Erdem

iTrader: (2)

I did'nt wan't to make a new thread.. so here's my list:

-Vortech SC v2 Tuner kit with Charge cooler (No FMU or SS Box)
-3.12 pulley
-600cc DW injectors
-NGK one step colder spark plugs
-Walbro 255lph fuel pump
-Stillen True Dual 2,5" Exhaust
-UTEC

everything is on the car now..
getting tuned at this moment..
will post Dyno graphs later.

Erdem

iTrader: (2)

Guys I'm having a heart attack soon...
this is my results.. it's about 5psi MAX
the impeller is NOT damaged BTW I checked it yesterday

str8dum1

iTrader: (11)

what is that dyno of?

Erdem

iTrader: (2)

vortech??

it is a boost graph.
just in bar instead of psi...

str8dum1

iTrader: (11)

I was thinking it was a HP dyno. .45bar is 6.5psi. the 3.12 is slipping past 5500 in the 'no slip' graph.

but still pretty low all around.

Erdem

iTrader: (2)

how to tell if it is a slip.. it's just a straight line??...

and also wich belt should I run with the 3.12pulley then?

Mr_pharmD

iTrader: (48)

only way to really tell is by the graph. If u see the psi level shooting up to say 8psi and then by the time u reach redline u see it linearing going down to 5psi then u have slippage.

U can also tell if u have the squeal at start up and the belt dust that keeps getting thicker.

maXmood

iTrader: (16)

get Gates belt.. 93" for non-rev kits.

not aware of the rev-up kits.

GT-ER

iTrader: (4)

I'm using a 79" belt for my 3.12" pulley with no slip ( I think ) but it's VERY tight. I would have slip without any odd noises, not even on cold starts, so don't go by that.

For the 3.33 I would use a 79.5" belt.

I'm using this belt setup BTW:

Erdem

iTrader: (2)

I use a 78,7inch belt 200cm at this moment, with no slip(I think)..

Erdem

iTrader: (2)

anyways.. mods please close/delete thread, I solved my problem

Threads

iTrader: (13)

What was the problem? If you don't mind me asking.

Erdem

iTrader: (2)

it was belt slip... small problem... but got big... I am the only one with a vortech 350z so not many tuners have experiences with it..
so my car has been sitting in the shop for 1-2 weeks...

we fixed the problem yesterday, with a new shorter belt..

the Stillen and Vortech sounds nice together btw.. I love the Stillen TD, it's a single wall tip. but idk if it makes any difference, from the dual wall tips??

maXmood

iTrader: (16)

i'm glad you had that fixed..

i think i'm having the same exact issue. and it's probably time to buy a new shorter belt.

we're both in the same shoe, as my tuner have never tuned an FI'ed 350z but did stock ones.

did you have to retune it again? or you sticked to the first tune u got?

Erdem

iTrader: (2)

I have the 3.12 pulley and only make 340-350flywheelhp..
am I loosing power beacause of the TD Stillen Exhaust?

str8dum1

iTrader: (11)

how are you measuring flywheel HP? you have the motor on an engine dyno?

Erdem

iTrader: (2)

I think I meant crank hp.

it's a normal dyno run.. it read 250 crankhp bone stock and with the TD and Vortech it read 340 crankhp.. that's what my tuner told me anyways... he told me that it's NOT whp.

Drock

well to my understanding.. and soon to go with a vortech setup..

the 3.12pully is supposed to produce about 9psi..

so if you are showing only 5psi and 340 even if 350 HP at the crank, I would think something is not being done properly..?

with your Stillen TD and Vortech with 3.12pully, you should be in the range of 370hp to the Wheels, not crank.

copied from another thread:
- ballpark hp numbers for non-REVUP engine on a typical dynojet SAE corrected generally are in the neighborhood of:

320-335 whp, stock vortech tune with stock pulley and stock everything else on car (stock exhaust, cats, etc)
340-350 whp tuned
350-370 whp add exhaust, HF cats, plenum, and tuning
370-390 whp add 3.12 pulley and tuning
380-400 whp add headers and/or test pipes, and tuning
390-420 whp add 2.87 pulley and tuning
420-440 whp add cams and tuning
440-475 whp add water/meth injection, more timing, at least half race gas (96 octane or higher) and tuned

470-510 whp switch to Si or T-trim blower, and tuning
500+ whp (in theory) built engine with stroker kit, ported heads, compression ratio somewhat high around 9.5-10:1 raise the redline slightly, full race gas, and tuningtorque numbers are generally 70-90 less than the peak whp numbers

05Z33

iTrader: (11)

Flywheel and crank HP are one in the same. Your 340 HP is at the rear wheels (340WHP). Your tuner is wrong. Find another tuner ASAP and get retuned. You should be getting another 40whp more or less.

Erdem

iTrader: (2)

I'm seeing 8 psi of boost... 5psi was with an old belt slip issue, that I solved.
I'll update the numbers in about 2 weeks..

thanks guys