You just made my day!

I've been reading up on Seb and I feel that I have made the right decision and you just confirmed it for me. Thanks!!

Ecutek kit arrived today! Now Seb and I can get to work!

Looks like we might have a little snag. My Z is a early production 2009 and the ECU version isn't showing up in the Ecutek list. It is in the Uprev database so the version is legit. Anyways, I have sent Seb all the info he requested (screen shots and ROMDUMP) and he will work it out.

Super nice guy to work with!

Yup, you are in great hands and if he can't figure it out on his own he will work EcuTek to get you up and running the right way!

Seb is the man, I have been working with him for a few weeks now on tuning my BP twin scroll 6766 kit as well as going E85 and my experience has been stellar with him.

+1 for anyone needing tuning local or remote as in my situation

I just loaded my first tune from Seb. WOW! What a difference!!! Runs and drives like stock once again but with a lot more throttle response. Like, be careful type of throttle or the rear tires will break loose.

Now to get some logging in for him.

I wish you could see this big grin on my face!

Today started off at Veloce, a new indoor electric go-kart race track. Got a couple of races in and showed some young ones that us old guys can drive. Came home and started working on the Z and success. Great day so far!!!

Wheels!
 

Here are a couple of shots of my new wheels from GetYourWheels.com. Jason and his crew were great to work with. I followed his offset reccomendations and, well, look for yourself. Absolutely perfect with NO spacers, NO rubs.

Tires are RE-11 (OMG!) 265/35/19F 305/30/19R. Now I can put the boost to the ground!:driving:

Seb just sent me a new tune to load. This one is a little richer while on boost. I'll get it loaded after work and get some logs done. Yesterday while coming home I dipped into the boost and got about 6psi and it was pulling like a freight train. Things happen real fast when the boost gets to 4psi. Can't wait to really open her up! And yes, she will spin those big tires easily in first gear. Had to scrub them in ya' know.......

Latest tune is awesome! Seb is getting her dialed in.

Finally got the dang TPMS sensors to program, took it to the dealer. They didn't rape me too bad. It wound up being worth it because when I drove in the service bay all of the mechanics stopped what they were doing and drooled over my Z. Then I popped the hood!:eek::eek::eek::eek:

Lol, I had that same thing happen when I took mine into the dealership for an alignment. It was funny because a guy walked into the waiting room after dropping his car off for service and asked how fast are things moving and an old guy that was sitting there said, things were moving pretty fast until that damn Nismo came in. I bit my tongue to keep from laughing out loud.

Sent from my SM-N910P using Tapatalk

Seb sent me another tune to try and permission for a WOT run! I'll step into it with a couple of partial throttle runs first and check the AFR before going WOT. Saturday is gonna' be FUN!

The transformation so far has been unreal. The car drives like stock until you put your foot into it. My gas mileage sucks! It's not the car, it's me playing with it and we ain't even at full power yet. But hey, gas prices have been going down lately so enjoy it.

So using your initial butt and fun factor dyno how much power/tq do you think it will have over the water setup?

I don't have that reference as I installed my a2a from the beginning. All of the water parts are still unused in the box. When I get the time I will make these parts available on the forum in case someone would like to have them as spares.

What I can say is that the intake air temp is about 1 degree C above ambient on my part throttle runs. Hopefully I'll have the WOT log done Saturday afternoon. It will be hot so this will be a good test of the a2a. I've been really studying my Ecutek and AEM data logs. So far the car is running great!

I will have the car on the dyno August 6th then we will know for sure just how much fire this dragon breaths!

It's really nice to see these builds coming alone successfully, most all proving that this is a much better setup going Air2Air. I only wished this alternative was available for me when I had my supercharged Z. Continue the great work topgunZ, you have really changed the game for the Stillen guy's.:tiphat:

Thanks man. Glad I can help others obtain better results and put this motor to good use more reliably.

First WOT run was made on Saturday and the boost was low. I have the 9 psi pulley on the SC but the max boost recorded was only 7.2 psi. Sealing the MAFs with RTV and will re-run maybe today. I also have the larger idler to install on the SC drive belt. I'll go ahead and get it installed too. It has been so dang hot that working on the car hasn't been a lot of fun. I have a large shop fan and a couple of smaller ones that I blast toward me while working. Feels like I'm working in a hurricane but it makes it tolerable.

Otherwise the car is running great! Seb is a magician!! Still, with "only" 7 psi it was amazing! The car pulls like craZy!

A good way to check for leaks is to use a shrader valve in a 2.5" pvc pipe cap and put it on a coupler as far uspstream as possible and pressurize your system.

This is what i did and i found a leak with ease. You can hear the air coming out.

Guess where my leak was?...... one of the maf seals..lol.

That stillen manifold could easily be a culprit as well.

My Supra buddy suggested the same thing. I'll try a run this afternoon and see what my AEM log says. So far it is within .1 psi of what the MAP sensor reads according to the Ecutek log. The nice thing about the AEM is that it is logging all of the time so all I have to do is plug it in to my laptop and download it to see what is going on. It records two hours of data and then starts overwriting the old data so you always have two hours of history available.

One of my new front tires is bad. I took the car back to the tire shop and they now have 3 1/2 ounces of weight on the left front tire and it still isn't right. I called Tire Rack and they are sending me a new tire. Great people to work with!

When I made my WOT run and got off the throttle I heard a loud clunking sound coming from the front. I pushed the clutch in and the sound immediately stopped. When I let the clutch back out the noise came back too. After the car had slowed down the noise was gone. When I got back to the house I started looking for what could have caused the noise. It was caused by the torquing of the motor while decelerating. If I put the car in reverse and popped the clutch the same sound could be heard.

The problem was the front throttle body was touching the tower brace. There was zero clearance and when the car was accelerating it was just pushing harder on the brace but when the torque was reversed the throttle body and the brace were banging into each other. Anyone else had this interference problem?

The solution was simple, I just added some washers under the brace and now the noise is gone. I knew that there wasn't much clearance there but the two parts were in constant contact without the spacers.

Sealed the MAFs and installed the larger idler pulley so I have lots of tension on the SC drive belt. No luck. Still only getting 7 psi of boost.

I replaced the 3.4 inch SC pulley with a 2.92 from Vortec and that should have put me at 9psi so I have a leak somewhere. Next culprit is probably the Stillen intake plenum. I'm pretty sure that the block off plate is sealed good but the problem could be the silicone mating gasket where the upper manifold mates to the lower. If it is leaking under pressure it should also be leaking under vacuum so I might be able to use the propane test to check for a leak up under the plenum. Has anyone tried this? The method is to attach a rubber hose to a propane torch and open the valve so a small amount of gas is coming out and then run the hose around suspect areas. If a leak is found the engine idle will change. Of course this is done in a well ventilated area with moving air.

As you know, getting the intake filter off to do a pressure test is not easy or simple but it may be the only good method of checking for leaks. I think I would rather fabricate a pressure adapter to the pipe feeding air into the intercooler core, where the pipe mates to the SC. This would allow me to check everything except the junction of the SC to pipe.

I'm open for suggestions.

Otherwise the car hauls AZZ. I have a open diff on the car that will soon be replaced with a Quaife. At about 6500 rpm (80mph) the rear wheels are breaking loose! The traction control light starts flashing. On my next run I turned off TC to make sure the TC was not cutting power. Amazing that the car is developing enough power to spin 305 RE-11 tires AT 80MPH! The Quaife should help that issue out. Can't wait to get full boost.

List your pulley sizes for me:

Serp side =
Jackshaft =
Supercharger =

Also, I had tried the propane method and it didn't work for me. Thats when i pressurized the system and BOOM. There it was, super easy to see at that point. I had the propane all around that area too and it didnt blip the idle at all.

Here you go. If you have Prime then and order it today it will all be there for you Friday. I cant remember if the 2.5" is the inner or outer diameter but you get the picture. I'd just take a silicone coupler in to Home depot or the like and find the cap that fits. Drill a hole in there. Use a couple rubber washers and a nut and your done.

WARNING: Do not stand in front of this when you are charging it. Mine came out once and luckily it was facing a wall. It hit the wall at like 100mph. That would have hurt..lol. I scuffed up the sides of it so it had a little better bite and it never came out again. Hold on to it when filling it so if it does come out it doesnt smack your hand.

https://www.amazon.com/Control-Devic...schrader+valve

https://www.amazon.com/Genova-Produc....5%22+pipe+cap

Serp side = stock (size?)
Jackshaft = stock (3.2?)
SC = 2.92

Thanks!!!

Yeah you must either have a leak, or your boost gauge is Ef'd. What gauge are you running?

Boost gauge is a AEM Failsafe. The MAP sensor/Ecutek log and the AEM data log both agree that the boost is only 7.2 psi. I'll plan on doing a leak test this week.

My Supra buddy had a similar problem and he had to do the same to find his problem.

I forgot to mention how well the BOV muffler works! Sounds really smooth without a lot of drama. For less than $10 it is also a cheap fix. You can see it back on page 4.

It is capable of flowing 150CFM at 300 PSI so it is very low restriction. Drops the noise by 20db which is a lot!

I'll be heading to the hardware store on the way home to pick up items to do my leak test this weekend. Wish me luck!

I don't think the leak is coming from the intake gasket because the manifold vacuum is really strong according to my gauge. The MAFs are sealed so it must be a coupler somewhere.

STAY SAFE! Dont pressurize that thing past 8 psi. That is more than enough to hear anything leaking. I heard mine at 2 psi.

I found the leak and it was easy. The two clamps that go on the coupler between the outlet of the intercooler and Y pipe were never tightened. You could wiggle them they were so loose. Fixed now! Didn't pressurize the system being that I found the problem.

Now the car is getting really squirrely with the open diff. The electronic TCS can't lock down on the rear brakes enough to control the car so WOT is very difficult to do. The Quaife LSD will be installed this Friday so that should help a lot!

I'm not sure how much she is producing but I've got a feeling it is north of 450whp. Freakin' craZy!

Well shall know in 3 days.....Sub'd..:driving:

I took my Z to our monthly car show (first Wednesday of the month) and it was a BIG hit. No one there had seen the car yet and it drew a lot of attention. Parked next to my Z was a Dodge Hellcat but no one paid much attention to it compared to my Z. The Hellcat owner was a little miffed.....:shakes head:

It was a lot of fun and I got to meet many motorheads. The Nissan guys from the local dealership were drooling over the SC.:yum: Tons and tons of questions and LOTS of high fives for doing it myself.

I took some pictures but they were pretty bad because of the sun angle. I'll bring a real camera next time.

Heading to Z1 after lunch today to have the Quaife installed, finally!:driving:

So are you done with the e-tuning or are you still getting the kinks worked out?

2 more days til u Dyno... Whoot Whooooot!!!!!

I'll be done when Seb says I'm good to go. The car is running great and the AFR is looking good, no knock, no timing pull back. He might push some of the settings up but I'm leaving those decisions up to him. I want SAFE power. I brought my laptop with me so that I can run some logs while I have the car on the dyno Saturday at Z1.

I had to stop the WOT runs because I was loosing traction above 6K rpm. The LSD will be installed tomorrow so that problem should be cured.

I have found that this whole boosting process is just that, a process. Get one thing fixed and the next one shows up. It's all good and well worth the effort.

Many, many thanks to the guys that contribute to this forum. Without their help and experience this would have been much harder!

Quaife Install
 

Quaife install today at Z1.
Z1 is like Z heaven!

Showed up at 9am at Z1 and the diff and bushings were done by 5 and then they strapped the car to the dyno.

I wish I could say that it was great but I'm still having a boost issue. With the 2.92 pulley on the SC it made 8.4 psi which worked out to 397.8 whp and 310 torque. This was on a Dynojet dyno. AFR was at 11.5. Oh, and the sound at full song, was heavenly! I'll post the video when I return home.

With the Quaife installed I should be able to resume some pulls for Seb, safely!

Once I get the boost problem solved AND Seb finishes the tune I'm hoping for bigger numbers. I'm still very happy with the results and I will get it resolved. What is not to like about 400 whp?

While I was at Z1 I did pick up the full Akebono brake set, red calipers, drilled and slotted rotors, SS brake lines and Stoptech pads. They made me an offer I could not refuse! The whole crew at Z1 was great! I highly recommend them.

You're on your way! This remote tuning business is really a process.... I'm interested to see how the Quaife helps out.

It's always interesting to me how SC guys are always having issues getting enough boost... while us turbo guys are always having issues getting too much boost.

My thoughts are that a LSD like the Quaife is required for anyone going boosted. It gives you so much more control of the car when you lose traction. The loss of control is predictable. Plus it give you more overall traction.

Are you using UpRev and 93 Octane?

Ecutek and 93 0ctane. I'll do a pressure test hopefully Sunday and see what I can find. The issue could be belt slip too.

OP congrats on the success! I'll be leaving my Z with Robert at Z1 on the 30th to have then install headers, intake plenum and tune. I've always ordered parts from them but never had them work on my car, your reps for them makes me feel good abouto my decision.

Z1 is a class outfit. Jon and Robert were great to work with and I felt really comfortable with them working on my car.

Right before the dyno run they noticed a screw missing on the fuel rail crossover pipe and replaced it. Whew, not sure how that got loose!

Check out the cars in the showroom. WOW! They have a 300ZX twin turbo that is drop dead gorgeous.

I talked to Topgunz about the low boost and he brought up the idea of belt slippage of the serpentine belt on the jack shaft pulley. There is very little contact area of the belt but the SC mounting plate has a threaded hole for another idler that will help that out. I remember seeing that in one of the FI threads. Time to go search that info.

I was planning on doing a leak test this weekend but got sidetracked by my new brakes. Doing the swap took way more work than I had planned so by the time I was finished with the brake install I was dog dead tired and decided to hold off on the leak test. Pedal is still a little soft so I'll bleed them again.