stock busa
- Thread starter 05blkbusa
- Start date
badassblackbusa
Registered
around 10psi with a spacer on pump gas with a good tune. 15 psi on race gas with spacer and good tune. around 350 hp is max on stock rods. jc
TurboProstreet
Registered
It all depends on the fuel you use and the kit. I ran 20psi on my 2000 for over a year till i turned it up to 23 and bent the wrist pins? So even with a safe tuneup it's a crap shoot to what yours will take total.
A well tuned stock motor with pump gas and 8psi boost will last for 20-30,000 miles if your not abusing it. I have a bunch of regular street guys out there making 8-10 psi on pump with 0 issues. The only guys i see have any issues are the guys that want to top out the bike every time they go ride. If that fits you then buy an intercooled kit, lower your compression and run better fuel when you go out.
-
A well tuned stock motor with pump gas and 8psi boost will last for 20-30,000 miles if your not abusing it. I have a bunch of regular street guys out there making 8-10 psi on pump with 0 issues. The only guys i see have any issues are the guys that want to top out the bike every time they go ride. If that fits you then buy an intercooled kit, lower your compression and run better fuel when you go out.
-
badassblackbusa
Registered
what hp were you at at 20psi what aftermarket injectors. jc
TurboProstreet
Registered
Old Hahn kit with stock injectors, not very efficient. It made 317 @ 18 and never dynoed at 20. Tried the RC's at the time but it lost HP with them so i went back to stock and turned it down a hair.
-
-
reaper0995
Registered
really depends on the turbo. think the mr turbo's needed a lot more boost to run same numbers as newer kits. the pistons are good till about 350, rods about 300, others have gotten more, but these are the typical accepted numbers most stick too. 10psi is about the limit on stock compression if you have a really nicely designed turbo (like ghetto...), but this is a little pushing it. most will put on the spacer at 8+ psi or an intercooler or water inj. some do a combo os those as well. 6-8 psi is what i am currently looking for on my setup (homemade) and shooting for mid 200's.
good luck.
ps, after making my kit, i can understand why most people say to just buy a kit....there is a LOT of work that you wouldn't really think about in the process. i studied many peoples kits, both homemade and bought. the way tey installed, what they used...and so forth. LOTS of work. that being said though, i wish more people would...kinda catch 22 i guess. i am sure you will enjoy it either way ya go.
good luck.
ps, after making my kit, i can understand why most people say to just buy a kit....there is a LOT of work that you wouldn't really think about in the process. i studied many peoples kits, both homemade and bought. the way tey installed, what they used...and so forth. LOTS of work. that being said though, i wish more people would...kinda catch 22 i guess. i am sure you will enjoy it either way ya go.
badassblackbusa
Registered
spacer goes under the block and lowers compression.
OZBooster
Registered
http://www.hayabusacentral.co.uk/shop/category.asp?idCategory=47
good pics and description .
Spacers do change valve timing
With the likes of JE turbo pistons 080 spacers are necessary as the piston is .080 thicker between the piston pin and deck
can also bump comp on a std motor by removing the std base gasket and use a sealant (if you check clearances and confirm piston /head and valveclearance)
good pics and description .
Spacers do change valve timing
With the likes of JE turbo pistons 080 spacers are necessary as the piston is .080 thicker between the piston pin and deck
can also bump comp on a std motor by removing the std base gasket and use a sealant (if you check clearances and confirm piston /head and valveclearance)
reaper0995
Registered
the cylinder sleeves are not an integral part of the block. much like the head is separate from the cylinders.
if you look just above my finger in te photo, you can see that there is a line down the engine. this is where the cylinders separate from the block itself. so, put a spacer there, and the cylinders dont go any hgher than before, and the head is now further away....less compression
badassblackbusa
Registered
no ruthless a head gasket goes under the head a spacer goes in between the block and the cases. go back to school and learn some more before you call bull on anybodies post son.
NightHawk92
Registered
if youre gunna boost a stock motor be safe about it and get some "insurance". Gary Evens (hes on this site) told me about this. put in an over boost ignition cut out switch. http://tinyurl.com/ymvgrv
my bike over boosted and killed the motor. wish i knew about this switch last year....
good luck with it!!
thanks again to Gary!!
my bike over boosted and killed the motor. wish i knew about this switch last year....
good luck with it!!
thanks again to Gary!!
