Need ideas for a light,short mid for a v4 crossflow

**ChrisCarsonMarine** · 10-15-2016, 02:31 PM

Slightly modded v4 going on a light allison,was going to use a standard clamp/trim and a 16 taylor mid...weighs about what the powerhead does.Anyone have anything or a good plan for a lighter setup,needs trim but not tilt...thanks,Chris

**loop** · 10-15-2016, 03:10 PM

Chaz could fab something really nice

**loop** · 10-15-2016, 03:12 PM

Im building this for mine
not proud of it but it'll do what i want
short and light enough. about $50 in mostly scrap metal

**ChrisCarsonMarine** · 10-29-2016, 10:51 AM

???????

**olboatman** · 10-29-2016, 01:58 PM

Originally Posted by loop

Im building this for mine
not proud of it but it'll do what i want
short and light enough. about $50 in mostly scrap metal

Great start! Are you going to use an exhaust snout out the back or a tuner to the LU? Trim ran inside jack/set back plates? Sorry about hi jack Chris

....just had to ask!

Gary

**BarryStrawn** · 10-29-2016, 02:21 PM

I don't think there are any easy solutions. But I recall there were some Mercury 12" midsections used under V4 crossflows in the old APBA Formula-V back when engine mods were more or less unrestricted. Believe they just milled a new exhaust adapter from solid that bolts to the powerhead but has the Mercury bolt pattern on the bottom side. Then either use a Merc SSM or adapt a shiftable using the normal methods.

Back in the day, we shortened my Allison 16 V4 mid by 7.5". I plan to rebuild it over this winter and re-fabricating all the transom and swivel parts. This is a lot of work. I don't know of anyone doing this commercially.

**H2OPERF** · 10-29-2016, 03:47 PM

Like was said above no real easy/cheap/light way out. A cut down omc mid isn't that heavy,make a sheet metal/angle mount bracket/jack plate with a trim cyl and a pump in the boat. For a v4 you could probably go with 3/8 instead of 1/2 on most of the pieces or do some custom milling lighten it up a bit, that will get rid of the heavy oem mount brackets and a big heavy jack plate made for a v6. Dave

**flabum1017** · 10-29-2016, 07:18 PM

Break out the hole saw......

**loop** · 10-31-2016, 12:50 PM

Originally Posted by olboatman

Great start! Are you going to use an exhaust snout out the back or a tuner to the LU? Trim ran inside jack/set back plates? Sorry about hi jack Chris

....just had to ask!

Gary

Thanks
yes the tuner will go out the rear not thru the LU. Trim cyl is inside the set back plates. Didn't want to go thru the transom if I could avoid it but I'll do it if necessary to make it run and handle right

**racervboat** · 11-01-2016, 11:55 AM

I make mine using a 5-6 inch set back 2 piece jack plate with a merc 70s-80s trim ram with home made brackets for swivel bracket and transom to mount the ram and the pump in boat.Works great and raced it in formula-v mod for 4 yrs with out one single issue,but the draw back is trim only no tilt but was not an issue for me.

**racervboat** · 11-01-2016, 12:01 PM

If I come across a donor crossflow mid this winter I thinking of doing a 12 inch just for something to do {long winter in mn} even with my 15 inch I was still 3 inches above transom on my 15 ft pacecraft and 16 ft allison

**racervboat** · 11-01-2016, 12:06 PM

pic of allison

**racervboat** · 11-01-2016, 12:10 PM

was in process rigging it note missing steering arms.ran it @ 85mph gps handled great and trim worked flawlessly.

**racervboat** · 11-01-2016, 12:14 PM

kinda hard to see the motor height.

**ChrisCarsonMarine** · 11-01-2016, 02:37 PM

Originally Posted by racervboat

I make mine using a 5-6 inch set back 2 piece jack plate with a merc 70s-80s trim ram with home made brackets for swivel bracket and transom to mount the ram and the pump in boat.Works great and raced it in formula-v mod for 4 yrs with out one single issue,but the draw back is trim only no tilt but was not an issue for me.

Nice,any chance to get some close-ups,that would work fine for our project,Chris