So MT's motors make 1.71 HP per cube at 6#'s. no chiller, and a B&M blower. Zul's 540 makes 1.78 per cube at 6.5#'s with a better blower, solid roller, good heads, etc.

Where is all the controversy coming from? Because of .07hp per cube? Seems reasonable to me.

he was asked several times to post the dyno sheet,won,t do it.kind of like the thread about the boat engine with 30 hrs on the rebuild can i see the paperwork,sorry i don,t have any paperwork,NO PROOF but who really cares anyway?he stated almost 1000 hp so if that means 990 hp the number is 1.83 hp per cu in.easily achieved with a whipple but not so easy with an undersized 8.71.jmo.

Alex, what is your thoughts on static compression? I've had a lot of guys look at me like I was a reckless maniac because my engines are 9:1 with blowers lol. My blowers are 7% under driven right now making 6psi. Actually been running this setup for quite a while now, been working great. I know everyone likes the 7.5-8.25:1 range for blown stuff, but I've been outside that bounds a bit and liking how it works.

I was told the same thing,,I'm at 9-1 also,,been running like that for years,why.because most of the time I'm cruising at 3500rpm and 65-69mph.I wanted the engines the most efficient in my cruise for what I had.I almost went 9.5-1 but thought I wouldn't push my luck on the wot runs.still didn't want to rely on my knock sensors all the time.

My new engine will be ~9.1 static and I also thought that was too much for boost. Maybe not.

I run those junk 088 iron heads no less.

Me too...don't tell anyone.

My old combination 540 9:1 088 heads pro charger 5.5lbs 900hp. 7lbs ecm pulled timing like crazy. For all the anti procharger guys - lack of low rpm hp/tq planning issues. When you would hit it out of the hole the boat leaped out of the water (literally)

9 to 1 with iron heads and a decent amount of boost can be dangerous,espically with the wrong cam and no chiller.don,t believe every thing you read because i have seen a lot of guys posting up bad advice lately.as far as the guy with the 540 making near 1000 hp on 6.5 lbs of boost,i guess he could make 1500 with 8 lbs.why spend your money on a whipple when all you need is an 8.71?

EFI I'm assuming?