Dasdubber DAS Resto Haus
5,746 posts · joined Aug 2002 ·
All good info CT - thanks for sharing it!
dyno test this morn -
Boostn Wolfsburg Wizard
657 posts · joined Apr 2005 ·
I have had back to back figures on a dyno. An extra 20 kw that was not real.
The dyno measures the amount of resistance your car can push against at a certain speed.
So depending on the calibration figures will vary. You can "FOOL" the dyno into being a happy dyno, but what's the point when it does not translate to the track.
Just do your mixtures so it is safe, and the richen it up slightly to be very safe, you will loose a few hp but the engine will last longer.
The real truth of power is the mph you run over the quarter. (power to weight) And don't worry even if it wheel spins the mph will be up by a few.
The dyno measures the amount of resistance your car can push against at a certain speed.
So depending on the calibration figures will vary. You can "FOOL" the dyno into being a happy dyno, but what's the point when it does not translate to the track.
Just do your mixtures so it is safe, and the richen it up slightly to be very safe, you will loose a few hp but the engine will last longer.
The real truth of power is the mph you run over the quarter. (power to weight) And don't worry even if it wheel spins the mph will be up by a few.
1303Steve Scirocco Rare
8,650 posts · joined Aug 2002 ·
Hi
This is off subject but relates dyno power out put figures. Dyno dynamics did a test on power loss through dynos. They used a 6 cyl Falcon, they removed the transmission, did a power run, then hooked up the transmission, then hooked up the diff through a hub dyno. In all cases they had an identical power figure.
The power output can vary depending on how hard the car is pulled down on the dyno, tyre pressures, allowing the tyre to roll up on the front roller etc so lots of variables.
Most Dyno Dynamics operators have an automatic feature to adjust for barometric pressure, ambient temp throughout the day. Some devious operators will alter these figures and the dyno software will compensate usually giving a higher reading. So look at the green writing on peoples dyno charts that they put on the web, there has been fudging going to get a high figure. At sea level you should see a (BP) barometric pressure of around 101 kpa, a little less at higher altitudes also the (AT) ambient temp and (IT) inlet temp should be a realistic figure for the location and time of year.
Steve
This is off subject but relates dyno power out put figures. Dyno dynamics did a test on power loss through dynos. They used a 6 cyl Falcon, they removed the transmission, did a power run, then hooked up the transmission, then hooked up the diff through a hub dyno. In all cases they had an identical power figure.
The power output can vary depending on how hard the car is pulled down on the dyno, tyre pressures, allowing the tyre to roll up on the front roller etc so lots of variables.
Most Dyno Dynamics operators have an automatic feature to adjust for barometric pressure, ambient temp throughout the day. Some devious operators will alter these figures and the dyno software will compensate usually giving a higher reading. So look at the green writing on peoples dyno charts that they put on the web, there has been fudging going to get a high figure. At sea level you should see a (BP) barometric pressure of around 101 kpa, a little less at higher altitudes also the (AT) ambient temp and (IT) inlet temp should be a realistic figure for the location and time of year.
Steve
LIFE IN THE LOW LANE All people have the right to stupidity but some abuse the pr
2,534 posts · joined Mar 2007 ·
Not if you know someone who has one and you are good friends with them!!! One of my other cars(Corolla Sportivo) has done something like 50 odd power runs on CES' dyno for development work and to benchmark all the mods etc I made to the car. I started with 96kw(128.74hp) and finished with 121kw(162.26hp) The seat of your pants dyno doesn't always tell the truth and a dyno tune for adjusting things like mixtures,timing etc is the only way to go. You change your exhaust system and watch the mixtures change to the point where you could advance the timingr couple of degrees and gain more power.vw54 wrote:The Dyno run aretoo expensive to go back to back for data purposes
If you are spending big $$$ on building an engine then why not spend on setting it up properly to avoid what could end up being costly in the long run.
Just make sure that when you find the dyno tuner of your choice keep going back to them otherwise you will go crazy with the insane differences between dyno's.
My brother's Type 3 will spend approximately 2 weeks at the tuners as they want it for that long to make sure it has the best tune they can put into it without jepordising hurting it.
ACCEPT THAT SOME DAYS YOU ARE THE PIDGEON AND SOME DAYS YOU ARE THE STATUE
Alder Outlaws VW Racing - check it out on fb!!
Alder Outlaws VW Racing - check it out on fb!!
vw54 Administrator Always Waiting 4 Friday
16,723 posts · joined Aug 2002 ·
"""" Not if you know someone who has one and you are good friends with them!!! """
YEs that would help
YEs that would help
I read it on FACEBOOK so it must be true
http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630
http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099
http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603
http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409
http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630
http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099
http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603
http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409
deluxe hunter Casual Dubber
48 posts · joined Feb 2004 ·
RESULTS FROM FUEL FLOW TESTS.....
Before I swapped out fuel line last week I did a comparison test of the fuel flow rate to one of the carbs (i.e. line pulled off one of the carbs and put into a bottle).
Stock '56 bug fuel line with carter electric pump under the tank and a FI filter after the pump 1L in 36 sec
as above but with 3/8" bore steel tube as fuel line........1L in 32 sec !!!!
Not much difference - but hey its done now.
After doing this and a few other minor tuning tweaks and upping the fuel pressure to 3psi, I went off to the country drags (1/8 mile). My best time on the air strip was 9.28s....enough to be the fastest street reg car there then I drove 200km home.
thanks to all who gave me feedback - really appreciated
Before I swapped out fuel line last week I did a comparison test of the fuel flow rate to one of the carbs (i.e. line pulled off one of the carbs and put into a bottle).
Stock '56 bug fuel line with carter electric pump under the tank and a FI filter after the pump 1L in 36 sec
as above but with 3/8" bore steel tube as fuel line........1L in 32 sec !!!!
Not much difference - but hey its done now.
After doing this and a few other minor tuning tweaks and upping the fuel pressure to 3psi, I went off to the country drags (1/8 mile). My best time on the air strip was 9.28s....enough to be the fastest street reg car there then I drove 200km home.
thanks to all who gave me feedback - really appreciated
0 posts · joined Feb 2005 ·
Deluxe Hunter, now you have the big pump and fuel line out of the tank don't forget to make the breather pipe from the filler nozzle a bit bigger to allow the air into the tank or you will create a vaccum in there under load and that will cause starvation too. 👍
supercharged 66 Seriously Crusin Dubber
157 posts · joined Aug 2006 ·
crazy col here just to throw a spanner in the works my bug at warrick 2300cc eng 48idas std fuel system shifting at 6200rpm 8.44@89mph!And according to wallace racing it made 135 ish hp at the wheels.