Okay, you may ask, MAN VAN. What else would you call a 3/4 ton full size van with an EFI 460, C6 trans, and 4.10 gears w/ limited slip. Oh, and it's a 12 passenger Club Wagon. This is definitely not your siginifcant others mini van. Baby on board my @SS.

In other posts, I have addressed my check engine light issue (traced to a an EGR valve/position sensor that works okay 99% of the time). And I think I have that figured out and resolved. But I digress...

Since getting it running mostly right, I defintely want some more pulling power, but don't want to open up the motor or play with the FI system. Since buying the van, I have replaced the plugs, wires, cap, rotor, fuel filter, air filter, and PCV valve. This is what I have in mind for the time being, if there is something more, please chime in

1) remove the air intake "trumpets" as far as I can go and still leave a good sealing lip for the air filter tubing

2) bump timing up to 12 degrees initial

3) replace the exhaust system from the cat back, going to a single 3 inch pipe with free flow muffler and 3 inch tip.

I'm thinking these changes alone will help quite a bit, maybe 20 hp and 30 lb/ft of torque over stock, giving me 265 hp and 410 lb/ft of torque. Since this van is slated for towing a 3000 lb race car on a 2000 lb trailer plus occupants, low end grunt is a big deal.

I'm also looking at revising the cold air intake system, maybe even a hood scoop system.

So, what do you think? Am I on the right track here or am I'm completely in the dark. I don't want killer power increases, but enough to be felt and make my time and effort worth it.

What say you??

Phil
'01 F250 Superduty V10 4x4 x cab
'89 E250 Clubwagon 460

 

Been looking into a hood scoop idea myself, brother in law brought up a good topic, rain entering it, not sure how to alter it the keep the rain directed out of the engine. Cold air intake is impossible, you have nowhere to run it with the tight engine compartment, or lack of, but upgrade from stock is a plus since it looks impossible to be effective. The straighter and smoother the bends to the throttle body, from the air box, the faster the air can move. I'd install a performance chip, that'd make the engine match your other upgrades.