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

Infini IV ?

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Old 02-08-04 | 10:02 PM
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Infini IV ?

What is the Infinity IV model? Is it just a japanese spec rx-7, or is it some kind of performance model? Also, if it is a better performer than a Turbo ll would it be feasable to buy one? Thanks
Old 02-08-04 | 10:15 PM
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Search for "Infini" in the 2nd Gen section and you'll get all the info you want. Much of the stuff posted so far isn't correct...
Old 02-08-04 | 10:16 PM
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sorry for the mis-info then
Old 02-08-04 | 10:31 PM
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Please don't post unless you know for sure!

Thread edited for bogus info
Old 02-08-04 | 10:36 PM
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From my website:
Also in 1991 Mazda created the Japanese market only Infini IV (pronounced on'-fin-ee) .

Stripped of all Savanna or RX-7 identification, this was the last limited edition ultra high performance version of the 2nd-generation RX-7. A factory hot rod, the Infini IV was lightened (to 2770 lb.), by stripping out the extras, reducing the noise dampening material and using lighter parts including lightweight, perforated suede like material racing style seats. With a revised suspension (shocks 25% stiffer, springs 10% stiffer and lowered 1") Special Pirelli designed P-Zero tires, ultra lightweight 16 inch BBS wheels and a bright red front strut brace, the handling improved to a skidpad of .91 Gs. The Infini IV (as with most 91 models) also came with the tighter steering rack from the 89-90 North American GTUs model. Molded knee Pads at the driver's door side and center console were added to help brace the driver's legs while cornering, while a "dead pedal" bar ran the length of the passengers floor. An emergency flare and holder were also mounted just under the glove box.

Similar again to the US spec 1989 and 1990 GTUs; the Infini IV came with the 4.3 rear end final gear (but also used a new Torsen Limited Slip Differential), minimal extras, but no air conditioning, or even a CD/Cassette (however it did come with power windows and used the light weight power window motors from the convertibles). Power was bumped to 215 HP (JIS), largely by changing the exhaust to a free flowing design and revised ECU. 0-60 performance was 6.5 and the quarter mile time dropped to 14.9, with Infini specific brake pads helping make an impressively matching braking force of 60-0 in 141 ft (8 feet less than the standard RX-7 Turbo). The Infini IV was only available in a custom black/green metallic paint (Nobel Green Pearl Clearcoat, Mazda paint code VQ). Unfortunately, the Infini IV was not imported to North America other than a single press version that was returned back to Japan after the press tour.

Last edited by Icemark; 02-12-04 at 02:59 PM.
Old 02-08-04 | 10:39 PM
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icemark do you happen to know the number produced?
Old 02-08-04 | 10:59 PM
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let me see if I can find it... my Japanese is not what it used to be
Old 02-08-04 | 11:04 PM
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WTF why did my post get deleted... it was all correct info!! 300lbs less than the S5 T2 and more HP

Additionally, total # of Infinis made:
Infini1: 600, Aug,86 to Jan,87
Infini2: 600, Jan,88 to Aug,88
Infini3: 1150, Aug,89 to Feb,90
Infini4: 900, June,90 to Feb,91
Grand total: 3250
Old 02-08-04 | 11:08 PM
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Originally posted by 86GXL
WTF why did my post get deleted... it was all correct info!! 300lbs less than the S5 T2 and more HP
well to start with only the IV was only 200 lbs lighter than a S5 Turbo (not 300 as you stated)

And none of the other FC Infini's were any lighter or more powerful than the standard Turbo of that year.
Old 02-08-04 | 11:10 PM
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Originally posted by Icemark
well to start with only the IV was only 200 lbs lighter than a S5 Turbo (not 300 as you stated)

And none of the other Infini's were any lighter than the standard Turbo of that year.
Well to start i was specificly talking about the IV (because thats what he's asking about) and i read ALL the old posts about this topic as somone else suggested early and in EVERY one it was said 300lbs lighter... better edit all those posts to then huh
Old 02-08-04 | 11:30 PM
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show me one...

Its been long published (in multiple locations and print)that the Infini IV was 2770 lbs.

Since the S5 Turbo was 2980... well you do the math.

So again, don't post information that you don't know for sure
Old 02-08-04 | 11:34 PM
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so a 90 T2 isn't a Infini IV im about to put in my "Infini Sticker!!!
Old 02-08-04 | 11:37 PM
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Originally posted by theone81
so a 90 T2 isn't a Infini IV im about to put in my "Infini Sticker!!!
There were no US spec Infini models. there was not even any left hand drive FC Infini models.

And the Infini IV was a 91 model.
Old 02-08-04 | 11:42 PM
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so a 90 would be a Infini III
Old 02-08-04 | 11:43 PM
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Originally posted by theone81
so a 90 would be a Infini III
yes, a 90 model year Infini was available in Japan.
Old 02-08-04 | 11:44 PM
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what about the side fenders does the Infini come with the GT-X stickers on them
Old 02-08-04 | 11:45 PM
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no
Old 02-09-04 | 12:10 AM
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does any one know where to get a pair of those seats or how much they cost

mike
Old 02-09-04 | 12:18 AM
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Originally posted by gray 87 fc
does any one know where to get a pair of those seats or how much they cost

mike
I'd check the Japanese Boards...your luckier there than anywhere else.
Old 02-09-04 | 12:47 AM
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My friend has some of those seats> they are the most comfortable fixed buckets my *** has ever felt> we might be able to get some more>damn keyboard is going crazy!
Old 02-09-04 | 12:48 AM
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Why would you want a pair of 13-14yo seats?
Old 02-09-04 | 11:07 PM
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hell yea, i got one of the 900 infini IV motors. even though i got a sweet port and total rebuild on it, so its much faster
Old 02-09-04 | 11:18 PM
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Originally posted by mightymouse0x
hell yea, i got one of the 900 infini IV motors. even though i got a sweet port and total rebuild on it, so its much faster
There was no difference between an Infini motor and any other Jspec, other than exhaust manifold differences.
Old 02-10-04 | 05:00 AM
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I don't think it was even the manifold, just the post-turbo pipework.

mightymouse, I hope you didn't pay more than you should've...
Old 02-10-04 | 08:32 AM
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no i didnt, he just had one in stock and told me he had one, no extra charge, and i know it wouldnt matter anyways, because i got a much better port and rebuild and a couple of other little things. all the manifolds flow better, and the turbo ive heard from many ppl is a little bit better too, not really enough to make a huge difference



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