Does anyone have an install manual for a 2300 top mount whipple on a 500 efi? This is the whipple that has the 2 injectors on the side of the blower. Have most of it installed but hung up at a couple of spots and want everything to be right. If anyone has one, it would be greatly appreciated. Dustin, can you help at all? thanks in advance!!!

Just call him he is great to work with. he always takes his time to help me.

Someone tried calling him 2 weeks ago about it and last that I knew, he never got back. I am sure he is busy or forgot and that is why I was wondering if anyone has the instructions? I know he is usually on here a lot and helps a lot of people on here so hopefully he will see this if someone else isn't able to help! thanks

keep trying. I just talked to him about a hour ago and ordered some stuff from him.

Send me an email address I can have it for you in the morning.

You can also try dennis at whipple, he emailed some instructions to me

Quick, simple question...Mine has the 2 injectors off the side of the blower and and 6 on the rail. Should the fuel line go to the 6 and then a jumper line from the rail to the 2 on the blower? This appears to be the way it goes, just want to be sure. Racer277 sent me the install PDF (thanks), but it doesn't show it having the 2 injectors off the side like mine...Why is that or why are they there? thanks

Bad,
Call Whipple direct on this. What I sent is an old (original) install document. Dustin has a revised plumbing plan for the injectors since then (if I remember correctly). I believe that he doesn't dead head the fuel line any longer, and may have other input as well.
Talk to him directly if possible, as he knows many tips/tricks regarding this.

But, to answer your question directly, yes it goest thru the lower injectors first, then loops up to the 2 side injectors.

I will try calling him again...I can't seem to get through.

Can anyone tell me why on my top mount 500efi 2300ax I have 2 injectors on the side and 6 on the rail? All the other ones that I have seen have all 8 on the rail.

I have a 99 OL 502 w/whipple side mount, still has the piggy back computer and secondary fuel pump. Everything is stock other than 8:1 pistons and MLS head gaskets. I blew a head gasket last summer, pulled engine and rebuilt her this winter. As of now the injectors aren't pulsing, wont start. Engine check light is on, whipple check light is showing code 15 (I think). I have went over grounds and all connections, everything is good to go. I am thinking of buying a Mercrusier scanner or PC software to read/delete the codes, and run an injector test. I need the tool anyways.

Will the scanner allow me to read/delete the code on the piggy back computer?
Is this the next step, or am I just missing a simple ground or a bad connection?

Or should I ditch the piggyback computer and 2 injectors pre-SC, and get my MEFI 3 re-tuned and go with bigger injectors?

Any help would be appreciated and if anyone has a pdf of the instruction booklet, that would be awesome! I bought the boat 5yrs ago, 1 owner w/160hrs on it, SC was installed @25hrs. It now has 250hrs on it, I replaced the SC 2 summers ago. The boat always ran great, GPS 74mph. I know my way around an engine, but this is the first SC and MPI I have ever rebuilt. I'm not trying to push things to the limit, just want what I had, 74 is good for me.


Thanks,