Thread: Results are in, Dyno figures D/gas

My engine is stock remember,no mods done.It was done in fourth,one to one and the tyre size would make a difference.On the air ratio sheet the air flow is a bit low so the air filter is restricting it a bit or the turbo is tired or a bit of both.It does drive very well though. Pat

Originally Posted by PAT303

It does drive very well though. Pat

And that's the answer.... all else doesn't matter

Thats right,believe me the gas totally changes the engine,it still has lag off idle but once it starts to spool up it revs alot cleaner right throughout the rev range.It makes it far more driveable.I would like to do something about the low air reading. Pat

Originally Posted by Tusker

snip


The dyno owner is just wrong. Doesn't understand the basics. What gear was it tested in? Usually third.

Tyre size doesn't matter. The gear selected doesn't matter. The dyno will compute the load against the revs of the drum.

Regards
Max P

Actually it does make a difference, unless ALL the data is inputted, which is still just mythical as tyre drag alone can make a huge difference, i.e. A/T vs Simex

At the end of the day, the figures ARE INACCURATE, especially compared to any other Dynometer, but the back to back comparison figures are accurate and precisely what you want to know, in regards to %gained

Originally Posted by PAT303

The engine is stock,no fueling mods done or any other thing,I didn't want it touched as it has too many K's to start playing with it.

I really struggle with this concept, as you don;t think the gas and increase in HP is precisely what upping the fuel would do?

Thanks for posting the results

Originally Posted by rovercare

Actually it does make a difference, unless ALL the data is inputted, which is still just mythical as tyre drag alone can make a huge difference, i.e. A/T vs Simex

At the end of the day, the figures ARE INACCURATE, especially compared to any other Dynometer, but the back to back comparison figures are accurate and precisely what you want to know, in regards to %gained

Exactly joes dyno round the corner would give a different reading again. As long as you're happy that's all that matters.

How much did the kit cost all up fitted ?

Originally Posted by dhard

Exactly joes dyno round the corner would give a different reading again. As long as you're happy that's all that matters.

The same dyno for that matter will give different readings on different days, depending on temp & humidity. But tyre size is allowed for.

For a dynp owner to say 255/85/16 tyres will hurt output, as in the first post, just isn't correct.

Regards
Max P