| Author | Message | ||
     Ridrnkink18 |
so im still curious...that is the huge amount of difference between the firebolt motor and the sportster motor? people say if you try to turbo a firebolt you will blow it to pieces which has to be bull because you can make up to 225 hp on a stock sportster motor before it will cause a severe amount of damage. why couldnt you take a sportster setup and throw it on a firebolt? it just makes no sense. tuning wise as well. if its so bad and risky to tune a buell ecm why is it not on a sportster someone please fill me in on this. | ||
| Bombardier |
Turbo buell has been done and is a member of this site. Search for Turbo XB. | ||
| Ridrnkink18 |
i know that...but from what he did it seemed to be such a hassle..i just was curious about taking a kit for a sportster and usin that...im going to turbo my bike i just like to ask random questions to get filled in on as much as possible. thanks | ||
| No_rice |
well, for starters the turbo kits that would work for a sporty are for carbs not fuel injection so there is no ecm tuning i hate to say this but to get 225 horse out of that motor in stock form MAY be possiable, but you will have alot of problems and the motor will grenade. the amount of boost you would have to run is to large for the stock setup to hold together. you would be puking oil out of every crack in the motor. a friend and i built a bourget with a gasket less(machined fit for everything) 210 motor to run 20+ pounds of boost/nitrous and even that had to have engine cradles to hold the heads on. there was a guy on here getting more power out of his xb12 (doctor-something or other?) but if i remember right he was running such higher boost that he was having problems with oil flow and his gaskets kept seeping.) i know that...but from what he did it seemed to be such a hassle why waste the time if you arent going to do it right though? | ||
| Mr2shim |
The VAST majority of sporty's are carb'd. I just did some brief google searching and there are turbo kits for an EFI sporty, since HD went efi on all their bikes in 07? Can't remember exactly when. http://64.176.160.182/catalog/traskinjectedblacksp ortsterturbosystem-p-101.html?osCsid=309c8eee4ea3a 5c9596c1197b603f626 I'm curious to know. If/when you turbo your xb, will it be capable of 290mph?  (Message edited by mr2shim on July 14, 2008) | ||
| Nik |
Go outside and look at your XBs intake and figure it out for yourself. | ||
| Ridrnkink18 |
hahaha 290? cmon thats just a comment that doesnt need to be made. And of course its gotta be done right. i have a good amount of money comin in..big bonus...so money wasted will not be an issue to get it done right | ||
| Not_purple_s2 |
I think the issue is compression ratio. Buells have 10:1 which is a little high to be running boost. Sportsters typically have lower cr's of 9:1 or less. Most of the Buells I've seen with turbos have been S2's. The S2's came with large chambered Sportster heads and had a cr of 9:1. There's a small handful of Turbo XB Buells out there but they're custom systems. It can be done, but it's not simple. There was someone here working on a turbo kit for XB models, he had the prototype on his bike but I don't know if he has made the kit yet. | ||
| Ridrnkink18 |
well common knowledge if you turbo a bike you want lower compression to begin with | ||
| Mr2shim |
Do you by chance have pictures of your big bore xb9? | ||
| Not_purple_s2 |
Yes, further complicating the build, but no as much as the fabrication required for custom exhaust, custom intake, ect ect. The simple answer to your initial question is; No, you can not "take a sportster setup and throw it on a firebolt." Not without extensive changes to both the bike and the turbo kit. But maybe it's a place to start. | ||
| Ridrnkink18 |
its not the greatest picture due to the fact it was a cell phone picture but the bike next to it is the 750 that i can pull on  | ||
| Mr2shim |
So, You have. a big bore kit, chain conversion, custom swingarm, power commander, stabilizer, full exhaust and a firebolt. But you don't have a digital camera to take some decent pictures of these glorious mods? I'm not understanding that logic. Nice bike though. | ||
| Ridrnkink18 |
cameras are not something i really spend my money on when u can just lose a camera...i could take a picture with a 5$ disposable but the picture would not be any better. if i get a digital ill get better pictures..damn you guys are harsh..hahaha just playin around thanks i try to make it nice...all black is the way to go in my eyes | ||
| Ridrnkink18 |
and i actually just took my exhaust off wen i was redoing my oil lines to notice that the mount on the exhaust just wripped two holes out of the metal...so i had to basically put a collar around the section...kind of beat so i wrapped in exhaust wrap again | ||
| Ducxl |
225 hp on a stock sportster motor before it will cause a severe amount of damage. You removed all doubt with that one. TOTALLY IMPOSSIBLE...I said TOTALLY | ||
| Ridrnkink18 |
eh mayb not...i did plenty and plenty of research look it up they said the motor will handle up to 225 hp...thats what i just read and i was quoting i should have went back and found the site but i didnt so its not my words that said that i used someone elses facts as of what they experianced... | ||
| Wantxbr |
Ridrnkink18 Try to get a hold of EricZ. His XB is turbo'd with water injection. It's not no 225 but he could have some info that could help you out. | ||
| Ridrnkink18 |
i tried to search it up but im at work so i cannot spend all day looking mayb im right mayb im wrong but it was just a statement feel free to shut me down i would not build a 225 hp bike without any bottom end work whatsoever that would be stupid | ||
| Ridrnkink18 |
i have tried to get a hold of him...he doesnt seem to like to give off information on his bike!!! as we all probably are...im dying for him to come out with a kit so i could just throw it on there already knowing exactly how to handle it. but to be able to build it youself just gives me that much more pride in my work | ||
| Mr2shim |
http://www.rbracing-rsr.com/harleyturbos.htm Pretty much disproves everything the OP has ever said. Oh, and they have pictures and proof of their claims. | ||
| Diablobrian |
They are not putting 250 hp through a stock, pressed together, crank. It WILL come apart! The bottom end of the Sportster and Buell motors need serious work to survive very long even with the 88" big bore motors (naturally aspirated) putting down 120rwhp. Also beware of the difference between crank and rear wheel horsepower. There is a parasitic loss of 10-15% in between the crank and the rear wheel. So 200hp at the crank translates to 170-180 at the rear wheel. Be careful of sweeping statements about what can be done with "stock" motors. | ||
| Jos51700 |
"has to be bull because you can make up to 225 hp on a stock sportster motor before it will cause a severe amount of damage" VRODS need serious bottom end work before this can occur. An (essentially) 50-year-old bottom end like the XB uses? Never. An stock-bottom-end XB/XL at 150 horse? I won't stand near it while it's running. | ||
| Ridrnkink18 |
i have looked at that site plenty of times...its very interesting but also very expensive!!! | ||
| Glitch |
Have you thought of leaving your XB the way it is, and buying a tuber? Seems like it would be a lot easier to run a turbo on. Open chassis, lower compression, carb etc... Besides, by the looks of that site, you could buy a tuber and still have cash left over  | ||
| Ridrnkink18 |
yes i have actually...but the design and handling of the firebolt just blows my mind and i dont want to turbo any other bike. im not going to go through that site what so ever. im buying my own turbo and taking it from there. where there is a will there is a way...im sure i can figure it all out...thanks for suggestion though | ||
| Mr2shim |
Don't forget to buy a disposable camera for the whole 10 dollars it costs. Because no one is going to believe your bullshit otherwise. | ||
| Viper9885 |
You can turbo basically anything.... and before I start I would like to say good luck and when you get it done I want to see pictures and/or videos man. But basically there are a couple key things to turbocharging anything Fuel: more air more fuel. you will need bigger injectors....turning the fuel pressure up or tuning wont cover it Air: when you compress air it gets hot, and feeding hot air into a hot engine is bad so make sure you have some form of air temp management like water injection or a decent intercooler Spark: make sure you get at least one if not two stages colder plugs and personally I don’t know if they exist but I would look for some sort of aftermarket uprated coil and definitely change the wires Clutch: lol I don't even have to say anything Engine Internals: I don’t know alot about how strong these engines are under boost, but I would at least call someone up and try to have a custom set of like 9:1 or 9.5:1 compression pistons, cause 10:1 will work but you will only be able to push up to about 9-13 psi which is fun, but if you ever want headroom you will have none. As far as everything else goes, I don't really think it would break up unless you’re really ripping it. I would get some cometic gaskets and if ARP makes fasteners get ever nut and bolt they make Management, management, management: this is last because it is the most important, GET A WIDEBAND that’s not a suggestion, its a requirement, if you are going to boost you need accurate A/F's. another HUGE thing is make sure whatever management you are using not only has fuel adjustment but also ignition adjustment (I don't know about your skill level but if the guy tuning the bike knows anything about anything he will thank you for it) and you will thank him when your bike comes out running so smoothly and so streetably that you can't even tell its boosted....well until you.... and I will close with this, just remember boost is very fun but also very hard on your engine if not tuned properly so if you are out riding around thinking hey 6 psi is good, 10 psi will be better, DONT TOUCH THE BOOST CONTROLLER. lol I cannot tell you how many people I personally know that had that same idea on a perfectly running well tuned car and ended up...very quickly without a perfectly running well tuned car. Turbos make it very easy to very quickly do large amounts of damage to engines if the engine is not properly tuned. The turbo the fuel the air the clutch the ignition, all that shit adds up to 10% of the total picture, the other 90% is the engine itself and how well it’s tuned for the boost | ||
| Ridrnkink18 |
mr2shim...get a life i dont give a damn if you believe my "bullshit" or not | ||
| Ridrnkink18 |
lets see you do something with a bike...but i bet your one of those guys that uses money to have the dealership to do it because you have no mechanical skills...and i bet no riding skills either |
