View Full Version : Got my exhuast :)
JA SV8
01-07-2005, 02:00 PM
Hey,
I just got my Di Filippo exhaust fitted today, sounds better, a bit loud down low but all good, they did a dyno run and i now have 220rwkw, which is a bit up on the 186 i had a couple of months back :) If could be wrong, but i am happy with the exhaust overall :)
Does anyone know wot a -0.9 MAP is? and Petrol 10.04 is? (from dyno sheet)
Thanks
James
OLS108
01-07-2005, 02:27 PM
Hey,
I just got my Di Filippo exhaust fitted today, sounds better, a bit loud down low but all good, they did a dyno run and i now have 220rwkw, which is a bit up on the 186 i had a couple of months back :) If could be wrong, but i am happy with the exhaust overall :)
Does anyone know wot a -0.9 MAP is? and Petrol 10.04 is? (from dyno sheet)
Thanks
James
thats a massive power increase mate CONGRATS :thumbsup: where did u get the Dyno done ??
SV8VY
01-07-2005, 05:03 PM
Did you also get an edit done as well?
220 just from the exhaust is not possible.Any one telling you otherwise is pulling your leg.
markone2
01-07-2005, 05:22 PM
I got 219rwkw from full exhaust..................................+ Mafless edit ;)
chillicatqld
01-07-2005, 07:04 PM
Damn all this humidity must be going to dyno operators heads!
MRVZSS
01-07-2005, 07:37 PM
mmmmmmmmmmmm. I ran my car on the dyno last week, it ran 176.2Rwkw............................ I then emptied the ash tray and various cigarette butts from inside the car, and due the weight reduction, it ran 297.5Rwkw................................. Im happy with the result, but i think she's got more.............................. :(
They should change this forum name to rippley's (Believe it or not)..........
Whats next!!!!! :D :) :rolleyes: :eek: :bash: :lol:
Seems that:
*The Dyno Is full Of S#*T
or
*The Work Shop Is Full Of S#*T
or
*The Owner Is Full Of S#*T
JA SV8
03-07-2005, 09:44 AM
Yeah it seems a little high, i was not there when they did the dyno test, but i was having a closer look at it and the top speed was 138km/hr so they did it in 3rd, where the first test was in 4th, so there is a obvious difference, i will get them to do it in 4th next time, which is a bit of a let down, not due to the numbers it reads out, just the fact they did it that was so its wrong.... Thats life though :D and it makes more sense now :)
Cheers
James
HRT Stroker
03-07-2005, 10:02 AM
MAP = Manifold Absolute Pressure. Fuel is most likely your Air Fuel Ratio, which is very rich at 10.04:1. Would be suprised for a VY's AF to go that low, even for a stocker. This was common in VT/VX Gen 3's as thats how Holden killed the power off, drowned it with rich mixture.
A tune ("Edit") will bring this up to around 12.6 - 13.1:1, giving you back the standard engines power as it was designed to have!!! Won't hurt your fuel economy figures either!
Don't worry what the dyno sheet says - does it DRIVE better?? If so then your on the right track.............
HRT Stroker
Tron2004
03-07-2005, 12:04 PM
mmmmmmmmmmmm. I ran my car on the dyno last week, it ran 176.2Rwkw............................ I then emptied the ash tray and various cigarette butts from inside the car, and due the weight reduction, it ran 297.5Rwkw
Washing the car helps too... less dirt = less wind drag!!!
Tho not sure if the dyno would pick this up. :lol: :lol: :lol:
PepeLePew
03-07-2005, 12:45 PM
Hang on....
Same dynos or not? Any other mods in the middle? How many km's on the car at previous dyno and this one?
No edit?
Just checking the whole picture...
And before we go canning the number, where was it dyno'ed?
JA SV8
03-07-2005, 01:25 PM
I looked at it again, its very odd.
I got it done in April it has 186rwkw, which seems about normal, then on friday they have done a before and after (i didnt realise till now) and before it had about 212-215rwkw and after 220rwkw, which i dont get as they car cant really go from 186 to 212ish with nothin done but a few 1000kms. They did the one in April in 4th gear and the last 2 in third, so im guessing 3rd gives a higher reading than 4th, its only made more power up top, feels a little better up top too, the guys did ask if my car had been tuned, which it hasnt.. and it was the same dyno.
I am confused :confused: but i figure its made about 5 or so rwkw and thats what matters (now i understand what they did on the dyno) the actual numbers arnt so important just the gap between the lines..
Also the air fuel was 12.02 when done in april and now 10.04... bit odd..
Ta
James (believe it or not :p )
Scoota
03-07-2005, 02:07 PM
They did the one in April in 4th gear and the last 2 in third, so im guessing 3rd gives a higher reading than 4th, its only made more power up top, feels a little better up top too, the guys did ask if my car had been tuned, which it hasnt.. and it was the same dyno.
Also the air fuel was 12.02 when done in april and now 10.04... bit odd..
Ta
James (believe it or not :p )
James,
10.04:1 is way to rich at wide open throttle. Your torque must be up the '$H!te', Who ever carried out your edit hasn't tuned it correctly.
As for the power between 3rd & 4th gear, whether I do a run in 3rd or 4th on my Dyno there shouldn’t be any difference in power, The torque will only be higher in 3rd.
With a good edit and the Di Flippo exhaust, I suprised you dont have closer to 230rw/kw as I see on my dyno.
Cheers Scotty.
JA SV8
03-07-2005, 02:16 PM
James,
10.04:1 is way to rich at wide open throttle. Your torque must be up the '$H!te', Who ever carried out your edit hasn't tuned it correctly.
As for the power between 3rd & 4th gear, whether I do a run in 3rd or 4th on my Dyno there shouldn’t be any difference in power, The torque will only be higher in 3rd.
With a good edit and the Di Flippo exhaust, I suprised you dont have closer to 230rw/kw as I see on my dyno.
Cheers Scotty.
Scotty,
I dont have an edit yet, which is why the power readings are confusing... And it should be close to 230rwkw with it :)
Cheers,
James
OLS108
03-07-2005, 02:38 PM
hang on guys ! My VX auto LS1 made 217rwkw with MCAI, genie's and 2'1/2 cat back. on POWER TORQUE's dyno :D but with cat back only it would be highly unlikey IMHO
BTW my car has only done 118,000k's ;)
Tonner
03-07-2005, 02:51 PM
Washing the car helps too... less dirt = less wind drag!!!
Tho not sure if the dyno would pick this up. :lol: :lol: :lol:
dusty cars are faster than clean cars
JA SV8
03-07-2005, 02:56 PM
Just for everyone, i got the exhuast for sound :) not for power, the power is a nice add on and will help when i get it tuned.
Thanks for the comments.
James
Scoota
03-07-2005, 07:14 PM
Scotty,
I dont have an edit yet, which is why the power readings are confusing... And it should be close to 230rwkw with it :)
Cheers,
James
Sorry James, I should have read your post more closely. :bash: I think i still had sleep in the eye's.
Cheers, Scotty.
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