Quote:
Originally Posted by jessrayo
My limiter was set to 6800 originally but due to the intake air temps getting way too hot we rolled the rpm limit back to 6400. There is some variation with pulleys but generally speaking, the blower is running more than 3 times the engine rpm. For very short bursts those rpms may be okay but sustained periods above 5700 rpm is going to generate more heat than the supercharger cooling system can possibly remove.
|
This is a good point. The only way to really know the right shift point for your setup is a combination of dyno pulls and real world testing at the drag strip. Depending on how hard you are overspinning the blower, what cam you have, and what hx/intercooler setup you are running, more rpm may not equal faster times. No point in going a few hundred rpm higher if the result is much higher IAT2's as you pull into the next gear.
__________________
2012 A6 Coupe 630RWHP 10.93@125
Mods: ID850 Injectors; D3PE HX, Reservoir & Atmospheric Catch-Can; LPE 2.55 Upper & 9.1 Lower Pulleys w/ ATI Damper; LPE Idler Pulley Relocation Bracket; "Green" Serp. Belt; Cat delete;ADM Exhaust Override; Magnaflow X-Pipe Muffler (in addition to stock mufflers); Cold Air Inductions CAI; 160 thermostat; LS9 Isolator; Port/polish snout and intake runners; LPE GT9 camshaft with dual springs and titanium retainers; Kenne Bell BAP, Install and Engine Tune by Serious Hp; Fab work by D3 Performance Engineering; Trans Tune by Keith; Coming Soon: Flex Fuel Conversion.