thump_rrr
Senior Member
Nearly a year after the install of my S/C I finally had the opportunity to bring the car to JDM for a custom tune.
Before putting it on the dyno I ported the S/C intake and installed a GT500 throttle body the same way Cali HP addict had done.
After the 2 dyno pulls Jim looked at the results and told me that the tune is perfect and no custom tuning was required saving me a few hundred $$$.
The second run was done with the coolant and oil temperatures at 201ºF
This is on a 3.2" pulley running 93 octane pump gas.
Before putting it on the dyno I ported the S/C intake and installed a GT500 throttle body the same way Cali HP addict had done.
After the 2 dyno pulls Jim looked at the results and told me that the tune is perfect and no custom tuning was required saving me a few hundred $$$.
The second run was done with the coolant and oil temperatures at 201ºF
This is on a 3.2" pulley running 93 octane pump gas.
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. I bet you left at least 35 more RWHP by not getting a custom tune. The tune is only perfect if you datalog & look at the fuel trims and see if commanded is actual at every rpm point and there is no way to do via mail order.


