Ray, I would suggest the biggest hassles are purchasing a proven kit with good quality components, that is mapped well and trusting a "guy" to tune it later on. They will never be like a std bike as far as ride and forget largely ,,,,is concerned.
Keep it simple and low boost for road use and excellent mapping. This doesnt mean WOT dyno runs and talk about big HP..... road use is all about part throttle transition dynamic response. IMHO
Maj over to you... you have experienced the ride and the BANG <i></i>
Thanks Gazza the reason i asked as i was thinking of a 1464 billet block kit from the Muzzy people for around 5500 fitted they say with the exhaust I have and cams I could be in the 230+ hp with a shit load of torque and no reliability probs. Cheers,
Kawasuki<i></i>
Hi Ray,
From the research i have been doing either way has it's merits and it's pitfalls.
With the turbocharger you need to virtually upgrade the whole fuel system to supply more fuel under boost conditions. This can be done the way i am doing it with an aftermarket ECU like the S&R Pro intercepter, which is a poor mans motec, bigger injectors, and a boost referenced regulator. Or you need a Fuel Management Unit which raises the fuel pressure so you are in the vicinity of 90psi at the injector when it is squited into the bores. The stock injectors will not see you past 200hp and that would go for a big bore kit too IMHO.
There are a few other things you need to think of in the mechanical front ie keep the turbo above the sump or it pisses on the ground when you turn the bike off, and smokes like a bastard on startup.
I am building for 250HP on the street and dont want to go past 10psi of boost. I like technical installations so would like to run controlled boost for the gear I am in. (T shirt, open face helmet 4psi, Full leathers, back protector, full face lid 8psi, Suit of armour to resist the flying bits of motor, 20psi)
My worry with the big bore kits is the lack of cooling in the jacket area, the lack of support for the piston skirt in the diameter vs length ratio, and the fact that you are going to have to beef up the starting mechanism. It would be interesting to each follow our own paths and see where we end up in the horsepower race. I know I'm good to 250HP on stock compression, ~300HP decompressed, and then I need stronger valve springs and rods to continue upwards.
Lets have an open chat at Latte night and get the ideas out in the open. My collection of bits for the snail is coming along nicely so I may be ahead of schedule.
Anybody else out there who wants a new blokes perspective to turbos drop me a line.
Regards
Graham
1hotBUSA
Strike a blow for freedom...Smash a speed camera!!!
Burn the Copper Silver and Gay Mardi Gras Pink!!!
Red/Grey and Blue Blacks Rule!!!<i></i>
Graham,
Umm, 418 hp untouched motor.....
Still alive and well.
Cheesecakes love boost.
Leonard. <i></i>
But then that's it Ray, 280HP. We turbo boys just need to up the boost and if it dont cheese itself then we get more ponies. And I would definately not want to put a stroker kit into it......more sideload on short skirt pistons, sounds like the Gen3 V8 that Holden got for a special deal from GM. Wonder why they were special?
Not bad numbers Leonard. That must be decompressed though I would think? Much more bang for the buck with a turbo, but if you want to get me to clean a big bore kit whilst the management fight over the Hayabusa swingarm then I may be tempted..........NOT!!!
Regards
Graham
1hotBUSA
Strike a blow for freedom...Smash a speed camera!!!
Burn the Copper Silver and Gay Mardi Gras Pink!!!
Red/Grey and Blue Blacks Rule!!!<i>Edited by: 1hotBUSA at: 13/9/05 9:00 pm
</i>
Graham this not the bored kit , its the billet big(new) block.So no probs with overheating only fuel. It can go to 1661 when stroked.approx 280+ Cheers,
Kawasuki<i></i>
I've started running 100hp jets now on the wet kit and it dynoed at 258hp. It gives me about 5 of 6 full squeezes 4th and up p/bottle if I need them.
Stock, pipe, pcII.
Total cost $800 and $25 a bottle.
IMO best bang for buck and no hassles. (YET!)
<i></i>
Graham?
Quote:We turbo boys
You ain't there yet dude...
Do you see me saying, "we 9 second boys"?
Sure, I'll be there in a few months (), but I ain't there yet...
"sometimes, crime does pay"
Customer Service & Complaints Division
Easyrider Imports
www.easyriderimports.com.au
<i></i>
Graham,
You didn't read the post (un touched motor) not even the rocker cover was removed !
I call it as I saw it .
Leonard. <i></i>
That's amazing, considering everyone on the board says the motor is good for about 250hp before you have to strengthen bits inside.
"sometimes, crime does pay"
Customer Service & Complaints Division
Easyrider Imports
www.easyriderimports.com.au
<i></i>
The next question may be which fuel
i have run my streetbike at 12psi on bp100 , injector size limiting any higher boost (rocker cover has been off to retension headbolts)
Pan 250 hp is a relatively safe figure on pump fuel , Detonation limits you same as it would with a bigbore and too much compression or too big a shot of nos .
Common believe is that 350 or so hp is not good for your rods in the long term or `400 for pistons these figures will vary lots , biggest single factor again being detonation (even indetectable) will reduce these numbers quite a bit. <i></i>
Pan.
I am currently sitting in a room surrounded by turbo bits that are getting various parts designed for them in CAD so I reckon I'm close enough to be a turbo boy. I thought your bike was decompressed Leonard, that is a very good number for stock compression. It must be retarded a fair bit on boost.
Pan, the stock Busa motor will go to ~300hp before we need to look at beefing up components, the first things to crack the shits are the injectors, they are only good for ~200hp on stock pressures. Then you either up the pressure to the stockers or up the size of injectors. The stock ones are 220cc, I am looking at going to ~400cc Regards
Graham
1hotBUSA
Strike a blow for freedom...Smash a speed camera!!!
Burn the Copper Silver and Gay Mardi Gras Pink!!!
Red/Grey and Blue Blacks Rule!!!<i></i>
Graham I have been offered a 1661 kitted Busa to ride on the Snowy hoot I will give you a roll on in top gear from 100 whadeya recon Cheers,
Kawasuki<i></i>
Don't put any money on it Ray! a correctly sized turbo would take ~1 second to be making boost if the roll on was starting above 3k rpms, at 5k there would be no lag and at 7psi would be like a roll on against a 2 litre busa
Would be nice to compare apples with apples . <i></i>
Graham,
That was dave's bike that had 418hp but I forgot to add it was on Elf 124 fuel . I wouldn't go to crazy on pump fuel ,I limit the boost to 7# on pump and still have enough to go round those pesky big bores
Leonard <i></i>
|
Contact Us
