all the setups seem to be on the high side of things.
anyone had a set of heads done by them?
http://www.advancedinduction.com/

 

Went with Lloyd myself, but I don't believe I've heard anything negative about AI's work. Or at least anything negative that wasn't some sort of other problem that had nothing to do with AI's work. Your right though, some dyno #'s would be nice, and not just the ones off their site.

 

120,000+ w/ 7lbs boost 431/475 after tuning it tonight.

 

"and our tolerances are measured in Microns (.000039") as opposed to Thousandths (.001")." - From AI's site....

There are no seat and guide machines capable of those kind of tolerances...
I would like to see what dial-bore guage they have that will measure guide clearances to the micron...

You would be hard pressed to find a CNC mill that can hold to the .00005" without chasing offsets around trying to compensate for air and coolant temperatures.

 

Nice #'s, is that tq. # accurate? I'm not familiar with boost. Stock short block you say? No concerns?

 

All numbers correct - Concerns? Yeah, plenty but i'm not going to worry about it. I went into installing the sc knowing that it's only a matter of time before it grenades.

I still need to fix the ignition issue - there's still a little bit more power left in it. The car was breaking up badly at around 5000k

 

Mine were done by Ai and they did a great job, dyno in sig. Bear in mind it was 100 degrees that day and my shorties and/or exhaust are holding my car back as there was some restriction. The car is all smog legal here in California so the cam is pretty mild. With a decent exhaust (ie long tubes) I would expect around 400.

 

Those numbers are about the same LE gives for his packages. It's just his are RWHP figures and AIs are at the crank.

 

Well my buddy Waswa (GREASE) had his heads done by Phil - put down 412 to the wheels. He's on the website - this is with a GM847 cam.

 

i dont see 35rwhp out of a longtube over a shorty, but those are very good #'s for smog legal.

 

all of their(AI) info stats "rwhp"

 

Yeah, it might be wishful thinking, if I find what the restriction and fix it, I'll post new numbers

 

Ah, i wasn't looking at the "Recommended Useage" section on their page. They list both actually. For example it says their "Street Rebuild & Porting LT1 Cylinder Head & Cam Package" makes 425-445 SAE Corrected HP. Then in the "Recommended Useage" section says it will typicaly produce 360-380 RWHP with a 6 speed. Those don't seem extraordinarily high, that's roughly the same as the LE1 package.

 

You won't go wrong with Ai stuff.

 

Amen to that.

I'd hate to be the poor fool that had to split a tenth.

Dean