I know some of you guys are running the 9569S. I’ve got the 6466 and looking to stay T3 for street car reasons. I’m curious if you’ve used either turbo, how would you compare them? Otherwise if you just use the 9569, how do you like it? Any information or data on the UHF turbine wheel design...

Just curious, who here has a high horsepower fully wet block? and what do you make (hp and dyno type) or trap? Looking for personal experiences please. And for those who have half fills and street drive their vehicles, how do you like it? Do you notice any overly excessive heat anywhere? I've...

Looking for some advice. Took my car for a drive after sitting since the shootout. Car warmed up in my driveway. It’s been warmed up once before without issues. After being warmed up, I drove it. After about 2 miles of 35-40 mph driving, my car dropped cylinders 2/3. They came back in for about...

Anybody here personally running more than 45 psi on a 64mm+ turbo without O rings in the head/block? I'm currently at 44-46 psi depending on ambient temps on a 6466, but I'm a little afraid of upping the boost for fear of lifting the head. I'd like to see what kind of power I can make and I feel...

So for the longest time, I thought volumetric efficiency was supposed to peak at peak torque. I also didn’t think peak torque occurred until full boost has been reached. On my logs, my peak VE seems to happen during spoolup (between 4.5-5.2k rpm) and peak torque isn’t until 5600 or so. Just...

I'm trying to dial in my AFR before I start turning things up but it seems that there's a lean spot during spool up. I'm not sure how to approach this without creating a map that jumps around. Any ideas would be greatly appreciated!

I was wondering how those of you with large cams like kelford 280's and up set your base timing? I run S3s and I have found it a difficult to get my car to idle low since base timing is supposed to be set around 750 rpm with the timing pin grounded. I usually get it down about 850 or so. I HAVE...

I'm currently tossing around the idea of swapping for S3's in my 6466 build, and wondering what everyone else thinks of this idea. This is a drag car/weekend warrior, so I'm definitely not dailying it. I see strokers commonly paired with large cams since they have more displacement, but I don't...

What could be causing a random misfire? It seems that the only time the car starts to knock is once it misfires. We've replaced the plugs(Br7es gapped at .026), wires(stock 7mm), ignition coil, TB, different injectors(450s, 560s, and 1000s) battery(XS deep cycle) and voltage doesn't seem to make...

I have the worst part of the wiring done as far as the tach interface side of things. All I have left is the 1990 1g coil pack and the ARC-2 plug that's wired for the 2g DSM.My question is, which wires from the ARC-2 2g plug go to which wires of the 1g coil pack? I apologize for the poor pic...

I've done a lot of reading and it seems as though the best place to put the nitrous nozzle is 6 inches from the throttle body. It's a 50hp wet kit (30 nos nitrous jet and 16 nos fuel jet). I'm redoing my intercooler piping, but I was wondering where I should put the GM iat bung in relation to...

When I went to the shootout, I over revved and bent some valves. It wasn't too terrible as my trap speeds didn't change much, maybe a mile per hour or two. I'm in the process of taking apart the head, but I was wondering:1: How do I know what valves to use? (size, angles, etc) 2: Are my valve...

Is there machine work that would be required to install kiggly "high pressure" beehive valve springs in a 7 bolt head? Or do they fit without machining?

What does it mean when a manufacturer says a camshaft is "stable" to a certain rpm and boost level? An example would be Kelford 272s. In this description, it says the cams are stable up to 35 lbs and 8000 rpm given a person runs the kiggly beehive springs. I currently have a set of kelford 272s...

Just curious as to what sort of intake temps anyone is getting at the end of their 1/4 mile run? At the shootout, mine started out at 100* and hit 150* by the end of the 1/4 passes. Cruising intake temps would be seen in the low 90s. Anyone else?

When adjusting cams, what is the difference between shifting the powerband without changing overlap, and adjusting overlap but not moving the powerband? When I say "moving the powerband" I mean moving each cam gear the same amount one way. i.e. (-1,-1) or (3,3). I've read the Cam Gear Tuning for...

Hey guys, I was wondering if anyone had evidence or experience of what sort of gains would be attributed to fabricating a side exit exhaust versus a full length exhaust. I'm not worried about legalities or noise. I've been stuck for some time now running high boost and high timing (on e85) but...

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