1227165 ecu with custom code much better than stock ecu. (Page 10/26)
chetw77cruiser DEC 30, 08:16 PM
Well, I completed another trip to Douglas Wyo. from Walden CO. and fueled at Wheatland Wyo. I drove 140 miles and fueled the car with just 2.62 gallons. Averaged near 53 MPG with a 86 SE with 4 speed. Granted there was a good tailwind most of the way, but still nothing to laugh at. Before the ecu and code swap, I averaged 32 MPG on this exact trip, now with the swap, I average near 40 MPG without any help from the wind. I am happy with this swap so far.

If anyone is interested, I still have a couple nvram boards left for this swap.

Keep tuning my friends.

Chet W.
Ang84Indy DEC 30, 10:37 PM
I'm interested. I have an '87 2.5 5-speed.
Four_hundred_86 JAN 02, 10:44 PM
So I now own the guinnea pig SE again, having traded it back and forth. I have driven this car with both the stock ecu and now the 7165. All I can say is WOW! It feels completely different the throttle is much more responsive and the engine torque is much smoother. The car doesnt feel overall faster, but a couple ticks over stock could be possible with this tune. Butt dyno only... It really is worth the swap in my opinion based entirely on the smoothness of the revs.
Chris_narf JAN 03, 01:18 PM
Has there been an opportunity for yet for those with the 2.8 and automatics? I'm curios on how it affects drivability and fuel mileage.

------------------
-Chris
'85 V6 SE 4sp (SOLD)
'88 GT Auto (fun car)
'99 Kawasaki Vulcan 500, owned since new
'03 Sentra SE-R Spec V (Daily driver)
'09 G37x w/ Premium & Nav (wife's car)

chetw77cruiser JAN 03, 05:47 PM
So far there has been no auto cars at this time. Would you like to be the first? Maybe Four_hundred_86 could stop by on his way east and show you what I have done so far on his car.

As far as drivability, with the computer tuned correctly, you will have a better driving car. Fuel mileage should increase slightly, but with the auto probably not to much. The car I was working on before it was taken from me could average 36MPG highway as long as you were easy. Before the swap it would average about 28MPG and didn't run as good. Keep in mind that this is an 86 SE V6 with the 4 speed and 60-65 MPH speeds.
Chris_narf JAN 05, 12:28 AM
I'm okay with being the first one. If he's coming through town and I'm in town, we can certainly meet up and get something going.

------------------
-Chris
'85 V6 SE 4sp (SOLD)
'88 GT Auto (fun car)
'99 Kawasaki Vulcan 500, owned since new
'03 Sentra SE-R Spec V (Daily driver)
'09 G37x w/ Premium & Nav (wife's car)

chetw77cruiser JAN 05, 01:14 AM
You would be the first with the 2.5, so we will be entering teritory. Luckily the 7165 will run a single TBI injector so we are set in that area. Wow much skill do you have in ecu tuning? I could probably get a base program made to get things started, but you will need to datalog and send the information back. I will take that, make appropriate changes and send it back to you to flash the chip. No need to remove the computer or the chip, just need to connect a laptop with the appropriate software and off we go.


quote
Originally posted by Ang84Indy:

I'm interested. I have an '87 2.5 5-speed.
KurtAKX JAN 05, 11:28 AM
This guy pointed out something important that you've not mentioned for our 87 Fiero friend about having to take his harness apart inside the cabin, and rebuild the ECM end with new harness connectors and pins.

quote
Originally posted by KurtAKX:

I might be able to test the '7165 in a four cylinder application.

The four cylinder won't be a drop-in though, since the 4 cylinder ECMs all use edge-card connectors.
My harness is converted over to use conventional connectors since I'm using the EBL flash.

[This message has been edited by KurtAKX (edited 01-05-2012).]

chetw77cruiser JAN 05, 11:48 AM

quote
Originally posted by KurtAKX:

This guy pointed out something important that you've not mentioned for our 87 Fiero friend about having to take his harness apart inside the cabin, and rebuild the ECM end with new harness connectors and pins.




Good point, forgot about that. Best way around that would be to make an adapter to go between the 4cyl harness and the 7165 ecu. I could make something up fairly quickly if others are interested. I could do this for the v6 harness as well. This would make for an easier swap and allow to go back to the stock computer for whatever reason.
Ang84Indy JAN 05, 11:33 PM

quote
Originally posted by chetw77cruiser:

You would be the first with the 2.5, so we will be entering teritory. Luckily the 7165 will run a single TBI injector so we are set in that area. Wow much skill do you have in ecu tuning? I could probably get a base program made to get things started, but you will need to datalog and send the information back. I will take that, make appropriate changes and send it back to you to flash the chip. No need to remove the computer or the chip, just need to connect a laptop with the appropriate software and off we go.




Sent you a PM. Haven't tuned an ECU yet, but ready and able to learn.