Are all heads using stock valves/seats and untouched chambers? Even if they were, there can still be a notable difference in timing...
Did you make 502rw SAE or STD? The motor had ported heads, aftermarket cam, ported intake manifold, a forged bottom end with more C/R and...
Almost as funny as making 490rw from a built to the hilt 426. :imao::whistle: Just yanking your chain Andy. I hear Ken B's been doing some...
Do I believe each head requires a custom tune to see true optimal results: Yes. The proof is in the pudding so to speak, and you have all the...
Nope, been there and done that with my Modular head guide. I don't have the time and I'm not interested in any of the heads being tested.
Did you use velocity probes to test or just a flow bench? The way you make it sound because A/F ratios and flow bench readings were similar...
Doing this test, and doing it right are two completely different animals. Doing it right (optimizing the tune for each set) would require 10x the...
Gotcha. Time for a trip to the machine shop I guess. :thumb: I'm running a ported stock TB now so I'm more interested in the UD pulleys at...
I would think anyone decent with a die grinder if not a dremel should be able to make short work of the intake opening.
That intake should be just what the Dr. ordered. :thumb3: Steve, our heads flow better than LS2s (which are LS6s) but not quite as well...
What's up Mike! Thanks for coming over, and good to see you again.
I'm pretty sure that's a Bischoff sheetmetal intake. Sure it would lose power vs. stock unless you dramatically alter (raise) the intended...
They are nearly indestructible in near stock form. John Mihovetz makes 2300hp with twin 72s using a stock aluminum block, stock forged crank, and...
Agreed.
The lower you go the better the chances no doubt, but I've personally seen it happen on a 324 BB/S (4v/4.6 based Modular) at ~10.4:1. Granted...
In order to wash the rings out you're going to have to be in the mid 10s (where Mike@BWoody was with his PMT tune done on the dyno) or lower....
+1
QFT.
Just found this thread. As expected, great job Dave. Question for flybyu: Did you say you saw about 5 degrees of STKR with both B&G and PMT...
I walked Jake (arrieta34) through the install on his 08 last night. He seemed pretty pleased.
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