in your opinion has the tester in this vid given a true power figure?
the motor appears to have a problem just after x over & around 8k however this is not evidant on the road, if he has feathered the throttle @ these two points will it reduce peak power figures or is this an acceptable way of testing?

Click here to watch dyno-disaster

 

(8:19 PM 1/25/2006) Bbasso: was your car cold for the dyno runs?
That is some strange dyno, how does he see your A/F ratio and what is he tuning it with?


it was just a trip to the rollers, he was'nt tuning but i had him earmarked to tune new set up (bciii+ & power fc), i'm brutal with this computer s?it, it took me a whole day to get the footage off my camera & on here but i wanted some other opinions, did'nt know what to think of him & did'nt want to sound like a w€nker cause i did'nt get the result i wanted,
mods i/h/e spoon p73 on '97 jdm itr

 

The dyno didn't look that bad. I have a 97 Jdm ITR as well.

All stock internals.

Pwdjdm CF Intake/jdm itr header/2.5" cat with ctr catback with a lot of bottlenecks

Came out with: 173hp :: 128tq

It looks like you hit 171hp so that seems about right. Not sure about your tq numbers.

I'm running the oem 97 jdm itr ecu as well, so 6k vtec crossover.

 

the car had previously put down 222bhp (flywheel) 150tq where on this run 203 & 142, before i get flamed i understand power figures change all the time due to different circumstances but the power curve shows a big drop off after x over which is'nt apparent in my driving, my intention was to get some feedback on how you lot thought the tester conducted the test(good bad or indifferent) is this obvious feathering of the throttle @ x over going to cause my power curve to drop off or is this a perfectly normal practice & not going to interfere with results,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KISS ME LUCKY CHARMS &raquo;</TD></TR><TR><TD CLASS="quote">the car had previously put down 222bhp (flywheel) 150tq where on this run 203 & 142, before i get flamed i understand power figures change all the time due to different circumstances but the power curve shows a big drop off after x over which is'nt apparent in my driving, my intention was to get some feedback on how you lot thought the tester conducted the test(good bad or indifferent) is this obvious feathering of the throttle @ x over going to cause my power curve to drop off or is this a perfectly normal practice & not going to interfere with results,</TD></TR></TABLE>

I've never seen any feathering during the actual gear pull itself. It's full throttle all the way to redline.

Same way where if you were racing. You could imaging if you were on a straight racing someone that was equally matched and you suddenly feather at the vtec crossover.

Not sure why he did that. But as long as he floored it again afterwards, the graph should still look the same, just a flat spot or dip around the crossover from him feathering. But peak should be the same still I think.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kay_animation &raquo;</TD></TR><TR><TD CLASS="quote">
just a flat spot or dip around the crossover from him feathering. But peak should be the same still I think.</TD></TR></TABLE>

that flat spot at x over was what concerned me, but surely this fact alone means its not showing a true power curve leading me to think something was amiss.
on the day there were 3 or 4 itrs tested all the other cars pulls were clean with no feathering of throttle leaving me suspicous, i just wanted to see if anybody else thought the way the test was conducted was questionable but judging by the amount of people who viewed V's post, i'll conseed there was nothing wrong with the pull, tanx