TurboSE Posted December 19, 2011 Share Posted December 19, 2011 I'm coming to the point in my build (fabbing piping for FMIC, exhaust, etc)and I'm still not sure what kind of turbo will suit my needs. I picked up a T78 from a fellow RB26'er for a pretty good price, but I'm starting to think it may not be the right direction (it also needs a rebuild and a V-band flang welded onto the exhaust housing), so I don't want to throw good money after bad. The goal is a 6-700hp. street car with some occasional strip time...I think the T78 maybe too top-end heavy for my use...plus, it's an old turbo. What is everyone else running? I'm not afraid to do my own research, but honestly, I don't know how to read a compressor map and apply it to my needs. So I'm looking for suggestions on turbos and if anyone knows of a good place to learn to read turbo maps, please link me to it. engine specs that may help: Eagle rods 87mm CP pistons B Poncams Full Ferrea valvetrain I'm sorry for my ignorance, but any and all help is appreciated. Quote Link to comment Share on other sites More sharing options...
ZT-R Posted December 21, 2011 Share Posted December 21, 2011 600-700 in a s30 in street trim? How are you going to keep it out of a ditch? 17x15 slicks? Quote Link to comment Share on other sites More sharing options...
TurboSE Posted December 21, 2011 Author Share Posted December 21, 2011 600-700 in a s30 in street trim? How are you going to keep it out of a ditch? 17x15 slicks? Sorry, shoulda specified...S13...I know this isn't an S-chassis forum, but the RBer's here are some of the most knowledgeable and helpful I've found. Quote Link to comment Share on other sites More sharing options...
ZT-R Posted December 21, 2011 Share Posted December 21, 2011 Well I am looking hard at the new Borg warner EFR setup. I am only wanting aboout 500-550 so i am thinking the 7670 or a 7664 EFR with the internal wastegate. I am hearing good STREET results. Dyno results look pretty close to garret GTX series, PTE, etc... Supposedly they spool pretty good on the street. I think Geoff is running a 8374. There is not many of them out there yet as they are pretty new. BG EFR Info I like the internal gate for the the S30 chassis as room is a huge issue. Quote Link to comment Share on other sites More sharing options...
dwarlick Posted December 21, 2011 Share Posted December 21, 2011 Have you read this thread? A guy here a few years ago had a similar setup. Has some good info, he originally had goals of 1000+ but settled at 720hp. Quote Link to comment Share on other sites More sharing options...
TurboSE Posted December 21, 2011 Author Share Posted December 21, 2011 Well I am looking hard at the new Borg warner EFR setup. I am only wanting aboout 500-550 so i am thinking the 7670 or a 7664 EFR with the internal wastegate. I am hearing good STREET results. Dyno results look pretty close to garret GTX series, PTE, etc... Supposedly they spool pretty good on the street. I think Geoff is running a 8374. There is not many of them out there yet as they are pretty new. BG EFR Info I like the internal gate for the the S30 chassis as room is a huge issue. Good info, I will look into the BW set-up. Quote Link to comment Share on other sites More sharing options...
TurboSE Posted December 21, 2011 Author Share Posted December 21, 2011 Have you read this thread? A guy here a few years ago had a similar setup. Has some good info, he originally had goals of 1000+ but settled at 720hp. I was actually looking for that thread, thank you. Quote Link to comment Share on other sites More sharing options...
TurboSE Posted December 21, 2011 Author Share Posted December 21, 2011 I know price isn't always an indicator of quality, but the BW turbos are significantly more expensive than Garrett, any opinions of whether they're worth it? Quote Link to comment Share on other sites More sharing options...
ZT-R Posted December 22, 2011 Share Posted December 22, 2011 (edited) GTX garrets are not much cheaper. (dual ball bearing) and you dont have to buy a wg or a bov if you dont want to... Edit, Actually garrett is more if you get the GTX because I dont think they come with the turbine housing. Edited December 22, 2011 by ZT-R Quote Link to comment Share on other sites More sharing options...
TurboSE Posted December 22, 2011 Author Share Posted December 22, 2011 GTX garrets are not much cheaper. (dual ball bearing) and you dont have to buy a wg or a bov if you dont want to... Edit, Actually garrett is more if you get the GTX because I dont think they come with the turbine housing. hmmm...maybe I haven't been comparing apples to apples... Quote Link to comment Share on other sites More sharing options...
TurboSE Posted January 2, 2012 Author Share Posted January 2, 2012 Any thoughts on Precision Turbos? Quote Link to comment Share on other sites More sharing options...
Bernardd Posted January 2, 2012 Share Posted January 2, 2012 I have a buddy with an R32, stock bottom end, hks cams and cam adjusters, that we setup with a t72. I believe it is a ballbearing turbonetics turbo. It has a .68 p-trim hotside and gets 20ish psi by 5200 with a simple bleed type boost controller. It has had no weight reduction and traps at 126mph in the 1/4mi. Quote Link to comment Share on other sites More sharing options...
TurboSE Posted January 2, 2012 Author Share Posted January 2, 2012 I have a buddy with an R32, stock bottom end, hks cams and cam adjusters, that we setup with a t72. I believe it is a ballbearing turbonetics turbo. It has a .68 p-trim hotside and gets 20ish psi by 5200 with a simple bleed type boost controller. It has had no weight reduction and traps at 126mph in the 1/4mi. Now thats good info, thanks! Quote Link to comment Share on other sites More sharing options...
motoman Posted January 15, 2012 Share Posted January 15, 2012 (edited) This is a really Good book on turbos. It goes through the math involved to select the right turbo for your type of use and power goals. http://www.qbookshop.com/products/144219/9780760328057/Turbocharging-Performance-Handbook.html Edited January 15, 2012 by motoman Quote Link to comment Share on other sites More sharing options...
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