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Author Topic: Post up your N/A dyno results  (Read 16434 times)

GETLOW

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Post up your N/A dyno results
« Reply #30 on: October 11, 2005, 07:52:08 PM »
haha thanks for the offer dude, but sadly im in welly.
iv been for a ride in my mates 275rwkw r33 25det. thats got $$$$ of mods. but its crazy to ride in.

yeah i will just wait and plan out my mods. i have like another 8months or so before the waranty runs out. i will definatly talk to a lot of people about it and price everything up. at the moment im going to look in to doing some more to my car that i can do myself. mb have a go at a custom intake pleninum with maybe 2 throttle bodys etc. it could be trasferd easish to a 25de. you may ask why.. but im crazy and im bored most the time so it would be something fun to try and make.

i think the lowering, and the exhuast mite have already voided it. lol. the exhust does look stock tho.

save my r33 and kindly dontate your engine to me :D :P
1JZ VVTI R33 using a custom RB25DET gearbox (almost running)

Shred Motorsport
67 Pharazyn Street
Lower Hutt, Wellington
http://www.SHREDMOTORSPORT.co.nz
(04) 569 7469

Baffa

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« Reply #31 on: October 11, 2005, 09:03:31 PM »
Haha!
a VG30DE in an R33 liner!
thatd piss off the skyline purists!
itd go like stink tho!
sorry mate, i need this motor, its only been in my car for 1 month since my old one gave up, only 65ks on the new motor and 500kms on the clutch too!

MikeeR

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« Reply #32 on: October 19, 2005, 11:05:24 PM »
just a dyno question, how come people are showing wildly different torque figures, e.g 400nm for an rb25de when a new STi WRX pulls 412 nm and then others (i.e clean_R33) are showing 175ish nm (which sounds more realistic) ?
Is this dependant on the dyno ?? Because some of the turbo liners on here are pulling 750nm which is incredible given that an fpv F6 pull 550nm out of a 4.0 turbo 6. Just wondering...   :rolleyes:

Skyla

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« Reply #33 on: October 20, 2005, 09:12:23 AM »
Clean R33 will have lower torque figures than those of us with a RB25DE, he only has a 2L sohc (RB20E).
I have often wondered how the torque figures could be so high on my car, taking into account the factory readings at the flywheel are only 230Nm. I've been on a couple of different dynos now and the torque figures have been over 450Nm. Rolling road and hub dynos generally show different figures, usually hub dynos show higher torque figures.
So yes, I think the results are dependant on the dyno. Might be worth while talking to someone that is familiar with dynos and how they get there readings.
R33 GTS25, the 121rwkw 16 sec 1/4 mile whale snail

Taupo track 1, 1.56 (A1GP)
Taupo Track 2, 1.23
Taupo track 3, 47.89
Taupo track 4, 2.02
Manfeild, 1.30
Pukekohe, 1.17
Hampton Downs, 1.25

hg56

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« Reply #34 on: October 31, 2005, 10:29:48 PM »
I got 141kw 723nm torque atw in my GTS25 R32 with: cams, custom intake,2.5 " exhaust uhhhh and link em, was pretty happy considering my mates GTST with front mount 3" exhaust running 14 psi got 141 kw also hehe, but alas im turboing it in a couple of weeks so ill be out of the n/a club :'( lol
« Last Edit: October 31, 2005, 10:32:34 PM by hg56 »

Skyla

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« Reply #35 on: October 31, 2005, 11:18:44 PM »
Impressive:notworthy , did you have any head work done as well, is this result still with a 10:1 compression ratio?
Just curious, what profile cams are you running and are you running adjustable cam gears?
I'm still undecided on what profile I'll have my cams ground too, was thinking 272 duration with 8.4mm lift.
R33 GTS25, the 121rwkw 16 sec 1/4 mile whale snail

Taupo track 1, 1.56 (A1GP)
Taupo Track 2, 1.23
Taupo track 3, 47.89
Taupo track 4, 2.02
Manfeild, 1.30
Pukekohe, 1.17
Hampton Downs, 1.25

hg56

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« Reply #36 on: October 31, 2005, 11:28:27 PM »
Na no head work i was gonna but i decided against it for future turbo plans, i have a sheet with all my cam info, apparently they are the most aggressive ones i could get without getting lifter caps or something, i was going to go with adjustable cam gears but the benefits were not enough woulda been like 1kw, but i need more power now as even tho i get same hp figure as my mate turbo still gets better torque figures and midrange power so it make it harder for drifting.

Skyla

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« Reply #37 on: November 01, 2005, 06:08:38 AM »
Any chance you could share the cam info? pretty please;)
Are they a complete new cam or have the factory ones been reground and the valve springs replaced with harder ones?
I'm sorry for all the questions, but it's so rare to find anyone that has  actually worked a N/A, most people just end up changing to a turbo.:cool:
723Nm thats huge torque, was they dyno a rolling road or hub dyno?
cheers
Rach
R33 GTS25, the 121rwkw 16 sec 1/4 mile whale snail

Taupo track 1, 1.56 (A1GP)
Taupo Track 2, 1.23
Taupo track 3, 47.89
Taupo track 4, 2.02
Manfeild, 1.30
Pukekohe, 1.17
Hampton Downs, 1.25

hg56

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« Reply #38 on: November 01, 2005, 11:30:42 AM »
Ok ill write down what it says on the sheet, btw it was on dynapack dyno so hub and i didnt have to get any mods done to the valve springs and they are regrinds.
Intake:
cam lift : 0.348", rocker ratio : 1, valve lift : 0.348", duration: 210, centerline peaklift atdc: 110
Exhaust:
cam lift 0.305", rocker ratio:1, valve lift: 0.305", duration: 194, peak lift: 110

Hopefully that helps you out, i didnt notice too much of a difference with the cams and a standard ecu, when i chipped my own ecu i noticed a big difference and then again when i got the link em it made a little more difference, if you were interested i have a pretty good tune for an rb25, if you got hold of an r32 gtst ecu or even an r32 GTS25 ecu i could do it for ya would be cheaper than a link, but anyways hopefully that makes some sense.

Skyla

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« Reply #39 on: November 01, 2005, 10:13:52 PM »
Thanks for that:) , umm did kelford cams do the regrind? Were the reground cams originally designed to run with the standard ecu?
My cars a R33 GTS25 with vct. I've already got a Link ECU in the car ready for the cams.;) I'm in the process of researching cams that would be good to run in a RB30DE engine that will be built up for my car.
R33 GTS25, the 121rwkw 16 sec 1/4 mile whale snail

Taupo track 1, 1.56 (A1GP)
Taupo Track 2, 1.23
Taupo track 3, 47.89
Taupo track 4, 2.02
Manfeild, 1.30
Pukekohe, 1.17
Hampton Downs, 1.25

hg56

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« Reply #40 on: November 02, 2005, 12:00:03 AM »
I originally told kelfords(who do the regrinds) i was going to be running a link, so they made one to that spec; however my chipped ecu ran it just fine, just not quite as well as the link, the link will be good for the RB30DE that will be a good project, i was thinking about going that way rather than turbo but i just like the idea of turbo better, blow off valve lol

redlinegtst

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« Reply #41 on: November 02, 2005, 10:49:42 AM »
Just a question... are you guys talking about torque at the wheels.... i.e after it has been through the diff?

You might find that your 750nm figure is multiplied by the diff ratio and actually is more like 174nm at the flywheel...

Skyla

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« Reply #42 on: November 02, 2005, 10:55:19 AM »
Quote from: redlinegtst
Just a question... are you guys talking about torque at the wheels.... i.e after it has been through the diff?

You might find that your 750nm figure is multiplied by the diff ratio and actually is more like 174nm at the flywheel...


In some cases it is at the wheels and others at the hub, but yes in all cases it has been through the diff.
R33 GTS25, the 121rwkw 16 sec 1/4 mile whale snail

Taupo track 1, 1.56 (A1GP)
Taupo Track 2, 1.23
Taupo track 3, 47.89
Taupo track 4, 2.02
Manfeild, 1.30
Pukekohe, 1.17
Hampton Downs, 1.25

redlinegtst

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« Reply #43 on: November 02, 2005, 11:04:13 AM »
Quote from: hg56
I got 141kw 723nm torque atw in my GTS25 R32 with: cams, custom intake,2.5 " exhaust uhhhh and link em, was pretty happy considering my mates GTST with front mount 3" exhaust running 14 psi got 141 kw also hehe, but alas im turboing it in a couple of weeks so ill be out of the n/a club :'( lol


So in this case, the torque is approximately 168nm at the flywheel (using 4.3)

So to answer MikeeR: that is why there is such a difference. Because car manufacturors all measure at the engine.

Munkvy

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« Reply #44 on: November 03, 2005, 10:59:02 PM »
Quote from: BADR33
haha thanks for the offer dude, but sadly im in welly.
iv been for a ride in my mates 275rwkw r33 25det. thats got $$$$ of mods. but its crazy to ride in.

yeah i will just wait and plan out my mods. i have like another 8months or so before the waranty runs out. i will definatly talk to a lot of people about it and price everything up. at the moment im going to look in to doing some more to my car that i can do myself. mb have a go at a custom intake pleninum with maybe 2 throttle bodys etc. it could be trasferd easish to a 25de. you may ask why.. but im crazy and im bored most the time so it would be something fun to try and make.

i think the lowering, and the exhuast mite have already voided it. lol. the exhust does look stock tho.

save my r33 and kindly dontate your engine to me :D :P


Hey Im Vivian, met you outside mitsi Friday night, have the dead GTSt, have you thought about this as an option:

http://www.skylinesdownunder.com/forums/showthread.php?t=46994

dirt cheap as a replacement, or just strip it for parts...
Rallying thanks to Shred Motorsport http://www.shredmotorsport.co.nz