Single or twins?

[Rick]

I am wanting to know if twin .45's will be as quick with a single .90 or somewhat close? It is going in a cat stlye hull. Would I need to counterrotate one of the motor's for a twin setup? Thanks Rick

 

[Chris Wood]

THERE IS MIXED OPINIONS ABOUT TWINS

THEY LOOK COOL, SOUND COOL AND ARE AWSOME TO DRIVE AND WATCH.. BUT AS FAR AS SPEED GOES THEY ARE NO FASTER THAN A SINGLE ENGINE...

ONE QUESTION YOU NEED TO ASK YOURSELF IS THIS.. DO I WANT TO SPEND ALL THE MONEY TO GET IT TO RUN

YOU ARE TALKING ALMOST DOUBLE THE PRICE FOR EVERYTHING....

THEY CAN BE A PAIN.. SETTING THE NEEDLES,, MAKEING SURE THE PROPS ARE THE SAME. PIPE LENGHTS THE SAME.. THEN THE MOTORS.. MAKING SURE TIMINGS ARE THE SAME..

HOW LONG HAVE YOU BEEN RACING??

IF YOU ARE FAIRLY NEW TO THIS I HIGHLY HIGHLY HIGHLY RECCOMMEND YOU STICK WITH THE SINGLE..

I HAVE BEEN RACING FOR FOR OVER 15YRS AND I STILL WOULDN'T WANT TO MESS WITH ONE...

THEY ARE FUN BUT ALOT OF WORK....

JUST TELL YOURSELF THIS IS SUPPOSED TO BE FUN REMEMBER..

LOL

GOOD LUCK

CHRIS ;D

 

[Twin_k90]

Twins really arnt that much work, yes you need two of everything, but the enjoyment you get from running them makes up for everything else,

my first rigger was a twin cmb 67 eagle, it taught me lots about running a rigger and setting everything up, i had been running monos for about 5 years before that,

i you have the time and money to put one together then do it,

i dont think you will get the speed of a 90 out of 2 45's our twins are not much quicker than a single just that 90% of x hydros down here are twins!!

Dale

 

[Rick]

This is just a play boat so speeds are not real important. I have never done up a twin for the same reasons you just mentioed but would like to try with this 48" hull. Do I have to counterrotate one of the motors or would be fine as is? Thanks

 

[TimD]

Rick,

You don't need to counter-rotate.

I think for a "fun boat" you are better off steering clear of a twin. Twice as much to go wrong.

Tim

 

[elafleur]

i have seen a twin 45 mono and hydro in my past years of racing . neither of these boats could compete with a single 90 in the same hull. the larger twinn 90 boats have an advantage over the single 90 boats because of their higher weight and the quicker corner speed .

 

[Ian Inverarity]

elafleur,

Do the twins in the US lap faster than the singles?

Ian

 

[EatMyShortsRacing]

Singles or twins.... hmmmmmm

Here I am having a single X Hydro and a twin on order (is it finished yet magilla??? LOL)..

Its taken me 14 years of boating to attempt one even though most of the guys in our club a while back went that way. Racing wise I am not sure the twins have the advantage over the singles in every condition so I think I will keep both so I can choose for each event.

I suppose the main reason I am going to a twin is more for me to play with at first because I already have an X hydro. If I didnt have one I would build the single first.

EMS Racing Twice the fun, four times the headaches

 

[Ian Inverarity]

Craig,

How come your not doing a Stinger twin? ;D

Having just built an expensive single I don't really feel like building a twin yet. I think if a twin gets the start the single would be hard pressed to go round it. If several twins are racing together then I am not even going to try! But even now the twins are more unreliable and the singles can sneak thru for a win! 8)

Of course I have that other Twin Beater to run if I ever get it sorted out..... ;D It is almost as big and heavy as a twin!

Ian.

 

[EatMyShortsRacing]

Well there is a Stinger twin in the designs but for now it can stay where it is. Remember there are a lot of hydro builders in Australia and I am not going to take them all on in every class. Magilla seems to have a nice twin boat happening and I suppose the single 90 and twin 90 are pretty similar boats in a lot of ways.

I would say that if Stingers come back it will be 21, 45 and maybe 67..

 

[Ian Inverarity]

Craig,

Make mine a 45..... 8)

Ian.

 

[topfuel443]

I just saw Ernies twin run at valdosta this weekend with alot of other very mentionable names racing with him in a full field of twins (8). I would have to agree while the straight away speed is not much different than a single, the big twins do seem to corner much faster because of the wieght and size to hold them on the water, not to mention twice the torque of a single. It seems as though it would be harder to pass a twin if you run a single if for no other reason than the massive roostertails they throw!! I beleive Ernies twin mills at slow speeds equally as well as it does laps at full throttle (it probably mills better than my 20 boats do!) It would definately help to know how to properly tune an engine in order to be consistant with a twin. If I could just get Ernie to donate me the two MAC 84's he won at valdosta I would love to build a twin........

congratulations on an impressive weekend Ernie.

~ James

 

[Twin_k90]

Well there is a Stinger twin in the designs but for now it can stay where it is. Remember there are a lot of hydro builders in Australia and I am not going to take them all on in every class. Magilla seems to have a nice twin boat happening and I suppose the single 90 and twin 90 are pretty similar boats in a lot of ways.

I would say that if Stingers come back it will be 21, 45 and maybe 67..

Hehehe thanks Craig,

i started on the first lot of sponsons tonight, made a few mestakes so had to pull all the gel out of the mould, i have decieded that all the sponsons will be clear resin then you can decied if you want the ultra sexy carbon/kevlar look or paint them, ill make a set and if they come out good they will be yours ;D ;D ;D ;D ;D

 

[Ron Zaker Jr]

I truly believe that a really good single cannot run with a "good" twin.To me the biggest reason are the water conditions.After a lap or two (in a heat that has multiple twins)the twins just stirr the water up soooo much that the single has to be so careful,the focus of winning turns into just finishing.Nothing against the racers with the single's,there are many very fast F boats across the country.My 2 cents.

Ron Jr

 

[MikeP]

Dale,

I would really like to see your mold and the sponsons when you get them done.

-MikeP

 

[Twin_k90]

Hey Mike,

Ill get some pics of the process as i go, ill be starting again tonight and will finish on the weekend, i have to get some different hardner for the west systems, im running out of slow hardner!,

Dale

 

[Ian Inverarity]

>I truly believe that a really good single cannot run with a "good" twin.To me the biggest reason are the water conditions.After a lap or two (in a heat that has multiple twins)the twins just stirr the water up soooo much that the single has to be so careful,the focus of winning turns into just finishing.Nothing against the racers with the single's,there are many very fast F boats across the country.My 2 cents.

Ron Jr

I tend to agree with Ron Jr, But I hope to be around with my single to pick up the pieces! I still think a good single is ultimately faster, but the water conditions made by the twins means the speed cannot be used!

Ian.

 

[EatMyShortsRacing]

Dale,

I think the twin will end up in the usual Eat My Shorts Racing colours..

With the Stinger boats I want to look at doing the tubs in composites so that would mean lots of work for each model. I think the 45 and geared 21 hydros will be my first Stingers back if I go ahead. I think we also have to be realistic about where we live and what market there is for boats here. The US doesnt buy Australian boats much so we have a very small market. Too many boats in too many classes and it becomes worthwhile for nobody!!!

All in all I think the Stingers and the Avenger/Spider boats were the best all round hydros that have ever run in Australia. Pity I didnt have a Stinger 45 at the Nats because thats the only boat I think could have got around in the rough!!!

 

[TimD]

I too agree with Ron Jr.

After 2 minutes of running with 4 or more twins on the water it becomes "surf city". The biggest thing the singles have going for them is reliability but I think a lot of the singles still running are not trimmed well for the rougher water.

One thing is for sure - 67 hydro has become a lot more popular since twins have been on the scene.

 

[Ian Inverarity]

Talking of 67 hydros, that raises an interesting point. Why do 67 hydros lap faster than the 90 hydros? The power of the modern 90's is outstanding and the boats are only a little bit bigger and heavier, but the 67 boats seem to get the fastest heat times. :

I would think 45's would have an edge on the 67's for power/weight ratio.

Ian.