Funny thing is car was already flashed when I bought it off a Beemer dealer... so I don't know.

However the dyno guys will readout and store the calib before making a new map for a new exhaust being built. They said timing was pretty aggressive and mix a bit lean (however they measure after cats - Durametric AFR values to be read out). Car makes noticable more power on 98 octane. Tracked it three times so far and it keeps punching solid power and no knocking heard so far.

 

only 500hp??? i was hoping for 600.
i found a turbo for 34,000 and idk if i should sell my 300zx and try to get a loan for it...
only thing is that my Z's stock turbos can dish out more 550bhp...
i want an awd car though... my Z steps out in the rain all the time...

 

Yes, but the Z will only produce 350 tq and that is the other side of the equation. Porsches always produce high TQ numbers.

 

Just pulled out dyno sheets for my TT(Mustang Dyno). EPL 1 bar tune 449.2 hp 522.2 tq on 93 oct. pump gas. I would guess that puts me in the 515 crank HP range.So if he's running 1.2 bar he should be making even more.

 

Anyone knows the releation between bar increase versus power?

It would be good to know what 0.1 bar increase is directly worth in bhp?

 

I think 0.1 bar more is 25Hp extra.

 

I have seen 25-35 hp per .1 bar spoken about often.

 

I'm not too sure about that; then again, I've been out of the Z32 loop for a while now. I do know w/ the Z32, the factory 370cc injectors will be a bottleneck to get that kind of power you're looking for.

EDIT: I did a bit more research to refresh my memory. Stock boost is around 7.25psi and increasing boost (w/ ECU flash) to 15psi will bring hp to 360-380hp; it is not advisable to run 17psi or higher on the stock turbos as it will generate significantly more heat than more boost (not to mention you'll kill the longevity of the turbos). For anything higher, Jim Wolf offers a rather popular turbo upgrade called the JWT Sport 500. Five hundred, as in rated for 500hp. And you will still have to ugprade the injectors.

///Michael

 

The rough equation I've been using is taking the manufacturer's numbers and calculating how much hp per psi. Using the 996 Turbo as an example...

14.73psi (pressure at sea level) + 10.15psi (0.7bar stock boost) = 24.88psi

415hp / 24.88psi = 16.68hp/psi

Increasing boost to 14.5psi (1bar) should give you roughly 488hp at the flywheel:

(14.73psi + 14.5psi) * 16.68hp/psi = 488hp

The actual number may be higher or lower. I like to be conservative so I will say "less than 488hp."

///Michael

 

thats a Stock turbo Z. on 91 and race gas.
this Z has dual intakes, 3" down pipes, 3" test pipes, 2.5" catback
Upgraded intercoolers. 740cc injectors and 300 degree fuel rail.

cams, throttle bodies, 2.5" intercooler/intake piping, Manifolds can still be added.
with those additional mods that would quite a bit more power!

i just wish 996TT's came with bigger turbos is all. i was expecting at least 600hp on a 3.6TT.


stock boost on 300zx's is 9.5psi. without upgraded intercoolers the teeny T25's do produce much more heat than boost at around 18lbs.
but more and more mods are coming out which is opening up the Z32 world to more power.


can a stock turboed 996 beat those numbers??

 

TQ seems to come on late but still impressive. Bring that car by and lets see how she performs.

 

all day long, most flash only cars will make that using a race gas mix and STD correction on a 2wd dynojet.

red line is a EPL flash car with 93 pump on a DJ, STD correct it and you're in the 460s.

https://www.6speedonline.com/forums/2605847-post22.html

 

It seems the Z has come a long way since I last owned one (DamonZ used to work on my Z's, BTW), but good grief. All that work, but still on stock turbos... I gotta ask... why?

Instead of doing all that work, on a 996, you could ship your K16's to Vivid Racing for a $1,400 16G upgrade or wait until a set of used K24's show up for sale for $2k-ish; and run'em all day long at 1bar w/o worrying about blowing up.

Robertp does raise a good point. Stock T22/25 were designed for mid-range power, but it is a bit laggier than the K16. Without having seen a K16 dynochart (stock or modded), I would compare the area under the curve between the K16 and T22/25.

///Michael

 

well i guess he wanted to see how much power he could get outta the little buggers.

Im currently debating whether or not i need a set of GT3076R's :P.