[HUMMERcustoms.com/TAZ]

Raven
It does not hurt and the spacer I choose to run is the "Helix Power Tower" by Enhanced Performance Products. The Gran is designed, if You buy the cold air calibrated version, is to try and help get a better balance of fuel and oxygen. It should give You a feel of sharper throttle response. The wideband tuning I'm messing with takes care of all that so I will run the stock MAF till it is time to let the tuning software take over for the MAF.

As I mentioned and have been told by several tuning specialist that if you are going up in boost the factory MAF will work until about 10lbs. of boost so the OEM MAF is no bum piece of equipment. That is the only reason I have not put a Gran MAF on, otherwise a Gran would be on my rig. I will be removing the MAF in boost at some point so no need to spend the money.

The Helix Power Tower is designed for optimum fuel/air mix which the Gran MAF is calibrated to help improve the amounts. The spacer seemed if anything to help the low end which is done by speeding the air flow up and getting the air to spiral more to improve the mix and how fast it gets the blend done before it all gets into the cylinder causing a more powerful firing etc.

I do not see any reason why they should not compliment each other, especially in a non boost situation. I would pick the spacer if forced to choose between the 2 but, since You have the Gran MAF I would not hold back in using the spacer. Each part of the puzzle You can put together is going to all add up at some point to maximize the efficiency of Your engine. Just as with a stock setup I would not hesitate to add MSD coil packs and Taylor wires to maximize the power of the spark to make for a more efficient burn as I can get. The handheld tuner then has it's place in the puzzle as well.

There are allot of add-ons that I have tried before going to SC that when all done together got my rig to run really nice. I got a Magnuson sponsored so I moved into the boost world, plus it looks good for shows. Most of these add-ons have been mentioned in this forum by many. If You would like to PM me I would be glad to try and do my best to give an honest assessment of what you have done and what you may want to do more. No secrets or anything it is just better to discuss Your needs in specific rather than make suggestions in a generalization. The add-ons would come to a more reasonable cost than going to boost and all that goes with tuning for it plus all the gauges You should have to monitor what is going on. Each of us must do what they feel is best for ourself. So I would research others ideas that should be able to be found in a search. Maybe just Google the non boost performance opinions that are all over the net.

Hopefully i have been helpful Raven. If I have confused things rather than clear it up please ask so i do not get You going off into the wrong direction.

TAZ