T.c.c.a.v. Dyno day sunday 25/09/11 doctor drift tottenham

[joey]

just wondering how this works, you made 155.1 kws and 395nm from you 2 jz turbo
and my 3sge made 154.7 kws and 364 nm of torque go figure .i would have thought your turbo and being a 3 litre 6 would have higher torque figures and also my hp as well

Keep in mind that your engine is not stock, had the internals played with and running a fully programmable ecu; compared to his stock engine with a cat back maybe an intercooler and boost controller....
Lots of gains are to be made from the chaser with just a few bolt on parts, i was making 222kw with just a full exhaust, intercooler, pod filter, boost controller and piggyback fuel computer on a safe tune.

[boxh34d]

Torque on a dyno can be misleading at best. I've compared dyno sheets from the same car, same (to my knowledge) correction factors, same dyno, but newly rebuilt vs old engine. The new engine made more power through every point of the RPM range, and yet the dyno calculated torque for the new engine was lower in some areas compared with the old engine. When HP = lb.ft * RPM / 5252, the amount of constants suggests that at a given RPM point, for more power to be made, more torque has to be made as well. Take the NM readings with a grain of salt.

As for how a NA 2L, and a boosted 2.5L (effective displacement about 4.4L [ 2.5L x 1.75PR]) can make the same power I got NFI. Even with the 2L being hugely efficient and spinning some big RPM, and the 1JZ being fairly lazy and using tame RPM, it still doesn't work out in my mind.

[andrew_mx83]

well yeah, power is a function of RPM, so effectively to make more power you need to make the more torque, or make it higher in the rev range. i assume the 3s had its peak figure a lot higher than the 1j.

from what i understood, dyno's only measure torque (tractive effort really) and the power is then calculated with the above formula?

[pozman]

keep in mind that this dyno was running no corrections on a reasonably warm day, bks car made about 15% les power on this dyno than it had previously on a dyno-dynamics

also my bundy made 111kw on 33in mud terrains

paul

[frankorbec]

Hi guys. I don't want to muddy the waters here, but as everyone knows, different dynos give different figures. I recorded all KW results of attendants on the day, and although it seemed many of those who attended got lower KW readings than expected, we can compare vehicles tested on the same dyno on the same day quite fairly.
Pozman's bundy proved very impressive with 111KW at the rear, and even a new ford G6E Turbo with 264.5 KW at the wheels was hugely impressive, considering new the motor is rated at 270KW. Most of the 1.6 to 2.0 litres ran between 45KW to 75KW in standard form, and some of the modified versions ran up to 108KW without forced induction (2003 Sportivo). If anyone wanted to confirm any figures, just message me, and i will send them through.
Frank

[boxh34d]

Hi there Frank.
I'm not questioning the actual power figures from the day. Mine was 8%ish down compared with other runs on another dyno - as accurate as I would expect from one dyno to another. My biggest issue is the AFR readings being very lean, and it seems I'm not the only one. No big deal though for me.

Is there any chance of you posting up the results with all the runs so everyone can see how they did compared with similar cars?

[frankorbec]

You are absolutely correct about the AFR figures. This just highlights the importance of calibration, and looking after your tools.
(Yes, i am one of those guys where every tool has its place, and everything must be cleaned before it goes back, which is why i don't lend out tools.)
I am happy to put up the figures tonight, just as soon as i get the little ones off to bed...

Frank

[frankorbec]

Dyno Day results TCCA 2011.

1 Ross 1989 A31 147KW
2 Terry 1975 TA22 52KW
3 Con 2000 Corolla 60KW
4 Ross G 2004 BA 181KW
5 Adam 1976 TA23 43KW
6 Brendan 1976 TA23 45KW
7 Lee 1989 MA71 230KW
8 Omar 1995 Soarer 146KW
9 Paul 1985 Bundy 111KW
10 Glen 1979 RA45 154KW
11 Pete 1976 KE35 60KW
12 Dave 1973 TE27 71KW
13 Darren 1974 KE30 12A 99KW
14 Trung Chaser 155KW
15 Tom 1994 CD5 75KW
16 Philip 1997 AE111 82KW
17 Tim 2003 Sportivo 107.9KW
18 Chris 1989 AE 93 61.9KW
19 Sean 1993 Civic 96KW
20 Rob 1986 Celica 82KW
21 Matthew 1986 AE82 54.6KW
22 Andy 1989 AE92 64.6KW
23 Cancelled Car
24 Will 1990 300ZX 116KW
25 Chris 1992 Cressida 209KW
26 Joey R32 GTR 257KW
27 Tim 1977 RA28 137.5KW
28 Pete 2007 Swift 63KW
29 John 1997 Chaser 219KW
30 Mahil 1998 Chaser 171KW
31 Oscar 1973 TA22 48KW
32 Adam 1998 Chaser 171KW
33 Sang 2011 F6E Turbo 264.5KW
34 Pete 1985 Skyline 65KW
35 James 1983 KE70 25.3KW
36 Rowell 2003 Sportivo 102KW
37 Chris 93 Commodore 93KW
38 Andrew 1999 S15 169KW
39 Ben 1979 KE70 27KW

I hope settles some discussions...and start up some new ones!!

Over 4300 KW of power rolled on the day. Some very impressive results.

Frank

[Celica RA45]

hi frank my ra45 was na with a 3sge glenn spec motor

[timbosaurus]

Given the readings seemed to be a bit low across the board, I was quite happy with ~140kw at only 7psi.

It was a nice close workshop for me, so I might take it back to him to tune when I get a programmable ECU and can wind up the boost.