Having a car run in on dyno .
#81
PassionFords Creator
iTrader: (12)
A dyno is just a tool to measure something. But like a ruler, its only any good if its accurate and, actually far more importantly, REPEATABLE.
The cooling and constant fresh air of the same temperature keeps it repeatable. A good example is a recent BMW M140 we did. Pretty hard to dyno as they have such a strong powerband and the engine bay is so tightly packed that you need good cooling to keep them consistent.... but look how repeatable the dyno is over 6 back to back runs.
The operator fudged the start on one run, but the point is still easy to see. If we tuned that and then saw less (or more) power, we KNOW its a real change.
Some dyno's cant do the same run twice,. let alone six times!
#82
Sponsor
iTrader: (4)
Thanks,
A dyno is just a tool to measure something. But like a ruler, its only any good if its accurate and, actually far more importantly, REPEATABLE.
The cooling and constant fresh air of the same temperature keeps it repeatable. A good example is a recent BMW M140 we did. Pretty hard to dyno as they have such a strong powerband and the engine bay is so tightly packed that you need good cooling to keep them consistent.... but look how repeatable the dyno is over 6 back to back runs.
The operator fudged the start on one run, but the point is still easy to see. If we tuned that and then saw less (or more) power, we KNOW its a real change.
Some dyno's cant do the same run twice,. let alone six times!
A dyno is just a tool to measure something. But like a ruler, its only any good if its accurate and, actually far more importantly, REPEATABLE.
The cooling and constant fresh air of the same temperature keeps it repeatable. A good example is a recent BMW M140 we did. Pretty hard to dyno as they have such a strong powerband and the engine bay is so tightly packed that you need good cooling to keep them consistent.... but look how repeatable the dyno is over 6 back to back runs.
The operator fudged the start on one run, but the point is still easy to see. If we tuned that and then saw less (or more) power, we KNOW its a real change.
Some dyno's cant do the same run twice,. let alone six times!
Stu so wish I had the time to come to you for My frs mk2 as I've looked into revo ECT and there are to many cracked pistons and knackered ring lans lol can you verify the need for a fuel pump between 380 but and 400 I already have all the other supporting items and a set of 550cc injectors to go in
#83
PassionFords Creator
iTrader: (12)
Modified pumps:
There are two options:
- 1 - Standard pressure + Higher flow.
- 2 - Increased pressure + Higher flow.
In essense, your 550cc's should do 380/390BHP safely but we would prefer to see bigger injectors in there for safety.
We use the Bosch injectors (some use Siemens) and we far prefer the higher pressure pumps that Mountune supply. But they are far from a cheap solution Jay.
All the above info is using our own calibrations. Why does that matter?
It matters because the fuel system is fixed pressure non return and the more boost you run, the less the fuel injectors can flow. Others tunes may vary due to boost pressure used to achive similar end results.
Example:
Our 420PS conversion only uses 22/23 psi.
#84
PassionFord Post Whore!!
It’s good to still see tuners taking the time to pop on forums and explain stuff like this in great detail
Makes a great read
Thanks Stu
Makes a great read
Thanks Stu
#85
PassionFord Post Troll
Yes it is like the stu of old found my fuckin windows yet stu?
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