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Search: Posts Made By: MWhitney
Showing results 1 to 14 of 14
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Forum: General Q & A
12-10-2023, 04:12 PM
Replies: 0
Views: 494
Posted By MWhitney

Camshaft Identification 500EFI

Going through both my 500EFIs currently, refreshing both.

Noticed that the camshaft part numbers do not match. Port engine PN: R323029 (I cannot find any info on this anywhere, there is also...
Forum: General Q & A
07-14-2023, 10:44 AM
Replies: 28
Views: 3,744
Posted By MWhitney

wouldn’t you theoretically want to go to a heat...

wouldn’t you theoretically want to go to a heat range hotter if plugs are already fouling? Going down a heat range, on paper, would be worse?
Forum: General Q & A
07-10-2023, 12:01 PM
Replies: 28
Views: 3,744
Posted By MWhitney

Snap on timing light I do also have the...

Snap on timing light

I do also have the Techmate tool.

I will re time them to 8 degrees.

do I need to do anything in the computer to tell it that I’ve reset timing? I see there’s a base...
Forum: General Q & A
07-10-2023, 01:48 AM
Replies: 28
Views: 3,744
Posted By MWhitney

Seattle area. would you recommend scaling...

Seattle area.

would you recommend scaling back to 8 degrees?
Forum: General Q & A
07-08-2023, 08:54 PM
Replies: 28
Views: 3,744
Posted By MWhitney

They are heat range 8. If this is the way...

They are heat range 8.

If this is the way theyre supposed to run, id like to find someone who can better tune these MEFI3 ECMs.

Id rather have it run clean and maybe add a wideband to monitor...
Forum: General Q & A
07-08-2023, 06:27 PM
Replies: 28
Views: 3,744
Posted By MWhitney

Was it fat enough to load up the engines after...

Was it fat enough to load up the engines after idling a while?

NGK3249, Teague recommended this plug with the setup.
Forum: General Q & A
07-08-2023, 11:17 AM
Replies: 28
Views: 3,744
Posted By MWhitney

Narrowed it down further. After idling for a...

Narrowed it down further. After idling for a while (20 ish minutes in gear), both motors started to load up and kind of surge. I put both in neutral and revved them to about 4k, held it there till...
Forum: General Q & A
07-08-2023, 11:13 AM
Replies: 28
Views: 3,744
Posted By MWhitney

MEFI3. Im going to assume its stock whipple...

MEFI3.

Im going to assume its stock whipple tuning.

Do they tune it super rich out of the box?
Forum: General Q & A
07-06-2023, 02:17 PM
Replies: 28
Views: 3,744
Posted By MWhitney

UPDATE: Replaced IAC valve and engine idles...

UPDATE:

Replaced IAC valve and engine idles a lot better. Out of gear, count is around 0-10. In gear it shoots up to 140, but stays there and doesnt surge. Im assuming there may be some idle...
Forum: General Q & A
07-06-2023, 02:16 PM
Replies: 28
Views: 3,744
Posted By MWhitney

New recent issue. I purchased the boat with the...

New recent issue. I purchased the boat with the blower kits already installed. I am just going through the boat and solving lots of small problems.

Severe lack of maintenance previously
Forum: General Q & A
07-03-2023, 12:48 PM
Replies: 28
Views: 3,744
Posted By MWhitney

No, Injectors were tested before I replaced the...

No, Injectors were tested before I replaced the diaphragm in the regulator.
Forum: General Q & A
07-03-2023, 12:17 PM
Replies: 28
Views: 3,744
Posted By MWhitney

This is true. The way this system is designed if...

This is true. The way this system is designed if the IAC is stuck closed, the injectors spray right at the inlet inside the blower for the IAC rremote hose, and would fill the hose wih gas.

I...
Forum: General Q & A
07-02-2023, 04:55 PM
Replies: 28
Views: 3,744
Posted By MWhitney

I should have mentioned, I just had the injectors...

I should have mentioned, I just had the injectors tested and inspected. All passed. This was my first suspicion.
Forum: General Q & A
07-02-2023, 03:22 PM
Replies: 28
Views: 3,744
Posted By MWhitney

Exclamation 500EFI Whipple rich running condition

500 EFI with Whipple stage 2 blower kits.

Engine stumbles under light acceleration, around 1000-2200RPM, black smoke, smells like raw fuel. Proceed beyond 2200RPM, all is well and engine runs...
Showing results 1 to 14 of 14


 
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