Rear Mount Turbo
 

Just wondering if anyone here has tried it. Im considering trying this in a few weeks, just need a big enough turbo. I figure it cuts cost because theres no need for custom manifolds. I figure mount the turbo just before the catalytic converter have a seperate oil reserve rather than tapping the oil pan, and it should be easy.

Any insight anyone?

Re: Rear Mount Turbo
 

With the money you save from not haveing to by a HF mani + adapter plate, you'll spend double that for the stupid oil return pump.

The traditional mounted turbo is more efficient [/thread.]

Re: Rear Mount Turbo
 

It has been done here before, as far as cost savings I think it would only cut costs on a vehicle that doesn't have cheap turbo manifolds readily available.

Re: Rear Mount Turbo
 

what car?????? I would not do it on one that is routinely done the traditional way.

Re: Rear Mount Turbo
 

look at the pathfinder in the member projects :y

Re: Rear Mount Turbo
 

This would be on a 97 maxima, i've seen it done before an the cost was about 1600, its the oil system that does add cost. Any info on doing an independant oil tank and return system is a big help, thats one area i dont know much about. Also the intake manifold is confusing me, im obviously new to turbos and im trying to figure out how to connect to it. Do i just get rid of my intake and connect the charge pipes to the throttle body? Wish there wa some sort of diagrams to show this better.

Re: Rear Mount Turbo
 

Depending on how much boost you run you will need an intercooler and a bov somewhere in between the compressor outlet and the throttle body. You need to do some reading on Maxima tuning too cause you will need some sort of fuel management. Do some more reading on this site. check out other projects etc...

Re: Rear Mount Turbo
 

Im a member of maxima.org, and as for management i'll be using greddy emanage ultimate, and an electronic boost control. Biggest problem right now is finding a turbo(new) small enough to mount in that area but large enough for the power i need. Im trying to turn a 190hp engine into a 350+ hp engine, in a limited space. Also as i said i'll need to figure this whole oil cooling thing out. Im thinking about picking up one of those fuel tanks from jegs, and an oil pump mount both in the trunk and cut holes in the floor for the lines to run to the turbo. Is that theoretically possible, using a small gas cell, the drag racing style ones, as an oil reservoir? Intercooler i've been told by like 20 people should not be used with this car, ecspecially for smaller turbos. As for right now, im just starting to look at welders, i've got a lot of practice to do before this project!!

Re: Rear Mount Turbo
 

Smaller turbos tend to blow hotter air because people run them out of the efficiency range making it more neccesary for an intercooler. To make numbers in the 350 range you will definately need an intercooler. E-manage is ok but if I was gonna spend that much money I would get an AEM standalone. As for the turbo I would use the oil pressure from the engine for the oil feed. And use some sort of pump to assist the return oil back to the pan. Or just do a conventional setup. :y good luck

Re: Rear Mount Turbo
 

i have a friend with a AEM standalone for sale cheap i dont have the extra cash for it or i would buy it myself i dont knoe=w for sure if it will work its off an integra b18 and i never really read up on that so if interested let me know!

Re: Rear Mount Turbo
 

I would think if you tried a separate oil system, you would need a way to cool the oil.

Re: Rear Mount Turbo
 

I'm staying away from a stand alone unit. For the money, I'm set on the e-manage. I'll put in a 255lph fuel pump, 370cc injectors, a universal FMU, and the E-manage. Some ebay boost controller, and timer. The turbo will probably be a t3 .60ar, not sure on specific brand/model. So i don't know how hot something like that will get but I've heard RMT's don't need an inter cooler also because the charge pipe is so long it helps cool the air.

Re: Rear Mount Turbo
 

It helps, but not that well. The way intercoolers cool so effectively is by splitting the air into multiple paths, all of which have lots of cooling surface - all those fins. Hoping air will cool the charge merely by running over the charge piping is like running an air-cooled engine without any fins. Or fans, for that matter. Just intercool it.

Or better yet, just do it right and mount it in the engine.

Re: Rear Mount Turbo
 

Lol, whats wrong with being different. I dont mind everyone on here doing things the ol' fashion way but lets think outside the box and try new things. For civics it aint to hard getting turbo manifolds, but for a maxima they dont exist and im not spending 800 dollars to have em made up. I can weld the turbo rear mount myself and i wont cost anything.

Re: Rear Mount Turbo
 

well if you can weld a rear mount your self why not weld a traditional manifold ::) Why overcomplicate something to be "different"

Re: Rear Mount Turbo
 

I dont even know how to join the two manifolds, unless i just run the turbo off the front manifold...actually...that might not be a bad idea. Im not boosting too much so i shouldnt need to run it off all 6 cyls. Any input from someone who could tell me how the two manifold are typically joined?

Re: Rear Mount Turbo
 

Adapter plate, ie 3/4 thickness steel plate with a 4 bolt pattern for your turbo to mate up to, find a way to weld it onto the header if possible and make it fit. another option is to flip the headers at the flange to do a top mount turbo allowing you to possibly get all 4 cylinders.com

Re: Rear Mount Turbo
 

WOW i felt my ------- brain rotting as i checked out that maxima.org website, never have i seen so many ------- automatic, nig painted interiors, intook-headaz-exhost, nos floormatted, ill minded equipped people in my life. I instantly wanted to make a massive donation of ropes all to this maxima.org website. Even more after seeing this one dousch that i have seen try to stunt so ------- hard everytime im down at the races in kent. http://forums.maxima.org/showthread.php?t=509465
It makes me proud to be at a site where bang for buck is always the first thing in mind.

Re: Rear Mount Turbo
 

Ye i agree they are very ricey there, they dont care about hp, just looks. Only reason im a member there is for tech advice on repairs. Why do you think i came here for advice on a turbo? As for my car, its stock outside, mad pimped inside, i decorated the back seat with like 20 college books and a few jackets.

Re: Rear Mount Turbo
 

;D

Re: Rear Mount Turbo
 

im running a remote turbo. i have a t3 where the muffle was took a day to fab up every thing and make the flanges and it was all make from scrap and spare parts so there was really no cost but the welding wire

Re: Rear Mount Turbo
 

ok you do know that a 300zx tt mani will fit that car with little to no mods my friend aaron is doing one like that his is a 97 maxima ill see if i can get some more info on this but he told me they fit perfect!

Re: Rear Mount Turbo
 

clwtwizted , pics or a web site with pics, i'd love to see the setup.

BoosteD_90_DX, please do find out from him how he did it, if its really that easy i might get off the rer mount idea.

Re: Rear Mount Turbo
 

No it won't, ------. In the brief moment in my life where I was thinking of buying a Maxima (kill me), it was glaringly apparent that everyone said that the TT manifolds would NOT bolt up. What are you going to do, mount the turbos outside the fender? the 300ZX is RWD, so the manifolds travel alongside the engine, not under and to the side of it.

Re: Rear Mount Turbo
 

The turbo is a junk piece of ---- out of volvo. the seals are blown and leaks oil. the turbo is cooled by a gravity fed resivour and burns the oil off as i drive i have put on 4500 miles and only gone threw half of it. full boost at 4k 1 1/2 exhaust straight and the bends are 2in to keep the air hot and dence. yet free flowing. this was all built out of ---- i had laying around and was made out of wanting to try something with out any expectation. it works great if you dont like it lick my hairy sack bitches
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Re: Rear Mount Turbo
 

damn, daddy like.....I would think there would think that this company might be a decent solution to a self contained oil system...

http://www.rbracing-rsr.com/oilsystems.htm



looks real solid.


NO air filter....---- that ----.

Re: Rear Mount Turbo
 

So your feeding it with a gravity feed, but then hows the return. You dont have any type of pump on the return? And if its gravity feed that means that even with the engine off its feeding oil, i'm so confused, how the hell did you do that and not have it flood the turbo with oil? Im liking the ghettoness, whats in it as for fmu, boost management? Or should i not ask, lol.

So all you've done is put a tank in the trunk with a line to the turbo, and a return line(im assuming with a pump?), and you let it do its thing, no timer or nuthin. Typically how much pressure does the oil in need. The out is pretty straightforward, you gotta get the oil out of the turbo before it becomes overflowing with oil, so more pressure "out", or volume atleast, is needed than "in". But im still going to use a timer, and some sort of anti backflow valve in the line so when i shut off the car oil doesnt creep back down into the turbo, probably a float valve of a sort.

Re: Rear Mount Turbo
 

Seriously, go look at the turbo nissan pathfinder on this forum (named "so I turbo'd my pathfinder, y0!"). The pump he used was like $60 on ebay. As for the setup above - he says it burns if off, as it it has no return. In other words, he's doing the stupidest thing you have do with a turbo - run unpressurized oil that has to leak out and burn up in the oil passages, clogging/coking up as it does so.

You can also go to HT if you wear a condom, and find the rear-mount CRX that's in the fab or turbo forum atm. He has some info listed on it that shows rearmount isn't as bad as people think.

Re: Rear Mount Turbo
 

Whats the website for HT, im new here not too familiar with all the lingo. I'll check out the crx once i figure out the site.