Thread:

TPI 848 vs TPI 305ax

Hey Gary,

Just curious -- what would you prefer to run? The 848 or a new TPI with the 5liter Whipple detuned to 900ish? Seems like the detuned motor would barely be working -- increasing longevity. Thoughts?

Thanks,
Patrick

Originally Posted by roln20s

Hey Gary,

Just curious -- what would you prefer to run? The 848 or a new TPI with the 5liter Whipple detuned to 900ish? Seems like the detuned motor would barely be working -- increasing longevity. Thoughts?

Thanks,
Patrick

The detuned 5.0 would be the way to go if you could swing the $$$$. Thats what it always comes down to. The motor in the pic below is essentially an 848 with a 5.0 liter on it. A couple minor differences, but the longblock is EXACTLY the same. There is a $15K difference between the two.

I would like to elaborate on this topic for a second. I would not compare the 848 to a 5.0 motor. The 848 was built for the customer that was looking for an 800+ hp motor with room to grow. The 848 can make 950 with a MOAC intercooler, another poound of boost and a program change. I understand it's not an 848 anymore, but the entire pan to intake does not change, which makes it pretty easy to do. I don't like to sell "maxed out" engines. Thats why my "948" motor has a 5.0 liter Whipple on it. It gives it room to grow without the customer buying a whole new bigger engine when he get's used to the power he has. I have never had a customer say they should have bought LESS power

Originally Posted by TPI

I would like to elaborate on this topic for a second. I would not compare the 848 to a 5.0 motor. The 848 was built for the customer that was looking for an 800+ hp motor with room to grow. The 848 can make 950 with a MOAC intercooler, another poound of boost and a program change. I understand it's not an 848 anymore, but the entire pan to intake does not change, which makes it pretty easy to do. I don't like to sell "maxed out" engines. Thats why my "948" motor has a 5.0 liter Whipple on it. It gives it room to grow without the customer buying a whole new bigger engine when he get's used to the power he has. I have never had a customer say they should have bought LESS power

That's exactly what I was thinking - good to know. BTW - $15K, wow, is most of that just the difference in the MOAC intercooler and the whipple itself?

Roln 20s

Originally Posted by roln20s

That's exactly what I was thinking - good to know. BTW - $15K, wow, is most of that just the difference in the MOAC intercooler and the whipple itself?

Roln 20s

ouch...huge difference for the bigger blower

Personally I was surprised at the cost of the polished whipple kit in the first place

The pictured motor is gorgeous!!!

Originally Posted by Cole Trickle

ouch...huge difference for the bigger blower

Personally I was surprised at the cost of the polished whipple kit in the first place

The pictured motor is gorgeous!!!

Sure is

Originally Posted by roln20s

That's exactly what I was thinking - good to know. BTW - $15K, wow, is most of that just the difference in the MOAC intercooler and the whipple itself?

Roln 20s

The 5.0 blower kit is quite a bit more than the 3.3l kit because there is a lot more there. The MOAC is an added expense, and there are more custom fittings/hoses with the MOAC. The 5.0 has 10 injectors and has a different wiring harness, as well as a isolated IAC block with 2 IAC units(little air pumps). There is just quite a bit more work with the 5.0 motor throughout the whole build, including the final programming/set up.