BlackMagic859 Posted November 27, 2005 Report Posted November 27, 2005 I was wondering can the stock turbo on the TGP be replaced with a ball bearing turbo? Quote
Prospeeder Posted November 27, 2005 Report Posted November 27, 2005 Oh, our turbos arnt ball bearing....crappy :? Quote
TGPilot Posted November 27, 2005 Report Posted November 27, 2005 Oh, our turbos arnt ball bearing....crappy :? Not even close! Any turbo can be made or rebuilt with a BB setup...dual ball bearing of course is the best with ceramic bearings holding a close second. There are T-28's with DBB...aka the Disco Potato A high zook T3076 with a DBB also that Jud is currently using. But you can purchase a DBB cartridge from just about any performance turbo shop and put it in yourself or have them do it. Curious to know why you would DBB your stock T-25 though? 8) Quote
BlackMagic859 Posted November 27, 2005 Author Report Posted November 27, 2005 Oh, our turbos arnt ball bearing....crappy :? Curious to know why you would DBB your stock T-25 though? 8) a DBB turbo would Spool up faster wouldn't it? Quote
92 GP Posted November 27, 2005 Report Posted November 27, 2005 Oh, our turbos arnt ball bearing....crappy :? Curious to know why you would DBB your stock T-25 though? 8) a DBB turbo would Spool up faster wouldn't it? Correct, but he was implying why would you DBB an economy turbo when you could upgrade it 8) Quote
Prospeeder Posted November 27, 2005 Report Posted November 27, 2005 what bearings DO we have, Journal Bearings? Quote
TGPilot Posted November 27, 2005 Report Posted November 27, 2005 Curious to know why you would DBB your stock T-25 though? 8) a DBB turbo would Spool up faster wouldn't it? Correct, but he was implying why would you DBB an economy turbo when you could upgrade it 8) Our turbos are so small for the application that we are boosting pretty well at 2000 RPM. Most any turbo I have sat behind that could handle top end breathing would not spool until 3200-3500 RPM with thrush bearings. Now when you upgrade to DBB that spool RPM drops to 2900-3000RPM. Any turbo that spools to full boost at a low RPM can not feed enough air for top end. Then any turbo that can flow air and boost efficiently will be laggy on the bottom end. 8) Quote
92 GP Posted November 27, 2005 Report Posted November 27, 2005 Curious to know why you would DBB your stock T-25 though? 8) a DBB turbo would Spool up faster wouldn't it? Correct, but he was implying why would you DBB an economy turbo when you could upgrade it 8) Our turbos are so small for the application that we are boosting pretty well at 2000 RPM. Most any turbo I have sat behind that could handle top end breathing would not spool until 3200-3500 RPM with thrush bearings. Now when you upgrade to DBB that spool RPM drops to 2900-3000RPM. Any turbo that spools to full boost at a low RPM can not feed enough air for top end. Then any turbo that can flow air and boost efficiently will be laggy on the bottom end. 8) Exactly my point, meaning the T-25 was added for a performance/economy mix. It's spooled by 2K, meaning it wasn't entirely designed for an aggregate society of racers. More so, in that era, for people who would be using it for reliability, and even you racers who have Turbos and aren't always in the 5K+ range 8) Quote
Garrett Powered Posted November 27, 2005 Report Posted November 27, 2005 So any turbo shop has them? I got to check with oregon fuel injection and see if the can supply me with a cartridge. They tend to be quite inflated though. What price range should I be looking for? Quote
TGPilot Posted November 27, 2005 Report Posted November 27, 2005 Any turbo rebuild I have ever seen with a DBB cartridge upgrade ranges from $400-$800 installed. It depends on the maker of the cartridge and how much labor you are charged. 8) Quote
Garrett Powered Posted November 27, 2005 Report Posted November 27, 2005 I got a fresh build, but in about a year I will probably get it fitted with a cartridge and rebuilt. I have been pretty hard on it all summer Quote
FastSE2DR Posted November 28, 2005 Report Posted November 28, 2005 generally ball bearing turbos are not made to "spool" faster right away but to give you better boost response...i know it sounds like the same but its really not...being around the nissan guys a lot more they have made this very clear...the disco potato is the GT28R...someone should try out the GT2540R...should spool nicely and can make around 350whp on an SR20... Quote
TGPilot Posted November 28, 2005 Report Posted November 28, 2005 generally ball bearing turbos are not made to "spool" faster right away but to give you better boost response...i know it sounds like the same but its really not...being around the nissan guys a lot more they have made this very clear...the disco potato is the GT28R...someone should try out the GT2540R...should spool nicely and can make around 350whp on an SR20... Well I think boost response and spool time run hand in hand no? Can you educate me on the difference? I am not being a smartass...just wanting to learn. I have seen two different DBB setups that you could literally blow with your mouth lightly (keep the comments to thyn selves! ) and the turbo wheels would spin...and that was with very little effort. We have a gent (Jud) who is running a T3076 which is rated to 400+whp. From my understandings this thing is the largest internally wastegated turbo on the market that is a direct bolt on to the T-25. Quote
dbtk2 Posted November 28, 2005 Report Posted November 28, 2005 We have a gent (Jud) who is running a T3076 which is rated to 400+whp. From my understandings this thing is the largest internally wastegated turbo on the market that is a direct bolt on to the T-25. When did he install that. Last I knew he was running the GT28R, which is a step down from the disco potato... I'm planning on upgrading to the 2871R over the winter. Shawn Quote
TGPilot Posted November 28, 2005 Report Posted November 28, 2005 When did he install that. Shawn http://www.tgpforums.com/tgp/viewtopic.php?t=2754 Quote
FastSE2DR Posted November 28, 2005 Report Posted November 28, 2005 generally ball bearing turbos are not made to "spool" faster right away but to give you better boost response...i know it sounds like the same but its really not...being around the nissan guys a lot more they have made this very clear...the disco potato is the GT28R...someone should try out the GT2540R...should spool nicely and can make around 350whp on an SR20... Well I think boost response and spool time run hand in hand no? Can you educate me on the difference? I am not being a smartass...just wanting to learn. I have seen two different DBB setups that you could literally blow with your mouth lightly (keep the comments to thyn selves! ) and the turbo wheels would spin...and that was with very little effort. I can't really explain it as such but I'll try my best...its like when you are in between gears and you get back on the throttle again its back quicker or somethin...i know theres more and ive had it explained to me a few times by way more knowledgeable people cause I am just now really starting to get into GT series turbos(thats what all the SR guys use for the most part) from when I used to be DSMer when they all used 360 thrust bearing turbos...if i can dig up a better explanation ill do that just for you haha Quote
Garrett Powered Posted November 29, 2005 Report Posted November 29, 2005 OK, OK check it out. GTPilot. You like it? Now you got to find a better one for me cause Gadget Powered sounds lame. Quote
TGPilot Posted November 29, 2005 Report Posted November 29, 2005 OK, OK check it out. GTPilot. You like it? Now you got to find a better one for me cause Gadget Powered sounds lame. Did I miss something? :? Quote
Garrett Powered Posted November 30, 2005 Report Posted November 30, 2005 never mind bud. your lost. Quote
TGPilot Posted November 30, 2005 Report Posted November 30, 2005 You have to realize I am 34 and smoked alot of weed when I was younger...so the brain cells are a bit weak when it comes to memory! Now I know what you are talking about. 8) Quote
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