ECU Chipping?

[Quaraxkad]

Originally Posted by Telion

Well till I see otherwise my sig reins supreme though it likely should be changed to improve the forums view of Matt and my friendship :hide :

There is also a small flaw in the graph depicted in your sig, that I have never bothered to inquire about. The center graph, where the blue line is labeled "Now Mine". That is in fact the line from sr5guys chip. You may have fixed whatever caused the dip in the version of your chip that was tested, but you didn't run another dyno, and the actual graphs on display in your sig still have sr5guy in the #1 position. In all three graphs, red is the unknown not-stock chip, yours is green, and sr5guy is blue.

:dunno:

[shawnjerome81]

what an interesting thread....

[MondiVTEC]

indeed!

[94LegendaryAcuraGS]

Hmm so all of this is what happens when "the chip hits the fan" huh? I find all of this fun reading. Now should I get my car built and then obtain Telion's chipped ECU service we can run side by side analysis of them.

I just felt like tossing fuel on the flame!

[Midgez95KA7]

Originally Posted by rwheadon

I have a chipped ECU and it did nothing to improve my Legend's performance.


... I haven't installed it yet though.

rich

Rich this is freaking hilarious. My kinda of humor and you were shown no love. Now you have

[Joe E]

I'm about to do some dyno testing on factory vs chipped ECUs... I'm having a baseline dyno done today... By "baseline" I'm talking about the car as it sits today...
Type II, 5 speed transmission, Greddy cat back exhaust, short ram intake, and a Walbro 485lph fuel pump. Everything else OEM and close to 30 years old. Car was not running a few weeks ago when I bought it. It currently has a stage 3 chip (so it was written in sharpie). Next week when some more parts come in, I will do a dyno/mod day. I'll compare factory ECU vs "chipped", then first mod is removing the cat for a test pipe and comparing both ECU's again. Then I'll proceed with changing out the fuel filter and a cold air intake and getting more comparison dynos. I'll see if combination of mods and ecu's change the gain values.
There has been discussion that "some" chipped ECU's in fact make less power. This could be due to the tune itself, or the mismatch of mods based on how the tune was created. I should be able to provide more insight after doing this dyno day.

[Midgez95KA7]

Mr. Joe, any relevant updates sir regarding dyno and such?

[Joe E]

Originally Posted by Midgez95KA7

Mr. Joe, any relevant updates sir regarding dyno and such?

So there wasn't much of a peak horsepower gain with the ECU, however it did make more power through the band. Unfortunately I only got to save one of the dyno charts because my shop's laptop died and I didn't get the comparison side by side.

It made 217.7 @ 6100 rpm and 203.9 @ 5100 rpm.
I'll continue to test, tune, and dyno. I'll be posting more updates in a few weeks.

[BayAreasFinest]

Originally Posted by Joe E

So there wasn't much of a peak horsepower gain with the ECU, however it did make more power through the band. Unfortunately I only got to save one of the dyno charts because my shop's laptop died and I didn't get the comparison side by side.

It made 217.7 @ 6100 rpm and 203.9 @ 5100 rpm.
I'll continue to test, tune, and dyno. I'll be posting more updates in a few weeks.

Nice!

[buzzard]

Originally Posted by Joe E

Walbro 485lph fuel pump.

You need about 2 liter per minute fuel flow into the engine for approx 400 flywheel hp. There are approx 60 minutes per hour. You may be somewhat overspecced on the fuel pump.