rear mount turbo on 350z

[samej82]

I've seen some clips on youtube, heard some things here and there. But haven't talked to anyone with personal experience with it. Has anyone in Nico ever done a rear mount turbo kit on a 350z? I've seen some posts in the other sections, but not on the 350z... What size turbine would you go with to keep the lag down?

[evildky]

with all the standard single and twin turbo kits on the market why would you want a rear mount? if you're building form spare parts sure why not but if you want real dependable results stick to the kits, and keep in mind the more piping you have the more pressure drop so a standard turbo will be more efficient as well as a heck of a lot easier to plumb, for one you won't need an auxiliary pump to return the used oil

[samej82]

That's true. I've been hearing pros and cons for both systems. Is there a twin-kit available for the HR motor, I haven't been able to find one. I wonder if any are waiting to debut at this year's SEMA show. From what I hear thought, seems like people are hesitant to build a kit for this motor, some forums say that the new HR internals wouldn't be able to handle boost pressures like the DE. While other forums mention that, with the Nissan 370 coming out in 2009, it wouldn't make sense to build a kit only for those cars produced between 07-08, but I don't know. I do know that the STS rear mount kit, is listed to work with HR. Some pros i've heard was that the rear mount were less expensive, and that if you have a proper size turbo, and piping the lag wouldn't be that bad, power gains i hear was about the same, and your emissions don't get messed up. But IDK. Thanks for the input though, there was some valid points worth considering, I don't want to screw it up

[JeromeS13]

I've actually heard lots of good things about the STS rear mount setup. There are NUMEROUS threads on other Z forums. You do have a bit more pressure drop, but all of that piping up to the front actually aids in cooling the air charge. Couple that with a FMIC and you've got some pretty cool air going in. It also sounds pretty badass when it spools up, because its RIGHT there in the back. Also, install is SOOOO much easier. I've seen quotes of $500 to do the install from a VERY reputable shop.

-Jerome

[NSRsheets]

I don't think that the 07 has a kit out yet, at least not that I've seen yet. I'm just going to stick with a normal engine located turbo or s/c kit when I get one.

[TheHat]

greddy claims to be debuting their turbo kit for the HR motor at the end of the month at sema. As for what others are saying about the HR being able to support boost, this is just a myth, why would a car with a damn near built motor not beable to support boost especially when its the same motor that is slated to be in the GTR according to photos. Just some food for thought.

[samej82]

I just got a call from STS this morning. I couldn't believe they actually make phone calls, that was pretty impressive. STS says that the kit they have right now isn't entirely a bolt on application for the 07 HR. It needs some slight modification. They are recieving a roadster version of the Z with the HR kit, expect a full bolt on kit around December. The price for the whole kit should be around 5k.Yah I can't wait for the skyline to come out next week, it'd be great if they used the motor, would mean high level of support from Nismo and parts galore, enough to forgive the current drought we're going through now haha

[trev0006]

sts turbo's are too loud, I like the turbo sound but they sound crazy.discount tires motorcycles RC planes fast cars
Modified by trev0006 at 12:28 PM 9/12/2009

[evildky]

I didn't realize there was an off the sheft rear mount available, I'm sure it works well, but if I were building a 350z, I'd personally build an earlier car with a larger single turbo, less parts=less drama

[NSRsheets]

My FI will either be a single turbo or a s/c. Twin turbos are cool, but cost more than I want to spend.

[C-Kwik]

The problem with rear mounted turbos is there are no turbos designed specifically with such long distancs between turbo and motor in mind. The loss of heat between the motor and the turbo results in less available heat energy. Since the compressor side would be requiring about the same amount of turbine torque, the turbine would have to rely more on pressure and airflow and less heat. This means, more backpressure on the motor. While the system will work, it will not be as powerful/efficient as a more traditional set-up. It is a cheap way to turbo a car, but can be pretty limiting in the end. I also can't imagine that their claims that the long compressor pipes negate the need for an intercooler are legit. Certainly, there will be some heat that radiates from the pipes, but without consideration for ambient airflow around the pipes and overall mass, it would be hard to imagine it would be as effective, particularly during extended periods of boost with relatively little non-boost time like you might find on a race track.

As for the HR, I don't know the answer to the question of strength specifically, but the rods would likely be stronger overall as the HR was designed to rev higher. Higher revving motors for a given bore and stroke have higher tensile and compressive loads. Typically, tensile loads will be given more consideration in most motor designs, so if they account for the additional tensile load, the rods may naturally be beefier. The same would likely be true of the Rev-up VQ35DE over the standard VQ35DE. There are many other factors though, so until someone can validate it one way or the other, even through confirming actual changes in size of the parts and such, it's all speculation...

[TheHat]

I just talked to the poeple at STS about their kit...they told me the same thing whole kit will be on sale for about 5G while I was on the phone with them they asked since I have an 07 with the HR motor if I would like to send my car to them to be one of the two or three cars they they are using for the proto type kit. My question to you would be should I do this or not. I think it would be cool to sport a kit that hasnt even hit the market yet but it just makes me nervous to send my car to have a prototype turbo kit when I cant be with it. What should I do, help get a turbo kit out there quicker for the 07s or just wait until they start coming out by themselves?

PS. I dont mean to steal your post just figured since it is along they same lines I would ask the question

[NSRsheets]

As long as they fix anything that goes wrong with it and give you a discount on it I say go fr it, but that's up to you.

[samej82]

yah I think so... you get 500.00 bucks off discount and your installation is free. Plus, all the gurus are there to make sure it's going to work right. make sure they won't leave you dry though if they blow your motor during testing or what not (highly doubt)

[samej82]

Do you think you'll be able to take pics and vids? I can't wait to see some pics and videos of the install and tuning process. That'd make a pretty sweet post!!

[TheHat]

I figure I will call them tomarrow and get all the details in terms of how it would get shipped and what not, and definatelly find out what would happen if they blew my motor in the process. I dont want to pay money only to recieve a car with a turbo that wont run. If it sounds good I will send them my car and create a second post to tell everyone all about it. Kind of sad to think that I might throw away the warrante when I only have 4k miles on the car. Then again 400hp sounds better.

Thanks for your thoughts everyone

[NSRsheets]

Keep us posted on what happens.

[stlxsr]

With all the options to put 1 or 2 turbos in the engine bay of a z, I don't really see the point of remote mount besides being unique. I've heard alot of arguments against the claimed effectiveness of their replacement for an intercooler (long pipes). Seems like a good company though and the fbody/gto applications seem to turn out great.

[TheHat]

They do intercoolers when they need to. They messure the amount of cool they get from just the pipes and then if they need more cooling add a smaller intercooler to get the rest of what they need. When I talked to the guys over there yesterday about the appointment to turbo for my car and they said they are a little backed up because of cooling efficency problems they were having with a z06 c6 vet and have since designed and redesigned intercoolers to increase cooling three different times so it was perfect. In the end they said that they try and get most of the cooling done in the pipes so that if they need an intercooler they can use a smaller one to acheive the same cooling as having a big one like you see on the greddy kits and what not and supposeably it makes the piping much less complicated. To me that sounds like a translation into greater airflow effiency because of fewer bends in the pipes. Well for those of us with dual throttle bodies this may actually workout to be an easier system to use since it would require less pipe engineering which would normally translate into greater reliability. As they say "keep it simple stupid", but they also say "if it aint broke dont fix it" but all of us around here seem to be fixing the none broke stuff so its still up to whatever the person wants to do I suppose. But isnt part of modding your car to make it unique.

[samej82]

[page02wrx]

Isn't the APS single turbo kind-of remote located?

[NSRsheets]

I's still in the engine bay though. I still think it's better to have one in the engine bay.

[TheHat]

Okay so here is the latest. I was going to do the proto typeing for the 07 kit but after finding out how much it would be to simply ship my car to utah my buget got tapped out. All total to get the kit installed and back to me it was going to coast somthing around $8000. Which in the bigger picture doesnt seem that bad for a turbo kit but I just cant see spending $3000 on just shipping alone. That makes up almost half the cost of the kit. So I desided against it. I know that this makes me look bad for saying I am going to do it then backing out but my budget is only so large. Damn those automotive shipers and my college tuition.

[samej82]

that's expensive... i know my friend got his car shipped from SD to MD for 300 bucks. Oh well. Did they say they would fix something if they broke it when they tried installing it to your ride? Or were you going to be SOL?

[NSRsheets]

Wow. To ship the 240 from Washington the state to Ohio it only cost me like $700.

[TheHat]

Well for me its around 1200 and up shipping each way from fl to ut. But thats besides the point. STS said that when they get the car if anything goes wrong with it they fix it. But they said the chances of that happening are almost non-exsistent since they keep a close eye on the car the whole time its in there. In their words "We don't want to waste time doing an engine swap because we blew your orginal motor doing the build. We want to do it right the first time." So in short the break it they fix it.

[AZ350Z]

My shop in AZ installed one of these 2 weeks ago on an 03 Z.

The customer paid $4350 for the kit with the intercooler and UTEC included.

I will post some pics for you guys in a bit.

For the money, this is tough to beat. We installed it in a day and when we test drove it were impressed. Boost kicks in right at 3500 pm and I would guess the kit added a solid 100hp.

No dyno yet, customer couldnt afford it.

[AZ350Z]

[samej82]

nice.. I heard there's very lil boost lag, as well as improved fuel economy. Do you know if that shield around the air cleaner wraps around it fully? From the pictures it doesn't look like it. Was it installed backwards? cause it looks like water spray during forward motion can still get it wet. That's one negative i think about the system, the risk of hydrolock. I guess it's good if you live someplace that doesn't see much precipitation. I've seen the twin STS kit for the z06 corvette, they hide the air cleaner way up high right behind the tail lights. I wonder if someone could do that with the Z.

Thanks for the post and pics.

[AZ350Z]

nice.. I heard there's very lil boost lag, as well as improved fuel economy. Do you know if that shield around the air cleaner wraps around it fully? From the pictures it doesn't look like it. Was it installed backwards? cause it looks like water spray during forward motion can still get it wet. That's one negative i think about the system, the risk of hydrolock. I guess it's good if you live someplace that doesn't see much precipitation. I've seen the twin STS kit for the z06 corvette, they hide the air cleaner way up high right behind the tail lights. I wonder if someone could do that with the Z.

Thanks for the post and pics.

No, it doesnt wrap around...that is the way it is supposed to bolt in. I share your concern, it is however a good 9-10 inches off the ground on the car with stock 17 inch wheels.

There really isnt anywhere else to mount it. The customer ordered some new piping from STS and we intend to fab up a full shield for the filter when it arrives.

Any questions on the kit, feel free to PM me.