08/10/2026
Itโs not every day you see a mint 30K miles 300C SRT8!!๐
Then add a Whipple to that 300C and you have a bad unit!๐ฅ
This client reached out regarding some tuning issues with the base Whipple tune, so we got him in to look things over.
We pulled the spark plugs and can see the car was running lean. We got the car on the dyno and starting work on the calibration. We were able to get some fuel in it on the low end, but it would trail off up top, so we were suspect of the fuel pump. The fuel pressure was then verified and indeed was tanking under WOT.๐ฌ
We got the DW pump out and it had broke the ni**le off, so we got a new DW400 module installed and back to custom tuning.๐๐ผ
The car rips now and makes a solid 550 whp on just 6 psi in this thicccc Midwest air.๐คช
He said next up.... built motor and 1000HP. Weโre down!๐
Dyno Graph๐๐ผ
Whipple tune and no fuel pressure
vs
Fuel pressure and HOB calibration