Buy an ATI and blow your motor up to find out!!!

 

I also would like to thank you for your presence on this forum. Vortech is the only Super Charger I am considering, and if it's not that it will be a TT kit going on my Z.

Where is Vortech based? I'm in Orange County (SoCal) and would love to see a Vortech Z in person before making this kind of decision.

Also, can we expect videos at least soon to give us some idea of what it sounds like hehehe that does matter to me too!

Waiting till you get back from SEMA...
-Dana

 

Presenting facts to someone who may not know them is not instigating an argument. I thought these forums were about presenting and sharing our opinions. Sorry if the conversation doesn't go in the proper direction to satisfy you.

I wasn't trying to be rude....sorry if you have absolutely no sense of humor.

Lighten up, Francis.

 

I asked the same question to Steve/Forced today on the phone. He is not here until Friday so I will attempt to give you the answer he gave me and if I miss quote him, he can certainly correct me when he gets back on line on Friday.

Steve told me that he thinks that the ATI might be getting tuned by the people that are getting those numbers so that it is putting out high hp but it might be more risky as far as reliability goes. He said Vortec never sets up their SC'ers to run at highest possible output but to run so they last. They will give up the 15-18 hp for the sake of making sure the motor will not blow up. Remember, he is claiming that you do not need to get the Vortec tuned like the ATI and is bolt on.

I am basing the numbers off of what you are saying above vs. numbers I have seen with ATI's on previous posts. You are using the 350rwhp estimate and it seems the higher numbers in general I have seen for ATI's are about 368rwhp. I have also seen numbers as low as 350rwhp for ATI's as well but then again we are dealing with different motors, dynos, and conditions. BTW, I really hope we get a Vortec car in the SportZ magazine comparison in December so we can move past this debate of different dyno's on different days.

Steve did not use the 350rwhp number with me, he just said they dyno'ed the Z with a stock motor for the base line, then dyno'ed the Z again with the Vortec. They then added the hp gain found on the dyno and added it to the 287hp Nissan claims thus you get the 412hp number.

So you know, Steve told me that the goal is Vortec is not to have the most hp but to have the most reliable hp. From their perspective, they tuned the SC to get 412hp. If you feel the ATI is as reliable, you might not see any advantage to the Vortec in that area of comparison and feel the added 15-18 hp gives the ATI the advantage.

I hope this helps you. I am sure more data being released from Vortec and future dynos and testing from magazines and from owners of the Vortec will give us even a better picture of these issues.

 

zland

the 350rwhp was just a guess. I am sure at this point that no one knows what the rwhp numbers are and like you said all i have read is that it is 412 crank hp. I would like to see a comparison side by side though and for the power loss it could also be that the ati has a better intercooler and intake temps are lower. do you know if vortech intercooler is a front mount or that square thing they use? thats also something to look at.

 

Again, quoting Steve per our phone conversation today, he said that Vortec usually goes with a water intercooler but that with the Z, it was too difficult and not cost effective to do so thus they went for the same type as ATI.

The location of the IC is the same for both ATI and Vortec (ft mount). In fact, if you look at both kits, they look alot alike (to a guy like me). Unlike the Stillen SC, which is a root blower and totally different, the ATI and Vortec have more in common. Other common traits will be boost increasing as RPM increases for both ATI and Vortec vs. Stillen which has full boost at low rpm's.

As far as you saying the 350rwhp was a guess, lets be honest, all hp posts have some variation to them. The same car on the same dyno on a different day (different conditions) will have different numbers. This is why I am so excited to get all of these cars dyno'ed on the same day on the SportZ comparision in December.

 

What type of fuel mangement system are you folks planning to employ? TIA.

 

The fuel management question was answered already earlier in the thread.

 

Thanks, I'll look for it and stop being lazy.

 

They are using the Vortech FMU, its not really tuneable. Which is ok i guess if they make us a custom disk for it.

http://www.vortechsuperchargers.com/...tegory_Code=FC


I have been thinking about it, and its almost time to put my Z away for the winter. So I might wait until Feb to get the kit so i can see what everyone thinks about it. Unless I can get it for a good price now, because I wont be able to drive my car through the winter.

 

what are you saying? do you have a problem with G35 drivers being here on the board? i'm just trying to get some information that's all, not trying to steal anything from you guys. we have pretty much the same engine so why not take part in the discussion?

 

Honestly it really wasn't.

Only a vague term of a "FMU" was used.

Since the 350Z and G35 have a returnless system, just a FMU simply can't be used..... I was hoping they would give a more descript explanation of the system. Kinda like when I asked, what the % factor they were factoring for the drive train loss, so we can all know what a real world rear wheel number might be.

The Fuel system must employ adding a return line back to the tank of some sort. Along with the additional fuel pump, and the FMU. Is this line braded? what size is it? Where is the fuel returned to? Do you have to drop the tank for this install? Just asking questions since, both the JoTech and the ATI kits both used the EFMU by Aeromotive.

If a return style fuel system is addapted to make the kit work. I wouldn't hold my breath to see it be CARB legal. Since I don't think the goverment is going to be hip on converting a new car to a return style system. When the main reason behind the Returnless is for reduced emissions. But who knows maybe they look the "other way" every now and then.

EA

 

 

I am fine with you guys that won G35's on the board. I suggested you search websites and ask questions just like I do so that you get answers. My350z.com is a collection of information posted by car owners in general. It is not supported by techs or paid engineers.

I wanted data on SC'ers for example. I did not want biased data only from a maunafacture or salesman thus I took it upon my own to work with car owners and contacted SportZ magazine to have them do a comparision on those products. All of this work I am doing is so 350Z owners AND G35 owners have correct information to make wise choices. There is no personal gain for me from it except for the information we all get from it.

So learn as much as you can here. When information is not availible on this webpage, go out and find it and then post it for the all VQ motor owners.

Once you post it, be ready to discuss and debate the data you provide on your post. A lot of guys here want facts and if your information is not accurate, they will call you on it (such as posting hp gains without a baseline dyno).

Sorry you felt I was some how making you feel unwelcome, Jeff

 

man i cant wait to see what this thing is realy going to be like after it is installed on a few cars.

 

Me too! My goal has been from the start:

1. 400hp at crank (easy most SC & TT kits can do that).
2. Reliable: Wait for 6 months to see if any problems are occuring with the kit. I would really be ready to buy if a motor warranty came with it but it seems that might be wishful thinking.
3. Sevice: If and when problems occur, will the manufacture and installer of these kits back their work and fix problems.
4. CARB legal: look like I will have to wait 6 months or more for any of these products to be CARB legal.

 

I highly doubt they're using a ratio based mechanical FMU. We have a returnless fuel system, which won't work with that type of FMU. I do know the Vortech kit comes with an additional inline fuel pump and the only purpose for that is to increase fuel pressure ala, the Aeromotive digital FMU which supplies an increase voltage based on boost pressures.

The only way to get the FMU you mentioned to work is to rework the fuel system will probably not pass any kind of CARB emissions review.


Edit: Guess I should've read SVTkids post. Yeah, What he said.

 

thanks for letting us join your site buddy. i've done searches and looked through forum topics for info. if you doing all of the work is there a problem with me asking you a question on it. i don't feel unwelcome and if i have questions i do ask. sorry if that bothers you.

 

It is your website as much as mine. Ask any questions you like of me or anyone. I hope I can help you and you help me...

 

sounds good