ABQ Mike
Active Member
There are multiple ways to get a vehicle to safely handle more boost, but with also being new to these vehicles (I’m a gm and ford tuner), I don’t know what the limiting factor was in that power level.The max out comment is based on the post #35 as I don't honestly know the limits of this engine nor its flaws and while have been searching haven't found enough the information. I know tuning now is limited but the engine have been for some time
Not trying troll here believe me, I love my truck and its been less than a month with it. My builds have been DIY (except for tuning) The mustang comment wasn't made with any particular intention and sure the 750 wasn't with the stock setup but information in forums like these, know the limitations and weak points for that platform.
The number I was looking for how much power/ torque these will handle without opening the engine, given all the proper fuel and tuning conditions.
If it was knock/detonation, the only solution is octane to achieve more power... unlikely but possible if these engines are higher compression. Blower cam, or opening up the exhaust will help that, but at some point it’s still a limiting factor without good fuel such as e85 or 100 octane/torco additive.
If it was fuel limitations, you might need injectors and/or pump... with direct injection that is a significant cost, but on port injection like these have, it could be either availability of fuel components, price, or inability to tune for those fuel components. The new gm trucks can’t make much over about 450 whp as they run out of injector, and the corvette injectors/pump/cam kit will set you back about $10,000 installed, just to get another 50-100 hp before you hit the octane limit. I’ve done a few of the new Escalades and they run out at about 7 lbs.
It could also be mechanical limitations such as rotating assembly, transmission etc, but it’s highly unlikely that an engine in today’s market would be limited to 50%, however it is possible something further down the line didn’t like it. I’ve seen many gm and ford trucks frag transmissions and transfer cases with twin screw blowers due to the torque.
So without having one in front of me and seeing data logs, it’s impossible to know why Whipple stopped at 7 lbs.