View Full Version : Need FI Kit information

12-03-2005, 05:24 AM
I need some info on FI kits that I can choose from. I read the thread about the "ATI Procharger Vs. Vortech Supercharger" but I need more info.

I saw the pros and cons of the ATI Vs. the Vortech as well. Does anyone have pictures of either kit (everything that comes with it). Their websites don't show much. For ATI I could only find one picture and it was a picture of the Supercharger installed (you couldn't see much).

What about the Greddy Twin Turbo?

What I really want is pictures and impressions.

If it is easiest to email pics then my email is: shane.schmutz@us.army.mil

Thanks in advance, Shane

12-03-2005, 08:50 AM

I'm not an expert, but have read around alot and this one has always seemed to stand out as a solid fully complete system getting very high reviews and praise by various magazines

12-03-2005, 09:16 AM
Hello and welcome to FA - I'm thinking if you talk to Fred he can fill you in on the in's and outs of the differences - personally after looking at them all I'm thinking the stroker kit is the best bet

12-03-2005, 01:18 PM
I imagine by "stroker kit" you mean going NA? What exactly is included in the stroker kit?


12-03-2005, 09:42 PM
Hi there and welcome to the forum.

There are a lot of kits out there. When you're shopping for a SC, it's not always about the HP output and dyno numbers. You have to consider the reliability of the kits and read upon others experience with the kits. Here are some guidlines to help you out.

- SC - more simpler and less parts than TT
- Turbo's gotten better for the Z in within the last few years, but still some lag is still evident
- APS Single Turbo kit - great gains in low/mid range without the lag, but the kit is very new
- Vortech - the kit I'm going with, as soon as I'm less poor. Very dependable.. there are plenty of shops around me that have installed them. I have yet to read about one blowing up an engine
- ATI - I've read about 2 engines blown, right off the bat and other complications. But that was few years ago and maybe they've improved?
- Turbonetics - fairly new kit, relatively speaking, but I've heard good stuff about them
- I personally read a lot of engines that were blown by the Greaddy TT
- HKS - Haven't heard much issues with these

Turbo kits are a lot more expensive and take more TLC to maintain. Also, these are very general guidlines to help you get started and by no means you should take it too literally. Good luck!

12-03-2005, 09:47 PM
Also, unless you are filthy rich and money's no object, I wouldn't consider a stroker kit. It cost $8k. AEBS is the only one I know and it comes with connecting rod, piston head gasket, crankshaft etc.. and trust me.. if you can afford the stroker kit, you'll be tapping on your veins and going FI later to feed your mod-crack habbit.

12-04-2005, 10:36 AM
I'm not filthy rich I've just been deployed to damn long. I can afford the stroker kit but it sounds like a pain. I'd rather just buy an engine from AEBS if they have one pre-built with the stroker kit. Is this option available.

Anyhow, I'm going FI for sure. I just haven't decided what kit I'm going to go with or if I want SC or T or TT.


12-04-2005, 11:20 AM
I'm not filthy rich I've just been deployed to damn long. I can afford the stroker kit but it sounds like a pain. I'd rather just buy an engine from AEBS if they have one pre-built with the stroker kit. Is this option available.

Anyhow, I'm going FI for sure. I just haven't decided what kit I'm going to go with or if I want SC or T or TT.


Hey Shane -

I remember Fred telling me about you - your from the V boar with the 12 sec sentra - I ran a 13' N/A all the way - welcome!

I have to say that from what I understand there is only one guy with the stroker and fi on his engine and he is turning four digit numbers - if your really interested in making big power - the stroker kit is the best place to start - personally because it takes advatage of what the engine was designed for - which is big n/a power - not forced induction - one of the benefits with doing the stroker kit is that when and if you do decide to go with force air you won't be limited by your engine internals - i'm trying to convince fred to do the kit - i even offered free labor http://forums.freshalloy.com/images/graemlins/smile.gif

12-04-2005, 12:15 PM
*sigh* having a stroker kit will be beautiful http://forums.freshalloy.com/images/graemlins/tear.gif
Maybe down the line, I'll cut corners and replaced the weak components of the z, only. The connecting rods and pistons (which only have a threshold of 360whp) and keep the stock crankshaft (stock ones can hold up to 700 rhp). oh well.. I'll worried about that when I 'can'

12-04-2005, 04:13 PM
Fred's Z was dyno'd at 411 whp, he is running stock rods and motor parts (and is the orig engine, not the rev up)... so you can push the engine quite hard and be safe

12-04-2005, 04:33 PM

The stroker kit is very expensive and (as the name implies) strokes the engine to 4.3L.

You <can>, however buy "built-up" engines with stronger internals for much les money.

They Just arent stroker kits neccessarily (except when high$$ opions are considered) but much stronger internals with lower compression pistons to run more boost.

This is one source for built up engines, thats generally well-liked:

Fred.. http://forums.freshalloy.com/images/graemlins/smile.gif

12-04-2005, 10:36 PM
and besides... you bought a 350z not a 430z lol http://forums.freshalloy.com/images/graemlins/cool.gif

12-05-2005, 02:30 AM

Yeah, I thought I remembered seeing your screen name on the thevboard. Yeah..... 13 is pretty good N/A. Wow!

Anyhow, now that I've looked into the stroker kit more I won't go with that. If I upgrade the internals than I'll just upgrade the pistons and rods.

I'll look into that link above.

Thanks guys.


12-05-2005, 02:51 PM
that certainly is a cool link that Fred put up -I didn't know about it - good luck and keep us updated with all the work you do -


12-28-2005, 02:04 PM
I think the biggest thing to consider is the the affect of any FI kit on an '06. That engine is similar to the '05 with the REV-up variable timing and specific cams and intake plenums. Not every kit is compatible with the '05/'06 yet. Thats not to say the won't be and with that in mind, you have these options...

Roots style blower
Stillen is the only choice, but their kit is supposedly the easiest to install (sit on top of the engine and replaces the intake plenums) and provides the most low end torque. Its CARB legal and there is a 3 year engine block warranty availble with it. Peak output is the lowest with most people maxing out around 325 whp with stage 2/3. There is a stage 4 thats supposed to be available but will not be CARB legal or warrantied. If you want to keep your warranty, this is you best option as a lot of dealers are installing the Stillen as a dealer accessory. Downside is Stillen requires a new hood.

Centrifigul Superchargers
ATI, Vortech and HKS all have systems out. They all suffer from the same downside of peak boost is not made until the engine is at peak RPMs. However, they are relatively safe on a stock engine when left with the out of the box tune. A lot of people have tuned the systems (HKS is not as tuner friendly) to make up to 400whp. The systems are noisy, but among the most inexpensive options. Vortech is highly popular and is regarded as the best bang for the buck.

Single Turbos
APS and Turbonetics both have kits. Both will be good for 350+ whp out of the box and can be tuned for 425+ whp. Once you break the 400 whp threshhold, you'll really want to consider a built engine if you're going to push it much over that. The tune is the key ingredient, but you are reaching the limits of the engine. APS is the most complete out of the box and great if you want to install and go, Unichip is hard to find a tuner for and the downside to APS. Turbonetics is more tuner friendly, but needs additional parts for tuning. Some people don't like the APS ST because the turbo sits low and by the downpipe under the car, while the Turbonetics kit sits high and in the engine bay.

Twin Turbos
APS, GReddy, Power Enterprise, Speed Force Racing, and Jim Wolf Technology all have TT kits out or being released shortly. None are CARB legal, though JWT is working on it and APS is supposedly designing a CARB legal version of their kit. Each kit has varying levels of completeness, APS is the most complete out of the box, GReddy is the least. APS is hard to tune because of Uniship and GReddy probably has the most potential in the hands of a skilled shop. JWT's kit has been getting a lot of positive reviews of their initial units that have been installed in test cars. Any kit can make 500+ whp with the proper tune and supporting mods. The key is to make sure your engine is properly built and a good install / tune is done. All these kits with install and tune on a non-built engine will run you around 10k.

Good luck and let us know what you end up with!

01-02-2006, 11:14 AM

Great Summary!

Fred.. http://forums.freshalloy.com/images/graemlins/smile.gif

01-02-2006, 01:17 PM
Don't forget though, that for the Rev up motors, there isn't many choices out there for FI just yet. Vortech won't fit, many turbo kits single and twin won't fit either, due to the way the front cover of the motor is designed. the Variable timing cases stick out too far on a rev-up motor for most FI kit piping to clear. Then on top of that, you have to tune the piggy back fuel/timing controllers much differently on this motor than the normal 287 engine, and most companies are still playing catch-up with regards to this. There are some people customizing things out there though, with some custom tuning and doing very well. Give it a little more time, and the companies will have plenty of revised kits out there.

01-02-2006, 01:19 PM

Would you agree the potential on the rev up motor is much better for standing up to FI ?

Fred... http://forums.freshalloy.com/images/graemlins/smile.gif

01-04-2006, 09:30 PM
FYI....The JWT TT kits are completely compatable with the '05, and even the '06 Z's and G35's. We have installed a few of them. They fit, work, and feel perfect. http://forums.freshalloy.com/images/graemlins/smile.gif