The Kingsman movie church
Discussion
8Tech said:
AMDBSNick said:
8Tech said:
AMDBSNick said:
Beefmeister said:
Indeed, have you put wky aftermarket Halfords special DRLs on your lovely DB9? Why, God, why?!?!
EFA http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I will be finishing my intake and breather mods in the next few weeks, so why not bring your new DBS down and lets see how much power it makes compared to my measley DB9 on the dyno, instead of just reading the spec sheet? Lets see how much it really has.
Up for the challenge? We can see then how accurate the spec is compared to the actual after transmission and tyre losses are accounted for.
Edited by 8Tech on Tuesday 31st May 13:11
Here's my fake one yesterday...complete with stock exhaust manifolds and 4 cats still fitted, so I still have a way to go yet.
8Tech said:
8Tech said:
AMDBSNick said:
8Tech said:
AMDBSNick said:
Beefmeister said:
Indeed, have you put wky aftermarket Halfords special DRLs on your lovely DB9? Why, God, why?!?!
EFA http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I will be finishing my intake and breather mods in the next few weeks, so why not bring your new DBS down and lets see how much power it makes compared to my measley DB9 on the dyno, instead of just reading the spec sheet? Lets see how much it really has.
Up for the challenge? We can see then how accurate the spec is compared to the actual after transmission and tyre losses are accounted for.
Edited by 8Tech on Tuesday 31st May 13:11
Here's my fake one yesterday...complete with stock exhaust manifolds and 4 cats still fitted, so I still have a way to go yet.
Fair play for having an ameteur crack at performance development, given the wide band of absolute headline power numbers possible for outright performance, I will reserve my comments on your claimed figure, it could be right, it could be wrong - but I do have a well informed professional opinion! What is utter horse ste though is your peak power speed, absolutely no way the spec you have could 'physically' produce peak air consumption (therefore peak power) so high up the Rev range bringing the whole test into question. With the base engine spec you have you could take the throttle away completely and run (on a dyno) the inlet manifold open to atmosphere, have 1meter long exhaust primary pipes and no cats - and not even then would the peak power speed be what your result states - that's how far wrong that curve is!!!
As you mention it, what was your wheel curve, because your result states flywheel meaning there is a correction curve going on we can't see?? I ask to be helpful, because Somewhere your test has fallen over, it could be in that calculation? If wheel power is peaking as high up the Rev range as calculated flywheel power then unfortunately the whole raw data-set is horse ste too, as well as the calculated post coast down curve.
Post up your mass airflow recordings from the cars own mass airflow sensor, you can do that running the car down the road saving the bother of dyno testing. Airflow in must equal power out (with a few exceptions) and from my database of data you punch up an airflow figure, I will tell you the BHP. Much more scientific and avoids the horse ste! But I sense you won't do that and continue form of posting dubious dyno test after dubious dyno test. Where are all the engineers gone? So hard to find stuff being done right these days.
Gassing Station | Aston Martin | Top of Page | What's New | My Stuff