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First time on the dyno!

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Old Aug 6, 2007 | 10:56 AM
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Question First time on the dyno!

So i finally get my car back this weekend and after almost a year of owning it, it will finally run perfectly! So once i get it back im bringing it in for tuning and i just had a few questions...

First off i want to know how much boost i can run safely on my new setup?

Here is my mod list:

Pettit:
intake
8lb flywheel
downpipe
midpipe
catback
pulley kit
Greddy:
elbow
type s bov
fmic

Apexi AVCR Boost Controller
plx 300 wideband
pfc +commander
walbro pump
koyo n-flow radiator
1600cc injectors
KG competition fuel rail
fpr
non-seq(half poor half rich) on stock ports


I was thinking about running 14psi... will i be able to run this safely, and if so could i go any higher?

This car is my DD (until i have enough money to pick up a NA FC mayb?) and i want it tuned for max psi and then 10psi for daily driving? Do i just let them know lets say tune it to 14psi and 10psi, can they even do that?

And lastly how much power do you think i can pump out of my new setup? And of course once i get it tuned ill throw up the dyno sheet! Thx -Eric
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Old Aug 6, 2007 | 11:01 AM
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The stock turbos are only good for 14psi
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Old Aug 6, 2007 | 11:52 AM
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In theory, you should be fine for 14 PSI given the fuel system upgrades.

In practice, it depends on the competence of the tuner and any underlying mechanical issues you may find on the dyno. Who is tuning it?
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Old Aug 6, 2007 | 03:31 PM
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Originally Posted by gracer7-rx7
In theory, you should be fine for 14 PSI given the fuel system upgrades.

In practice, it depends on the competence of the tuner and any underlying mechanical issues you may find on the dyno. Who is tuning it?
Im going to a shop in sarasota named Art... the tuner there is supposedly the Steve khan of 300zx's.. r1rx7girl told me about them.
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Old Aug 6, 2007 | 03:38 PM
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Originally Posted by efranklin
Im going to a shop in sarasota named Art... the tuner there is supposedly the Steve khan of 300zx's.. r1rx7girl told me about them.
Its to bad we dont drive 300zx's. I would be worried if this is the guys first rotary motor.
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Old Aug 6, 2007 | 03:46 PM
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Is she the only one that recommended him? If so, you are a trusting person. Maybe too trusting. I'd personally do a bit more research. Maybe ask around in the regional forums also. From what I understand there is a pretty big rotary community in FL and a fair amount of shops to choose from.

turbo rotaries don't offer the same level of room for error on the tuning side as piston motors do. the theory is pretty much the same but the practice isn't.
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Old Aug 6, 2007 | 03:55 PM
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They supposedly have had experience with FDs... any good shop around me is either 4 hours away or has a 2+ month waiting list...
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Old Aug 6, 2007 | 04:44 PM
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^So drive the four hours (Pettit Racing or Crispeed on this forum) or wait the 2+ months. It's much better going to someone that specializes in rotaries than a 350Z guy. I'm sure you are excited but think rationally about this one - tuning is the most important thing you'll have done to the car. Do you really want to go to a non-rotary specialist and pop the motor?
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Old Aug 6, 2007 | 05:01 PM
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I understand not to get excited and wait or make the drive. But ive heard great things about this guy and his shop. If i were to wait the 2 months would it be ok to drive around without a tune? and by drive around a i mean get into boost?
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Old Aug 6, 2007 | 05:36 PM
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^No. If the car has not been tuned, definately not. I'm assuming you took it to a shop to have your components installed. Did they do a base tune on the car to get it running? I'm assuming there are a lot of PFC maps available to get you going as you have basic/popular mods. Ask under the PFC thread in the engine management section. Don't, however, boost as the car is not properly tuned.

I know this sounds harsh, but think clearly and take the car to a rotary tuner. Anyone know a good one in the Tampa area that is highly regarded?
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Old Aug 6, 2007 | 06:56 PM
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Am I the ONLY one that is too much of a puss to put my new engine on a dynomometer, for fear of catastrophic failure?
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Old Aug 6, 2007 | 06:58 PM
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Originally Posted by Sweet7
The stock turbos are only good for 14psi
hmm.. really?
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Old Aug 6, 2007 | 07:06 PM
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Originally Posted by G's 3rd Gen
hmm.. really?

Explain :?


The only shop in tampa is Mazsports and they have a 2month waiting list.. the fall semester is about to start and the FD is my daily.. would it be safe to drive around with a basic map on the pfc?
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Old Aug 6, 2007 | 08:14 PM
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^Yes, of course depending on the map. I'm assuming the map has the car going rich and you'll not boost it. Why not take a road trip to Pettit Racing and get it tuned up before the semester starts? If it's a state school then you start on the 27th right? Plenty of time to make the trip to West Palm. Get up early in the am, drive the 3.5 hours to Pettit, tune it up and road trip back, boosting and all

Or pm Crispeed on this forum and hook up with him. He's an excellent builder/tuner of rotaries. Do a search and see the vids of the cars he builds. He's a little further in Miami but worth it.
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Old Aug 6, 2007 | 08:41 PM
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I might consider the drive to pettit... but i dont believe i should completely throw out the idea of the tuner i had in mind.. just because he hasnt tuned as many FDs as pettit doesnt mean my engines going to blow, or the tune wont be good enough.. Ill do a little more research on the guy i had in mind and make my decision from that.
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Old Aug 6, 2007 | 09:07 PM
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That is true and more research would be good. Although why pay money for an "OK" tune? I just think that it may really be worth your time/money to go ahead and make the trip to Pettit.

On the boost question, 14 is about the top end with the stockers. But running that consistently. Your idea of being tuned to be able to run that but mostly staying with the 10psi tune for DD is a good one.
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Old Aug 6, 2007 | 09:10 PM
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Originally Posted by efranklin
I might consider the drive to pettit... but i dont believe i should completely throw out the idea of the tuner i had in mind.. just because he hasnt tuned as many FDs as pettit doesnt mean my engines going to blow, or the tune wont be good enough.. Ill do a little more research on the guy i had in mind and make my decision from that.
Good luck and if you go to Pettit, tell Cam Worth the owner I said hi.
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Old Aug 7, 2007 | 11:32 AM
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Originally Posted by G's 3rd Gen
hmm.. really?

I should have specified safely.

Last edited by Sweet7; Aug 7, 2007 at 11:46 AM.
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