Join Date: Feb 2010
Location: Huntington, WV
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Well as many of you know, Adrian sent me a 66 MadMax to do some initial testing so we could hopefully see whether or not this turbo would be worth going further with the development to see if it could possibly be used with medium sized injectors.
As of right now, this is just an "initial impressions" sort of thread. I've only been able to get about 30 miles on the turbo so far, and the local traffic situation didn't support doing anything crazy today, but I can say without any doubt that this thing is definitely flowing more air and making more power than either the Hybrid or Stage 1 turbos do. It's been a long time since I've had a Stage 3 on my truck but the way this thing drives reminds me very much of what I remember the Stage 3 being like.
Based off of MAF readings (boost for boost) on my CTS, this turbo is flowing an easy 20% more air than I was seeing with the Stage 1, which felt stronger on my truck than the Hybrid did. This turbo does spool ever so slightly slower than the Stage 1 did (on a stock turbo tune), but it isn't anything to get shook up over. I currently don't have any special tunes written for this turbo yet so I don't think it is a good idea to really talk about the spool up. I do know that I require about 2-3% less pedal to cruise down the hwy. Cruising boost at 70 mph is 4-5 psi and cruising EGTs are about 770-800F (outside air temp was about 85F). It's tough to tell as there just isn't a flat stretch of hwy here. It's like either the road is going up hill or down hill every where I go. On some big hills holding 75 mph, it was tough for the EGTs to hit 1000F. Most of the time, when the EGT probe got to the 1000F mark, it was at the top of the hill. Getting into the throttle some, EGTs start leveling off really well at about 1200F (not bad IMO for a full fueled race tune on 190/100s).
Ok well enough yhapping, I know that I don't really have a lot of information here, but I can definitely say that this turbo has some serious potential and I'm excited to see how this thing does with some 175/75s. On a side note, I was extremely surprised how smooth and quiet this turbo was. It does whistle but not nearly as much as I was expecting it to be. It has a nice soft whistle to it and the power comes on really nice and when it does, the whistle goes away. It'll be curious to see how this thing does as it is ran on more trucks.
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
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