Help!

[Mecka]

Hello, please help me to identified HP on my map sheet!

[Linx]

Now you're just showing off ! 😄

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[Tidgy]

One figure is at the fly 294, one at the wheels 248. However looks like whoever ran it doesn't have a clue what they are doing so could be way out.

First off it should be in shoot_44 mode on the dyno, not 4f, also its been run in gear 4 where as a wrx 5 speed should be 3rd. (unless they put the info in wrong).

My advice, take it somewhere that knows how to operate a dyno properly and get it rerun.

 

[Mecka]

Thanks for replay yes he was testing at 4 gear!can you recommend any good dyno test runs?I'm baset in heathrow area!

[Tidgy]

Not sure whos down that way tbh.

Do you know who mapped it? Shouldn't look like a roller coaster and while fueling is ok the boost is doing strange things as well, typically it will peak then drop off up the rev range as it runs out of pull, not rise up the rev range.

 

Although ignore the fueling and spool (was when my engine was fooked), see how the turbo peaks then slowly drops off, thats what i would expect to see

 

 

 

[kershaw-330s]

Yes your curves just don't look right compared to mine but I have prob got a few more mods . If your up by Heathrow RCM isn't that far really

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[Piggysniffer]

i .... REALLY wanna know who mapped this 😜

[kershaw-330s]

Jd modified looking at the dyno

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[Tidgy]

3 minutes ago, Piggysniffer said:

i .... REALLY wanna know who mapped this 😜

I'm not even gonna say who my guess is lol

[kershaw-330s]

Lol they're starting the run from far too low in the rev range too never seen a scooby start that low before :/

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[kershaw-330s]

What does the bp 101 at bottom of the graph relate too anyone know because I alway thought it was octain of fuel lol don't know why . Because on mine it says 98.3 and tidgys 98.4 but this one 101 quite a bit of difference :/

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[Mecka]

I think i need to check again!yes i was done by Jdmmodified

[kershaw-330s]

Your power and torque should cross at 5252 rpm and yours crosses much before that something doesn't seam right

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[Tidgy]

9 minutes ago, kershaw-330s said:

 

What does the bp 101 at bottom of the graph relate too anyone know because I alway thought it was octain of fuel lol don't know why . Because on mine it says 98.3 and tidgys 98.4 but this one 101 quite a bit of difference :/

 

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barometric pressure. affects the conversion factor of the dyno. Dyno measures power at the wheels then calculates back to give a fly wheel figure.

[Tidgy]

15 minutes ago, kershaw-330s said:

 

Lol they're starting the run from far too low in the rev range too never seen a scooby start that low before :/

 

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Run will start at prob 1700rpm on all dyno's, just never shown on the graph cos its pointless on a turbo car.

[kershaw-330s]

 

Lol they're starting the run from far too low in the rev range too never seen a scooby start that low before :/

 

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Run will start at prob 1700rpm on all dyno's, just never shown on the graph cos its pointless on a turbo car.

That makes sense

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[Mecka]

Thanks guys for your quick replay.I will need to do another dyno to check my hp properly!

 

[Tidgy]

basic process is take car to the right gear, then let it run down to near idle. At that point load is applied via the rollers to the car and then the pull happens.

[stants]

Surrey rolling road is close,

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[Piggysniffer]

38 minutes ago, stants said:

Surrey rolling road is close,

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thats where my car got cocked up

[kershaw-330s]

Thanks guys for your quick replay.I will need to do another dyno to check my hp properly!

 

Why do you think you need another dyno run doing has it been mapped ? .

.

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[kershaw-330s]

Surrey rolling road is close,

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thats where my car got cocked up

Surrey rolling road is fine because normally tuners just hire it out . All depends who did the work for you really . What happened ?

.

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[Mecka]

Tidgy replayed need to be tested on 3rd gear so maybe is not correct figures!Remap wasn't done in syrrey rolling road was done at Jdmmodified!

[Piggysniffer]

6 minutes ago, kershaw-330s said:

 

thats where my car got cocked up

 

Surrey rolling road is fine because normally tuners just hire it out . All depends who did the work for you really . What happened ?

 

.

 

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Yes your right, my mistake, not the fault of Surrey rolling road at all, was the guy that mapped it, I'm not going into it again as there's a huge thread (or two) on it

[Tidgy]

if SRR is near enough then pop down. for dyno runs their ok.