i just picked up a buschur br500bb turbo kit on ebay.
http://cgi.ebay.com/ebaymotors/ws/eB...5970137&rd=1,1

i got it for $1220picked up. the turbo has no shaft play at all and everything looks great. but i just have afew questions
exactely what turbo is this gt3076r? gt3071r? what size ar exhaust and compressor housing is this? whos makes this turbo?? gaterrt? precision? turbonetics? how come i can never find any info about buschur turbos?. what size is the internal wg spring set at?? how much power can i expet on 21-22psi on pump gas with this turbo and the mods i have in my sig? how much can this make on race gas? what kind of turbine inlet flange is it???? i know its not a common t3 flange. its a strange round style flange.

all in all i think i got a good deal even though i know this kit was replaced with the newer external wg setup.

 

Have thought to pick up a phone and call Buschur? Just a suggestion.....

 

Weres The Wastegate?????????

 

well the link you posted up of ebay says this

Buschur Ball bearing 30R

 

its behind the turbo, if you click the ebay link you can see it in the other pics

 

Its internal, like your stock turbo.

 

gt3076-400whp on pump...i remember seeing the charts a long time ago-race gas=closer to 500whp

 

looks like a 3" intake on the compressor side of the turbo, must be an old 3076

 

What you have there is a 3076r (but not a true 76r, on a true 76r you would have a 4" intake on the compressor if I remember right) with a .48 turbine housing made by Precision Turbo. The best thing to do is upgrade the turbine to the new BR turbine and external waste-gate. On the .48 turbine I have run 11.50's @110 letting of the gas around 1000' to keep from going faster then 11.49, if I walked off the line and then got on it the best MPH was around 124. You have a pretty good turbo there but the .48 turbine will limit your max boost to about 26psi. I had a lot of passes on that turbo and pretty much had it maxed out at 26psi, any more boost did nothing.

 

so its a small hotside? i have a 3037s with a .82 hotside. wow bi difference.

 

Yea, way small. With a the bigger turbine from BR it spools faster and makes good power to 29-30 psi. The turbine that is on that kit is so restrictive the larger turbine will spool faster. I was hitting 20 psi 4500 rpm, not all that great. I have some boost logs somewhere let me see if I can find them.

 

Heres a log of it running 20 psi.

 

wow 5000 rpms u only hit 19.6 psi?? thats crazy. i hit 21 by 4700 in my 3037s with .82

also looks like u went lean at 5000

 

seems like these are questions you should ask before making a major purchase you're a braver man than I

 

for $1200 as long as you happy w/ it congrats