usmair

best place to buy from?

Double post

9180 1.05 ordered lets see how it goes on a fairly basic engine

what about your manifold though? will it fit such a larger rear?

woah! yeh dont think it'll fit haha

this is a long shot but i may as well ask the question and get thoughts of the guys on here. Currently have a 8374 w 1.05 rear on a custom CRG manifold. The manifold was designed specifically with my turbo specs in mind. I'm contemplating upgrading to a 9180 w 1.45 rear (with eventual goal and having a stroked motor), however at this stage the upgrade only seems viable if the turbo is a straight swap. The concern is the 9180 with the bigger rear housing may not fit on to the current manifold. I wanted to check if anyone on here has had experience with both 1.05 and 1.45 rear housings and is able to comment if the bigger rear would work with current manifold. Don't really want to dick around with new manifolds etc etc so won't proceed if it is not a straight swap. Appreciate it is not a straightforward answer, however thought I'd check anyway. Cheers

fairly old 275 MTs all around. 2step launch did the trick

For anyone who is interested 8374 with 1.05 rear on standard 2.6 engine on e85 Tyres with 275 Mickey Thompsons. 10.7 @ 133mph in Sydney summer. Was running 28psi on the night. Will go again in winter and see how much of a difference the MPH makes.

so yr going ppg?

both white s3 33s

That is true. Comparing his motor to mine is comparing apples to oranges. I ran 134mph last time. Might crack 135-137mph on a cool night Piggaz - is WSID on the cards in the next couple of weeks? Let me know if you go and I'll try to bring mine out on the same night.

Thanks. I'm not 100% sure but I think mine kept making power from 25 up to 30 psi where I told tuner to stop due to stock bottom end. The 8374 has made 550kw at 34psi on JEM's dyno before. Maybe it was out if its efficiency range and exceeding safe turbine speeds - say past 27psi - but it made power. TBH i think JEM's dyno is a little on the happy side but the tune is good so I'm not bothered. Mine sees 31 psi regularly and no issues in the year it has been on the car. *awaits flaming*

bring it out and we can compare how good a 8374 can really be with a solid motor. am really keen to feel the difference

interesting. looking forward to it. Just for fun rather than anything else - i compared my power in the midrange compared to yours - i'm at ~100kw at 3700 - you've got ~270kw - same turbo lol I need me a stroker kit

how hard are you planning on pushing it - boost wise?

Rightyo... cheers for the hospitality guys.... I'm not going to bother arguing about turbos with randoms over the internet. Last time i contribute any actual data to this thread. Peace.

I didn't know about these RPM limitations when I purchased by BW. Had I known it was a 'real' issue (still to be convinced that it is...) and I could not run more than 24 or so psi, I would have purchased a Precision as personally, I am not willing to give up 50/60/70kw of top end power for better response..... A 6266 is a great turbo and while it does not have the pick up and go of the EFR, I would have been completely satisfied with the response of a 6266/3582 if it meant being able to run more boost for that top end power. Others may (and that is fine) but I would not have if someone told me you will blow the turbo if you run 30 psi. Speaking of running 30 psi, nothing has blown up yet and there is nothing to indicate that it will in the near future. Applies to me and others I know with EFR turbos so perhaps this concern that your EFR turbo will go kaboom if you exceed its RPM limits is not much of a concern after all. At the moment it appears that I have my cake and I'm eating it too

Been running 30 psi since September 2016 and no problems so far. I don't hit 30 psi every time I drive it but at the same time I don't drive it like a grandma either (example below). I know one other person with an 8374 running 33 psi..... his car is a daily driver and still going strong for over 2 years. Another friend will soon be pushing 30 psi through a 9180, which has an even lower RPM limit and the only reason it is being capped at 30 psi is due to the stock bottom end of the motor, rather than worrying about the limitations of the turbo. I'd cram 35 psi through it if I had a forged bottom end. IMO it is pretty pathetic of a modern tech turbo if it cannot live at this kind of boost levels, which are very common standard these days. If it does fail due to exceeding the RPM limit, I definitely will not be using another EFR as I'd like to be able to run these level of boost pressures.... and the Garretts and Precisions of the world have no problem doing so. These RPM limits could simply be for warranty purposes.... i.e. BW told you not to exceed X RPM, you did and now the turbo failed so BW has no financial obligation to cover warranty. In my view, it would be near impossible to lodge a warranty claim anyway on car parts given how many hands they go through (e.g. seller, mechanic, tuner, user etc). Too easy to play the blame game. My 2 cents.

btw i now have a 34 getrag with a triple plate clutch sitting on 275 Mickey Thompson radials im going to try and hit wsid in september, shove 31psi down its throat and better my 134mph

now hit the track and tell us the mph you run

if you havent already bought it then just go os triple... why risk it driveability is amazing for triple...

go os giken R series triple plate with OS pull to push converter it'll hold the power and is amazingly streetable on the getrag

Would be interesting to see your mph. Mine was 2psi short on the night and i ran 134mph so id expect 136-138mph with 31psi down its throat.

Dont forget about the stock bottom end