Inline 6 165HP intake port lumps. Anyone install these........?

[Fordiesel69]

On youtube, a guy demonstrates installing lumps in the cylinder head intake ports. Do these offer any benefit on a mercruiser inline 6 if everything else is kept stock?

 

[Bondo]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

On youtube, a guy demonstrates installing lumps in the cylinder head intake ports. Do these offer any benefit on a mercruiser inline 6 if everything else is kept stock?

Ayuh,.... Sounds like B/S to me...

 

[Pikey23]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

I watched the video. It seems like it is a lot of work and it could be very easy to destroy your head on the process. If you are concerned about air flow why not polish your head, maybe do a 3 angle valve job.

 

[Fordiesel69]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

Just curious more than anything. If I fix the floor & stringers this winter, I would like to pull the engine next year and modd it to the max possible, not that there is much to mod on the L6.......

 

[Bondo]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

I would like to pull the engine next year and modd it to the max possible, not that there is much to mod on the L6.......

Ayuh,... Replace it with a 350...

 

[Fordiesel69]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

Definatly not....... Just looking for little things to improve the 6.

If this modd works for stock stuff, that would be great, but I bet this is if you have a cam & high performance carb..

 

[ziggy]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

i'm under the impression there's not much, like nothing, to do to a mercruiser 165hp L6 for performance mods. so i don't even look any more. they are what they are, a good, no, great, working engine for a boat.

 

[Fishermark]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

More for curiosity than anything I did a quick search to see what you were talking about. Here's the link to see it. I doubt seriously you would see any difference in performance at all. BUT - having said that, I haven't tried it.

 

[Fordiesel69]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

See below. I can see the difference in number on the dyno test, but in real world performance gains, I cant; see how these are with the $65 + the ungodly amount of time to install. If turboing a street vehicle, then maybe......


T6 Racing sample flow numbers

Sample head; All flow testing was done on same head, same port on same flow bench by same technician. 194 head 1.940 Intake valve 1.600 Exhaust valve. Numbers are for comparison of lump build changes made not to measure any type of flow boasting rights. This is just an average head with average head flow numbers.

Intake Lift port with T6G2 lump with head bolt in proper mounted position

.000 .0

.100 64.0

.200 133.6

.300 179.4

.400 218.0

.500 238.1

.600 251.1

.700 255.6

.800 256.8



Intake Lift port with bolt covered up not present in flow path to split and direct

.000 .0

.100 63.6

.200 130.1

.300 176.6

.400 217.2

.500 233.7

.600 243.8

.700 247.3

.800 248.7

 

[dan t.]

Re: Inline 6 165HP intake port lumps. Anyone install these........?

Looks like a huge amount of work for not too much gain, a simple port match and bowl blending would probably gain you just as much with 1/2 the work.