Heatsoak

[E30Dom]

Ok....

If a car has been set up on a rolling road, but has been taken as far as it can due to heatsoak say after three runs, but is only at 67% duty cycle, would there be any benefit having it set up on the road... will a fan really give the same amount of air running through the front of the engine?

Is my map and subsequent heat soak limiting my power, or could I get more power from another map with my mods, or will they all give the same without a uprated intercooler on a Ko4...

Dom

[craigy123]

Its surely got to be better to get a live map on the road rather than a RR. That's how mine was done.

[itismebigd]

Mine was also done on the road,not sure if it is any better for it, although my tuner rants about real road tuning for that very reason dom,more natural air.

[E30Dom]

It's just i was at 289bhp stage 1 with just a map(set up on road), now after stage 2 with HPFP, FULL 3"TBE, EVOMS, I feel a bit short changed getting another 20bhp @309bhp...

[itismebigd]

I would feel the same(short changed)funny old game this modding carry on,sometimes i just wish id left the car standard lmao

[TrickGTI]

Stage one will always give you the most power gain in one go. Adding mods and mapping to suit after stage one you won't ever get the same jump in power gain from standard to stage one unless you start to change turbos etc or go from stage one to stage 2+

[E30Dom]

Yeah I understand that...

[stealthwolf]

Various forumites and JKM have said to me that stage 1 gives you the most bang for your buck and after that, you're spending increasing amounts of money for diminishing amounts of improvement.

[berg]

the fan on a dyno cant replicate the air from a road at more than 40mph i was told, so yes real world logging better but where can you nail it up to the red line in the middle of the day without other traffic or the police intervening.

have you got boost leak? dv holding boost?

tbh, if it a real 309bhp it is only a little bit lower than what it should be as stage 1 is usually only about 280-290bhp.

i made 319bhp on 2+ so imagine how cheated i felt. better fuel, boost leak located, twintercooler added and 2+ revision map and found 40bhp on same dyno, now at 361bhp

[alackofspeed]

I've got a bluetooth OBD2 device and Torque pro on an Android phone, so when my car (stg 1 K03) was on the dyno at JKM I watched the intake temp and it ramped up quite obviously. Doing similar pulls on the road in say 3rd gear doesn't seem to induce anywhere near the same increase in temp (can't recall the exact differences, but recall it being marked).

The main issue with [proper, not Revo setting adjustment] road mapping is you need a driver and passenger that understand the process, else it's a bloody nightmare. Hard to be objective though. Disused runways are the best areas for such antics, and it's quite rewarding feeling the changes.

[56OctyVRS]

The figures you get from rrs is subjective and vary wildly from one rr to another rr. Stage 2 and onwards isnt really about peak power but increasing the mid range grunt. Thats why a 250bhp megane can demolish the mk2 focus rs as the power delivery is more linear and not peaky. Dont be fooled by chasing figures that your car will be quicker and more bhp is better because it isnt. Its how the power is delivered is the key factor. If the graph is nice and smooth with a nice plateau of torque and power Id be happy with it. Live mapping is good but also there is nowhere legally on the road that it can be done. Unless they own a private runway as the speeds they reach when doing pulls are well over the speed limit.