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Power Strokes
6.4 Aftermarket
KC Turbos 6.4 turbo testing
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[QUOTE="KCTurbos, post: 1546671, member: 13852"] Well it has been a little while since we have posted anything on our 6.4 testing here at KC Turbos. Better late than never? Right? . Chris Buhidar from Truck Source Diesel & Off-Road spent some time live tuning our truck on the EZ Lynk and it runs amazing! Coming from H&S the shifting and overall drive ability is amazing. The high idle option is also really cool... especially here in AZ when I sit idling and want to blast the A/C. The h&s did make a little more tq but runs a lot more timing and won't downshift on the dyno (which sucks on the street). . We are starting off with a drop in 73mm LP unit with stock turbine and cover. Stock HP turbo. Very impressive what adding just a 73mm wheel on the LP can do. No noticeable difference in spool up at all on the streets. Just more power up top. . Stock inj and HPFP (2200us and just barely starting to drop rail pressure down to about 22.5kpsi) . stock LP and HP (h&s) Yellow graph 590hp 1296tq 2500rpms 41psi boost and 47psi ebp 3500rpms 33psi boost and 65psi ebp . 73mm LP and stock HP (TSD EZ Lynk) Blue Graph 628hp 1268tq 2500rpms 40psi boost and 48psi ebp 3500rpms 44psi boost and 73psi ebp . So the 73mm LP added a lot of power from about 2500hp and up. At 2500rpms the stock turbos start running out of air and drop boost all the way to redline. . Peak HP gains was 38hp But at 3500rpm redline in gained 100hp . So what is the green graph? Well this is how we like to test spool up. The Blue graph would be more of a representation of a boosted launch at the track with a lot of load. The Green graph is just rolling into the throttle at 2000rpms with very little load. . Now that we are not switching tuning platforms, there willl be much better before/after graphs and will be able to start stacking them for data sake. [ATTACH=full]178865[/ATTACH] [ATTACH=full]178866[/ATTACH] [/QUOTE]
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