1 Attachment(s)
Whipple 5.7 Ram cam timing
I've done a ton of research on here and read a lot of good info on cam timing from several the hemi tuning veterans but.....I still don't really know where to go with my tune. I have a 2016 Ram 5.7 (completely stock long block) with 1.75" longtube headers, high flow 3" cats, 2.9L Whipple with stock 3.625 pulley. Also running 750ml/min (actual measured amount) water/meth injection pre throttle body. I'm hitting 10.5-10.75 PSI with meth through the blower and 8-9 PSI without meth. The truck made approx. 550 WHP/550 WTQ on the dyno when I had it dyno tuned. I have since started tuning my own vehicles (mainly this one) and I have made a lot of drivability changes and also cleaned up the fueling some since the dyno tune. I am running .77-.78 Lambda at WOT throughout pulls. My main question is, what should I do with the cam timing to help performance with the addition of the blower. The cam timing is still completely stock which I know is probably less than ideal with the added boost. On the dyno the truck continued to make power until almost 7K RPM (just to see), although I shift around 6250 normally. I have read a ton of good stuff specifically from Hemituna and 06300CSRT8 so I would really appreciate it if some of you guys could point me in the right direction. I will attach my current tune for critiquing. In my logs, the Exhaust Cam Angle runs advanced at around 128* at idle and very light throttle. At highway cruising speeds it appears to be fully retarding at 90* which seems strange. During a WOT pull it does follow the WOT table though.
Attachment 93285