G5 GTi's Latest Dyno Results

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STO_GTi5
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G5 GTi's Latest Dyno Results

Post by STO_GTi5 »

I fitted my K&N Typhoon CAI couple days ago and I just dyno'd my GTi at Dynotech today on pump fuel.

Prev with just s/w and DP:
193 kW with 413 Nm


Current:
205.9 kW @ 5554 rpm
422 Nm @ 3396 rpm

Graph to follow as soon as I scan.

Thanks to Amien from EvoPerformance. You make me proud, bud!
2007 MkV GTi: STO s/w with Evolution DP and K&N Typhoon CAI (206kW/422Nm)
Ex: 1987 MkII GTi 16V
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Re: G5 GTi's Latest Dyno Results

Post by SmokingHott »

Damn those are high numbers for a Stage 1 G5. Impressive.
What is the boost its running?
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Re: G5 GTi's Latest Dyno Results

Post by mk2fanatic »

K03 ? :crazy:
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Re: G5 GTi's Latest Dyno Results

Post by Uncle Nunda »

:crazy: :eek: wow thats ST torque right there
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Re: G5 GTi's Latest Dyno Results

Post by ruan9n »

:evil: :evil: :evil: :evil: :evil:
The nice thick coastal air makes it possible not to starin that K03 too much! Up here we won't get that sort of power I think?
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Re: G5 GTi's Latest Dyno Results

Post by Kuvi »

Damn nice figure there bro!!!

Are those on the wheels or fly?
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Re: G5 GTi's Latest Dyno Results

Post by ruler_70 »

KuviGTi wrote:Damn nice figure there bro!!!

Are those on the wheels or fly?
Dyno readings are atw.
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Re: G5 GTi's Latest Dyno Results

Post by STO_GTi5 »

Thanks everyone.

Yes I'm still K03.

My reading is at the flywheel not wheel. Most dynos in CT gives flywheel reading.
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Re: G5 GTi's Latest Dyno Results

Post by RoadHaWg »

ruler_70 wrote:
KuviGTi wrote:Damn nice figure there bro!!!

Are those on the wheels or fly?
Dyno readings are atw.
Then its a very very very very very happy dyno.

Looks like guesstimated flywheel figures to me.
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Re: G5 GTi's Latest Dyno Results

Post by REVV - ZN »

That's :evil: power bud. Good stuff.
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Re: G5 GTi's Latest Dyno Results

Post by STO_GTi5 »

@RoadHaWg - I did mention 20min before your reply that it was flywheel power, bud. And Dynotech in Cape Town is one of the most accurate and consistent dyno's around. Its not guestimated.

Thanks REVV-ZN. My Autotech fuel pump arrived yesterday from US and I'm going to install an S3 intercooler soon and then remap.
2007 MkV GTi: STO s/w with Evolution DP and K&N Typhoon CAI (206kW/422Nm)
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Re: G5 GTi's Latest Dyno Results

Post by ruler_70 »

Correct me if im wrong, but accurate power at the flywheel is almost impossible to calculate unless you remove the engine?
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Re: G5 GTi's Latest Dyno Results

Post by PoLonY »

STO_GTi5 wrote:@RoadHaWg - I did mention 20min before your reply that it was flywheel power, bud. And Dynotech in Cape Town is one of the most accurate and consistent dyno's around. Its not guestimated.

Thanks REVV-ZN. My Autotech fuel pump arrived yesterday from US and I'm going to install an S3 intercooler soon and then remap.
sorry buddy, but the minute its corrected to flywheel power, its guesstimated, say what you like, its nothing more than a guesstimate...find a proper dyno that reads wheel power, then you can see what its really making...cape guys seem to love flywheel power cause its an inflated power reading, so they seem to have more power than everyone else...
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Re: G5 GTi's Latest Dyno Results

Post by PoLonY »

ruler_70 wrote:Correct me if im wrong, but accurate power at the flywheel is almost impossible to calculate unless you remove the engine?
absolutely correct
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Re: G5 GTi's Latest Dyno Results

Post by Neuk »

STO_GTi5 wrote:@RoadHaWg - I did mention 20min before your reply that it was flywheel power, bud. And Dynotech in Cape Town is one of the most accurate and consistent dyno's around. Its not guestimated.
ATF and Accurate are oxymoron's...
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Re: G5 GTi's Latest Dyno Results

Post by STO_GTi5 »

ok guys stop the shooting match :cool:

I was just excited with my power. You guys make sense about the wheel power compared to flywheel power. The more you think about it, the more you think that the FkW reading is an estimate. So please help me understand this dyno thing better.

What I don't understand is how can a machine that has a wheel spinning on it,

1) measure for both Kw and NM. How does it know the difference to plot the diff positions on the graph?
2) why does some Dyno gives FkW and some WkW results?
3) Can the FkW dyno be calibrated to show WkW?

These may seem naive questions, but I want to understand it better.

Thanks
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Ex: 1987 MkII GTi 16V
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Re: G5 GTi's Latest Dyno Results

Post by evolution »

i just have a question

when one buys a car does the manufacturer claim WKW or FWKW?
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Re: G5 GTi's Latest Dyno Results

Post by Jetta2 »

evolution wrote:i just have a question

when one buys a car does the manufacturer claim WKW or FWKW?
Flywheel, as tested on an engine dyno and usually with no ancilliaries attached like alternator, power steering pump, aircon pump, etc.
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Re: G5 GTi's Latest Dyno Results

Post by Awesum »

evolution wrote:i just have a question

when one buys a car does the manufacturer claim WKW or FWKW?
The manufacturer has an engine dyno, so those figures are supposed to be accurate.
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Re: G5 GTi's Latest Dyno Results

Post by Neuk »

STO_GTi5 wrote:1) measure for both Kw and NM. How does it know the difference to plot the diff positions on the graph?
Torque and power are related to one another by rpm as torque is a measure of the rotating force while power is a measure of the work done by this rotating force in a certain timeframe...
STO_GTi5 wrote:2) why does some Dyno gives FkW and some WkW results?
Depends on what the operator uses, but I have personally always preferred ATW readings, whether in hp or kw...
STO_GTi5 wrote:3) Can the FkW dyno be calibrated to show WkW?
Yes, any dyno shoudl be capable of showing both, but ATW is regarded as a lot more accurate than ATF as there is no calculation or measurement of how much drivetrain loss there is...
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Re: G5 GTi's Latest Dyno Results

Post by PoLonY »

STO_GTi5 wrote:ok guys stop the shooting match :cool:

I was just excited with my power. You guys make sense about the wheel power compared to flywheel power. The more you think about it, the more you think that the FkW reading is an estimate. So please help me understand this dyno thing better.

What I don't understand is how can a machine that has a wheel spinning on it,

1) measure for both Kw and NM. How does it know the difference to plot the diff positions on the graph?
2) why does some Dyno gives FkW and some WkW results?
3) Can the FkW dyno be calibrated to show WkW?

These may seem naive questions, but I want to understand it better.

Thanks
well ill try my best to answer based on my knowledge

1)cool man, well basically it can plot Kw and Torque since Power (kw), which the work done is a certain time frame, is a function of Torque (Nm), which is a measure the rotational force, and Rpm...so at a certain rpm the engine produces a certain amount of torque and this directly relates to the power produced as well

a basic formula is P=(2*pi*N*T)/60
where P is power in W, N is rpm, and T is Torque in Nm

see how they relate to one another?if one changes ie rpm, so will torque and power, however that is a very basic power formula...

2)A dyno that you strap you car down onto will always give wkw readings, however the operator using the software can opt to then convert to flywheel power by thumsucking an estimate of drivetrain losses (usually guys will use 15%0 however since every engine and gearbox etc is different, its not accurate to use a guesstimated drivetrain losses and so flywheel power will always be, at best, approximately right, but its never accurate, ever.

3)Yes it can, but again since you don't know the percentage that the operator used in his conversion, it won't be an accurate conversion

im sure the other will have something to add
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Re: G5 GTi's Latest Dyno Results

Post by PoLonY »

Neuk beat me to it
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Re: G5 GTi's Latest Dyno Results

Post by STO_GTi5 »

@RoadHaWg and Polony - Thanks for the explanations. Much appreciated. Nicely explained. I have copied and saved your answers.

One more question: What do you think my kW ATW results would be roughly?
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Re: G5 GTi's Latest Dyno Results

Post by ruan9n »

The GTI shouldn't have a lot of drivetrain losses like a AWD or RWD car. Probably close to 180kw ATW
Candy white Scirocco 2.0TSI DSG StormtrooperXL 195kw 456nm @ stealth
Revo stage 2, Revo 76mm dp, Revo throttle pipe, APR 1&2 Carbonio intake, Neuspeed hiflow discharge pipe, H&R springs, 19" RS3 wheels, R8 coils, Iridiums, BSH dogbone insert, TTRS lca's, R interior.


Ex: Golf 6 GTI aka "pepper" 252hp 420nm
Ex: Golf 5 GTI aka "stormtrooper" 190kw 390nm
Ex: 9n Polo TDI sportline "The cupra polo" 125kw 430nm
Ex: Some other polos
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Re: G5 GTi's Latest Dyno Results

Post by OOBA »

you gained 13kw and 11nm with an intake, that is a great result, that is all you should be looking at.
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