Vortech V4 Supercharger set-up on a GenXI 502
 

So...I have a new to me Vortech V4 supercharger w/intercooler and looking for some setup guidelines, advice, or even feedback if this is a bad idea all together, lol.

The motor is a fairly fresh Gen VI 502 with forged internals, 9.6:1 scr,,ZZ502GM cam, fresh valve job on the Edelbrock oval port performer heads and manifold using Fel-Pro gaskets and ARP head bolts, CMI headers, DUI distributor, and ambitions of a closed loop FI in the near future.

First and foremost, if adding this supercharger sounds like a bad idea let me know now as I'd really just like a fun summer of boating this year, and it's going in a Baja272 Islander.

Second, I guess, would be power expectations so I can size the correct FI system. I'm guessing about 650? Theoretically the engine should be at about 500hp NA now. I know that it's a tired old question, but here I am.

Timing? Lock out the distributor? Set about 32*?

Thanks in advance!

And yes XI in the title just because I'm that far ahead of my time. ;)

OK - the first problem, it looks like the charger oil dump needs to be tapped in to the oil pan. That's not going to happen. :I

Do a search also while waiting for others. I know I've seen several threads on forum who did the same

My oil pans had a plug in the side that I had to take out and used for my drain

You can also drain it in the valve cover

Is thare any reason to not tee it in to the line line pre filter in case of bearing failure in the blower or do the pressures combat each other?

Are you talking about the feed or drain line ?

The charger drain line , when I was researching these a couple years ago that seemed to be a concern of some that if it pukes the innerds end up in the pan.

I saw that on some generic PDF's. I was hoping that it was doable in this case.

I would have to say if it went into the pan and made it through pump then it would be trapped in the filter

I think all you have to do is change the location of the drain on the V4 to 5 o'clock location

I get what you are trying to say , but the only thing the oil is doing is cooling and oiling the bearing and if they are coming apart you are going to have more problems than trash in your oil plus the drain line is not that big so the trash will be small

some marine pans have a plug in the pan on #1 cyl side, mine does, what are you using now EFI or carb, EFI with blower going to be tricky at best with the merc, not saying can't be done.

Yup, I was psyched way back when when installing an ATI SC in boat with a 502MPI when I noticed the plug, which I of course used as a drain for the SC.

Doing very quick research, looks like Merc #845668T (one piece rear main) has it.
Also appears an aftmk't copy has it too: http://www.michiganmotorz.com/74l-82...an-p-4052.html
Click pic, then click that to go thru the photos and you'll see the plug too.

http://i.ebayimg.com/00/s/NDgwWDY0MA...VVP0K/$_35.JPG

That would be sweet! I'll take a look at it later today.

This is the EFI that I was looking at. It's already set up for a blow-through situation.

http://fitechefi.com/default.asp.pg-...m8-InjectorKit

Using my Holley 130gph with 1/2" line from the tank to feed the fuel command center
http://fitechefi.com/default.asp.pg-...lCommandCenter

No luck on the oil pan. It'll have to dump into the valve cover.

I have a v4 on a 500efi. the earlier manuals said into the pan with an option to go into the valve cover. the later versions only say into valve cover. The 502 vortech manual I have says into the pan as option 1 and then valve cover. Same as the old 500efi manual. I think they found that the oil backed up in the hose when attached to the pan, so the later manuals are into the valve cover only. I did mine into the pan and I was getting some residue into the blower horn. I am going to change to into the valve cover.
larry

Started getting things jigged up, and the unit is cramping the water filler neck. How is this situation normally resolved?

http://i622.photobucket.com/albums/t...36EA87236A.jpg

you fix it with another water neck.
http://i296.photobucket.com/albums/m...ps188e455c.jpg

Sano.

It looks like you went with a crossover instead of the water pump?

yes no water pump.

My pumps are gone also [IMG]http://i882.photobucket.com/albums/a...pspxxkzavn.jpg[/IMG]

Clean. Thanks for making me hate my boat, lol.

With the crossovers did you tap into the back with pressure valves dumping the excess overboard? I run in some 50-60* water and worry about getting too cold with the cross overs.

I'm also curious what size oil coolers you guys are running with those Vortech motors. I currently have a 2x18" cooler with 3/4" lines. I'm thinking that I may need to go bigger.

I had pressure relief valves on it before I put the crossovers on and saw no difference in the pressure on the gauges ,I still run a thermostat in the intake ,my oil coolers are 3x20 and have a thermostatic by-pass in them,

Any reason not to tap into the filter head instead of back by the pressure sensor per the generic instructions?http://i622.photobucket.com/albums/t...83450F7DD1.jpg

I don't see why you can't just make sure you are on the clean side of the filter