Okay I know this is going to sound stupid, but are there any cars out there with both a TT and a super charger installed? What kind of resources, cash and time would go into a project like this?

 

Any 350Z's...as far as most know...no.

Any cars? Yes, it's been done before. Could you do it with the 350Z? Doubt it, not enough room in the engine bay. Only thing I could think of is to use the Stillen s/c.

 

Stillen And single turbo like the APS would work just fine, although I don't see why you would want to ruin the turbo setup...

 

It is referred to as compound forced induction. I have seen it on a an MR2 and on a B18C in an Integra. Made huge power....but tuning it was the major issue. It is usually a single turbo combined with a roots type blower.

 

Interesting, it was something I wanted to eventually attempt, but from the sounds of it, not practical. Not sure if TT or SC is the way to go ultimately, but I recall someone on here stating that a Nissan engineer said to go with a SC instead of the TT...any one remember that?

I'm also curious if anyone on here has a super charger put in and how it runs... Any one had experience with both (not both of them at once in the same car), in a Z or similar car and want to comment on which one was better?

How quickly did the SC kick in over the TT and vice versa?

I have much to learn... *sigh*

 

IMO, a waste of time and money. I don't think the actual seen benefits outweigh the potential problems.

 

Its called a twincharger. It does not work well in high HP applications, because it is heavy and redundant. I believe Nissan had a successful twin-charged compact car, but it was designed for fuel efficiency, not power.

 

Very, VERY interesting stuff here. Thanks for the replies...but what do you all personally recommend, would you go with the SC or TT? At this point, I'm thinking the twin turbo, because it creates power but the sound of a spooling twin turbo is really cool - but that's just me. Again, I recall someone stating that in his chat with a Nissan engineer, the engineer said a SC is the way to go...

Not to be annoying or anything, but aside from researching this stuff on my own, it's nice to hear what fellow Z heads think.

 

There have been a few guys on the boards who have done the supercharger route and then sold them to go TT. Maybe that says something.

 

Heh, figures an engineer for Nissan would pick something that won't make as much power.

On the Z, lag hasn't been much of an issue IMO. Most turbo kits spool at around 3000-3500rpms.

 

I went with a s/c because I don't really want anything over 400hp....See I am not going to build my motor. I just can't see spending so much money to end up getting pennies on the dollar for my invesment.

I did not see the point in going twin turbo and paying several thousand more on the kit and install verses the s/c route and getting comparable hp. There are several Vortech guys on this site in the 370-410hp neighborhood. Maybe if APS or Turbonetics single turbo would have been available for my car when I bought my s/c I might have paid a little more and bought one of them.

If you don't want more than 400hp a vortech s/c could get you close and be a lot less expesive than TT. If you want to build your motor and run serious boost go TT. Just my opion though.

 

here is what i think... my $.02

If you want to go with a SC and a TT, or twincharging...

First you need to drop the extra weight you created somewhere or there are no real benefits... even though the SC starts boosting faster...

You also have to develop a way to evenly set up boost pressure or something will definatley fail... you cant have an 8lb SC and a 6lb turbo for example... they would both have to evenly develop pressure along the rpm band... which would be pretty difficult but probably easier going with the SC then swapping turbos to find the right size to boost development... otherwise youd have forced air going into one of the other FI compartments..

sound right?

 

In the mid 80 there was a production car running both sc and turbo called Lancia S4. Sc was utilized to get low end torque before the big turbo kicked in.

 

was there some kind of valve that disengaged the SC on that car once the turbos kicked in? or was the SC able to continue developing boost as much as the turbo did?

 

I'm not sure but i think they used a clutch to disangage the sc when turbo kicked in. I've read somewhere that the dev team had a lot of trouble getting the sc to turbo switch work smoothly.

 

there we go... thats what i was thinking...
heres the issue you need to overcome for anyone who wants to do this.... and the extra weight added issue... if you can get those to figured out... it probably be pretty nice... accepting the fact that its going to cost a fortune.

 

Yea it would be really nice to have both - I think I may eventually get the TT since I want to get up on the higher HP. I was talking to a friend about the whole modding thing and he was telling me that in addition to the TT or SC, whichever I get, I'd have to get a lot of other things to cope with the added power. Obviously I'm a n00b at the technical stuff right now since I'm just getting into it, but for those of you running either TT/SC, what additional components did you have to impliment?

** Edit - What components are REQUIRED when installing a TT/SC respectively and which ones are optional for better performance, if any?

 

It's not just about the high HP here guys. It's about the kind of power you want and how you want it delivered. Example.. I have a centrifugal blower type (Vortech) and I absolutely hate how late the power comes on, and the lame torque curve. I want immediate power and torque at 3 grand, not 5.5 grand. Therefore I am going to get rid of the blower and get an APS tt when it comes out. It is much more stress on the motor to have that much torque at 3 grand but tuned correctly it can be done.

 

Within complete safety? I've been warned about botched TT jobs ... From what I understood in your post, I'm going to guess that there are different ways/parts to take to achieve different levels of power, delivery and intensity, is that right? I guess what I'm trying to figure out here is whether or not there is a set of standard parts that MUST be put in with a TT to integrate it into the whole engine system - or if it's a gray area of customizable arrangements of parts, or lastly if there is a standard set of components and then you can add more little things here and there to smooth the whole thing out and make it run more efficiently. I hope that makes sense...

 

I have had both on my G35 coupe. TT is the way to go.

Narkotic hit the nail on the head. I could not of put it any better myself. Rich