2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

calling all 1990 GTUs owners.

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Old Apr 6, 2006 | 12:23 PM
  #26  
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I've got a black '90 GTUs, but its somewhat bastardized now.
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Old Apr 6, 2006 | 12:29 PM
  #27  
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pffft, since when have americans been concerned with gas mileage? how many SUVs do you see on the road to work every day?

i think Mazda made the wrong decision scrapping that idea.
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Old Apr 6, 2006 | 12:33 PM
  #28  
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Originally Posted by Karack
pffft, since when have americans been concerned with gas mileage? how many SUVs do you see on the road to work every day?

i think Mazda made the wrong decision scrapping that idea.
Remember this was the late eighties, early nineties... The car would have had gas Guzzler tax on it.

Mazda was nearly killed in the mid 70's when the rotary motor was considered as gas guzzler, and corporate philosophy said no Mazda product sold in the USA would ever be labeled a gas guzzler again.
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Old Apr 6, 2006 | 12:39 PM
  #29  
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Blaze Red '90 GTUs here... Completely stock... Salvage title though, because some jackass thought it would be cool to steal the car... Reason? To rip it's "bandaid" off...
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Old Apr 6, 2006 | 12:54 PM
  #30  
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Owner of a S5-GTU 90

WOW WOW guys.. what's with all the down side of a GTU.. yes there was only 100 units.. but the value of the car is great. I own a 1990 GTU in almost mint* .. and what is this about gtu not having a sunR?!? mine has no Auto windows but there is a sunR. ....
But i need you guys to help me out.. I've been Rev happy and my motor is starting to shake on me.. i mean my rims are a little bent from hitting the curb.. but I don't think it could cuz my car to shake this much... Please HELP...

Here are pic some pics of my S5 90' GTU.... enjoy

http://www.cardomain.com/ride/2113168
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Old Apr 6, 2006 | 12:56 PM
  #31  
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Originally Posted by GSfc3s
WOW WOW guys.. what's with all the down side of a GTU.. yes there was only 100 units.. but the value of the car is great. I own a 1990 GTU in almost mint* .. and what is this about gtu not having a sunR?!? mine has no Auto windows but there is a sunR. ....
But i need you guys to help me out.. I've been Rev happy and my motor is starting to shake on me.. i mean my rims are a little bent from hitting the curb.. but I don't think it could cuz my car to shake this much... Please HELP...

Here are pic some pics of my S5 90' GTU.... enjoy

http://www.cardomain.com/ride/2113168
GTU and GTUs are two different models
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Old Apr 6, 2006 | 12:57 PM
  #32  
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We're talking about the GTUS

COMPLETELY different car!
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Old Apr 6, 2006 | 01:00 PM
  #33  
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Originally Posted by DelSlow
I've got a black '90 GTUs, but its somewhat bastardized now.
That cars badass...I have a bunch of the pics of your engine bay saved on my computer. Hats of on that GTUs.
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Old Apr 6, 2006 | 01:16 PM
  #34  
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ditched the 2nd gens.
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yeah. props for delslow.
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Old Apr 6, 2006 | 01:32 PM
  #35  
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what is the diff. from a GXL and a GTU? o .O
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Old Apr 6, 2006 | 01:33 PM
  #36  
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Oh my bad.. i misread"GTUs" wish i had one lol... can someone tell me what is the diff. from a GXL and a GTU? o .O
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Old Apr 6, 2006 | 01:36 PM
  #37  
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^^^this is COMPLETELY covered IN THIS THREAD! read man, cmon, i know we arent supposed to talk to other forum members like this but damn it, hes posting a question in the thread he can get his answer
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Old Apr 6, 2006 | 01:37 PM
  #38  
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Originally Posted by GSfc3s
Oh my bad.. i misread"GTUs" wish i had one lol... can someone tell me what is the diff. from a GXL and a GTU? o .O
If you look at the top of this section, you will see a sticky thread marked Standard features and options. It contains all the US models and what they came with based on year.

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/specifications-what-did-2nd-generation-rx-7-come-w-options-standard-features-249616/
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Old Apr 6, 2006 | 05:14 PM
  #39  
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that is the coolest sticky ever. i could read it for hours.
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Old Apr 6, 2006 | 06:07 PM
  #40  
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Originally Posted by Icemark
There are a couple... They built two LHD10thAE (in silver) and a couple LHD GTUs mules with the normally aspirated 20Bs in them. I have a picture from back in '88 of one of the 10th AEs sitting in front of what is now the Irvine R&D building.

They ran into issues with cooling (the stock FC rad was too small for hot weather testing in AZ) and the gas consumption was horrible (around 11-12 MPG I was told).

Car and Driver, caught wind of it and printed this in mid 88


If you read the fine print, you'll notice how it says they will be powered by a 3 rotor.

the project engineer for the GTUs (his first full project for Mazda- and a major player on the RX-8) was embarrassed to be associated with the GTUs when Corporate decided to emasculate the GTUs with removing the motor of choice, and putting in the band aid of the 4.3 rear end instead.


.

if they replaced the 20B with a 4.3 rear end, why not replace it with the turbo engine then you could call it a infiny or something..



Gil
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Old Apr 6, 2006 | 06:10 PM
  #41  
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Originally Posted by Icemark
They are only rare, because for the most part they are 89 models restamped to be 90 models, because the model tanked when it first went on sale.

If they were popular, Mazda would have built 10000.

But dealers couldn't sell them, and didn't understand how to market them.
SHHHHHHHHHH everyone!
The Icemark speaketh!
Seriously though, damn he knows everything!
I got to drive a GTUs last year and loved it. The owner had a full RB exhaust and it was bone stock from the factory with no options. It's become an inspiration for me in moding my 7... Even though I have an 87 GXL with every power option known to man.
I think some GTUs' out there with power options (especially those with sunroofs) might be hacks. You can buy the decals off Victoria British for $30 each. I personally would love to take an 89 or 90 GTU, beef up the suspension and slap a GTUs sticker on it.
Here's my Question: How hard would it be? Other than that special differential and everything else on the sticky thread, is there any other GTUs specific parts? I think I wouldn't even have to worry about getting specifics right because we have alot of people who claim to have a GTUs w/ power options. I've also noticed all the one's I've seen have a black interior, is this standard on the GTUs?
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Old Apr 6, 2006 | 06:28 PM
  #42  
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don't bother.........just lighten your FC and do all the bolt ons....as I saaid the diff and tranny are overrated.
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Old Apr 6, 2006 | 06:40 PM
  #43  
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Originally Posted by nickn505
I've seen have a black interior, is this standard on the GTUs?
actually there is the rare GTUs dealer sheet in the what did my FC come with/ Standard Features and options thread that says what the colors are too
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Old Apr 6, 2006 | 08:19 PM
  #44  
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Originally Posted by Icemark
actually there is the rare GTUs dealer sheet in the what did my FC come with/ Standard Features and options thread that says what the colors are too
I checked that out and all it had were the exterior colors. That was still surprising though, there were only three offered.
Also, there's something I don't get. You said in one of the first threads that the GTUs' were just a way to rebadge a few 89 RX7s. But in the later post you said that the GTUs was its own project of a 20B RX7 which later dropped the motor but still made production.
If the GTUs' were just rebadged 89 RX7's, were they cars that were waiting at the factory for orders to go to delerships in the states but then got too old and were rebadged (and had a new diff installed). Or were they unsold 89 cars at dealerships that were then given back to the factory (or Mazda's California HQ ) for refitting and rebadging?
If it is just the remains of a dropped 20B project, why doesn't it have any resemblence to the concept? It doesn't have wide fenders, non retracting headlamps and it has a different diff that (if it was in fact intended as a "band-aid" to make up for the lack of a 20B) wasn't on the original concept?
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Old Apr 6, 2006 | 08:41 PM
  #45  
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why did the 20B concept GTUs have a TII hood? RamAir?
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Old Apr 6, 2006 | 10:35 PM
  #46  
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You own a GTU man, nothing special there.
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Old Apr 7, 2006 | 01:16 AM
  #47  
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Originally Posted by nickn505
I checked that out and all it had were the exterior colors. That was still surprising though, there were only three offered.
Hmm, could have swore the interior colors were there too... my bad
Also, there's something I don't get. You said in one of the first threads that the GTUs' were just a way to rebadge a few 89 RX7s. But in the later post you said that the GTUs was its own project of a 20B RX7 which later dropped the motor but still made production.
If the GTUs' were just rebadged 89 RX7's, were they cars that were waiting at the factory for orders to go to delerships in the states but then got too old and were rebadged (and had a new diff installed). Or were they unsold 89 cars at dealerships that were then given back to the factory (or Mazda's California HQ ) for refitting and rebadging?
No, I said the 90 GTUs (which there were a couple hundred) were re-numbered 89 models. Not enough dealer orders, but Mazda had already overbuilt the capacity in 89. Because there were not enough orders before the 89 production year expired, they just re-stamped the remaining 89 GTUs models as 90 model year. There is a strike out on the firewall VIN of every 90 model year GTUs that I have seen that changes the model year only.

If it is just the remains of a dropped 20B project, why doesn't it have any resemblence to the concept? It doesn't have wide fenders, non retracting headlamps and it has a different diff that (if it was in fact intended as a "band-aid" to make up for the lack of a 20B) wasn't on the original concept?
The picture is not from Mazda, but rather an artists mock up, based on what people were suggesting the car would have. I suspect that it was also cobbled together from pictures of the car being tested in the american southwest since the wheels were dead on. Of course since Day one people have been claiming the S5 models have wider fenders both front and rear... of course real enthusists know that wider fenders never came on the S5 models... yet people still claim they have them.

According to both Jack Yamaguchi and Isao Tohada (the later, I met last year at 7 stock) The 20B project started back in 87. The silver 10thAE versions being the first one to get it (as a side note, the silver 10thAE models with the 20B did not have the Turbo hood, but rather the scoopless non turbo hood and polished chrome wheels). Isao Tohda (Planning/Layout engineer when he first joined Mazda) led the project. His next project was the GTUs model. With the Normally aspirated 20B making simular power to the Turbo (but better torque). Again because of cooling issues and poor mileage (and according to Jack, a questionable gear box) Mazda management decided not to spend the money required to make the 20B work in the GTUs. In Isao Sans words," the GTUs, my first production car, fizzled in the market - not enough power and the low gearing we used to disguise the problem resulted in poor fuel economy".

His next project was the front packaging for the 3rd gen RX-7, including the cooling, aerodynamics, and performance evaluation. Intresting he told me that the only reason the FD was pulled from overseas markets was because of poor sales related to price, not emissions or safety or insurance rates as is often suggested. He blamed the overly expensive twin turbo engine for the blunt of the cost (of course that follows my opinion that the FD would have never disappeared from the US market if they had built a cheaper non turbo version of the FD- something that most FD owners consider blasphmeny)

After that he worked on the Amati flagship sedan that was to be powered by a new Mazda built quad cam V12. Of course that project burst and was cancelled in the Depression of the 90's.

Isao San, was also one of the project managers for the FE (RX-8).

I guess you could say Isao san was the father of the now famed GTUs.

In all honesty, if I found a GTUs, I would build a NA 20B for it, and shoehorn it in, just to build what Mazda should have. There is nothing special about the car other than that history, and nothing that will command a limited production status today. maybe in another 20 years, but otherwise its is just a intresting footnote and look at what manufactures and engineers are forced to deal with when marketing and sales commands the production.

Last edited by Icemark; Apr 7, 2006 at 10:15 AM.
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Old Apr 16, 2006 | 04:51 AM
  #48  
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Originally Posted by Icemark

His next project was the front packaging for the 3rd gen RX-7, including the cooling, aerodynamics, and performance evaluation. Intresting he told me that the only reason the FD was pulled from overseas markets was because of poor sales related to price, not emissions or safety or insurance rates as is often suggested. He blamed the overly expensive twin turbo engine for the blunt of the cost (of course that follows my opinion that the FD would have never disappeared from the US market if they had built a cheaper non turbo version of the FD- something that most FD owners consider blasphmeny)

yhea I totally agree with u.. their should of been a NA FD... just like the toyota supra.



Gil
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Old Apr 16, 2006 | 10:47 AM
  #49  
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Japan's currency peaked in strength around 95-96, the same years when sales of expensive Japanese sports cars really tanked, when Nissan almost went under, etc. With such a strong currency it makes imports expensive in the US market. I'm not sure an N/A FD would have been cheap enough.
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Old Apr 16, 2006 | 11:07 PM
  #50  
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Originally Posted by arghx
Japan's currency peaked in strength around 95-96, the same years when sales of expensive Japanese sports cars really tanked, when Nissan almost went under, etc. With such a strong currency it makes imports expensive in the US market. I'm not sure an N/A FD would have been cheap enough.

Makes sence, it would explain why the supra was droped from production, and why many japanese companies have assembli plants in the USA..


Gil
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