if you have a feeling it's just their dyno reading low, ask if they have any other graphs from previous SC installs on the same dyno. If not ask if they have any turbo install dyno's and compare those to other turbo graphs in the finished installs thread to compare same kits/psi readings and see if they are relative or always lower reading, this will show you if the dyno they have is just a low reading dyno, and if it is, don't worry about it...

I may have missed it, but what's the boost at? Any charts to see how well it is making boost? I'm not exactly sure WTF is going on with GTM, but at some point I'm going to need to order the 3" down pipes with EWGs from them. [sigh]

9PSI

And just because VSR is helping you out, it doesn't make them god.
If VSR didn't read the instructions saying to break-in the kit. VSR should be on the hook to replace the blower. No if, ands, or buts about it.

I talked to Jon at Z1 a few days ago and he said break-in wasn't that big of a deal, but who knows...it may have came from the factory weak. I just want the problem solved at this point and my life to go on. BTW...it only putting out 8.7 lbs

Ok, just read through your last updates on power.
At 8PSI and around 400HP that is correct, so this means you have the wrong pulley for your kit and need to get the correct one. I would say you can call GTM and try to get the correct pulley out of them, or you can contact rotrex directly and see if they know what part number you need and where to source it.

Excellent advice and always the best route to ask the manufacturer. Most mani's give excellent service and are a wealth of information.

It's an 88mm/11 lb pulley confirmed by Bobby.

So since you have all the right parts one would assume you have an install/tune issue or a defective charger right?

Bobby put some miles on it and the car is on the dyno right now hitting 11 psi

Should have some new numbers in a few minutes

now hitting 11 or not hitting 11?

SO they did send you all the right stuff, and it was an issue of the shop not following instructions on the charger break in.

Sorry, I have fat fingers **FIXED**

I think it was a combonation of break-in and timing. Bobby said the timing was ony at 15-16 deg. He's taking it to 20

ETA....Baer's timing was at 24 deg when he pulled a little over 11 lbs @ 515hp

Glad to hear it working out for you!

Final numbers are 499/377

I am so numb right now I have little to no emotions about the numbers. I just want to pull up in my driveway from the drive home from Tampa without any holes in the block or hood. I'm so done with this. Turns out it was leaking boost from some coupler/clamp, don't ask me to elaborate because it was explained to me over my cell phone and sometimes sentences get garbled. I appreciate everyone's help and patience with my whining. I defenately have learned to be more patient and not to go off ranting when I should of waited for more info. This whole situation took me to the edge and nobody should have to go through what I did, it was F*CKING RIDICULOUS. My first mistake was going through GTM. In the end they finally came through with some help from Pablo and a certain forum member, I think without my persistant b*tching and the help from these people I would had to wait a lot longer.

Sam was helpful at times. I think he has great products but he certainly doesn't have his sh*t together. I would have went with a single turbo from either BP or VSR if I had it to do all over again. Hell, I would have a slightly used C6 Z06 if I could go back far enough. Hopefully I will have years of enjoyment from this set-up and no more drama inbetween. Hopefully I won't be a stupid azz and put it in a ditch with my new found power or get a speeding ticket, although I can get out of most tickets ;). Dreamer, I'll have a list of mods for you soon so you can add me to the finished builds.

BTW...I hope I'm not sceaming victory before I get her home :ughdance:

Congratulations man rest easy now...

Biggest reason why I hate boost are air leaks. I had to check all the time!! You might want to make yourself a tester from here on out and test regularly. If the installer didn't test along the way I feel bad for you.

Sebring isn't far from you (NASA is there June 21-22nd) and you would have the fastest 370Z there since I'm usually the only one there. It's a great way to get to know your cars true power without getting in trouble! I can get in the 130s in the back straight with 100 less whp, you can't do that often on the street without getting in trouble.

I originally planned on something good for 2nd and 3rd gear romps with occasional and short term 4th gear throttle. My job depends on me having a license, however, I've been getting away with a lot in the last 17 years.

So when are you going to pick it up?

Should be Monday before noon.

Duuuuude, SWEEEEEEEET!!! I can't believe breaking in the charger added 2-3 PSI

AND jackassery with the tune as well as a stupid coupler.

This should be strike 1 and 2 for VSR IMHO.



That said, I'm happy for you and only wish for the best

Congrats on the numbers. Dyno charts please!

glad it's all done and working properly, man what a mission, I've been keeping up with your info from the time you changed to the supercharger kit as I was thinking of doing the same a while ago..

Hey Guys,

like to start off by apologizing.

We as a shop did not read the last page of the instructions and we are sorry. I can assure you guys that will never happen again, however that was not the issue. The issue was the oversized 90' coupler that comes off the supercharger and oversized T-bolt clamps. When the T-bolt clamp reached its end it caused the oversize coupler to pinch allowing boost pressure to leak out. The fix was simple, I robbed some clamps from a BMW 335i.

The other problem we had with the kit was the oil system.

The oil pan, oil filter relocation, thermostat and cooler do not work as plan. We made new lines, some drilling and a little fabrication and we made it all work.

Overall the kit is very nice and it delivered the power. The instructions and the lack of parts showing up on time really caused a problem in the shop. Keep in mind we are a 18,000 sqft and at any giving time we have 40 cars in the shop. So when we have to stop and wait and stop and wait on parts that should have came with kit, not to mention that the kit fits 2012 and older NOT 2013 and for the record there are difference between the 2013 model not much but enough. My techs are not GODS, so they will forget and make a mistakes when pulled off a car.

The Tuner and I came in on the weekend (shop closed) and went through the kit and retuned it.

For the record it made 499.6 HP and 402 TQ. Very nice numbers.

Thanks
Bobby

infidel mentioned you pushed timing to 21 degrees? isn't that pretty high for stock compression at 11psi?

I had one hell of a time with that intake pipe clamping it to the SC, first it looks like it wont fit at all!

Did you pick the car up?

I had mine @ 24 degrees when I made 516 rwhp with 11 lbs of boost.

24 degrees where? I'll assume up top after peak torque, but this still sounds really high for 93 octane and stock compression

I had no knock at all and logged tons of info to go over but keep in mind my tune took a VERY long time to dial in.

Dude this has been a year if I'm not mistaken?

That's pretty crazy! Obviously it worked well for you. I think my 100/91 mix map is only like 18 degrees.

actually i think he just went and ordered every 370z part GTM makes.

poor guy will be waiting for a decade.......

:iagree:

I always though on stock motors the safe timing would be right at 16 degrees..

timing depends on boost of course but from most ive seen stock blocks around ~10-12psi no one seems to run more than ~14 degrees around peak torque ramping up to ~18 degrees at redline on 93. That could still be conservative though, I don't know how they determined that was "safe" (knock ears is the only way while tuning a car really)

I remember speaking with john at z1 about that when I was there having my car tuned and he mentioned staying right around 16 degrees of course many other factors are considered..

Out of curiosity, anyone around that's local to GTM ? I do wonder how they're still in business and if there are any more in house builds going on at their shop. Sad to see how they've fallen since the 350 days ....

but bullsh*t has a way of catching up to you.