well here is the final number of our custom G35 sedan

still trying to get the dyno sheet up

it made 328rwhp and 282lbs of torque (8psi)

 

Impressive. I have seen the ATI procharger do around 343 rwhp but I forgot the PSI for it. Did you guys decide to boost less for reliability reasons? How is the noise on the Vortech compared to the Procharger.

 

whoa


very nice

 

hope this works


http://www.my350z.com/forum/attachme...&postid=571098

 

I'll host it.

 

Are you running the stock exhaust? If so, you will see some nice gains with headers and cat back.

 

damn not bad

 

the car has a crowford plenum intake manifold and the custom vortech charger or than those two it's stock

 

Although its the same motor the G35 sedan makes less power stock on the dyno. The procharger on the 350z is making around 350whp at the same psi the vortech's running on this sedan. Hopefully technosquare can crack the ECu on the sedan and raise the rev limit to 7k and then 350whp is there. Add headers and full exhaust 2.5" or larger and 370whp is there and all on 8psi. I'm pretty impressed its making this much power on stock header/exhaust combo and all on pump gas.

 

you don't want to raise the rev limiter with the reflashed ecu! This caused all sorts of problems with the ATI unit.

here's their quote:
"When we first came to market, the ability to raise the rev limiter was not
readily available, and this was not a concern. We also thought that our
conversations regarding the dangers of changing pulleys to raise boost level
would also make it clear that increasing the redline was also dangerous with
the factory pulleys. We are aware of the timing maps with the stock red
line. If the rev limiter is being raised the timing map also needs to be
addressed, please ask your tuner that is doing the ECM tuning if they have
full control over the timing in the ECM. Alternatively, you can retard
your timing if you choose to run more than 7 psi, or plan for further
modifications that can increase the motors HP level. You obviously can also
run higher octane fuel, etc. But the main point is, for stock motors
running 91 octane fuel, you should not run more than 7 psi of intercooled
(good air flow) boost - either by changing pulleys, or raising the rev
limiter. "

 

here's the link to the thread where ATI addresses all the issues with F/I on the 350Z motor:

ATI THREAD

I hope its useful to you guys.

Here in my opinion is the proper way to add F/I to your N/A car(trust the Australians to show us how its done with a Z!):

bet F/I 350Z

 

scrib see how the stock G35Sedan 6mt is making no more than 217whp with intake /plenium. Very different from the 226whp you posted in our last discussion! STD numbers are always off!

 

I would be real interested to see some before/after dyno numbers with the Crawford plenum on a F/I application. The plenum really shines up top on a N/A VQ. I have heard of a few ATI related engine failures, so I hope the Vortech is more reliable. I think that a lot of the problems are cause by improper tuning though. Im so tempted to buy a used Ethusiast Z and S/C it. That will satisfy me until the C6 Z06 comes down into my price range

 

nice gain!

 

here is a short vid of how it sounds

http://www.audioenvy.com/sedansc.wmv

 

not digging the sound there doesn't sound smooth.....performance on the other hand


never understood why nissan decided to put the opening to the intake manifold facing towards the driver??

 

Now thats some power.

 

If you heard this in person you would love it. The sound of angry crickets is awesome...I believe the engine was still somewhat cold when I made the video. The idle was a little high so the full effect of angry crickets wasn't available.:P

 

lol, i'm sure it sounds good might just be something people like or don't like. The idle sound is what gets to me......you start reving the engine.....now that's a different story

 

well what I was saying is when the idle lowers to around 650 its a totally different sound. I believe in the video the idle was close to 1k therefor the sound output was totally different than warm idle speeds. Im glad you like it

 

That looks like pretty good fuel tuning, what method is being employed?? Running right between 11.5:1 - 12.0:1 is what it looks like. I see the typical centrifugal torque curve; one which keeps in increasing its twist.

But I do not like the sound. I hope it is not noticebale in the cab at idle??



We'll see what ya'll get out of this. It does appear that the J32A2 would be making more power at the same intercooled boost levels. :P

 

what does the cls make with just the charger addition? This is a totally stock G35 except the pletum manifold which proved to gain nothing on the dyno before hand. And of course Vortech blowers don't make any torque...

 

WOW.

Damn VQ engines.

 

No one is sure as no one would dyno with just the blower on a CL-S6.

But that is irrelevant as it is not comparable. The base SC kit for the CL-S makes just 4 PSI boost and is non-intercooled. That is being remedied...

 

Well Im just curious to what the bolt on kit for the CLS at 8 psi would be without any other bolt ons. I know headers give you guys rediculous gains as well as larger exhaust to compliment the extra air being pulled in. I myself would rather have a twin screw blower either way because it boost pretty much off idle and gives a heck of a lot more torque.

 

Who knows as we can't really run more than about 5 - 6 PSI without pinging. There is a weird airflow occurrence just after the VTEC change over which cause a lean condition in some cars. Un-hooking the IMRC valve helped with this though.

Plus, since the kit is not intercooled, 8 PSI would really be pushing it on a 10.5:1 CR motor.

I'll will have the intercooler completed soon and will need to see where the boost is at. If lower, as I expect, I will get a new pulley made to run up to about 8 PSI. I'm speculating that it should be making in the 260 - 280 WHP range with the stock cat back exhaust in place.

The nice part about the Vortech blower on that G35 is the future potential. After about 8 - 10 PSI boost these Eaton blowers start falling flat whereas the Vortech has room to keep going.

 

True I can't wait to see what kind of numbers you get after the IC project. What does the kit come with an M90? Could a M112 fit to run higher boost (if possible) and keep temps down.

 

Not even, they supplied the MP62 blower which is barely large enough. 8 PSI will be at the limits of this blower. The MP90 would have been better for a 3.2L motor.

 

ouch

 

Tell me about it...

But seriously, 8 PSI is about all we would want to run on the street with the current 10.5:1 CR. More than that would require lowering the CR. If I were to go through that amount of work I would also look into going with a turbo or some other blower/compressor that can flow more. I would probably also look at a different vehicle as this is already pushing the limits of this FWD chassis.

So for the intended purpose, the MP62 blower fits well for a mild street application. It can flow up to about 600 CFM before its efficiency drops off significantly. Plus, it provides most of its peak boost even at 1500 revs and continues to red line which makes it great for around the town use. Plus it is more than enough to make enough power to destroy tires at will.

 

damn thats alot of power