Launching with Retard Rev Only?
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Evolved Member
iTrader: (35)
Joined: Apr 2006
Posts: 700
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From: Highlands Ranch, CO
Launching with Retard Rev Only?
Couple weeks ago at the track, I got a chance to play with my launch and 2step. If possible, I'd like to build boost without the loud mad-tight fireballs coming out of my tail pipe!
Someone here suggested raising the fuel and ignition cut and only use the retard rev for launching to avoid the backfires. I set my AEM 2step to this:
2step Fuel Cut: 7600
2step Ign Cut: 7500
2step Retard Rev:6100
Tried it out and sure enough, no backfires and I could easily build large amounts of boost with this setting and quickly found I was spinning all 4 tires during the next couple test launches. This also makes the car pretty stealthy sitting on the line and draws WAY less attention "if" you were at a stop light and did this.
I know retarding the timing to build boost will quickly increase EGT's but the total time during for this is maybe 3-4 seconds max. Is there any reason to enable fuel or ignition cut during a launch?
Anyone else launching like this?
Someone here suggested raising the fuel and ignition cut and only use the retard rev for launching to avoid the backfires. I set my AEM 2step to this:
2step Fuel Cut: 7600
2step Ign Cut: 7500
2step Retard Rev:6100
Tried it out and sure enough, no backfires and I could easily build large amounts of boost with this setting and quickly found I was spinning all 4 tires during the next couple test launches. This also makes the car pretty stealthy sitting on the line and draws WAY less attention "if" you were at a stop light and did this.
I know retarding the timing to build boost will quickly increase EGT's but the total time during for this is maybe 3-4 seconds max. Is there any reason to enable fuel or ignition cut during a launch?
Anyone else launching like this?
