we use an eddy current dyno that loads the roller via an electro magnet. For these tests, I set the load at 10% of its capacity and left it on for the whole run. This just helps simulate the weight of the vehicle a little and helps the boost come up more quickly

 

I was thinking about making my own intake but I didn't think the numbers would be like this. I would imagine a guy could just get a U-bend from Summit and make up a flange and go to town?!?!

Andy

 

I would imagine a nice stainless or aluminum mandrel 4" pipe would get the job done. I know there is a guy on TDR talking about making one. Definitely not as advanced as the ones tested, but I believe it would still make improvements

 

Im just wondering why only SW #7 was used rather than #9. Was it tested and your best overall gains were for whatever reason on #7??

 

Yes, 7 has yielded the best results on my truck and its the way I normally drive it. I actually lost a little on 9 the last time I ran it. I am pulling fuel pressure to 3psi on #7, so until I get the FASS installed, 7 is all I got.

 

Oh i see, thats still a lot of dough for only 10 or so peak hp gain, but the diff. in it makes in the lower range is really impressive. I wonder if this is more noticable in say a 6 spd. truck due to its always falling way down and having to build up again 4 or 5 times through the gears? Just a thought - Seems an auto keeps every thing tighter in its rpm band. Thoughts???

 

does putting on one of these intake manifolds void the factory warranty??

 

Moss Magnussen says they would have to prove it caused a problem, and I think they would have a hard time with that.

The 6-speed question is a good one. I *think* opening up the intake tract has helped the turbo spool faster, so that should be good for the 6-gunners.

 

Excellent review! I love hard data dyno testing......

Doug

 

Well I suspose that goes on the list of stuff to buy for my truck then

 

Cool test, but I feel it's a bummer that the GDP horn was not included.

It happens to be my favorite, and the one that seems to be able to fit with a PacBrake compressor...

 

I didn't buy the cfm+ for performance but more for looks. I agree it helps some, but not alot, just eases the wear and tear process by allowing the potential of cooler air. I do enjoy having low egts though, even at wot I rarely see over 1100*.

 

I agree with the sentiment here that that is a nice article and test. I am about to buy one so the article is very timely for me. I really haven't considered the CFM until now. I was looking hard at the AFE Bladerunner and the GDP. I think they are ALL overpriced!

 

did you do any tests on egts?

 

Like to have seen the Glacier and the Banks tested.