EVO X dyno comparisons

[hechtrod]

Wow, basically 40whp (50flyhp) difference between dynos. Hello!!! That basically sums up the variation from dyno to dyno perfectly. So, how does one try and estimate power at the crank/flywheel? You can't just take the typical powertrain loss (typically what? 20-25% for an awd car?), it will be the same percent different/off as when comparing dynos.
For example, if you take 25% loss at the BR dyno: 407whp/.75 = 542fly HP and on the Dynojet: 443whp/.75 = 590 fly HP.

Does each dyno have a manual or guideline to help understand crank hp?

In the end, I guess it doesn't matter. If you stick to the same dyno, you're main goal is to compare changes relative to previous runs on the same dyno.

Thanks,
Chris

[Bionic Dead]

David...with these new horsepower levels reached on the X, ever think about retesting the unnamed downpipe to see if there are any gains at these elevated HP levels????

[David Buschur]

I don't plan on retesting the 02 housing downpipe we tested last time, I don't have it, it's on the customers car. We are going to test a downpipe again on it when we get some time.

[Bionic Dead]

I'm thinking that there will be a difference this time. We will see

[David Buschur]

There is no calculation for flywheel horsepower on our dyno.

The EVO 8-9's were rated at let's say 275 hp. They made 215's on average on our dyno.

[Fourdoordsm]

I don't plan on retesting the 02 housing downpipe we tested last time, I don't have it, it's on the customers car. We are going to test a downpipe again on it when we get some time.

Hey Dave, if you come up with some upgraded clutch packs for the MR's you can try out the Dominator 2.0 and cams on my car for the comparison But I will not be raising my power levels until we can make sure it will not destroy my clutches

Keith

[David Buschur]

Well Keith.........................we don't do transmissions upgrades on auto's. We'll be waiting for someone else to do that.

[David Buschur]

Below is a dyno comparison of our EVOX.

The red line solid line is stock boost, horsepower and torque. I know it gets hard to read.

The green smaller dashed line is BR Stages 1-3, stock turbo, boost, HP and TQ.

The blue larger dashed line is BR Stages 1-3, Blouch D2 turbo, Cosworth cams, boost, HP, TQ.



We have gained 196 peak whp over stock at this point.
We have gained 105 peak ft lbs over stock at this point.

We have gained 208 whp at 6900 rpm over stock at this point.
We have gained 156 ft lbs at 6900 rpm over stock at this point.

Peak boost stock was 22.5 psi.
Peak boost with Stg 3 stock turbo was 25.8 psi
Peak boost on Blouch turbo is 24.7 psi.

The car bone stock made peak boost of 22.5 psi at 3700 rpm
The car modified with the stock turbo made peak boost of 25.8 psi at 3700 rpm
The car with the Blouch turbo and Cosworth cams makes peak boost of 24.7 psi at 4100 rpm. Compared to stock it makes 23.2 psi at 3700 rpm.

At 6900 rpm the stock car/stock turbo had 13.4 psi, loss of 9.1 psi
At 6900 rpm the Stg 3 w/stock turbo had 17.4 psi, loss of 8.4 psi
At 6900 rpm the Stg 3, Dom/Cos had 22.1 psi, loss of 2.6 psi

[SloRice]

Gawd damn David!!