is the rubber 4 petal reeds and block better then 5 petal boyseen reeds?

[camaro7081]

this is for the 2.5 mercury 200 ,if the 4 petal is beter what is a good price on used ones ??????

[T-REX]

I flowed the 5 peddles and the 4 peddles on a flow bench to see what wuz what...My findings wuz that the 4 peddle caged flow more than the stock 5 peddle cages, but modified(like HP Merc cages) flow the same az 4 peddle's...Bottom line iz the 4 peddles are CAPIBLE ov flow'in more than stock 5 peddles, but in a stock 200, the stock 5 peddles may be the better choice for river runn'in....Juss my unprofessional opinion!!

[SlimDaddy]

Yea the 4's flow better than the 5's but you'll probably never turn it high enough to see the benefits of the 4's. From what I've seen the 5's are a little better on the low end also. Just my .02.

[Steven]

i tried them on my stock 200 2.5, couldnt tell any difference from the steel 5 petals...my opinion only

[The Big Al]

The facts!

Not opinion or speculation.

http://forums.screamandfly.com/forum...ighlight=reeds

[The Big Al]

Ok Test of 4 pedal! And Man! It's a differant game!
<HR style="COLOR: #72a5d8" SIZE=1><!-- / icon and title --><!-- message -->This test is for Horizontal 5 pedal std front half black fishing engines! And the sport jet 4 pedal reeds that can replace them.


I will say, out of the 5 pedal sets, the SST are the fastest by 2 hundred rpm, but, they make the engine act funny, when you let off the throttle the engine act loose, midrange is never the same, idle is erratic. Stock reeds are very consistent, my Boyesen 2 stage seem to be the best very good idol, very strong midrange, cutback throttle engine comes down very predictable.

Bullet 20xd, 200 EFI, 1 inch spacer, Aeromotive regulator, 38 psi, SVS, Brucato ECU, 200 x CURV, MOD VP tuner, bucket out, heads CC to 35 cc, compression 138 all ci.
Sportmaster, 1.87, 27p Tempest Plus

1.stk steel reeds good idol, fair midrange, max rpm 5900
2.SST 5 pedal reeds erratic idol, strong midrange, 6400 rpm
Engine is also erratic when throttle is cut back
3. Boyesen 2 stage Boyesen 5 pedal (5 years old)
Good idol, Strong Midrange, 6200 rpm

Note, the 6400 rpm is the best my engine has pulled loaded so for.


Now 1-1-06 4 pedal day!!! Temp 58-61 degrees
boat the same, prop the same, fuel the same.

1st, had a little problem yesterday, have plastic spacer, have been changing reeds, looks like the spacer can not take a lot of changes without distortion. When engine got warm the reed cages came apart. So be carefull installing the 4 pedal cages.
The "rubber cages' are not rubber, they are very thin pot metal frames that or plastic formed, it's not rubber. It's Plastic! The metal you see is all the metal there is, the rest is plastic formed.

Now with test.

Only 2 reeds to try, did not try stock steel.
Have Boysene 2 stage and Steve's new style carbon fiber.

Absolute no differance! NONE! Between the 2!
Now, I have seen the Boysene decay, as a matter of fact the reeds I recieved were used. They had bad spots, so I mailed them to Boysene they did make them good.

Idal quality!!! Second to none!!! Absolute great!

Midrange! You feel it and it's smooth!

Top end!!!!!

6500 rpm, Engine made waist of my prop.

Very best yet!!!!!

Also, with my Adjustable ECU before with the other reeds (5 pedal)I ran the engine a little on the lean adjustment with the program in my unit.
No more!! Engine wanted +3%
So we know the engine was getting more air, so the more power!

If I adjusted back to old setting EGT's would got up fast, scary fast!

So, if you want bolt on performance! And you have standard 5 pedal reed cages, get them out! Change them to 4 pedal it's a no brainer!

We need to thank Steve on this site for giving me all the reeds to test. It's been fun, and it's been work. But I like it.

Al

[camaro7081]

i should have mentioned that i am going for the most performance i can get out of this 1996 2.5 .200 . it is mounted on a bridgeport offshore mid and a one piece exhaust adaptor ,lightwieght cowl so i have the mid section covered . i just bought the 4 petal blocks ($36 bucks for all six plus shipping)with black factory reeds and the metal stops . should i use the stock reeds ?? or change the reeds to the above mentioned (by big al),and if i change the reeds should the stops be used? can and should the manifold be cross drilled ?

[The Big Al]

Boyesen reeds will come with stops.

The carbon fiber will use the factory stops.

They look like they will stop the travel on the reed but it does not.

Also I fixing to test a new 3 pedal carbon fiber reed with modified 4 pedal cages.

They look good.

AL

[camaro7081]

i just looked close at the picture of the reed block assemblys they have the metal reeds so i will be buying boyseen reeds for the 4 petal blocks . i wonder if a should by some more of the blocks for spares or maybee 6 more incase i need them for another project , do they work for 2.4 also ????

[The Big Al]

i just looked close at the picture of the reed block assemblys they have the metal reeds so i will be buying boyseen reeds for the 4 petal blocks . i wonder if a should by some more of the blocks for spares or maybee 6 more incase i need them for another project , do they work for 2.4 also ????

2.0, 2.4 a;so yes

[The Big Al]

Pic's of these babys!

[camaro7081]

looks like your 3 pedal will flow even more then the 4 . will the spacer work on carb motor ?????? and should i cross drill the intake ???? i looked at your other posts about the reeds testing and saw the boyseen reed fell apart at the tip . were can i buy the carbon fiber reeds from and how much ??????

[The Big Al]

Steve, thats his S&F member name
MERCURYRACING@insightbb.com

SST has the spacer and can help you with the intake.
marinerracing@aol.com

[camaro7081]

thanks for the info , the reeds testing was a lot of work. i enjoy making changes to the engine and then checking the work with a good gps run . i would like to put my 2.5 on the boat and take the 2.4 off to see if i get any more speed out of the boat . and after i get the speed recording from the 2.5 ,i want to start working on it !!!!!! , i may even go for pistons and porting and the intake off coarse . then test it after the winter thanks again for info . i will be asking a lot of questions,and s&f guys have helped me a lot . one question i have is were should i send the block if i decide to have the cylinder bored and the exhaust ported ????? what pistons to use

[TheRickster]

You might check to be sure but your motor being a 1996 model might already have the 4 petal rubberized reeds with the steel petals in it already....

Rick