Fuel Bad regulator diaphragm?

JD1964 · May 24, 2025

Noobz347 said:
You're referring to the "transfer function" of the MAF itself.

Yeah... That will help.

I’m foggy about the correct terminology but I have a sheet of paper full of numbers relating to the MAF, that’s for sure

JD1964 · May 25, 2025

Been reading and thinking some more. I might try a re-torque of the head studs. I have yet to try that. Heres a direct quote from the Cometic website.

“If somebody calls me and has a leaky gasket, I tell them to try a retorque. If the block and heads have a good finish to start with, that will typically take it away.”

Ask The Experts - Head Gaskets - PerformanceRacing.com

Cometic Gasket supplies hi-performance gaskets for a variety of motorsports markets: ATV, Drag Race, Domestic Automotive, Harley-Davidson®, MX/Dirt, Off-Road, PWC, Road Race, Snowmobile, Sport Compact and Street.

www.cometic.com

Noobz347 · May 25, 2025

JD1964 said:
Been reading and thinking some more. I might try a re-torque of the head studs. I have yet to try that.

Oh, wow. I failed to mention this because I thought it would be dumb to mention.

Additionally, I retorqued mine twice with a KB in the damned way. *fat sigh*

JD1964 · May 26, 2025

For giggles, here’s how the FMU with 12:1 disc affected the fuel pressure when I used Mighty Vac on pressure function to apply simulated boost.

View: https://youtu.be/1q-qUYyQgjs?feature=shared

JD1964 · May 26, 2025

Resting with a cool engine I pressure tested the cooling system. Although it has a minor leak from the water pump gasket, it held close to 30psi for 45 minutes before I released the pressure.

JD1964 · Jun 1, 2025

Got some work done today cleaning up scrambled vacuum hoses and electrical wiring.

I got the driver side head re-torqued. I’ll do the other side tomorrow maybe.

I did one nut at a time. (ARP stud setup). In sequence, one at a time, marked the nut with paint pen. removed the nut, lubricated nut flange and stud threads with ARP moly, screwed but back down finger tight, torqued with Snap On click type to 85 ft lbs. Every nut ended up consistently 1/8 turn beyond where it was before I removed them.

JD1964 · Jun 10, 2025

Finally got it all back together. I just got back home after flogging it about 1/2 dozen times. To my extreme pleasure, its holding! Not a drop of extra coolant found in the overflow bottle after this mild beating. This made my day for sure!

JD1964 · Jun 13, 2025

I’ve been pounding it some more over the past couple of days. It’s still holding.

I’m tinkering with AFR via Kirban regulator and FMU disc kit. We’ll see if I can get it decent enough. It’s a lean just entering boost (13.5) and pretty fat at 5psi (10). A bump in the static pressure seemed to make is a bit richer going in. I’m now going to fiddle with discs in the FMU to see if I can lean it out a bit at the top end.

I know a tune would be better and I have everything to DIY tune. I’m just not read to teach myself all that just yet. I’ll get to it eventually

JD1964 · Jun 13, 2025

…….oh yeah just in case anyone is wondering I’m currently running stock A9L with base timing set at 8 degrees spout removed

General karthief · Jun 13, 2025

JD1964 said:
I’ve been pounding it some

Really?
bucking for a new CT?

Noobz347 · Jun 13, 2025

He's trying to get a CT paragraph.

JD1964 · Jun 13, 2025

Excuse me for being dumb but what do you mean by CT?

Noobz347 · Jun 13, 2025

<<< Custom Title

Only the cool people get them

Noobz347 · Jun 13, 2025

I like the ones that have meanings that can be taken a number of ways.

JD1964 said:
I’ve been pounding it some more over the past couple of days.

Is a pretty good one.

JD1964 · Jun 13, 2025

Noobz347 said:
I like the ones that have meanings that can be taken a number of ways.

Is a pretty good one.

Its in the hands of the CT Gods

Noobz347 · Jun 13, 2025

The sneaky bastards

JD1964 · Jul 16, 2025

I finally got the fuel dialed in with a 6:1 disc in the FMU. At the beginning of boost its 12.7 and gradually increases to 11.4 at 5psi. Thats the pulleys I'm running now. I’ll roll with this for a while. I’m happy with it.

Fuel Bad regulator diaphragm?

JD1964

there is enough sticking out to grab on to

JD1964

there is enough sticking out to grab on to

Ask The Experts - Head Gaskets - PerformanceRacing.com

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

JD1964

there is enough sticking out to grab on to

JD1964

there is enough sticking out to grab on to

JD1964

there is enough sticking out to grab on to

JD1964

there is enough sticking out to grab on to

JD1964

there is enough sticking out to grab on to

JD1964

there is enough sticking out to grab on to

General karthief

wonder how much it would cost to ship you a pair

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

JD1964

there is enough sticking out to grab on to

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

JD1964

there is enough sticking out to grab on to

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

JD1964

there is enough sticking out to grab on to

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Fuel Bad regulator diaphragm?

there is enough sticking out to grab on to

there is enough sticking out to grab on to

Stangnet Facilities Maint Tech... Er... Janitor

there is enough sticking out to grab on to

there is enough sticking out to grab on to

there is enough sticking out to grab on to

there is enough sticking out to grab on to

there is enough sticking out to grab on to

there is enough sticking out to grab on to

wonder how much it would cost to ship you a pair

Stangnet Facilities Maint Tech... Er... Janitor

there is enough sticking out to grab on to

Stangnet Facilities Maint Tech... Er... Janitor

Stangnet Facilities Maint Tech... Er... Janitor

there is enough sticking out to grab on to

Stangnet Facilities Maint Tech... Er... Janitor

there is enough sticking out to grab on to

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