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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 10-10-2010, 04:36 PM   #1
FerociousP
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I have done the exact same thing with a vert... jspecc TII, na harness, 550,750s... and I got the Rtek 2.0 just recently... for a basically stock setup it works great by helping fine tune things, monitor stock sensors, and gets rid of the need for a FCD. if getting a bigger turbo I would get a little nervous about not having a more powerful standalone though as you can't boost over 14 and I'd like the ability to use faster reacting sensors and remove the MAF.

It does do some pretty cool things though... fyi I have no emissions, hence the non CEL codes. but it datalogs fairly decent and accepts my wideband signal.
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Old 10-11-2010, 03:37 PM   #2
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Quote:
Originally Posted by FerociousP View Post
I have done the exact same thing with a vert... jspecc TII, na harness, 550,750s... and I got the Rtek 2.0 just recently... for a basically stock setup it works great by helping fine tune things, monitor stock sensors, and gets rid of the need for a FCD. if getting a bigger turbo I would get a little nervous about not having a more powerful standalone though as you can't boost over 14 and I'd like the ability to use faster reacting sensors and remove the MAF.

It does do some pretty cool things though... fyi I have no emissions, hence the non CEL codes. but it datalogs fairly decent and accepts my wideband signal.
I'm going with a 1.7, once the car is back on the road and I'm not paying the bills for the rebuild I'll start thinking about sending my old turbo to BNR and other upgrades. Though most of my modifications I want are reliability and longevity mods. I'm eyeballing Sohn's MOP mod ATM
http://rotaryaviation.com/oil_injector_pump_adaptors.htm


I'm curious which pins you swapped on the N/A harness, not the VDI pin at the ECU, but IIRC there are two pins that need swapped further up the harness on the two plugs that attach to the dash harness. I've got two spare N/A harnesses and compared them to my modified harness...I can't find any wires different.
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Old 10-11-2010, 04:51 PM   #3
FerociousP
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Quote:
Originally Posted by JustJeff View Post
I'm going with a 1.7, once the car is back on the road and I'm not paying the bills for the rebuild I'll start thinking about sending my old turbo to BNR and other upgrades. Though most of my modifications I want are reliability and longevity mods. I'm eyeballing Sohn's MOP mod ATM
http://rotaryaviation.com/oil_injector_pump_adaptors.htm


I'm curious which pins you swapped on the N/A harness, not the VDI pin at the ECU, but IIRC there are two pins that need swapped further up the harness on the two plugs that attach to the dash harness. I've got two spare N/A harnesses and compared them to my modified harness...I can't find any wires different.
I went with the 1.7 at first, and it was fine, but I wanted a little more control and its only $350 to upgrade. I've been able to add fuel and (subtract fuel for idle) and it idles and runs great. turnaround is very fast. My next upgrade is a BNR stg1 (mainly for the ported wastegate). a pull from low rpm in 4th creeps to 14psi, which is where the map on the stock ecu stops. In the stage2, I actually have the injectors go almost full open if it sees 14psi.

I didn't change any pins anywhere... though I'm not running a knock sensor or boost control solenoid. All the others match up to their respective turbo pins.
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'15 Juke Nismo
'06 MX-5 GT SOLD
'04 S Silver RX-8 GT Track Day Use SOLD
'90 Black TII vert w/ Sprint RE stock port/turbo DD dyno (242.6whp@5500rpm @12psi 8psi@redline) and (250ftlbtq@4800rpm @13psi) SOLD
'89 GTUs 6p TII SOLD, '87 sport SOLD, '79 SA stock SOLD
'91 B2600i 4x4 w/ Rx-8 LSD SOLD
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Old 10-11-2010, 10:06 PM   #4
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Quote:
Originally Posted by FerociousP View Post
I went with the 1.7 at first, and it was fine, but I wanted a little more control and its only $350 to upgrade. I've been able to add fuel and (subtract fuel for idle) and it idles and runs great. turnaround is very fast. My next upgrade is a BNR stg1 (mainly for the ported wastegate). a pull from low rpm in 4th creeps to 14psi, which is where the map on the stock ecu stops. In the stage2, I actually have the injectors go almost full open if it sees 14psi.

I didn't change any pins anywhere... though I'm not running a knock sensor or boost control solenoid. All the others match up to their respective turbo pins.
I'm not running a knock sensor either and will be loosing the boost solenoid.
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