How much power do you have?

Ok this :useless: So unless you have a scanned unedited dyno plot you are relegated to estimated power and thus it will be view that. Ok Fair rules of this thread.
http://www.kiwiperformance.co.nz/misc/razordyno.gif

Damn it I want to see RPM not KPH :loser:
But 777nm :eek: :eek: :eek:
can you convert that to lb'ft? oh and your making at the wheels almost 3 times as much hp as I have at the crank :icon16:

Will post pic when I get home, if this post works (which would imply the revamped AF will keep me logged in for more than 1/2second at a time, so I can actually post). :p

Anyways, I have 173kw at the wheels, according to my dyno sheet. (Pity that was done with a dodgy AFM and a clogged cat.)

Ok...here we go...

Ok...here we go...

is it just me or is something missing? :sly: :p

Ok, here we go:

http://files.automotiveforums.com/uploads/280241GSW_dyno_16.05.2002-small.jpg

"is it just me or is something missing?'

Hehheeh ...:icon16: Ok, here we go again...http://www.automotiveforums.com/vbulletin/attachment.php?attachmentid=2699

I will post numbers when I get her done. Looking for about 600 to the rear wheels.

Here is my Stang run, blowing out the spark at 4800rpms.

http://www.automotiveforums.com/vbulletin/attachment.php?attachmentid=15925

See if this works?

It works :D but looks pretty ugly where (I guess) the spark goes bye bye :icon16:

Here is mine

http://www.jouleusa.com/shop%20projects/dynoslip.jpg

You can say that again.

She is fixed now, pushing twice the amount of boost, and spinning up to 7k. She is easily over 400 now.

If I cannot shoehorn the other engine (351w with a big single) in the R32 GTR, I'll pull the Mustang engine and swap them around. Either way they will both be a blast to drive.

tofstchvy,

DAYYYMN! You have a big single? A T51 right? That thing is putting down some good numbers.

Have you ran her yet?

853PS...Oh Mah Lawd...

wholy chit!!!!

AWESOME POWER :worshippy

My car has the hks 2.8 kit and the t-51 spl bb. That run was at 1.8 boost. It is set to run at 2.4 boost. The dyno couldn't handle anything more than that. Unfortunatly my car has been stuck in an importing struggle for the past nine months. It is hard to say if I will ever get the car. (BTW I am trying to do it the legal way.)

It is set to run at 2.4 boost.
what you mean like 34psi of boost, that's a lot of boost, mind me askng what mod's you got to back up your boost setting's, that much boost will blow a headgasket off any street car!!

386 AWHP at 1.02 Bar.....
est 420 AWHP at 1.2 Bar.....
as you can see, I was heading for an easy 420 on the second run at 1.2 bar, when one of the straps broke....whoops!

I had to settle for a third run of 386. Hell!

Question?
because most of get our cars tested on rolling roads which will give power at the wheels. Everyone likes to talk about power att eh crank.
Does anyone know what the powertrain losses are for a GTR? ie anyone had an engine on a dyno then rolling road too?

It has to vary depending on the torque split going to the front.

I have heard its normally around 25%, but that should be with the fronts engaged. 25% for a manual and RWD would be insane.

The average on RWD with the skylines vintage car is about 20%, and AWD car from the same era is bout 30%, so if running on only a RWD dyno, (i.e. fround drive disconected) then 20% would be a nice conservative power loss figure to go with, but you probobly want to allow maybe 2-3% each way as margin for error.

Haven't scanned the graph yet.

168KW from my 25T with stock boost and slipping clutch (razor can verify :))

tazdev,

Do you know the conversion from KW to HP. For some reason, I always forget that one. I am thinking its like 1.2:1, but I could be way off. I have a lot of numbers running around in my head :screwy:

kw - hp x 1.34 hp - kw x 0.746

ps - hp x 0.986 hp - ps x 1.01

ps - kw x 0.735 kw - ps x 1.36

any other numbers you require :)

so my T has 225hp

tazdev,

Kewl, thanks man!

I went on motorex.net site and my father told me the specs aren't that good...

0-100 mph 13 secs, a suzuki esteem is faster than that...I don't understand...plz someone explain me :banghead:

Ferrari specs aren't that good either, but poeple buy them.

And your father drives a?

Its not a cars ability to go from 0-60, or 0-100, or run the 1/4, or top speed, or brake 60-0, or get so many g's on the skid pad, or attain so many mph in the slalom, or the way the seats feel, or the way the car looks, etc. Its combination of all of these that make a great car?

Your father has never even seen one, let alone driven one. So, whats your point?

with 3 mods, boost controller, exhaust, and intake the GTR will produce about 380hp, but its not really the total power we are looking at that makes the GTR one of the best cars in the world. Of course the are a lot of cars that can beat it in the 1/4, there are a lot of cars that can beat it a road race, but you would be hard pressed that could beat the GTR in every thing, but even if you could, that car is still no GTR:D

Boost: max 2.2 Kg/cm2
Horse Power: 800 Wheel HP (920 BHP on Crank) @ 1.85 Kg/cm2 0-400m time: 10.95 SEC ( with stock gearbox)

Electronics: APEXi Power FC-PRO Drag ECU


Bottom end: HKS 87 mm forged pistons (x6)
HKS H-Beam connecting rods (x6)
JUN high capacity oil pump


Top end: JUN 272/272 lift 10.8 mm camshaft
Custom porting and polishing of cylinder head and runners with
extensive flow bench profiling
HKS exhaust manifold gaskets (x2)
HKS metal head gasket 1.2 mm
JUN cam pulley (x2)
Nissan Infinity 90mm throttle body assembly

Turbo system: T88H-34D GREDDY Turbine
HKS DRAG Intercooler
HKS Drag exhaust with Titanium Muffler
GREDDY Type c wastegate
Fuel system: NISMO 280 L/hr intank fuel pumps (x2)
SARD 1000c injectors (x6)

http://rcweb.net/gallery/albums/userpics/10119/920BHP.JPG

more details at www.speed-d.com (http://www.speed-d.com)

Car: 1991 R32 GTR

Kms: 236,000km

Mods: 3 inch exhaust front pipes back (cast factory dumps), Power FC , Tomei 260deg 9.15mm lift cams , M's air filters.

Boost: 10/11psi on factory turbos

a nice conservative tune this one considerate of the age of the engine. The timing and fuel maps are nice and safe. Note this is on a dyno dynamics dyno in shootout mode, there dynos read alot lower than the dynojet or hub style dynos.

dyno found here;

http://www.skylinesaustralia.com/forums/attachment.php?attachmentid=26559

Very nice.

How does the car idle compared to the stock cams?

Nice lumpy idle. Mine is lumpier due to the cam timing. I have gone for more power in the mid range by having 2degrees retard on the intake and 8 degrees on the exhaust. There is about 15-20hp to be gained by advancing both cams at the same boost but, it moves the power up the rev range. I wanted to keep the revs around 6500rpm for peak power. The turbo's make fullboost by 2800rpm. If I fit aftermarket split dump pipes and muck around with the timing map I can probably drop that another 300-500 rpm.

I also have lightweight pulleys fitted and have removed the factory belt driven fan in favour of an electric 16inch thermo fan and I also have a lightweight flywheel. This all adds to the response of the engine and gets you great exit speed out of corners.

I am a Mustang guy, so I know those mods very well:)

I am going to set mine up the same as your, except I will be going with a little higher comp ratio. Everything you have done to your GTR, to me, is the right thing to do, but I am not sure if I would go that high of a duration. I would be looking at 256/9.1 260/9.1, unless you really like the idle, and drivability of the 2 260s?

SkylineUSA,

The Tomei 260degree cams are very drivable, the idle is just a nice touch, the low speed vacume is still pretty decent giving the car a stock like low speed character. The Tomei cams also retain the same factory stock base circle and in most cases don't need any shims (mine didn't) and the 9.15mm lift is the largest lift cam you can fit without machining the head. Some of the other brands only go as high as 8.7mm. I did my homework on the cams before rolling my car into the shed to change them and for a street / circuit car these are the pick of the crop.

As an example a freind of mine over here in Perth fitted them to his car, he has 2530 sized hiflows and picked up around 100hp over factory cams playing with the cam timing. I think he ended up with about 8 and 10degrees advance on them. His end figure was 527rwhp (dyno dynamics) on our premium pump fuel at 1.3bar.

Haven't scanned the graph yet.

168KW from my 25T with stock boost and slipping clutch (razor can verify :))


replaced stock (screwed) plugs with new NGK iridiums R32 GTR clutch and re-dynoed at 174KW at the wheels (233HP for skylineusa:) ) . This will be the base figure for any future modifications.

replaced stock (screwed) plugs with new NGK iridiums R32 GTR clutch and re-dynoed at 174KW at the wheels (233HP for skylineusa:) )

Thanks Taz :p

redynoed again with decent clutch good plugs and a nice mild day.


176.1kw (236hp) aprox 525Nm (387.45 ftlb) torque @ only 10.4psi (0.7bar)

http://pic10.picturetrail.com/VOL348/944371/5655104/113493623.jpg



installing apexi AVCR shortly to try 12 - 13psi and see what gains can be made on the standard turbo and intercooler before changes are made :)

410.7rwhp (306rwkw) at 15psi

GT3540R .82 EXH A/R on high mount manifold
external gate
850cc inj
poncams (all other internals stock)
power fc & boost kit
bosch 044 fuel pump
fuel pres. reg.
turbo back exh.
fmic
Z32 AFM

http://files.automotiveforums.com/gallery/watermark.php?file=/500/226275R33GTdyno3.jpg

http://i115.photobucket.com/albums/n282/wingnut_GTR/Car%20pics/DynoSheet2.jpg
http://i115.photobucket.com/albums/n282/wingnut_GTR/Car%20pics/th_MVI_1163.jpg (http://s115.photobucket.com/albums/n282/wingnut_GTR/Car%20pics/?action=view&current=MVI_1163.flv)