i think i made it pretty clear in my question, and i got a whole bunch of answers from people who have nothing better to do than sit here on a forum bitching at each other and fighting. did you join this site to ask questions and get answers? i know i did. maybe b/c i'm new to this site i haven't figured everything out yet, ever think about that? you guys need to get a life and instead of posting useless comments that just piss people off, why don't you try helping answer my question or just don't use the site, the time it took you all to post your stupid *** comments you could have posted an ANSWER. to those of you who tried to help, thank you, for everyone else, quit wasting everyones time

however long it took you to put this ******** you could have given me an answer, thanks a lot ****, why don't you try helping people, or find a different site

He just copied it from the last thread that asked the same question, so it didnt really take long at all.

The kit replaces the cats and y pipe.

You can reach 500whp with this kit with the different turbo options that are offered by Boosted Performance. And for the DIY guys, if you can change your own exhaust, you can install this kit by yourself. The my 350 z forum has a lot of great reviews on it.

500ponies for under 5k is a bargain.
compare it to the 7k plus that you need to buy the Greddy TT or the GTM TT to get you at 500ponies.

Anyways, have a great day bro. :tiphat:

Please do not post useless comments that dont provide the OP with a solution to his question. Thank you.

How do they protect the turbo and Im *** uming the filter is under the car and exposed? Whats the smallest turbo they use and what HP does it get. Thanks.

I'm sure the response on a turbo that far would be annoying

STS claims normal lag for their turbo setups and theirs are further down than this one.

Wow their Turbo's must be magical then, because physics wouldn't agree that's for sure

so they claim, but didnt someone else claim some things and have fallen on them?:stirthepot:

Owners of the kit have been seeing full boost at 3600rpm... It's quick!

Zsteve, im gonna pm you some info right now. Give me a sec, i need to go on the other forum and get all the info.

cool thanks

Quick vids off the other forum

You're talking about spool rpm, which has to do with the cfm of the exhaust aka exhaust momentum (which doesn't alter much from in a further down setup)

I'm referring to the turbo response, the time between flooring it and getting the kick in the back.

sounds like it goes pretty damn good. So how is the turbo protected? And is the filter exposed under the car?

Yes, it will give you a whippp lash lol
Response is good and quick (based of the reviews on it)

Let my try to get a pic... One sec, just gonna hop on the other forum.

http://http://my350z.com/forum/membe...turbo-kit.html

Sorry bro's, the forum is blocking the pics from being posted.

But to answer your question Zsteve, the filter IS protected better than the STS rear mount turbo from water and and other stuff that might be thrown your way.

a recirculating valve will help keep unused air back into the intake right where the turbo is and will help the spool time. My audi used that and it spooled at 2K.

Actually the mid mount setup is not new to turbo charged applications. Oem's have actually used it before on trucks where there is a lot more room around the transmission area to stick a turbo then there is on say a Z. An STS kit can spool by 4000 so it wouldn't surprise me if a midmount could beat that by a few hundred rpm. Turbo response is directly effected by spool time and the amount of piping from the turbo to the throttle bodies. A properly insulated exhaust front section as well as a free flowing rear section, combined with proper intake pipe sizes and an appropriately sized intercooler can go a long way to reducing the response time on one of these setups. It's all about R&D, and how well that kit is designed i can't say but i can be done properly.

To more accurately answer the OP's Question though if he is dead set on buying a stillen supercharger kit, Meth or water injection does wonders, maybe a larger a heat exchanger on the the front of the car for the intercooler, have it custom tuned by a reputable shop to make sure there is no problem there as that is the downfall of the stillen kits so far. Oh and supporting mods are good like test pipes, and a catback, clutch and flywheel (if your CSC doesn't explode) to hold the extra power, and better tires. brakes and suspension never hurt either if you have the sport brakes i suggest stainless lines, better fluid, and different pad compound as the stock sport pad material is crap. Always good to be able to bring your new rocket sled to a stop. Also think about shedding some weight you would be surprised what even 200 lbs can do for your all around performance.

headers plus supercharger...good idea, bad idea?
 

I am installing a Stillen Supercharger on my car. Word on the street is (from Stillen) that installing headers and high flow cats is a bad idea. According to them their supercharger is designed to operate with a certain amount of back pressure and that by reducing that back pressure I will lose power that the supercharger added. So my question is, is this true? Does anyone have some solid experience with this?

I apologize if this question has already been asked but much like MC Customs, I don't have time nor the inclination to sift through all the crap.

I am installing a Stillen Supercharger on my car. Word on the street is (from Stillen) that installing headers and high flow cats is a bad idea. According to them their supercharger is designed to operate with a certain amount of back pressure and that by reducing that back pressure I will lose power that the supercharger added. So my question is, is this true? Does anyone have some solid experience with this?

I apologize if this question has already been asked but much like MC Customs, I don't have time nor the inclination to sift through all the crap.

I think you are right, I have heard the same things, I would leave the stock cats and mani's one, If not just for emissions than anything else.

With LTH's, pressure drops and you lose some boost. Solution is to buy a smaller pulley to increase boost. With the headers and smaller pulley pushing the same psi as the stock Stillen kit, it will create more power. PSI to PSI, the headers will create more power on nearly every supercharged application than without... Unless the unit is undersized.

I am running stillen headers and cats with my stillen SC and making great numbers. I do not have any issues at all but I do have a custom tune. what may make a difference if you plan to run headers/cats on stillen's stock tune.

Just to clarify, its not that the LTH's or HFC's are bad its that Stillen didn't design it for those applications. On normal applications improving exhaust flow usually leads to gains on an S/C setup. Hell on my 4 banger S/C, a decat and headers will yield significant positive gains. This was my biggest annoyance with the z34 S/C platforms. You are forced to keep your stock cats which are EXTREMELY RESTRICTIVE and leave power on the table.

Other reasons why improved exhaust doesn't seem to help S/C applications is because VVEL will not compensate properly for the improved flow.

OP since you are in Cali, its probably best to leave the stock exhaust hardware on, are you going CARB certified on the Stillen S/C? If so be wary of the canned tune.

The funny thing about all of these considerations (e.g. actually adding exhaust restriction to make more power) is that the real problem is the inability to control the amount of valve overlap to avoid blowing the boost straight through the motor. VVEL is great for NA but killing us on FI applications. Just look how much more power the 350s are making on the same kits.

Just to add the above comments about leaving the stock mani's and cats on Kelly? You made 405 WHP on a mustang correct with you headers and HFC's correct? I made 412 WHP( 7 SPD AUTO) with stock cats and madifolds. Mustang dyno also. I know every dyno is differnt and numbers will be also, But just to compare I if there where true gains from HFC's and headers I would have expected to see 460sih numbers not close to mine,. BTW car looks the SH#T,, Love everything you did,

Just cause we are talking WHP doesnt mean I can like your ride :)

You will make more power with the headers and high flow cats/ Test pipes with a custom tune not Stillen tune.

RCZ proved this with 445 WHP on a dynoJet.

I aslo made 464WHP dynpjet with test pipes.

It's a vortech V3 Blower it is sufficient enough to flow with that combo. This is done on many platforms with the same unit.

I actually bought RCZ kit and made 20hp more on the same dyno so Stillen makes a good product (as well as GTM) and like everyone else has said it is just the tune because of the restrictions in CA. So it really comes down to personal preference.

Nice numbers just looked at your build very well put together car.

thank you very much. she is a work in progress have just a few more additions before a total paint job to give it a show car finish but I have to pick up another bike to have another mode of transportation before I can start that process. :ughdance:

Hey Guys,

I haven't been able to spend much time on the forums lately unfortunately as I've been buried in projects here but I wanted to jump in and add the "stillen point of view" on this topic.

We do not recommend high flow cats with forced induction. In our experience, they have a hard time living in the FI environment. We have seen Z's/G's, Camaros, Chargers, Corvettes, all different kinds of cars chew through high flow cats when used in an FI application. We basically say, standard OE cats, or nothing...

In regards to the headers. We have seen them used in conjunction with our supercharger and they work fine. Initially the concern was that there may be some boost loss similar to what we experienced on the VQ35 engines. However, on the VQ37 kit this is not the case. We have not seen a significant fluctuation in boost pressure after installing the headers.

It's interesting that OEM N/A cats hold up better to FI than aftermarket cats. I mean, with all of the factory FI cars out there, you would think there would be a supply of FI-capable cats readily available.

Thank You
 

ALL,

I want to thank all of you for your advise and help I think I decided which way I'm going to go with this. I hope to have the car finished soon... I can't wait to see what a difference this all makes. I will post pictures as soon as I can.

Thanks,

Fastlandyacht

I'll let you know about the pulley change also, Just bought mine today. Even tho the is down for the next 3 weeks or so, :(

i need a new clutch kit, does anyone have the stillen clutch and flywheel kit? if so how is it?

i also have the Stillen supercharger kit