Quote:
the Gurus feel the intake side isn't as much the problem, as the "beloved Dog Leg exhaust ports" resticting the exhaust flow out thereby restricting scavenging and intake flow during valve overlap.
The "guru" telling you about the crappy AMC exhaust port is a Honda mechanic?
No Greg was the team mechanic for team Jaguar. Then started working for Reeves Callaway, doing Austin Martin racing engines, does racing Ferrari engines, and builds the hell out of Maserratis. Joe worked for Callaway too. Denny does something with a Ski Doo engine with turbos that makes 150 HP out of a 3 cylinder.
"restricting scavenging and intake flow during valve overlap"????
That doesn't make a bunch of sense since you are using a blower & pushing the mix out under (low) pressure. I do believe the lower than to be expected 693 HP@5100 & 704 ft.lbs@4000 numbers could come up quite a bit with more boost &, the way I understand it, you are committed to 89 octane? Spend that kind of money & not at least mix 50-50 with 104??? I would at least look at water injection for when the knock detector senses ping.
Well I thought of those options, but I don't want to screw around with carrying and mixing fuel when I'm away from home or running out of H2O or alcohol on a hot day on the interstate.
This is going to be a daily driver.
Absolutely more boost is the easist thing to do. Going to12- 15 lbs of boost just by changing pulleys would probably bring this thing to 800-900 HP easily
The FAST system doesn't have a option for a knock sensor thats one of the drawbacks to the FAST. I do have access the 100 LL Avgas at the airport but again I don't want to have to search away from home. Someday I want to visit MC in Minnesota and I want to just leave home with my Visa card and not have to use anything else.
I was just reading your list of engine mods & you say "ports equally ported to same size (what about flow?) using the Bridgeport", that doesn't quite sound like a top-notch, AMC experienced port job, & where are the flow numbers?
Just dumb old me making all the ports all equal size on a vertical mill and checking that all the volume all the same using H20 no flow bench. And polishing using Performance American style as a guide.
Granted not the most scientific way
Most bang for the buck? How about a 304 turbo at 797HP/930ft.lbs???
Yes fansastic! But that isn't running on pump gas is it?
Sorry, not intending to inflict insults.
And no your not in any way insulting me I like to learn and a good discussion is good for my head.
I found out one important thing, my knowledge in cylinder heads is lackingNOTE: Indy SR-1 heads are a DIRECT replacement for doglegs, no spl intake required.
