Rb20 E85 Conversion

[sama1500]

I made a thread about turbo selection before and came to the conclusion of a kinugawa td05, should see nice response along with decent overall power and they're relatively cheap and decent quality, however its nice to see a couple more options out there on a budget

[Roy]

Fair enough, i'm well out of the rb20 game now.

Mike, I had a stock series 2 R33 turbo on my old R32, from memory it was almost as punchy in the low revs... and fell over almost as soon in the high revs, only made 174rwkw with a tune. May have been an issue with my decision to go for an ARC side-mount instead of a front mount though. Looking back i really wish i'd put in a kit to measure the air temps before/after the cooler, I bet that they were going crazy but I can't be sure.

You'd need to get some machining done to fit the correct profile, about $150 ish depending on who does it. Note i don't think you can do this for a gtx2860, only a gtx2863, i've run into issues trying to get gtx2860's sorted for gtr suitable comp covers. issue is that gtx2860's are smaller than 2530's (and all of the other gtr style ball bearing comp covers), so you can't exactly machine in extra material

You are confusing GTRs and GTSt. The comp cover can be an issue if you are trying to use std cooler pipes on your GTR with GTX turbo. On a GTSt just use the std GTX compressor cover that comes with the turbo! No machining required!

[Dose Pipe Sutututu]

I would go for a Hypergear turbo if budget doesn't allow for a GTX turbo.

[sneakey pete]

Thought you were talking about comp covers, not turbine, sorry.

[sama1500]

so a 2871 copy turbo which in need of a rebuild has come up on fb for $50, even has the rb 6 bolt housing

[sama1500]

apparently bearings are gone, worth getting and rebuilding with garrett core or just stick to something genuine?

[Dose Pipe Sutututu]

would not buy, just send your turbo to hypergear

[sama1500]

My turbo is an rb25 one so getting it highflowed would result in a fair bit of unwanted lag

[sama1500]

If I'm only using it for a housing there shouldn't be much of a problem should there?, buy gt28xx turbo, take of housing, put on new housing

[sama1500]

Both are 76 trim, same size turbine wheel and the copy has a .64 AR

[Dose Pipe Sutututu]

how much power/torque are you actually after?

Perhaps a stock R34 NEO turbo might just suit your needs.. I recently road tuned a R34 NEO turbo bolted to a RB20DET and it's not too bad in terms of lag and power.

[sama1500]

It's not so much the power I'm after just don't want a turbo that will blow up with more boost in it, the r33 turbos are limited by their ceramic turbine wheels and the r34 turbos by their nylon compressor wheel

[iruvyouskyrine]

What sort of results did you see johnny? I ran my 32 for 2 years RB20/R34 turbo and it was great. Made 197kw on 14psi with minor supporting mods.

[Dose Pipe Sutututu]

Didn't put it on the dyno so no idea lol..

just put timing into the motor till I could hear a touch of knock then backed a few degrees off.

I'm convincing him to just put a RB25DET NEO into it lol

[Roy]

Pulled my tank out, pump out... Checked filter. All looks fine. No idea why some are having problems, and all the lines off the tank are all 22yr old std Nissan

[cherring]

Ok, I have an RB20 turbo high flow from Hypergear on my car. First link here is when I got my E85 tune. If I had a biggier fuel pump and injectors I could have made more power.

http://www.sau.com.au/forums/topic/103095-rb20-turbo-upgrade-all-dyno-results/page-17#entry6577095

I got sick of E85 and living further away from the pump than I used to, so I switched back to 98RON, this is that tune. Didn't have the budget to go flex.

http://www.sau.com.au/forums/topic/103095-rb20-turbo-upgrade-all-dyno-results/page-20#entry7553653