First hit of da juice on new motor.
07-30-2011, 02:09 AM
#1
First hit of da juice on new motor. 632rwhp/630rwtq. motor in sig. considering it was done in 102F heat, I thought it came out good, but let me ask a few questions.
using HSW 125 shot (57/31) and nitrous outlet standalone fuel system (which is EXCELLENT btw running pure 110 octane)
1. spark is 16 deg. I'm using COS5 by EFILive to pull 6 degrees. I usually run about 22 N/A. Comes on at 3500rpm.
2. Tank Fuel = 50:50 91 and 110 octane
3. BR7EF, gapped 0.030"
4. Plugs look like hot chocolate. running ~11.0-11.4 AFR according to dyno log.
5. MSD Window Sw 3500-6600/Zex TPS trigger.
the motor sounded exceptionally good through the run never hesitating or giving indication of stress. does 2 deg per 50hp sound about right on retard? I'm going to run this thing in 100F race so its gotta be a bit conservative.
EFI Live's current settings:
fuel
spark
Considering the jets above, can someone guess which 150, 175 and 200hp jets would work best?
using HSW 125 shot (57/31) and nitrous outlet standalone fuel system (which is EXCELLENT btw running pure 110 octane)
1. spark is 16 deg. I'm using COS5 by EFILive to pull 6 degrees. I usually run about 22 N/A. Comes on at 3500rpm.
2. Tank Fuel = 50:50 91 and 110 octane
3. BR7EF, gapped 0.030"
4. Plugs look like hot chocolate. running ~11.0-11.4 AFR according to dyno log.
5. MSD Window Sw 3500-6600/Zex TPS trigger.
the motor sounded exceptionally good through the run never hesitating or giving indication of stress. does 2 deg per 50hp sound about right on retard? I'm going to run this thing in 100F race so its gotta be a bit conservative.
EFI Live's current settings:
fuel
spark
Considering the jets above, can someone guess which 150, 175 and 200hp jets would work best?
Last edited by 03EBZ06; 07-30-2011 at 02:57 PM.
08-01-2011, 01:22 PM
#3
Ground strap slightly greater than 50% toward base. No specs. Porcelain tan. I know its rich. Ill try and cut a fresh plug and post. Btw I never guess. Was thinking some of the experienced users would have an idea on jetting based on current jetting. My next test is 150 HP plug in 8 heat range and 8 degrees retard.
08-01-2011, 01:30 PM
#4
Guest
Posts: n/a
Ground strap slightly greater than 50% toward base. No specs. Porcelain tan. I know its rich. Ill try and cut a fresh plug and post. Btw I never guess. Was thinking some of the experienced users would have an idea on jetting based on current jetting. My next test is 150 HP plug in 8 heat range and 8 degrees retard.
I see what you mean about input. I just want to make sure you take your time. No need to get in a hurry, judging from the sig you have a lot of time and money into literally my favorite corvette( c5z EB). I want this thing to scream down the track and do it with the same pistons that are in there now.
