imp pwr online
- June 29th, 2002, 12:42 AM
Well, after a week in my HOT arizona Garage, a few late nights getting 3 hours sleep, around 3 installs and uninstalls and reinstalls, many changes in configuration-location at what not, I have good solid test numbers.
Before Propane and with water-alky I would run 15psi (my cr is 8.5 up from stock 8.1 so my 15psi is edging 17psi acording to the final cr graph) I would easily touch 880c EGT and if running out to redline WOT in 3rd and going thru most of 4th I could top out at 920c which is kinda dangerous. Without 101 octane in an empty tankI could not keep knock down running my 15psi. It would normally hover around 10-17 knock count. Not something I like to see.
NOW, On with the show....
I started testing at low psi just to be safe. Around 10-12. No knock and EGT is LOW. I kept testing raising the PSI checking the pocketlogger, increasing some more.
After 2 hours (it is currently 95 degrees here) of CONTINUOUS-NON STOP WOT to Redline thru 2nd, 3rd, and 4th and tweaking the Propane settings and the S AFR I ended the night on what had to be blazing hot turbos.
What I ended up with:
Running 17psi (remember that is really closer to 19psi with my CR)
91 Octane gas
EGT topped out once at 840c after back to back 2-3 redline WOT
EGT after WOT 1-3rd to redline 800-820c depending on 1 minute to 5 minute rest off boost period
Knock counts by the end of the night on a HOTTER THAN HELL motor that was beat'n into the ground for 2 hours and turbos and IC's that had to be begging to STOP:
Oh, around 2-5 Sometimes Knock was 0-2.
AND I have bad motor mounts so some knock could be phantom, when I let go throttle fast the knock pops to 20+ and on the logger it is when Throttle position is 14%
AT no time can you ever smell propane and I run Apex-i Twin Chamber OPEN BOV.
I guess since it is Variable, I have it set to start in at around 2-3 psi and increase with boost from there, you NEVER feel anything but smooth power. No kick in like Nitrous, VTEC, NOTHING, just feels like running 101 in the tank. And at $4/gallon...I'll take the Propane.
After 2 hours of constant abuse On it more than off I weighed the tank. I used a little less than 1/2 pound. That's about 50 cents worth. In 101 that would have been easily 4 gallons @ $4/gallon...$16-no thanks!
And yes, the car is fast as hell now!
Any questions?
Before Propane and with water-alky I would run 15psi (my cr is 8.5 up from stock 8.1 so my 15psi is edging 17psi acording to the final cr graph) I would easily touch 880c EGT and if running out to redline WOT in 3rd and going thru most of 4th I could top out at 920c which is kinda dangerous. Without 101 octane in an empty tankI could not keep knock down running my 15psi. It would normally hover around 10-17 knock count. Not something I like to see.
NOW, On with the show....
I started testing at low psi just to be safe. Around 10-12. No knock and EGT is LOW. I kept testing raising the PSI checking the pocketlogger, increasing some more.
After 2 hours (it is currently 95 degrees here) of CONTINUOUS-NON STOP WOT to Redline thru 2nd, 3rd, and 4th and tweaking the Propane settings and the S AFR I ended the night on what had to be blazing hot turbos.
What I ended up with:
Running 17psi (remember that is really closer to 19psi with my CR)
91 Octane gas
EGT topped out once at 840c after back to back 2-3 redline WOT
EGT after WOT 1-3rd to redline 800-820c depending on 1 minute to 5 minute rest off boost period
Knock counts by the end of the night on a HOTTER THAN HELL motor that was beat'n into the ground for 2 hours and turbos and IC's that had to be begging to STOP:
Oh, around 2-5 Sometimes Knock was 0-2.
AND I have bad motor mounts so some knock could be phantom, when I let go throttle fast the knock pops to 20+ and on the logger it is when Throttle position is 14%
AT no time can you ever smell propane and I run Apex-i Twin Chamber OPEN BOV.
I guess since it is Variable, I have it set to start in at around 2-3 psi and increase with boost from there, you NEVER feel anything but smooth power. No kick in like Nitrous, VTEC, NOTHING, just feels like running 101 in the tank. And at $4/gallon...I'll take the Propane.
After 2 hours of constant abuse On it more than off I weighed the tank. I used a little less than 1/2 pound. That's about 50 cents worth. In 101 that would have been easily 4 gallons @ $4/gallon...$16-no thanks!
And yes, the car is fast as hell now!
Any questions?