1428cc in stock block!!!!

[Anonymous]

Hi
im new to this forum. My name is Jeram mallis im 16 years old and currently live in Australia.

Last week after months of dreaming i finaly upgraded my bike to a suzuki gs(x) 1150 efe.

I am woundering because of my dragracing origins and my need to muck around with a bikes performance. i have heard from many guru's with too much time on their hands, that a set of Yamaha Virago 750 pistons and sleaves can be put into a stock block at minimal costs aposesed to buying a big block. just wanted to know if anyone over on your side of the world has attempted this feat. or is it still an aussie secret. also some people use honda trail bike pistons on there efe's because they have 20mm pins

At the moment i am trying to get an efe into the nines over the quarter with minimal mods, with no bars and a standard swing arm, then i will go crazy and go for 9.5's with the same setup but with a slick and a bigger motor

[SqDancerLynn1]

I have no idea if it would work. One thing to remember is if you could do it that way the finished block would probably be very weak. When you go that big there are a lot of things to consider Cases need to be enlarged, Slipper clutch or reworked clutch basket , output shaft brg support and I'm sure there are other considerations. Using a slick puts a tremendous strain on the drive train

[Anonymous]

1428 in a stock block can?t be done. Absolute maximum is resleeving and bore to 1327cc. However the recommendation to Bigblock is at 1295cc.
And as SqDancerLynn1 says about other reinforcements is a fact, not desirable things that should be done. They must be done.
But putting your bike at 9,s should be doable with smaller mods.
My dad had a bike with an engine built 20 years ago and installed in a Katana-83 that did the quarter mile in 9,9. The recipy went: 1168cc 10,25:1 wisecos, st.2 ported head with EFe valves, cams I dont really know but I would think from looking at them they were G4:s, 36mm carbs non-vacum and a VH megaphone pipe. I rode it one summer and it was FUN, power wheelies at 65mph :twisted:
It comes down pretty much to you how fast you can go, the bike is the tool.

[KGB]

Send Skip] a PM.
His bike is pretty, no VERY quick and streetable

Sounds like what you want

[lecroy]

That's a nice size engine. Not too big, not too small. Should be a lot of fun if you get one going. I have an old 83/4 that I have setup with this size. You can see the old relic at: http://dickey.no-ip.org/esd3.html

I agree with what has been posted. The stock block will not work. At this size there is no room for any air flow between the liners. The top half of the case will need to be opened up.

I think I would just leave the bike as is and ride it for now. Maybe save enough $$ to get a GSXR or somthing a bit newer to play with.

[cbxchris]

1260cc is a good size in a 1150. Go with 1mm over on intake valves,around a 355 lift cam and 36mm carbs,billet basket,welded crank,etc etc....lot of money. Sadly a hayabusa stock will probably outrun most anything you will build.

[Anonymous]

thats what i thought too, 1230 or 1260 in stock sleaves and a 1327 in stock block with sleaves, but talking to this guru who has done it before on his dragbike, who has now upgraded to a 1803cc katana, 89mm bigblock with a 6.5mm stroker crank. im starting to beleicve what hes saying. my bike is predominantly for drags so im not that worried about cooling isues because the compression ration will be 10 or 11 to 1 so it shouldnt be a big problem. ive been told that with this, all that needs doing is the cases need boring and for racing an external oiling kit. and because im not running wheely bars i will be able to run a slick or an extra wide car tire without too much stress on the chain or on the crank aswell the absence of a 2 stwep rev limiter will reduce crank problems, the same 2 step by dyna which i use on my good old 10 second 625cc gpz550 drag bike.
i will let you all know about the progress in this project of mine and i will try to get some pics of the pistons and rebuild that is included in the reboring and resleaving.

but because of my lean 6 foot 2 body which only weighs 64kg i shouyld be able to run a 9.99 on a stock efe without any probs

[Hap Call]

thats what i thought too, 1230 or 1260 in stock sleaves and a 1327 in stock block with sleaves, but talking to this guru who has done it before on his dragbike, who has now upgraded to a 1803cc katana, 89mm bigblock with a 6.5mm stroker crank. im starting to beleicve what hes saying.

I would check something here...at 89mm bore you may not have any cylinders left...I'm going to take some measurements off my block but I believe that cylinder spacing will not allow a 89 mm bore.


Hap

[saaz]

I think too much fruit has fallen on your head working in the orchids around sheparton!

I would be very interested in what drag strip you run at around there..calder?????

[cbxchris]

You will not be able to crank that engine with a stock starter. The stock output shaft is hollow. There are many things you need to do for drag racing only. There are ways to mill your cases to remove shift forks if you bend them. You will need straight cut gears. Probably need a billet 2nd gear input and output. The stock tranny bearings are junk. Will need to turn the oil pick up around. Thats just a few...get someone with a good bit of knowledge to help you.

[Anonymous]

APE sell an 89mm piston for their gs11 (18mm pin) from JE or Wiseco for the ape bigblock cyclinder head. this makes it 1650 cc with stock stroke or 1803 for stroker motors.

gotto WWW.APERACEPARTS.COM and catch the link to www.GSZONE.BIZ

curently we only visit two tracks, Heathcote, near bendigo and wilby which is only 1/8 mile, were heathcote is a fully facilitated dragstrip with traction only second to sydney which we hope to visit over the over the easter holidays FOR THE WSID ALL BIKE MEET. sadly its an andra meet and i cant run for another year or so, so ill just be crewing.
we used to race at calder in melbourne but bob jane started to treat the racers like *@%^$*@%^$*@%^$*@%^$ and told us to keep racing when water was covering the track and one guy had already been sent to hospital

actualy beleive it or not, the bulk of the pickers in shepparton are passer bys from adelaide, sydney or CANBERRA

[Anonymous]

Fat Pizza-1150: Not trying to be smart, mate, just curious; Where does a 16-year-old find the cash for drag-bikes and hi-po parts that an average guy can only dream about?

At your age, I thought the ultimate in 2-wheel cool was a Mongoose Koz-cruiser bmx, and I couldn't afford one of those !