cat delete=turbo boost=blown gaskets?

[f350powerstroke]

since removing the cat frees up more boost wouldnt it bring more stress on the head gaskets?

[HeavyAssault]

Deleting the cat doesn't free additional boost, it may allow the turbo to spool quicker since there is little (if any at all) back pressure on the turbine. Stress on the head gaskets is created by cylinder pressure, add NO2 or propane would cause problems.

On a stock truck, just deleting the cat doesn't automatically mean you just increased cylinder pressure.

[f350powerstroke]

thank you sir btw what kind of lift kit and tires u got there....?

[03f250stroke]

heavyassault pretty much cleared that up. guys run programmer and never have problems with the head bolts. some trucks are different. I ran a programmer, water meth, exhaust, all the bolts on and never had a problem. i found a dealer that was cool enough to replace them with ARP head studs though

[Jarrod B]

ive been told by a few mechanics that back pressure is necessary

[03f250stroke]

what about the guys with hood stacks? granted they all have alot more work done but still, i ran around with just my downpipe and the truck wasnt affect at all. stumps exhaust just lays under the truck there LOL

[AFBLUE]

Originally Posted by bockhold

ive been told by a few mechanics that back pressure is necessary

The turbo typically creates the "backpressure" nesssary for a good running engine, its actually a flow path the is more of the concern. If you have ever taken a hose and created a suction on it, and the hose maintains the flow? Thats what exhaust systems do and its called scavanging, so dumping right after the turbo isnt always going to yield more power.

[FordCowboy]

As far as the back pressure I thought the turbo kind of created it's own, but I know that spool is affected. If you put a huge downpipe on the exhaust has an easier exit so less will be used to turn the wheel and spool the turbo.

[HeavyAssault]

Originally Posted by f350powerstroke

thank you sir btw what kind of lift kit and tires u got there....?

DR/ICON 4.5" with rear 5" blocks. Those are 325/65/18 MT ATZs on Weld wheels. I have since switched to Pro Comp Xtreme ATs in 35x12.5 flavor. I got to update those pics.