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Old 07-29-2018, 10:08 PM
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NeedsWings
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Join Date: Jan 2007
Location: Michigan
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Default Re: Pulley exploded?

So the purple 2 piece "solid" crank pulley is NOT a ASP pulley as they use a dampened stock pulley to start with. They may have made the waterpump pulley but i do not believe they made the crank pulley. That looks to be a LET 181 or 185mm pulley. That pulley alone can lean out your motor if you do not have enough fueling mods. With you now stacking on a 65mm pulley you are greatly worsening the scenario. I suggest you remove the aftermarket sc pulley ASAP and put the stock back in its place until you are confident you are not already leaning out from the crank pulley, then add it once you have far more than sufficient fueling to handle even more boost/heat. Do you have the ability to record a datalog with the innovative wideband gauge? If so, email it over and we can discuss. After you have put the stock sc pulley back on, what sort of AFR (air fuel ratio) numbers do you see while going wide open throttle in 3rd gear? Or even above 5000 rpms in 2nd gear?