So I was reading the newest edition of zoom mag and saw on pg 6 a new rear mount turbo system.... so here is the link to their website: http://ststurbo.com/universal_turbo_systems They have made a bolt on system for the 350z however I was thinking this could really work for our Z's would free up a bit of the engine bay thats for sure! Pics from the sts turbo website: So has anyone looked into this new technology yet or even seen this in action?
It won't be nearly as efficient as the stock TT setup, for a single turbo a custom front mount setup would be a lot better than a rear mount. More efficient, lighter, simpler and less lag.
Never been super successful on small motors, They use minute exhaust housings as well to give acceptable response, at the sacrifice of top end. Putting these on an NA has it's merits, as you don't want too much boost anyway, converting a TT to a rear mounted setup would be a huge waste of coin. The exhaust has gotten far to cool by the time it reaches the exit of the system, and the air required to pressurize the system with an intake track of 3 or more meters of piping. note: small motors = anything less than 5L. The first advertised incarnation of this was for the M5 a while back i think showing good figures, but on 3.5L? no...on 3L? even more no.
dyno chart doesnt tell the whole picture. so many extra meters of intake pipes will ruin the throttle response. its why subaru's and many other cars have top-mount ICs - to keep intake pipe lengths short and good response. rear mount turbos - put your foot down, grab a feed, maybe a siesta, come back and the intake air will just be squeezing past the throttle body by then.
I have read a few articles on this sort of system before - with my old fwd astra. Its getting quite popular in the states (apparently) for stealth install reasons and for ease of install - no aftermarket manifolds, all the cars I have read about were V8 5 litre + so I would not be thinking this is too viable in a small Japanese car
I've seen a few done. The Mustang guys like it. Biggest problem is oil supply and AFM's/Air filters. You need quite small exhaust housings as Andy said, I've seen T70's with 0.48AR exhaust housings just to get a reasonable spool for a Mustang. Stock turbo location FTW. It's all very nice getting the exhaust down to the turbo, but getting back to the engine would be fun and games, there isn't heaps of room under there. It wouldn't really free up the engine bay much, not enough to do anything useful anyway...
Alright looks like I can spend my time on research into other projects, or stop wasting time on the internet and get back into my uni studies
hmm this is a weird rear mount set up, why would you have it way at the back? most of the twin turbo rear mounts ive seen have been on ls1's and the turbo ussualy just sits between the mani's and the cats. cant see why you would need to put the turbo at the VERY back of the exhaust. edit : maybe im getting low mount setup mixed up with rear mount setup.
The units I have seen ditch AFM for a map sensor or mafless tune (never seen the sense of that one) a map sensor on an aftermarket ecm is an easy way to delete the AFM. Oil feeds would not be a huge issue with a good oil pump IMO at least on the high pressure side anyway if built in conjunction with a dry sump setup the return should probably not be a big issue either. However I cant see the point for this on a vehicle that has a turbo option from stock.
I seen a 68 Camaro running low 9's at the motorplex, the owner drove it up from Bunbury or Busselton then back after the drags, it was running a rear turbo set up, so I would'nt say the set up dosn't work. Eddie
The rear mount turbo's arent a bad setup. There was a guy with a 4 cyl 2.6L TR Magna and he had a rear mount turbo setup. No intercooler since the piping was long enough to kind of act as one. IIRC he got a 14 second pass.
ive seen it on you tube on a is250 lexus hopefully this link: works <object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/SktYAwjr2aM&hl=en_US&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/SktYAwjr2aM&hl=en_US&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>
oops it didn't cut past this up there ^^^^ link: http://www.youtube.com/watch?v=SktYAwjr2aM&feature=fvw It would be awesome to do a quad turbo set up in a zed hi mount gt3071 with gt28r in original turbo position with a custom manifold to join the two with two separate boost gauges gt30s running off a Dual Stage hi or low boost switch and e-boost 2 for gt28, fmic + smic don't grill me yet just an idea ive had, can it be done ? Uploaded with ImageShack.us
You could even do a twin charge setup http://www.google.com/url?sa=t&sour...602P5PTXOKcqXvdJA&sig2=t0UlwMLPuYcEvZxAlYzrng But yes, a rear/remote turbo setup would have a stupid amount of lag. It'd be good for an NA wanting to run some boost because it's easily installed and you aren't having to modify an already TT engine.
