DYNO RUN Results
08-11-2005, 06:17 PM
#1
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DYNO RUN Results
Here are the figures finally from my dyno run.
You have to take into account my stock engine was only good for 170kw at the engine.
We still have not got fully past the VDC issue, however the guy was able to trick it into coming on much later on. So he had to run it second gear.
From these figures look like all the work has improved the output by 43hp at the wheels from stock
Not too shabby in my opinion.
So I am going to claim the title of Australia biggest engine output Maxima 6th Gen.
You have to take into account my stock engine was only good for 170kw at the engine.
We still have not got fully past the VDC issue, however the guy was able to trick it into coming on much later on. So he had to run it second gear.
From these figures look like all the work has improved the output by 43hp at the wheels from stock
Not too shabby in my opinion.
So I am going to claim the title of Australia biggest engine output Maxima 6th Gen.
08-11-2005, 06:33 PM
#6
Originally Posted by blackpaladin67
Four Speed Auto .. 
stock is around 230hp at the engine.
stock is around 230hp at the engine.
08-11-2005, 06:37 PM
#8
Originally Posted by blackpaladin67
Four Speed Auto .. stock is around 230hp at the engine.
They reccon ya lose about 30% via the 4 speed slush box transmission
stock is around 230hp at the engine.They reccon ya lose about 30% via the 4 speed slush box transmission
08-11-2005, 06:46 PM
#10
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Originally Posted by E55AMG2
23% is the loss figure, now if we do the math....you are making 261.238 crank hp and your VDC isnt doing anything to hinder your dyno results. Good work my friend.
I'm Happy ... it shows that a good full exhaust work over and semi cold air intake can do wonders to the stock numbers..
Gotta remember that my Maxima is on a diet and has lost about 200+ lbs -v- the US version.. So I'm going to get some 0-100km times done..
08-11-2005, 07:03 PM
#13
Originally Posted by blackpaladin67
I'm Happy ... it shows that a good full exhaust work over and semi cold air intake can do wonders to the stock numbers..
Gotta remember that my Maxima is on a diet and has lost about 200+ lbs -v- the US version.. So I'm going to get some 0-100km times done..
Gotta remember that my Maxima is on a diet and has lost about 200+ lbs -v- the US version.. So I'm going to get some 0-100km times done..
08-11-2005, 07:25 PM
#14
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Originally Posted by Glude
How did you loose 200 lbs? Or is your maximas just 200 lbs lighter over there?
LOL the Maxs are a wee bit lighter over here ...I reccon that I lost about another 20+ lbs with the exhaust changes and modifications as well.
08-11-2005, 07:55 PM
#16
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Originally Posted by SR20DEN
Now we need to get you upto about 190kW
Your AFR is terrible at the end. You need some way to tune that and you'll probably get to 160kW.
Your AFR is terrible at the end. You need some way to tune that and you'll probably get to 160kW.
You wouldn't care to explain the AFR bit , I forgot to ask when i was at the shop.
08-11-2005, 08:05 PM
#17
Originally Posted by blackpaladin67
You wouldn't car to explain the AFR bit , I forgot to ask when i was at the shop.
Your Air to Fuel ratio is far too rich. It needs to be at or above 13.0:1 for your car and 13.5-14.0 would be even better. At 11.5:1 your car is wasting fuel and not making as much power as it should be.
A perfect , or stochiometric, ratio for gasoline is 14.7 parts air to 1 part gasoline (petrol). But the internal parts of an engine would melt if continuously run at that ratio at wide open throttle for too long. The mixture has to be run more rich than that because the excess, unburned, fuel in the chamber actually helps to keep things cool. You always have to find the best balance of power vs. engine safety when tuning them. A ratio of 13.5:1 is really about the best balance for a street driven VQ.
08-11-2005, 08:10 PM
#18
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Now this is really excellant ... I am on the page ...thanks
The guys at the shop did say something about spending about $700 and they would custom map my computer on the dyno with a chip modification, would this fix this issue ? They are a big time chip modifing company.
The guys at the shop did say something about spending about $700 and they would custom map my computer on the dyno with a chip modification, would this fix this issue ? They are a big time chip modifing company.
Originally Posted by SR20DEN
Your Air to Fuel ratio is far too rich. It needs to be at or above 13.0:1 for your car and 13.5-14.0 would be even better. At 11.5:1 your car is wasting fuel and not making as much power as it should be.
A perfect , or stochiometric, ratio for gasoline is 14.7 parts air to 1 part gasoline (petrol). But the internal parts of an engine would melt if continuously run at that ratio at wide open throttle for too long. The mixture has to be run more rich than that because the excess, unburned, fuel in the chamber actually helps to keep things cool. You always have to find the best balance of power vs. engine safety when tuning them. A ratio of 13.5:1 is really about the best balance for a street driven VQ.
A perfect , or stochiometric, ratio for gasoline is 14.7 parts air to 1 part gasoline (petrol). But the internal parts of an engine would melt if continuously run at that ratio at wide open throttle for too long. The mixture has to be run more rich than that because the excess, unburned, fuel in the chamber actually helps to keep things cool. You always have to find the best balance of power vs. engine safety when tuning them. A ratio of 13.5:1 is really about the best balance for a street driven VQ.
08-11-2005, 08:19 PM
#19
You're going to have to get specifics on what they're talking about. Because on Nissans it simply doesn't work quite like that. They're probably talking about a piggyback fuel computer that can intercept the signals from the MAF and send the ECU different signals. This is how 99% of us tune these cars.
Apexi SAFC2
Greddy Emanage or Emanage Ultimate
Perfect Power SMT6 or SMT7
Apexi SAFC2
Greddy Emanage or Emanage Ultimate
Perfect Power SMT6 or SMT7
08-12-2005, 06:09 AM
#22
Originally Posted by maxmale
im getting mine dynoed today with the afr as well. then we'll see about the safc II or emanage U.
There are a few important things you need to know when getting your car dyno tested. If it is a Dynojet it will have a clip that connects to one of your coil wires so it can determine the engine RPMs. Often times the dyno operators connect these incorrectly on these cars and the thing will lose signal. This shows up as spikes and loss of data on the graphs, particularly in the torque section. Make sure the graph they show you scales by engine RPM as this will show these errors. The correct way to connect this clip is to peel back the cable sheilding and clip only one coil wire instead of all three (expose the three inner shielded wires, not copper). Again, MANY operators do not know this.
Second, make sure you know exactly where your rev limiter is in relation to your tachometer. Do not assume that when your tach shows 6600 your engine is spinning at 6600. A33Bs such as mine have tachometers that lie greatly. My tach will show 7000rpm before the engine really hits 6600. And it shows 7900-8000 when the engine hits 7500. Be sure to tell your dyno guy exactly where to rev your car too or tell him to find the rev limiter and warn him the tach might be WRONG. Many dyno sheets people bring to this forum are incomplete because the operator didn't rev the car to the rev limiter and this is why.
08-12-2005, 08:23 AM
#23
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Originally Posted by blackpaladin67
Here are the figures finally from my dyno run.
So I am going to claim the title of Australia biggest engine output Maxima 6th Gen.
So I am going to claim the title of Australia biggest engine output Maxima 6th Gen.
08-12-2005, 08:46 PM
#24
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Thanks Mate... 
Now as I have done all this work and only get to about the stock output of the standard US maxima output I am thinking that as our engines and the Altima 3.5 are all pretty identical , the US Maxima must run a completely differnent chip set .
Would anybody know if the Altima and Maxima engine management computers are similar or very different ( If they are very different then here is the area I am missing out on, power up wise) ? If the wires and plugs are the same I might by one out of a wreck and try it out ?
Now as I have done all this work and only get to about the stock output of the standard US maxima output I am thinking that as our engines and the Altima 3.5 are all pretty identical , the US Maxima must run a completely differnent chip set .
Would anybody know if the Altima and Maxima engine management computers are similar or very different ( If they are very different then here is the area I am missing out on, power up wise) ? If the wires and plugs are the same I might by one out of a wreck and try it out ?
Originally Posted by chernmax
Great job and yes you OWN the title...
08-12-2005, 08:57 PM
#26
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Originally Posted by E55AMG2
They are indeed different
5.5 gen is different from 02-04 alti
04+ max is closer to the altima and Z ecu
5.5 gen is different from 02-04 alti
04+ max is closer to the altima and Z ecu
Now did ya ever own a E55 Amg , just interested my last car was a C class AMG great car but a little bit tooo sqeezie... size wise...had two over 3 years as I wrote the first one off by droppin it in a river .. long story...
08-12-2005, 09:07 PM
#27
Originally Posted by blackpaladin67
Righto then that where the power loss is .. thanks mate... I shall be looking into that aspect as my next mod...
Now did ya ever own a E55 Amg , just interested my last car was a C class AMG great car but a little bit tooo sqeezie... size wise...had two over 3 years as I wrote the first one off by droppin it in a river .. long story...
Now did ya ever own a E55 Amg , just interested my last car was a C class AMG great car but a little bit tooo sqeezie... size wise...had two over 3 years as I wrote the first one off by droppin it in a river .. long story...
My fathers car, I wish I could afford one myself though!
08-14-2005, 06:42 AM
#28
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Originally Posted by E55AMG2
My fathers car, I wish I could afford one myself though!
)
08-14-2005, 08:27 AM
#32
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Originally Posted by E55AMG2
He knows the mileage......
However, he does let me drive it from time to time to pick potential employees up from the airport.
However, he does let me drive it from time to time to pick potential employees up from the airport.
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