft to be shipped across country (center bearing failed). Ahh the memories...

clay is offline   Reply With Quote
Old 07-28-2010, 03:43 PM   #42
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

Quote:
Originally Posted by johnmatt View Post
Do these cars hold up to power better than ours as far as trannys and drivetrain go?
The tranny's will definitely blow if you abuse them enough then you will spend the rest of your life trying to find a good one.
wayne_curr is offline   Reply With Quote
Old 07-28-2010, 08:06 PM   #43
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,479
Total Cats: 116
Default

Quote:
Originally Posted by johnmatt View Post
Do these cars hold up to power better than ours as far as trannys and drivetrain go?
I would say no and you arenít going to go to the local salvage yard to find replacement parts if they do brake. Some rare parts on these beasts.

There is quite a number of BP swaps showing up available imported from 90-93models which were never sold in north america but the 1.8 swap is much more involved than a 1.8 swap in a miata. Transmission motor mounts and engine placement are all different 1.6 to 1.8.

Bob
bbundy is offline   Reply With Quote
Old 08-23-2010, 04:01 PM   #44
Miotta FTW!
Thread Starter
iTrader: (24)
 
Splitime's Avatar
 
Join Date: Jun 2006
Location: Chicagoland, IL
Posts: 4,295
Total Cats: 26
Default

Survived its first Autox. The all seasons took a massive beating... but who cares

Splitime is offline   Reply With Quote
Old 08-23-2010, 04:06 PM   #45
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

how did it do?
Braineack is offline   Reply With Quote
Old 08-23-2010, 04:08 PM   #46
Miotta FTW!
Thread Starter
iTrader: (24)
 
Splitime's Avatar
 
Join Date: Jun 2006
Location: Chicagoland, IL
Posts: 4,295
Total Cats: 26
Default

Quote:
Originally Posted by Braineack View Post
how did it do?
I think middle of the pack against STIs and such? Had some weird bucking under boost to fix, not sure if it was rhytmic suspension issue or boost/fuel cut/ignition something. The all seasons were painful to drive on, no steering response and just made the stiff suspension borderline useless.

Still fun though
Splitime is offline   Reply With Quote
Old 08-23-2010, 04:29 PM   #47
Junior Member
iTrader: (6)
 
Join Date: Jan 2006
Location: St Johns, Fl
Posts: 378
Total Cats: 0
Default

The stock fuel cut kicks in at 11psi or so. It's simply a matter of disconnecting the sensor on the firewall to disconnect it. IIRC, it's cylidrical and will have a vacuum hose coming in one end and a plug in the other end. You will want to make sure you have some sort of method of adding extra fuel though.
clay is offline   Reply With Quote
Old 08-23-2010, 04:32 PM   #48
Miotta FTW!
Thread Starter
iTrader: (24)
 
Splitime's Avatar
 
Join Date: Jun 2006
Location: Chicagoland, IL
Posts: 4,295
Total Cats: 26
Default

Quote:
Originally Posted by clay View Post
The stock fuel cut kicks in at 11psi or so. It's simply a matter of disconnecting the sensor on the firewall to disconnect it. IIRC, it's cylidrical and will have a vacuum hose coming in one end and a plug in the other end. You will want to make sure you have some sort of method of adding extra fuel though.
Car has Reich ecu. 16psi capable.
I'm just not turning the boost all the way up until a few little things are addressed. Along with porting turbine housing to lower boost creep with the upgraded downpipe.
Splitime is offline   Reply With Quote
Old 08-23-2010, 04:32 PM   #49
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

Megasquirt it.
Braineack is offline   Reply With Quote
Old 08-23-2010, 04:33 PM   #50
Miotta FTW!
Thread Starter
iTrader: (24)
 
Splitime's Avatar
 
Join Date: Jun 2006
Location: Chicagoland, IL
Posts: 4,295
Total Cats: 26
Default

Quote:
Originally Posted by Braineack View Post
Megasquirt it.
F that. Factory boosted car is a waste of a MS and a MAJOR waste of my time. It is happy doing everything with 0 hiccups and 0 work.
Splitime is offline   Reply With Quote
Old 08-23-2010, 04:34 PM   #51
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,479
Total Cats: 116
Default

Quote:
Originally Posted by Splitime View Post
I think middle of the pack against STIs and such? Had some weird bucking under boost to fix, not sure if it was rhytmic suspension issue or boost/fuel cut/ignition something. The all seasons were painful to drive on, no steering response and just made the stiff suspension borderline useless.

Still fun though
The GTX in somewhat stock internal power form with suspension mods fits nicely in the ST class running on street tires. It will be tough to beat the kryptonite powered super light civics but along with a Subaru 2.5 RS it could be competitive in that class however. I know I beat some top level ST guys times with my stockish chipped powered one running on old RA-1's which are probably equivalent to some of the street tires that are now available.

Since my Miata isn’t quite setup for SSM but is more of a track day car I have considered running ST with the GTX. The other option is SM but I think it would take quite a bit a tweaks and a lot more money to fit 275/35/15 Hoosiers on it and make sure it had enough power to be competitive in SM.

Bob

Last edited by bbundy; 08-23-2010 at 05:12 PM.
bbundy is offline   Reply With Quote
Old 09-28-2010, 02:59 PM   #52
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

Figured I would just post my pics in this thread rather than make a new one. This came home last night. Thanks again for doing most of the work getting it here Bob.

Name:  DSC02660.jpg
Views: 2
Size:  153.1 KB
Name:  DSC02661.jpg
Views: 2
Size:  134.0 KB
Name:  DSC02663.jpg
Views: 2
Size:  148.7 KB
Name:  DSC02664.jpg
Views: 2
Size:  98.8 KB
Name:  DSC02665.jpg
Views: 2
Size:  159.1 KB

Only serious spot of rust I can find so far.
Name:  DSC02662.jpg
Views: 2
Size:  51.9 KB

Going to wash it thursday and push it into the garage for a couple weeks to swap the tranny. Needs a couple of other things before its drivable like a new master cylinder and brake lines. I also plan on getting a stock hood to replace the one with the silly vents.
wayne_curr is offline   Reply With Quote
Old 09-28-2010, 04:00 PM   #53
Supporting Vendor
 
Good-Win Racing LLC's Avatar
 
Join Date: Feb 2008
Posts: 634
Total Cats: 18
Default

Complete with the HKS mushroom filter...love it! Brings back old memories. The rocket powered phone booth that got me a fist full of tickets. Had one, loaded with all the HKS stuff available. I went through transmissions like corn chips....eventually used a 626 Trans.
Good-Win Racing LLC is offline   Reply With Quote
Old 09-28-2010, 04:03 PM   #54
Miotta FTW!
Thread Starter
iTrader: (24)
 
Splitime's Avatar
 
Join Date: Jun 2006
Location: Chicagoland, IL
Posts: 4,295
Total Cats: 26
Default

Quote:
Originally Posted by Good-Win Racing LLC View Post
I went through transmissions like corn chips....eventually used a 626 Trans.
Details on this just to document for future reference?
Splitime is offline   Reply With Quote
Old 09-28-2010, 04:58 PM   #55
Senior Member
 
Join Date: Aug 2010
Location: San Luis Obispo, CA
Posts: 505
Total Cats: 0
Default

Quote:
Originally Posted by wayne_curr View Post
Figured I would just post my pics in this thread rather than make a new one. This came home last night. Thanks again for doing most of the work getting it here Bob.







Only serious spot of rust I can find so far.


Going to wash it thursday and push it into the garage for a couple weeks to swap the tranny. Needs a couple of other things before its drivable like a new master cylinder and brake lines. I also plan on getting a stock hood to replace the one with the silly vents.
That thing is awesome. Now what's going on with the 245 in the background...?
scottyd is offline   Reply With Quote
Old 09-28-2010, 05:17 PM   #56
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

Quote:
Originally Posted by scottyd View Post
That thing is awesome. Now what's going on with the 245 in the background...?
I think my neighbor just bought that for his daughter's first car. Not sure what the deal is with it. Just a beater I presume.

I am indeed affraid of going through transmissions since i'd be lucky just to find another one. I'm pretty excited about this car overall though. For now i'm just going to get the new transmission in and get some hoses and seals replaced and get it back on the road. Next summer I plan on replacing the engine and cleaning/repainting the engine bay. Eventually i'd like to do a near full restore on it to make it a nice daily driver.
wayne_curr is offline   Reply With Quote
Old 09-28-2010, 05:18 PM   #57
Supporting Vendor
 
Good-Win Racing LLC's Avatar
 
Join Date: Feb 2008
Posts: 634
Total Cats: 18
Default

Quote:
Originally Posted by Splitime View Post
Details on this just to document for future reference?

Sorry, hardly recall what I ate for lunch today....let alone a trans swap I did over 20 years ago! I vaguely recall that it was the only beefed up trans that Mazda had at the time and we got it from a wrecked Mazda 626. But I don't recall what mods, if any, it took to install it. I do remember that it was a popular swap for the GTX guys back in the day. Therefore, I imagine some Google searches might get you some documentation on that swap from somebody.
Good-Win Racing LLC is offline   Reply With Quote
Old 09-28-2010, 05:35 PM   #58
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

Quote:
Originally Posted by Good-Win Racing LLC View Post
Sorry, hardly recall what I ate for lunch today....let alone a trans swap I did over 20 years ago! I vaguely recall that it was the only beefed up trans that Mazda had at the time and we got it from a wrecked Mazda 626. But I don't recall what mods, if any, it took to install it. I do remember that it was a popular swap for the GTX guys back in the day. Therefore, I imagine some Google searches might get you some documentation on that swap from somebody.
I wasn't aware that there were AWD 626s!
wayne_curr is offline   Reply With Quote
Old 09-28-2010, 06:37 PM   #59
Junior Member
 
Join Date: Apr 2009
Location: Tampa, FL
Posts: 56
Total Cats: 0
Default

I know the front member needs to be modified but I see a lot of guys doing 4wd celica tranny swaps in these. Supposedly the celica tranny is much beefier thus the need to modify the cross member.
el maestro is offline   Reply With Quote
Old 09-28-2010, 08:49 PM   #60
Senior Member
iTrader: (1)
 
Join Date: Oct 2008
Location: Trailer County
Posts: 530
Total Cats: -9
Default

Its crazy to know there is a place in Puerto Rico called JR Connection and for the price of a boosted gtx engine here in the states, they will include the awd train. At least back in the island nobody wants them, only way to get parts besides that place would be overseas.
mazpr is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
LucaCarMods's Boosted Dutch Miata Build! LucaCarMods Build Threads 11 02-14-2016 07:13 AM
Koni 1150 Coilover Kit drumman83 Suspension, Brakes, Drivetrain 2 09-25-2015 08:03 PM
Wilwood Corrado bracket measurements Neilv Suspension, Brakes, Drivetrain 3 09-12-2015 10:46 AM
Our father son miata project gc8pat Media 54 05-14-2012 02:19 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:47 PM.