Are you installing a Falicon (or similar) crank? If that's still the stock crank and bearings, 200 hp will turn it into a hand grenade.

 

Um, no.

No I was gonna leave the crank. Holeshot said they are strong enough they said you only need to change the crank if you turbo them and run silly psi through them

Everything I've read, been told, and have seen says stock crank, bearings and rods are good quite a bit past 200hp. Different sources have different opinions on what should be changed at what level after that. I had mine dyno'd at 190 at the wheel in my early stages of tuning. Now, that was on a dynojet dyno, so everyone will slam it for being inaccurate. So be it. It was also at 7lbs of boost with crappy transition tuning, and a lot has been fixed since then. Running 9lbs now and almost have it so it will jerk your arms off at 5500 when the needle slams toward redline. No problems, and the engine is solid.

Can't answer your mod questions because I went the boosted route, but my vote is go to town. There is alot in these engines to be had, or people wouldn't have been building the hell out of them for the last 20 years. Good luck and keep us posted.

 

No I was gonna leave the crank. Holeshot said they are strong enough they said you only need to change the crank if you turbo them and run silly psi through them

 

Ur choking it with 38s. Best go with 40s

 

Yes true it's just I have a set of 38s but I will prob sell them and get some 40s. Does anything think it will make 200 bhp with the work I'm going to do?

 

No way your current engine is making 143 HP; the dyno is lying.
And your mods will NOT result in 200 HP for sure. Maybe 170ish "real" horses; not measured on the dyno your previously used.

 

It was dyno'd at TRL there dyno cost £115,000 it's one of the most accurate dyno's in England, why wouldn't it make 143 rwhp when they have 139.5rwhp standard and I have full exhaust system, dynojet kit and different airfilter so I'm getting loads more fuel and air than a standard bike. So with all a full exhaust, dyno kit and filter I have gained 3.5hp which I think is about right

 

If you're doing all that, why bother with ignition advance plates? Toss the stock ignition and get a programmable Dyna setup or something. Even then, 200hp seems unreasonably optimistic to me. If that's seriously your goal, have a sit down with a big name engine builder and get a quote from them. You'll probably buy a new bike instead as it will be cheaper ... unless you go turbo.

139 hp at the rear wheel also seems optimistic to me, parasitic losses will definitely eat more than seven horsepower. Are you sure the number you're getting out of the dyno isn't already a corrected estimate of crank horsepower?

 

I understand what you all mean that's why I posted up for advice. I wanted to hear from someone who has tuned there's and what results they got. It was defo 143hp at the wheels and not the crank. I have already spoke to holeshot racing who r the biggest motorbike tuners around and he says it will easy make 200hp at the crank not the wheels. Powertec get 185hp out of there engines and they hardly do anything to there engines. They also said it will do 200 hp as the zx11 is a very capable engine as it's undertuned standard. All of you saying it wont make 200hp at the crank. How do u know have you tuned one and tried it. Is there anyone on this site who has or are you all just gonna say you don't think it will when u have never tuned one

 

speculation;
big bore
big compression
big cams
most importantly, great cylinder head work
then you will discover the weak areas of the design

I hate to say this but why not just put a Busa motor in it?

 

Check the video posted here.....:crazyloco

http://www.zxforums.com/forums/zx-11-forum/33920-zx-11-engine-blows-rod-its-way-700-hp-dyno-pull.html

 

Oh that some funny shit there......You will never reach 200HP unless you boost it or put big $$ in a MAJOR bore and stroke with new block and head.......

Cheaper to buy a 12R........They handle better too......A 12R with a simple 1270 kit and mild head work will put down 190's at the tire all day long......Dont waist your time with the 11....That is unless you have LOTS of disposable income...

 

Prob a $6K blowup > Easy

 

so ..... your dropping a bike into a car???

 

That's what I want to hear I thought again putting a busa in it but they are only a claimed 175 hp and for a good engine u will pay 2.5 to 3k. The new busa is wey out of my budget. Plus I can get a good deal on the big bore so it won't be expensive to do as I would buy all the parts and build it myself. Plus it.would be an achievement to beat the standard busa boys in there cars with an old well set up zx11. Plus I wouldn't put a busa in it I would go zx14 same sort of price and loads more power

 

How is a Falicon crank any stronger when it is a re-worked stock crank? It can be lighter or better balanced. Stronger? I don't see how.

 

It has more to do with precision and higher-quality bearings than "strength" whatever that means.

 

are you allowed to run fuel injection? i have a hilborn fuel pump set up for the zx11 motor. this is for a mechanical setup.

 

old mini sprint Alky setup?

 

Rods are good for 350hp
Crank will take a whole lot more, I currently make 500RWHP with about 23psi (very low comp motor) but have seen over 42psi when really pushing the motor on a flying mile.

 

if i needed a crank i would just do it myself lol what they are doing isnt rocket science if i ever dive into building mine i would v cut the crank and pendulm cut what is left of the counter weight. over balance it cryo and nitrite it it is a steel crank stock i know it would be gd for 200hp with out a problem.

 

just for info

hi guys, was just just looking for some info and came across this thread. ive got an OMS single seater with a zzr1100D. its built by extreme engines with falicon rods, 1109cc etc. originally had the flatslides fitted and made 164bhp @ wheels.
now gone to fuel injection with busa throttle bodies and microsquirt ecu. response is so much better and made 175@wheels at 9700rpm and 110ftlbs at 8400rpm with stock timing. had some issues with trigger wheels, gone through 8 custom wheels to get it to work. gna try again this week coz there is another 15bhp in timing according to dyno printouts. thought info might help anyone wanting to build same thing.

 

Whats the deal.. ?

Is this build for real? :headscratch
No pics?

 

yeah no prob ill upload some tmrw. just fitted a carbon ram airbox last week but needs a bit of tidying up. ill take pics and upload them soon.

 

I was hoping the OP would have a update..

:lol

Id love to see your project too!
I guess there are a few people in malta that enjoy the zx11 also!

 

What was the issues with the trigger wheels. and what was the solution?

ZZR1200 into ZX11D with MegaSquirt in progress, and I'd much rather learn from other's mistakes. :smile

 

hi guys, ive been trying to resize and compress but they are stupid small and you wont see anything. If anyone wishes to give me an email address or facebook i can send them on that.

problem with the trigger wheel was it was not sensing the gap no matter the size of it or spacing, even tried with two pickups on it. we are now going to fit a cam sensor this weekend to see if we can solve it. there is a lot more power left in the timing so i hope it works. if not going to try an advancer but thats going to increase throughout the band and im happy with the bottom end dont want any pinking, just need to whack the timing up at high rpm.

cheers! ohh yeah and there are a couple of other zzr1100 in Malta, one of them is rotrex supercharged running on motec, very nice setup! thats my next step if i cant catch the top 3

 

Good news so far. Cam sensor installed and engine started, showing every sync and every pulse next step is dyno session tmrw morning. Its the same dyno so will see a back to back comparison.

 

Host the pictures on the photobucket site, then copy the IMG links and post here