Originally Posted by mjs1231

You guys forgetting to get rid of the old ecu or at least replash on a dyno, why u ask ? stock ecu is desinged with efficiency in mind , not performance, 50 hp gain by replacing and tunning the new ecu with all stock parts. do the math. think of it like this.

a stock windows computer with stock drivers for the hardware when there are high persormance hardware install on the computer = ****ty performance. Now install the performance drivers and it makes all the difference. Same goes for the ecu firmware. When u add mods the firmware has to be updated to ues the perf gains the mods were purchased for in the first place.

u c hardware upgrade= software ( firmware ) upgrade.


each peice u add , re program the ecu firmware to adapt to the new configuration.

I dont see anyone posting about this and that is a shame.

can u smell what the ecu is cookin


goto a dyno shop , upgrade the firmware and re post with gains.


you maybe suprised what happends, also remember to use wide band sensors , they sample faster and are more acurate.



i am non boost and am pulling 400 hp with a automatic tranny
speed force racing twin throttlebody plenum
http://www.speedforceracing.com/prod...y_g35imani.php

borla exhaust
unorthadox light flywheel and pulleys
utec ecu
hotter spark, cooller plug, uridium
sun voltage sys


I installed all the parts except ecu then had ecu and dyno,

wow i said wow wtf i could not beleive it, u sure this is my car, what did u do, omfg slow down, holy shttt did u add nitrous
, no sir just tuned is correctly

Originally Posted by mjs1231

You guys forgetting to get rid of the old ecu or at least replash on a dyno, why u ask ? stock ecu is desinged with efficiency in mind , not performance, 50 hp gain by replacing and tunning the new ecu with all stock parts. do the math. think of it like this.

a stock windows computer with stock drivers for the hardware when there are high persormance hardware install on the computer = ****ty performance. Now install the performance drivers and it makes all the difference. Same goes for the ecu firmware. When u add mods the firmware has to be updated to ues the perf gains the mods were purchased for in the first place.

u c hardware upgrade= software ( firmware ) upgrade.


each peice u add , re program the ecu firmware to adapt to the new configuration.

I dont see anyone posting about this and that is a shame.

can u smell what the ecu is cookin


goto a dyno shop , upgrade the firmware and re post with gains.


you maybe suprised what happends, also remember to use wide band sensors , they sample faster and are more acurate.



i am non boost and am pulling 400 hp with a automatic tranny
speed force racing twin throttlebody plenum
http://www.speedforceracing.com/prod...y_g35imani.php

borla exhaust
unorthadox light flywheel and pulleys
utec ecu
hotter spark, cooller plug, uridium
sun voltage sys


I installed all the parts except ecu then had ecu and dyno,

wow i said wow wtf i could not beleive it, u sure this is my car, what did u do, omfg slow down, holy shttt did u add nitrous
, no sir just tuned is correctly

Originally Posted by charged

Trying to figure out how much we spend on mods.

Originally Posted by z350boy

There is a simple way to figure out this information. I have done it myself and found it very informative (sometimes to much so!!! lol)

(1) Make excel spreasdsheet -
(2) collect receipts and input information
(3) auto sum the cost column
(4) Look at total cost figures
(5) Remain calm when you wake up in the ambulance ( after having passed out)

Originally Posted by charged

Trying to figure out how much we spend on mods.