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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.


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Old 07-26-2009, 09:54 PM   #16
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I don't have any direct experience with the PS-series that just came out.
I've done older E6K and the previous E8 / E11 stuff.
If the PS-series is anything like the previous mentioned ECU's, it'll have no problem running those 1600's.

BTW, the "1600" fuel injectors are Bosch / Ford 160 lbs./min "LPG" fuel injectors that are easily adapted for our engines.

I prefer the "Supra TT" NipponDenso fuel pump for 400hp levels.
These are drop-in replacements for stock.

The Bosch -044 is another good fuel pump, but the (inlet) fitting makes it difficult for an easy install.
You need a prefilter for the fuel pump inlet, and Bosch does not furnish them.
I've seen a website that offers a dinky prefilter for use on the -044, but this is the main reason why I prefer the SupraTT fuel pump over this -044 unit.

Walbro 255lph is last recommended.
It does the job, but reliability is spotty.
On top of everything else, there are conterfeits out there.
The ND and Bosch units above are a lot more reliable than the Walbro.
The Walbro is cheap though - usually right around $100.


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because you're only as good as your backup

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Old 07-26-2009, 10:06 PM   #17
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Ok ill start hunting a Supra TT and what do i half to modify to make the ford 1600's fit or will they go in without having to be tampered with? Also the haltech offers it own wideband afr stuff would recomend using the haltech instead of the innovative? Thanks for all the info also Ted its covering some things i hadnt thought of yet. Ted do you know of a website that sells them or one of our own vendors that may have the injectors?
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Old 07-26-2009, 10:09 PM   #18
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Also should all four injectors be Low Imp.? if im not mistaken the late 88's (not sure if this includes the 10th AE) had High Imp. 550's or will them being different make any difference?
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Old 07-27-2009, 12:49 AM   #19
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Quote:
Originally Posted by rx7mechusa View Post
Ok ill start hunting a Supra TT and what do i half to modify to make the ford 1600's fit or will they go in without having to be tampered with? Also the haltech offers it own wideband afr stuff would recomend using the haltech instead of the innovative? Thanks for all the info also Ted its covering some things i hadnt thought of yet. Ted do you know of a website that sells them or one of our own vendors that may have the injectors?
you could maybe check on gettin a cosmo fuel pump too... corksport sells them
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Old 07-27-2009, 04:50 PM   #20
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Looks like eBay has several vendors that do sell the 1600's.
These Ford / Chrysler 1600's need to be modified to fit the FC fuel rails.
The evil forum had instructions to do this.
Do we have one on this forum?

I bought my SupraTT fuel pump from eBay.
It was a little less than $200.
That's cheap for this fuel pump.

HKS used to sell that (inferior) Cosmo fuel pump for over $300!
Last time I checked, most places price the Cosmo fuel pump MORE than the SupraTT fuel pump.

The SupraTT fuel pump flows more.

I don't believe in widebands.
I'm the last person to be asking about widebands.

Fuel injector impedence doesn't matter if you're going Haltech.
The Haltech will control either high or low impedence fuel injectors.
The stock fuel injectors off of a 1988 FC is all high impedence.
Mazda changed from low to high in mid-year 1987.


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Old 07-27-2009, 05:42 PM   #21
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Josh, if you are looking at only hitting 300ish, why not go with a BNR?

I know Ted and alot of people are not fans of hybrids, but I have experienced them in both FC's and FD's and they work great for the power levels you want. Also, no need for a custom downpipe or manifold.

Just a thought, that is where I am headed. And Paul (Fero313) lucked out an got a Knightsports T4 hybrid on his engine for the vert.
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Old 07-27-2009, 06:12 PM   #22
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Ill keep it in mind and look at the BNR's tonight. Ted i found the supra pump for 225 shiped to the house on ebay so probably g2 do that. Still looking around at injectors and am going to start looking for a S5 throttle body with TPS sensor so if you have on DJ or know were ones at let me know g2 swap it out from the S4 one on my car.
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Old 07-27-2009, 09:47 PM   #23
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you are bidding on 1 brand new DENSO fuel pump upgrade for the 1993-98 Toyota Supra Turbo & Mazda RX7 twinturbo.

This is a direct replacement pump for the supra and a great upgrade for many other cars like the Mazda RX-7, SW20 Toyota MR2, Eclipse turbo, etc....

DENSO reliability & quality. Dont go cheap on your fuel system with those noisy intank 'wallybros'. There is a reason why Toyota uses DENSO pumps in the Supra to make sure there will always be enough fuel! Densos are QUIETER & MORE RELIABLE!

flows 280 LPH -
BEST IN TANK FUEL PUMP UPGRADE FOR THE SUPRA AND WORKS GREAT FOR ALL SORTS OF HIGH POWER APPLICATIONS!

Does this sound right before i buy it Ted? its not bad priced and i think would serve fine. also im going to recompile my build up stuff tomorrow and see what you think. Any recomendations on rebuilds? My eng is good but it will need a rebuild or replacement before i start upgrading to much ie the GT35
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Old 07-27-2009, 10:06 PM   #24
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Yep, sounds like the one.
Try and get the part number...
It should be: 195130-1020

As for hybrid turbos...
I actually like them.
I run them on my FC.
They are easy to install.
They can make lots of power.
If you can afford a full turbo upgrade, I will always recommend that route.
The stock turbo turbine section is too small when you compare them with full (T04) turbine sections.
The full turbo upgrade will almost always flow more efficiently.


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Old 07-27-2009, 10:38 PM   #25
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Engine: L6 (3.0L)
ID: 2JZGTE
PN: 950-0155
(Mounting Kit) (2JZGTE Eng.) w/ Turbo; DENSO Manufactured OE / OES Service Part Replacement Fuel Pump & Strainer Kit

That is the part number and description i found on the ebay page and it had a link to Denso's website to verify it if you think is right thing im going to go ahead and buy it Ted.
I have the money for the A-Spec kit the non bb one GT3574 so i want to use that but its more than i think i need for 300-325hp is 350-375hp still an ok set and drive it alot?
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Old 07-27-2009, 11:27 PM   #26
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http://forums.celicasupra.com/archiv...p/t-41814.html
Looks like it's the right part...

I always recommend to go bigger, especially if you're not shooting for 400.
(You're going to want to!)
With a bigger turbo (than what you need), you can always run lower boost.
Running lower boost puts less stress on the engine.


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Old 07-28-2009, 12:21 AM   #27
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Been looking on the A-Spec fourm on the other site and it seems i can get my 300hp to the wheels at about 12psi so im going to probably have it tuned to get something like that out of the car. 12psi on a rebuild T2 motor dosent seem that bad to me. going to work out what im going to put on the car and post it up in a lil bit. Do you think the stock FPR can handle this on the A-Spec site the car that was actually running that tune still was using the stock one that safe or should i consider upgrading it here since im working on the fuel system anyways.
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Old 07-28-2009, 01:40 AM   #28
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Stock FPR is good to 400hp - that's my rule of thumb.
I don't change it out until you start getting to 500hp - that's my rule of thumb.


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Old 07-28-2009, 02:24 AM   #29
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Ok Ted sounds good to me as im lookin at that car i think ill be running 8-9psi in my car should be all i need. I am looking into some suspension stuff now i had originaly put a set of Tein Flex on order but i cancel'd them because i found a better price on them on another website also was wondering what everyone thinks of Ksport, Tein, Cusco
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Old 08-01-2009, 12:53 PM   #30
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Wondering about using FMIC vs Upgraded TMIC i found an ARC TMIC for a fairly good price wondering if this would work with the hp im trying to get to?
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