What's been done to this Promax??

**FORBESAUTO** · 02-13-2020, 11:44 PM

Originally Posted by roadkill636

Somebody been doing some port cutting too. But why this extra tit in the exhaust?

Welp, tha cats out tha bag. Ya gotz ta have one of dem flow benches to see the benefits. Naw I’s jus joken

. No idea why, I’m thinking jus exceeded the ability of the tools used in portin’ that didnt allow him to cut that little part

, but who knows

**roadkill636** · 02-19-2020, 01:31 PM

Got the results

**Erine** · 02-19-2020, 04:02 PM

Might have someone who does port work look at that picture. Looks rough and no chamfer.

**Merc 2.5** · 02-19-2020, 05:40 PM

I think either sumone didnt have the rite "tools" to get all way across or is sumthin they have practiced with and think the porting works? Prob never know , would like to c little more chamfer but merc factory puts out small chamfer also

**roadkill636** · 02-20-2020, 06:08 PM

Each bag is numbered. Is this the injector number? Or cyl number? I'm thinking BAG #1 goes into CYLINDER #5

**FORBESAUTO** · 02-20-2020, 06:14 PM

They’re the cylinder numbers he suggest them to go in

**roadkill636** · 02-20-2020, 06:29 PM

Originally Posted by FORBESAUTO

They’re the cylinder numbers he suggest them to go in

Then what is INJECTOR NUMBER on the far left of the page?

**FORBESAUTO** · 02-20-2020, 08:05 PM

At least each time he’s done them for me, his system is the numbers on left are the numbers he assigned or cust assigned (I number them before I send them) before testing. Numbers on bag are where they need to go after cleaning. This especially seems accurate being he replaced a few of yours. Look on the plastic part of the body, he etches the number in the body also that you can compare tIf in doubt call Rich, he will be more than happy to assist you.

**roadkill636** · 02-21-2020, 03:06 PM

Called Rich... he confirmed that the INJECTOR NUMBER on the bag. Is what I marked them when I sent them to him.. the hand written ink is the CYLINDER recomended they be put in.

**FORBESAUTO** · 02-22-2020, 12:04 PM

Well dang, now I’m wondering if I’ve been doing it wrong

. I could swear my etched numbers didn’t match what was on bag but matched before numbers. Maybe I’m just falling off the deep end

**roadkill636** · 02-22-2020, 01:46 PM

The etched numbers are what I wrote on each injector... and after cleaning them and flowing them he wrote IN INK what CYLINDER each injector should be put in according to its flow.

**roadkill636** · 03-01-2020, 10:55 PM

Got rid of that heavy 13# cast iron flywheel today.

**roadkill636** · 03-02-2020, 08:11 PM

Originally Posted by racervboat

What pressure were you running? needs to be 39 psi.

Just put a tire guage on the fuel NOT running and it was 39.5.

How much can it drop when ideling?

**roadkill636** · 03-13-2020, 07:43 AM

So the fuel pressure drops to 37# when running on the hose. Should I raise it back up to 39 when running? Rich said that with the mods on this motor and these injectors that he would like to see it at 39 but I cant remember if that is running or just key ON pressure...