I am wondering if anyone that is purchasing the Greddy TT is planning on boosting it beyond the preset 5.6 lbs of boost?

If yes, please say what you are going to do to keep it operating safely.


Thanks,

Jeff - Zland

 

Yes, however, I believe the preset is 5.6 psi and has been estimated to produce around 335 wrhp. My kit is being installed right now with the e-01 boost contoller, Greddy gauges, and BOV.

I will not be sure what boost will be until the install is done on Tuesday and the Z is dynoed to get the wrhp #. Once that is done my installer/tuner will let me know how it turned out. My understanding is that my installer/tuner will create the necessary maps etc. after data logging/dynoing to produce around 350 to 360 wrhp. I believe that 350 wrhp is a good # to go with now until some internal engine work is done to up the boost. However, I've been told and I have read over and over again that TUNING the specific car being worked on is very very important. Its an absolute must to have a great tuner to keep things running aok.

 

Yancy:

What are the reasons your tuner feels he can get more hp out of the car at the same boost? I am sure Greddy attempted to tune it to optimal settings at 5.6lbs of boost.

Jeff

 

Jeff,

I will not know what the final boost will be until after the install and dyno on Tuesday. In any event, I anticipate the boost being slightly higher than the preset 5.6 psi to attain 350 to 360 wrhp. However, I do not know what it will be just yet.

I expect a dyno done after the install using the preset maps at the 5.6 psi setting, then the tuner will likely increase boost and tune it or create a new map to optimize the kit and achieve around 350 to 360 wrhp. I don't have the techinical expertise to explain how he plans to tune it for more power though. Just a guess, but he'll probably increase boost a bit and rework the mapping of the emanage system with the e-01 boost controller. My installer/tuner is www.godspeedinc.com Dan goes by the screen name of guru.

 

Yancy:

So it looks like you are giving him the goal of getting 350-360 hp and he is boosting it as needed to achieve that goal?

Maybe you can have him post here to explain the process he is going through. Who knows, he might get another customer by doing so and I am sure many of us are interested in the process.

You must be really excited to be getting this installed. I know I would be!

Jeff

 

I am running the Greddy kit with 2 modes, via Profec-B boost controller. I will be running 7lbs and 9 lbs.

The shop doing the install created "The Blue Beast" or Skidazzle's car. Very similar setup.

E-Manage, gone and for sale, Aeromotive fuel pump, DFMU, Apex SAFC II, Profec B, 2 EGT guages (dual exhaust) and boost guage.

 

I will be also running the greddy TT at an est. 8psi. I am going to get the TS TT ecu upgrade and along with a reprogramed map on the emanage. looking for around 380-400rwhp mark when I decide to tune it. so th boost mabe really anywhere from 7.5psi to 8.5psi

 

t32gzz:
Sounds interesting what you got going on. Can you explain the advantages to going with the Profec-B boost controller? Are you concerned with running your car at 7-9 lbs boost without internal upgrades?


spazpilot: I am going to ask you the same thing i asked t32gzz. Are you concerned with running your car at 7-9 lbs boost without internal upgrades?

As you guys can guess, I am considering which FI kit to get and seeing how eveyone is approaching this Greddy kit. It will be interesting to see which set up ends up being the most reliable with the most hp. I know it is very early in the game to know but it is fun to see how it develops.

Thanks, Jeff - zland

 

TS ecu upgrade runs 7.35psi on stock internals which is initially what I am planning on running. Once I save up some more money (TT, FMIC, pulleies, exhaust and the eo-1 really set me back a bit) I will upgrade the rods and pistons but only lower the compression to 9 or 9.5 and raise the boost higher. Like I said on a stock block I will run what will give me 400rwhp which should be of no major concern if tuned right (tuning theres that word again). I don't race every night and will stay on the rich side with a lot of timing taken out. Only time will tell I guess if I am wrong

 

Well the base maps are always done very safely by Greddy to the lowest possible denominator. We can optimize the timing and fuel to run safely leaner or with more ignition advance at lower boost to create more power and of course, optimize it for slightly higher boost levels to get more power. It is always easy to improve upon a base map since they are by their very nature safe and also due to the fact that the cars all differ greatly from one to the other.

 

350Z Greddy specs at only 5.6 lbs of boost:

1/4 mile = 12.79
0-60= 4.61 sec.


Lamborghini Gallardo ($177,200) specs (per Car & Driver mag. Feb 2004):

1/4 mile 12.4 secs
0-60 = 4.1

Any questions??

 

That's like comparing a highly modified civic against a ferrari.

Sure its as fast, but its not a ferrari

 

You are right, the Nissan will last longer.

 

Oh yeh! That's one of the main reasons I decided to go with my 350Z instead of one of those Lambos or 575M Maranello

 

I was debating between a used Yugo with low miles, 350Z, or an Enzo.

 

LOL Well I think you made the right choice! Those Yugos are over-rated

 

Zland- I am a bit concerned about running that much boost, but I am following SkiDazzle's lead. I am using a very similar setup as he has on his car and tuning will be done by the same shop and tuner. I will have a low boost mode on the Profec-B for daily driving and 1 or 2 high modes for racing/ track use.

SkiDazzle has been driving his car for months with no issues to date, so with my fingers crossed, I am going forward. just fyi, I will be rebuilding the motor in less than a year, so I am not looking for long term reliability, at least not longer than a year!

 

It is so much fun watching everyone getting their FI kits. I have been waiting for so long to see us get to this stage. Upgrading wheels, tires, and suspension is nice but here is where it gets interesting.

What are you planning to do on the rebuild? Are you going for big hp and building the internals etc?


Jeff - zland

 

I dont know Im thinking about adding a NISMO sticker..now thats interesting

 

Which one do you want me to send you.....