Worrying Rolling road figures!!

[Zjay89]

Hi guys, I went on a rolling road day today and my car made poor power figures!

 

Flywheel @245 bhp

Wheels @209 bhp

 

Are these normal? Or should I be looking to get her checked out? The car is a 2004 car with 125K on the clock and lightly moded with just a K1 cat back and a plenum spacer, I have included the Map graph below.

 

 

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[Jetpilot]

I wouldnt pay much attention to figures from a dyno day, if the car drives ok and you were happy when you drove there, just consign to the bin.

[GMballistic]

Dyno results can also vary massively depending on the dyno (make, when was it calibrated last etc), weather conditions (ambient temps etc) and from car to car.

 

Also if you haven't had the car remapped (UpRev) then the mods you have will make little difference.

[Zjay89]

so do you guys think that i have nothing to worry about? maybe get her mapped and use it as an excuse to start modding lol

[Jetpilot]

Depends if you think or thought the car lacked performance before you saw that number. If the answer is no, why you worried about what a piece of paper says.

[GMballistic]

It could be something or nothing, ...if you're generally worried maybe get a compression check done or take it to a specialist for a once over. Somewhere like Horsham Developments where they know 350's well.

[Sargara]

You'd need to get it on a dyno with other 350z to know how their cars compare. It could just be the way that particular dyno is configured and all 350z could run low numbers for all we know. Pay one of the RevUp remappers a visit and see how your car compares on their rolling road before you start to worry.

Edited February 5, 2017 by Sargara

[TT350]

Mods can be detrimental when not tuned to run with them.

 

Its CPU is a neural net processor, a learning computer.

 

Thats a T800 though and not a VQ35DE

 

Get it mapped so its not trying and failing to make sense of what youve done to it.

[Zjay89]

Okay guys cheers for the advice, im just thinking the figure is a bit low so was making me worry lol but the car drives great and its always been very fast so im a bit baffled by this dyno!

[TT350]

Its probably retarding things to keep it safe. Remap it and you'll see and definitely feel a difference :-)

[Ekona]

Wouldn't worry about it in the slightest.

 

All rolling roads use clever calculations and guesswork to get to the figure you see there, so really the only thing they're particularly useful for is before/after comparisons when you've done various things to the car. Outside of that, they're an interesting curiosity. Put it this way, if you really are that far down on power, you'd have plenty of other symptoms to be noticing!

[Aashenfox]

Wouldn't worry about it in the slightest.

 

All rolling roads use clever calculations and guesswork to get to the figure you see there, so really the only thing they're particularly useful for is before/after comparisons when you've done various things to the car. Outside of that, they're an interesting curiosity. Put it this way, if you really are that far down on power, you'd have plenty of other symptoms to be noticing!

 

This. It's a comparison tool.

[Jetpilot]

Wouldn't worry about it in the slightest.

 

All rolling roads use clever calculations and guesswork to get to the figure you see there, so really the only thing they're particularly useful for is before/after comparisons when you've done various things to the car. Outside of that, they're an interesting curiosity. Put it this way, if you really are that far down on power, you'd have plenty of other symptoms to be noticing!

 

This. It's a comparison tool.

 

Dynos are are a tuning tool.