Help me pick a turbo! Please? Current turbo - Blouch Dom 2.5XTR (10cm) The problem - Blouch won't rebuild it since it's a 6yr old turbo. Rebuilding would mean buying a new one. I've called Midwest Turbo and Diesel Connection but neither could rebuild it since its most likely a custom Garret CHRA. Ideal goal - 350whp/wtq on a conservative tune and 400+ on a "track day" tune. Fuel - Pump gas. I'm not interested in running E85 again. Maybe later. Here's my current setup: EJ257 case halves (99.75mm) 8.2:1 CP pistons Eagle Rods D25 heads with GSC valves (stock size). Grimmspeed ported intake + exhaust manifolds DW 850cc injections --> I know this will limit my HP/TQ goals. I'll upgrade after I figure out what turbo I want. DW fuel pump. Spearco TMIC. I'm not sold yet on the FMIC idea. My requirements: Good quality. I will spend the money if I have to. However, I'm not brand loyal. Stock Location. Internally gated. I'm not interested in going external wastegate setup. This is for my forester and it won't be a full race car. It's more of a fun (summer) daily driver. So reliability is a key factor. I've been looking at the Forced Performance Turbos as it seems everyone has one. Is it worth it?
But first, try giving Bob at RavenWorks a call and see if he could rebuild the Blouch, he has - lot of experience doing custom machine work on turbo internals: http://www.ravenworksllc.com/page.cfm/STAFF.html
Haaa. I should clarify, stock location and stock uppipe/downpipe fitment. Unless they made "true" stock location version I can't find? I'll give them a ring tomorrow. It's a bit infuriating that my turbo is now pretty much paper weight.
One of the largest stock location turbos I'm aware of, if that's what you're going for: http://elementtuning.com/store/#!/Element-Tuning-GT65-Turbo/p/1509862/category=439247 Otherwise I had the Blouch 20G XTR on my 08 STI that I was happen with, and Ben had great results with it on his 11 wrx as well. There are a ton of options out there and you should be able to find quite a bit of info and dyno plots on nasioc and iwsti. Edit: I failed to read your setup lol. I would skip the GT65 as you won't be near it's full potential. With your setup, I think the 20G would be a good fit. I was partial to the Blouch I mentioned because it is actually a ball bearing turbo. The other similar sized turbo is the Dom 1.5 XTR...but since you already had the 2.5, you might want to go the same size again or larger. If you jump to E85, you'll have no problem hitting 350 whp. 400 whp might be tough with any turbo on your setup due to the tmic, but I could be wrong on that.
Go for the new PTE stock location turbo. Its a good price and people are getting good numbers from them. More power than a GT65. http://www.maperformance.com/wrx-sti-turbocharger-upgrade-by-precision-turbo-pte-10520301726.html Its a 55mm turbo
Dang that does have potential Nibbler nice call! It's the PTE 5530 if you're searching for info. Apparently it has a weak (9psi?) wastegate actuator, might want to order a 15psi one to replace it... Looks like maybe @xluben and @NF Performance have some experience with them and could hook you up with a deal http://forums.nasioc.com/forums/showthread.php?t=2559017 http://forums.nasioc.com/forums/showthread.php?t=2681395 http://forums.nasioc.com/forums/showthread.php?t=2714898
If he's going for those power levels on pump who cares, install/pull only happens rarely -- you're trying to put 10lbs of turbo in a 5lb space so there's gotta be a compromise somewhere.
I was looking at the GT52. I agree the GT65 is to big for what I want. hmmm I'll wonder if MAP will cut me a deal on one of those It seems all the recommended turbos are Ball Bearing. But what about Journal Bearing options? Being a fun DD, I'm willing to sacrifice the efficiency and response of the BB for a JB. Also the cost savings outweigh the benefits for my intended use.
If you just want a budget stock location JB turbo look into Kamak/Kinugawa. I have their TD06-SL2 20G and I like it a lot. It was only like $800 new too with all gaskets and lines and whatnot.
I haven't driven the car in forever but I have put like 12k miles on it total and never burned oil or did anything funny. It was tuned in the mid 20's PSI on E85 as well as 93. They are a very high quality turbo manufacturer from Taiwan and the parent company makes OEM turbos for a lot of cars (just like MHI, IHI, BW, Garrett do...unlike Blouch or FP). Also, aside from very quick failure from manufacturing defects there isn't really much to go wrong on a turbo if you treat it right. there is basically one moving part (really really fast moving lol). What really kills turbos is: -overspinning them - which could be from a boost leak making the turbo have to overwork to meet normal targets or just tuning to the ragged edge with insane back pressure and lots of heat -bad oil, dirty oil, lack of oil pressure, too much oil pressure - blowing seals and killing bearings this is basically on you doing oil changes and maintaining your car -bad tuning - either pushed too far or letting the turbo to surge from bad bov/bpv (basically jack hammering your rotating assembly) -foreign object damage (like when Ben got his inlet sucked into the turbo)
