As some of you know I had my car built by RSI last year. Paxton build, forged motor, fuel system, AEM etc etc etc. The car came back on a conservative tune making 760rwhp as they were not able to tune the car on California 91 octane gas. The car came back running good but I could feel hesitation as it pulled through the RPM and my assumption was fuel. Long story short I decided to send the car down to AC performance to have the final tune done and mess around with a few other things.
Well the car came back a different animal. Feels like I picked up another 150hp but it was only 50. I guess a right tune makes that big of a difference. We ended up running bigger fuel lines and making custom fuel rails. I originally wanted to run a smaller pulley for more power but decided that 805rwhp on 91octane and a conservative tune was safe enough. I know we could have pushed it up towards 850-875 range but i rather be safe then sorry.
Tod at AC performance got this sucker running PERFECT!. It drives and acts like a stock factory Viper but as soon as you lay in to this beast, its over!
Check out some before and after dyno graphs and I'm sure Todd with chip in with the details.
Also some car **** for your pleasure. FYI the last pick does not show the custom fuel rails, that was before.
Well the car came back a different animal. Feels like I picked up another 150hp but it was only 50. I guess a right tune makes that big of a difference. We ended up running bigger fuel lines and making custom fuel rails. I originally wanted to run a smaller pulley for more power but decided that 805rwhp on 91octane and a conservative tune was safe enough. I know we could have pushed it up towards 850-875 range but i rather be safe then sorry.
Tod at AC performance got this sucker running PERFECT!. It drives and acts like a stock factory Viper but as soon as you lay in to this beast, its over!
Check out some before and after dyno graphs and I'm sure Todd with chip in with the details.
Also some car **** for your pleasure. FYI the last pick does not show the custom fuel rails, that was before.
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