Pistons are here! MS big bore.

[Sledder]

Last night I yanked the engine and tore it all apart so I could take the cyl heads to get the porting done . Today,the stars ligned up and the pistons arrived from Thunder.

When talking to the guys at thunder ,I asked about cc's and the person I was talking to didn't know the cc's it would make a 1600 for sure. I did see something on their site about 103mm,so that is what I was expecting. That was fine ,I was more interested in compression anyways. (the stock bore is 102mm).

I just opened the box and measured em....104.7 at the skirt. TOO cool.

a quick calculation:
Radius squared X 3.14 X stroke X no of cyls

105divided by 2=52.5mm X52.5 ..X 3.14 X 95 X2 = 1644 cc...Awsome
1644.X .061 = 100.2 cu inches...

..if done using 104.8 mm bore(more accurate bore size)..probably 99.something

A 100 inch engine with proper porting and some compression...cant wait.

If these stars stay lined up like this,I'll be riding her Monday/Tues nite.(lol,of course that would require me to remember how all these gazillion connectors,hydralic clutch stuff,fuel lines and wires go,..which I hope wont confuse my simple mind too much.)

[ispeed77]

dude, that is sweet ! i can't wait to hear the progress. i might have to take a ride up there just to see how quick that thing pulls away from me !

[Sledder]

Yeah,hope it works out well. You can't be that far away in Ma?. ..I think about 9-10 hrs. Any time .

[ispeed77]

Originally Posted by Sledder

Yeah,hope it works out well. You can't be that far away in Ma?. ..I think about 9-10 hrs. Any time .

yeah, i would say about that. i go up to Calais, ME a coupe times a year and its about 6 hours. there is a good chance i will be up there in October, so maybe i can make the trek over to you then. we shall see how my summer plays out.

[Spok]

i've read about them big bore kits...i'd be inclined to go that route....

[ispeed77]

Originally Posted by spok

i've read about them big bore kits...i'd be inclined to go that route....

if i do get my FJR this summer and i am able to pick up an older Vulcan, i am hoping to go that route. at that point it will be all about power !

[ppark]

Originally Posted by Sledder

Last night I yanked the engine and tore it all apart so I could take the cyl heads to get the porting done . Today,the stars ligned up and the pistons arrived from Thunder.

When talking to the guys at thunder ,I asked about cc's and the person I was talking to didn't know the cc's it would make a 1600 for sure. I did see something on their site about 103mm,so that is what I was expecting. That was fine ,I was more interested in compression anyways. (the stock bore is 102mm).

I just opened the box and measured em....104.7 at the skirt. TOO cool.

a quick calculation:
Radius squared X 3.14 X stroke X no of cyls

105divided by 2=52.5mm X52.5 ..X 3.14 X 95 X2 = 1644 cc...Awsome
1644.X .061 = 100.2 cu inches...

..if done using 104.8 mm bore(more accurate bore size)..probably 99.something

A 100 inch engine with proper porting and some compression...cant wait.

If these stars stay lined up like this,I'll be riding her Monday/Tues nite.(lol,of course that would require me to remember how all these gazillion connectors,hydralic clutch stuff,fuel lines and wires go,..which I hope wont confuse my simple mind too much.)

This is great. I am anxiously waiting for the completion.

[trikebubble]

Can I get one next? Wow, waiting in anticipation of the end results.

[ppark]

Originally Posted by ispeed77

if i do get my FJR this summer and i am able to pick up an older Vulcan, i am hoping to go that route. at that point it will be all about power !

I was also interested in the sport-touring machine.
I am waiting for the new Kawasaki Sport-touring (ZZR1200 replacement) to come out towards the end of this year. A lot of speculation but nobody knows anything about it.

[Sledder]

I'm also curious what kawi's new touring bikes will be. Those fjr's are cool,as well as st1300's. Myself ,I'm thinking someday I want a pure touring,and my MS still in the garage stripped down with a hot paint job and chrome wheels.

[ispeed77]

i was thinking pure touring, but i don't really care for them. i looked at the sport-tourers before i bought the Nomad and i was all set to buy a BMW, but then i decided to stay with a cruiser. unfortunately, i love to corner and the Nomad is limited. the ST is a beautiful bike, but the FJR does it for me and is supposed to be the quickest of the sport-tourers. hopefully i will get to sit on one in about two weeks and as long as i am comfortable on it i will have one by the end of the summer, sooner if certain things pan out for me.....

[Bombayrider]

not to be nosey at all but could anyone tell me what kind of money these modifications will cost?

How about RWHP gains and torque

[Crue]

That's kewl sledder are you going to dyno it after you get it all set up? I'm curious to see what kind of performance your going to get outta the bike.

[Sledder]

check out (I'm not certain,as i did a search) but I think Thunder's website is www.thundermfg.com Thunder Manufacturing.

typically a stock 1600MS with pipes and air mods w/ fuel control make about 64-70 hp when dialed in,..with about 85-90 ft /lbs of torque , while this is a great improvement over stock, adding the thunder kit can take you(a lot of variation with level of porting and actual compression ratio adjustment)..to around 90 rwhp,and even bigger gains in torque.

stock MS is 1552 cc with very unfinnished cast cyl heads and low compression.

[Sledder]

Crue, ..yup,for sure I'll be dynoing. I have a few friends with dynos.I hope to get this thing together soon so little Dove doesn't think I'm nutso,lol.

She came in the garage the other nite when I just got it all apart. She said" Is that you new bike?" (it was in peices). WHYYYYY do you have to do this to everything?

.. "I have to slip in these new pistons for better fuel economy!"

.....ummm hmmmm(rolls her eyes.)


I beleive it IS a sickness of some kind,wonder what it is called.

This street bike was to get away from all that stuff,I originally had no intention of ever touching this one,...yup,it IS a sickness....I'm trying to refrain from painting it Dalton metallic orange(I already have lots of paint)...but hopefully the bore job and everything gets here in time so I won't have time to do it,as I want to get it together and ride.

[Phatboy]

Originally Posted by Sledder

.. "I have to slip in these new pistons for better fuel economy!"

.....ummm hmmmm(rolls her eyes.)

Fuel economy my as........*cough* I mean good answer bro.
I'd be interested to see what the MS will do when ya get-r-done.
There's a guy in Delphi forums with a big bore 02 meanie ruinning low 12's.

[Sledder]

what's delphi forums?

[Crue]

Originally Posted by Sledder

what's delphi forums?

Delphi Forums

Creole drag races one of his Meanie's and he has a big bore kit in it. He's an inspiration to many at the young age of 65 going out on the weekends and pulling low 12's.

[flynsouth]

Be really interested if you ran before/after dyno numbers, especially if you took it to the track and ran some 1/4's or timed laps for a comparison. I'm really interested to see the gains over the mod's you already made as they are very similar to mine.

[jnk]

sledder
thats great i can't wait to here how it does it should scream