You may think I知 a dummy
My top end is stock and I mean untouched heads other than a BTR spring kit. I'm really curious about how it will work out. I'm confident it will work ok, but if it doesn't I'll absolutely change the top end or what ever it takes to make the combo perform.
I left the cam up to them and I feel good about it. I told them the combo and goals in detail and the first recommendation is what we went with. I don't mind and actually love a lopey idle if it backs it up with performance in the rpm range desired. If I can make 800 rwhp through the auto without stupid high iat's then I'll be feeling pretty good about the combo. I give zero f***s about gas mileage or stealth although my magnaflow exhaust isn't really very loud and I have the helical cut gears so I hear more of the motor and less of the blower.
if your heads are unported I壇 definitely send them to be cnc ported. The gains will be doubled on a boosted motor. So say you gain 40rwhp na, at 15psi that would be about 80. My buddy gained over 40rwhp on his gto by having his 243痴 ported and bigger valves. I壇 definitely do that no doubt....just think about it before putting it in.
if your heads are unported I壇 definitely send them to be cnc ported. The gains will be doubled on a boosted motor. So say you gain 40rwhp na, at 15psi that would be about 80. My buddy gained over 40rwhp on his gto by having his 243痴 ported and bigger valves. I壇 definitely do that no doubt....just think about it before putting it in.
My thinking was if I had the heads ported and larger valves installed that I wouldn't be much under the expense of some trick flow as cast heads and probably more than factory ls3 heads with just a spring kit installed. Those were the other two options I considered. I had the budget for heads and intake, but I've done enough of these to know that they always go over budget. I thought on a boosted motor not even maxing the blower that if I was going to cut costs some where it would be on the top end.
mid keep the stock intake and just have the heads ported with bigger valves. At the very very least, ported. At least if you do that you won稚 be second guessing yourself (which I always do) after getting it together. I give good advice but I can稚 seem to follow my own advice (it痴 usually a $$ issue) and it usually ends up costing me more that it would have, had I just did it the way I should have originally. That痴 why I知 going through the torture I am right now. Cuz I知 cheap and hard headed.
https://www.procharger.com/sites/def...cs_12-2019.pdf
Dynos read different, roller dynos read different, all dynos read different. And that's before the dyno operator gets involved.
And any potential airflow number that might allow an estimated power number ( however it is measured or guessed )...doesnt mean the build, the tuning, the fuel used on that build will allow it either.
So the numbers dont matter...but the D1 has always been a proven solid performer. That does matter.
Although for actual dyno numbers on various setups, RH has been doing a load of good videos on youtube lately. Definitely worth a watch
The Best V8 Stories One Small Block at Time
Im going to use my gen 3 knock sensors on the side of the block. I have extra holes to thread them right in. Do you think that痴 a good idea or would I have better results drilling and tapping the correct location on the lower rear area of the block where the gen 4 sensors go?









