[Gach]

Originally Posted by slowbird

Dude in his 1st post he states it was 150psi.

Yes and before that which he thinks was a fluke 175. I’m not gonna argue with you or get into a debate with you. We are finding out more and more things as a thread progresses.

[Stan Weiss]

Originally Posted by slowbird

Dude in his 1st post he states it was 150psi.

Brian,
After he redid the valve adjustment he did a cranking compression test on the other 4 cylinders and got around 150 psi.

Stan

[Stan Weiss]

Is calculating cranking compression and exact science. No but it can be done fairly close. Could the ICL for the cam be way out showing 148 psi. Yes. BUT for that to happen the CR has to be far different than 8.0:1

Stan

[400 Lemans]

https://forums.maxperformanceinc.com...d.php?t=834899 Here is a good thread on the 60240 installed dot to dot.

[b-man]

Thread where the 60240 gets some good marks in a low-compression late 400:

https://forums.maxperformanceinc.com...d.php?t=800911

[Stan Weiss]

Originally Posted by footjoy

Around 8.75-8.80:1 All cylinders were 156-162 with no leak down.

Thanks

Just another example of why some of us say the OP's problem is not the cam phasing.

Stan

[Gach]

Well then now that he got the carburetor adjusted, and dose the adjustable valve’s with poly locks and studs. Let’s see what he comes up with…how it turns out. Instead of focusing solely on Cam phasing.

[PAUL K]

Originally Posted by Gach

Pual I can’t believe your even saying that. I’m not going to get into it, its a waste if time, but a cam ground on a 114 changes the overlap, then compression comes into play.. so a cam on 114 with only 8.1 compression, is going to be a nightmare. especially if it has a ton of overlap. WOW! I’m not saying that is the issue obviously he’s had other issues. But if it is ground wrong it could be compounding the other issues. I mean let’s try to help the guy out instead of arguing over who is the cam genius

Leave it to me to interject fact into a good Internet thread. I agree, let's help the guy out. He's down a crap ton of horsepower.... Doesn't make sense to send him on a wild goose chase looking for eight.

[Gach]

Post #10 was interesting,

https://forums.maxperformanceinc.com...d.php?t=834899

[PAUL K]

Post #25 is informative

[Gach]

Originally Posted by PAUL K

Post #25 is informative

I like that…thats a good one….LOL

[grandam1979]

So 10 pages later how much power could a guy even expect from a low compression 400 with a small cam? 250-300hp if lucky I’m thinking. It’s only going to feel so strong with those parts even if all is good. So now let’s hear how I’m a 100hp off.

[Gach]

He said car wouldn’t go over 60 mph. Which that should be a issue. Thats what bothering him.

[Shockwave78]

Originally Posted by slowbird

I thought you had said in a previous post (post 18 on 1st page) vacuum was 15 at idle with current cam (18 with stock)? Now it's 10?
Any chance you can post pics of spark plugs? I would be looking into carb and ign timing.

The float on the carb was adjusted backwards, so it was running extremely rich, I got that dialed in and it seems to be running lean, but the mixture screws are only 2 turns out, in a bit I'm going to reajust the mixture screws and recheck the timing and take it out for a spin, I am going to swap the plugs today so Ill post some pictures when they come out. And yes, the vacuum was 15" and it is 10" now

[Stan Weiss]

Originally Posted by Shockwave78

The float on the carb was adjusted backwards, so it was running extremely rich, I got that dialed in and it seems to be running lean, but the mixture screws are only 2 turns out, in a bit I'm going to reajust the mixture screws and recheck the timing and take it out for a spin, I am going to swap the plugs today so Ill post some pictures when they come out. And yes, the vacuum was 15" and it is 10" now

Good luck. For that cam and your engine specs 10" sounds to low.

Stan

[steve25]

Since it been running whatever amount of time now on the edge of flooding out I wound not even start it again no less take it for another drive before I changed the oil and filter.

[Shockwave78]

Originally Posted by Stan Weiss

Good luck. For that cam and your engine specs 10" sounds to low.

Stan

just found an intake leak at the heads on both sides, when I covered the primaries idling the engine picked up speed and the vacuum increased to 13-14"

[steve25]

When you pull the intake to see what’s going on and then you go to reinstall it make darn sure that without a gasket being used it will sit flush on the heads and not first bottom out on the push rod cover.

This is easy to check with some clay or balled up Aluminium foil for a crush test.

[Shockwave78]

Originally Posted by steve25

When you pull the intake to see what’s going on and then you go to reinstall it make darn sure that without a gasket being used it will sit flush on the heads and not first bottom out on the push rod cover.

This is easy to check with some clay or balled up Aluminium foil for a crush test.

I am using an oe vally pan, though not original to the engine, I will definitely do that

[Gach]

Pull the dipstick and smell the oil on it. See if it smells like fuel. Wow ! You had allot going on. carburetor issues intake leaking valve adjustment, glad to see its not the cam. Yeah I would change the oil anyway, taking chance of the rings getting wash out. Put fresh set of plugs in there too.