If this picks up a full psi of boost then that is around 18whp. Pretty dang good power to dollar ratio. :driving:

Got a bit of a left field question.

For those running a boost gauge, I presume it also reads vacuum.

What mmHg do you see at idle when the car is warmed up?

Please post your BPV model as well.

I'm seeing about 18 mmHg of vacuum at idle and when warm with a Turbosmart Kompact (Blue Spring + 25mm Inlet/Outlet, soon to be 34mm). Just curious what others are getting.

Mine sits on -21/-22 using the TIAL valve that came with Topgunz kit.

Is that definitely when warm?

And where is the vacuum source? For example, I'm using that tiny port that comes off the runner for Cylinder 1.

Yes definitely when warm at the normal idle while stationary and it's taken from a connection tapped into the Stillen inlet manifold.

So is mine, but specifically off that tiny port off the runner for Cylinder 1.

I'll look up the email if I still have it to be sure, but I queried Sebastian on what normal should be and his response was -19 to -24

Mine sort of runs that range. -21, -22 is more or less the norm but when things are really warmed up can see -24. I have a spare BOV and have been curious to swap it and see if it makes a difference. Will be changing again though when Topz kit gets here so haven't bothered with it.

Same outlet as you guys, tee'd off the reference line.

Need to fix a faulty relay/fuel pump that died on me last night on my way home first though otherwise it will be sitting just shy of zero no matter what!

Tbatt....Did u make this kit because of ur belt slip? Did u get an increase on boost? Any Pros or Cons...or just Pros?

Upgraded to the Tial and got the new 60* piping from Topz....Much better fit and a big improvement to the kits design....fits like a glove with no fighting the 45* coupler to the Volute. Thnx TopgunZ for the upgrade. The Tial is amazing....here are some pics....


http://i77.photobucket.com/albums/j5...403_230217.jpg

Top view of the volute to new coupler angled to the 60* pipe

http://i77.photobucket.com/albums/j5...403_230237.jpg

Bottom view of the 60* going to blower http://i77.photobucket.com/albums/j5...403_230256.jpg

That Tial Though...
http://i77.photobucket.com/albums/j5...403_230316.jpg

Looks good!

Might want to face the tial the other way. The air coming out is very hot and will heat up your intercooler.

I was and still have a low boost problem. One idea was the belt was slipping and sure enough, when I took a temperature reading of the drive pulley it was about 50 degrees cooler after installing the additional idler which means the pulley was heating up due to slipping. I picked up some boost but the main problem is that I need to install the volute at a better angle. Right now I have a 90 degree elbow at the SC outlet and I think that is what is restricting the SC.

I was one of the first to install the A2A kit and did so without the instructions. By the time I had the instructions I was too far along to go back as time was running out on my build. This June the plan is to get back to work on the car and fix the volute position and also go to the 60 degree coupler and 2.75 downpipe along with a Tial BOV. I'll also be doing some improvements on the fuel pump. Got a bunch of CJM stuff to install:tup:.

After that I hope to finish up with Seb on the tune. The car runs and drives fine but the boost is still below 8psi and I'm running the 9psi pulley.

I've been reading up on SC and it seems that TopZ is correct in his design of his kit. SC do not like abrupt air flow changes at the intake or exhaust ports. It screws up the flow and can cause back pressure issues (what I'm pretty sure the 90 degree elbow is causing). TopZ design of using the air filter directly on the SC allows for a good straight shot into the intake and the original 45 degree coupler on the outlet does a good job of keeping the flow as straight out of the SC as possible given the room to work with.

Ok, guys. I've been getting lots of inquiries about the kit so I have stuck my neck out and ordered enough to do four kits. I'll make the spacers this Friday and the rest of the parts should be here early next week if not before. The cost per kit is $160 plus shipping.

This may seem like a lot for what it is but the parts are expensive and the time to source everything isn't free. The nice thing is that you won't have to scrounge all of this up, you will only have to open a box and install.

I found a source for SS 12mm bolts so that is what the kit will include. Only the best for our Zs.

Damnit, I spent over half a year trying to find a pulley spacer for the 54mm pulley. I eventually had to get a machine shop to custom make one...

Not sure if someone asked this before, but any tips on cutting the extra rib off that belt or do I just take a utility knife to it?

Yes, you can do it with a utility knife. Just use a new blade and make each cut about six inches long and about 1/16 inch deep. It will take several cuts to get all the way through. The HD belt is tough!

I'm working on a design that will cut the rib off on my lathe so it will be really clean and straight.

It doesn't. I'm probably the cheapest person on this forum and that seems like a deal. :tup:

I would have gladly paid for it, so I wouldn't have had to go to 10+ NAPAs to find out that no one knows what a pulley spacer is :shakes head:

The first pulley I bought I had the twenty questions to go through at the counter, "what car is this for?". Then, you are using for this for WHAT? Take them out to the parking lot and open the hood and the HOLY ****! reaction. Made my day!

And yes, I was tired of going here and there to get maybe one part and then having to special order the parts too. I'm just trying to make my and your life a little easier.

Haha, well I kept skipping that step and told them it was for a Mercedes-Benz GL350 because their website showed that the part is compatible with that car.

I only had one shop know what a pulley spacer was, but no one could find the part for it even though I bought the pulley itself at NAPA.

:icon17:
Done that a ton of times over the years for the parts jockeys that can't look anything up without listing a vehicle.

Are these kits all bought already? Thanks for taking the time to explain all of that TBatt.....One more question.....will this set up cause the S/C to overspin from its rated 52K RPM?

It will not change the spin on the SC past what the pulleys are set to do. It only increases the contact (wrap) of the jack shaft pulley to reduce the chance of belt slip.

Three of the four are sold so anyone that wants one out of the first batch, speak up!

BTW: all of the parts are in and I plan on making the spacers tomorrow morning. As soon as I have all of the parts and know what size box and the total weight is I'll post here again. I'm planning on shipping via USPS Priority Flat Rate Box.

Are you willing to sell me an extra spacer just in case my shop had the wrong size made?

Sent from my Pixel XL using Tapatalk

Sure. I have three feet of 6061 stock so I can make a bunch of them, when I have the time.

Dibs on the fourth?! PM sent

Daaam looks like e u beat me to this....guess I'll wait til the next batch

All four kits have been spoken for but I have extra spacers if you need one.

The only hold up are the pulleys, they will be here Wednesday. All of the spacers were made this morning and all of the belts were done this afternoon. Once I get the pulleys in I will be ready to ship. I will PM with details to the lucky first four.

I'll get another batch going probably in June. Life for me is about to get really crazy! I've got a full time job and a audio / video production business and I have 19 concerts to do from now till the middle of May. I still have 7 concerts in the works too. I needed a break and working on the lathe is good therapy..........

Ok, so much for USPS tracking updates...... the pulleys came in today so everything is here and ready to go.The last time I checked they were saying Wednesday.

I will PM the people now!

Just wanna make sure I'm doing the right things here haha.

I've ordered a Stillen kit used from a forum member. Comes with a Turbosmart 25mm BOV, and an upgraded license, as well as brand new bearings since a track day took out one of them. I do need to supply the fuel pump and refill the SC oil.
Link: http://www.the370z.com/parts-sale-pr...rs-others.html
I'm lucky enough to be on the list to receive on of the next batches of A2A kits.
I am also lucky enough to receive the one of the first batch of TBatt's extra pulley mods.

I feel solid on the DIY install when it comes to the mechanics of it and I've reviewed the Stillen book for the basic kit install, as well as the "Supplemental" instructions (Link: http://www.the370z.com/diy-section-d...tructions.html) from one of the forum members detailing pitfalls and ways to make the install more efficient.

Things I think I need to order:
Aeromotive Stealth 340 lph pump
SC Oil

Some questions:
Is the fuel return system necessary staying under/around 9 psi?
Are the Stillen-supplied injectors large enough for staying under/around 9psi?

Plan:
Modify SC kit as necessary for A2A conversion pre-install when it arrives Monday
Install fuel system components as necessary as soon as they arrive
Once Topgunz conversion arrives, install the whole she-bang, flash the ECU, and hopefully have an appt to get her properly tuned at Z1 (Where my current tune is from) or SOHO (2 hrs closer)

I've read this entire thread start to finish and I appreciate and hope to learn from all of it as well as add my own 2 cents down the road. Any feedback I can get, I do appreciate. Thanks in advance!

-Brett

Good to see you are doing your research before jumping into the FI world. Looks like you are on your way to a good start here. There are a couple things that might need to be addressed. I don't think your Turbosmart BOV will hold up very well with Tops A/A kit, you will most likely have to upgrade to the Tial like most others have had to do.

As for the fuel injectors, if you are staying with the stock kit (impeller & pulley) then you should be fine with using the 600cc injectors that the kit comes with but they will be high in their duty cycle. If you plan on upgrading the impeller or pulley at all then you might want to think about larger ones from the get go. If you don't plan on going over the 500+whp mark then you should need to worry about a fuel regurn system either. If you do end up seeking more power down the road then you will want to keep that in mind.

When it comes to getting tuned there are many different opinions on this. If you are happy with Z1 and staying with the UpRev tune then by all means stay with them. With that being said, have you checked out Soho's 370Z? That thing is frickin unreal. I doubt you would be disappointed going to them for a tune if they are a couple hours closer. And like the majority of the peeps here will tell ya, you should think about going the EcuTek route. Even with the updates from UpRev they are still behind the technology that EcuTek provides.

That is my 2 bits on your situation but I am sure others will chime in with their opinions as well. That's the beauty of this forum. Lots of people with different experience to understand what suits your specific needs the most. Good luck with your build!

SOHO will take good care of you.

Welcome to the group Brett....you seem to have everything well planned out...I agree with Bhunts advise on the BPV....I initially did the Turbosmart and got rid of if to upgrade to the Tial. In regards to ur fuel system that will depend l. I am only on the 9lb pulley and the A2A kit maxed out my Injectors at 7k. So I ended up doing an entire fuel upgrade with CJM....I figured it was worth it since I was in there already and the car was already being worked on. The cheaper option to an upgrade was a Return with a bigger pump. But then again it all goes to what ur long term goals are. If ur planning to upgrade ur impeller or blower then ur better off upgrading ur fuel system (Injectors/RFS/485 pump). The Stillen supplied injectors are really junk.

Can't wait to see ue results when ur done man...

Where do you guys order all your parts from? I've used Z1 for the parts that I've purchased so far (all theirs anyways haha).

Thanks for the replies! Medium term?, honestly, I'd like to get to about the conservative limit for the 7AT... It was tough talking the wife into the SC and current upgrades, so that'll have to suffice until I get a real job in a few years and can afford to upgrade the tranny and bottom end for longer term goals.

I figure I'll heed the advice and go with the CJM fuel system S1-SE, I think it is, and try to pick up a set of ID1000s, but how high can the 340 fuel pump go? I'm not sure how much I can go "a little over-budget" before she gets wary haha.

I know that you gotta have a money set away for just in case, especially boosted, so I don't want to use too much of that, you know? The counter-argument of course is buy it now so it doesn't fail haha. I'm tryin' my best here.

If you are staying conservative for your stock 7AT, you can probably just stick with what stillen gives you. I am only running a walbro 255lph pump and 600cc injectors (came with my Gamma kit - think this is the same for the Stillen kit, right?) on my TT setup and maxed out at 538whp before I ran out of injector... tuner dialed it back a little from there to 520whp.

As far as who to order from, supporting the vendors here will usually get your the best price (as a forum member) and also supports the forum... If I am buying brand new stuff I usually shop at Z1 and they have always taken great care of me.. any fuelling components I buy directly from CJM because he is one of the best sponsors on the forum and I want to support him.

I'm running the Stillen provided 255 pump and 600cc injectors and the duty cycle is at 75% so you should be fine. Talk to Charles at CJM (great guy) and see what he says. His products are top notch!!!

If I was doing it all over I would probably have gotten at least 750cc injectors to give me a little more safety once I get to my power goal but I think I will be fine in the long run. I have 5K miles on my car since the SC install and other than a bad fuel pump early on and a bad throttle cable everything has been great. Expect a few gremlins during your install. They are most always there but can be gotten rid of with a little work.

Good luck and please, start a build thread so that we can help you out if needed.
Tim

I'm sorry to bring in some noob questions so late in the game, but on the Z1 and CJM websites, ID725, 850, and 1000 injectors are all the same price. Is there any reason that I shouldn't just buy the 1000s? I also intend on getting CJM's S1-SE fuel system and I just wanted to order it all at once. I'll start my build thread probably tomorrow with an inventory when the SC kit arrives. Also, are there any coupon codes associated with the forum for CJM? I'll buy from them regardless, just based on feedback here, but just wondering. Thanks!

-Brett

Never noticed them the same price before but given that they are I'd go 1000's. That said, my understanding is the 850 and 1000 were replaced over the winter by the new 1050 injectors so maybe double check with Charles on what is available.

Get the 1000cc injectors. The larger the size the harder it can be to get low duty cycle situations dialed in -- like idle... but it can(and should) be done properly, and that's what you pay your tuner to do.

Go for the newer 1050x series. Quite a few improvements over the 1000 series. Cost about 10% more though.

I have these on now and it starts + idles like it was still an N/A, also largely due to Seb's help of course, even as a pure SD tune. :)

The additional pulley kits are selling faster than I can make them to the point that I have oversold by one kit. One person ordered two kits and I forgot that.........I have parts ordered for three more so two kits will be available next week. Back to the lathe.

Thanks guys!

CJM S1-SE fuel kit ordered as well as the ID1050X's... Time for the wife to get a job haha. Or kill me for the insurance... lol. But really maybe...

Also, my Stillen base kit has arrived, starting build thread tonight. Work won't officially commence until Togunz A2A arrives, TBatt's pulley mod, and/or the fuel system arrives. Thank you all for your help this far and thank you so much for any help coming in the future!

-Brett