Rajicase's First Turbo Build, Ballin' On A (Nonexistent) Budget

[rajicase]

Dynojet! Thanks
Here are a few pics. Got several graphs for later and a few vids
ForumRunner_20160407_105725.jpg



ForumRunner_20160407_105746.png



ForumRunner_20160407_105733.png

[pbonsalb]

463 whp and 411tq at 13.8psi I'm so giddy

On a base tune and crappy crush bent exhaust.

Got pics and vids to come!

Very good results. Would like to see scanned dyno or better picture to show CORRECTION and to show when/where boost arrives and rpm.

[rajicase]

Very good results. Would like to see scanned dyno or better picture to show CORRECTION and to show when/where boost arrives and rpm.

It's SAE. I'm getting emailed dyno graphs tonight, which I will upload.

[someguy2800]

nice power for that turbo and boost level! I was going to predict you would be well over 400whp but didn't want to get you expectations up.

[Butters Stoch]

What turbo is this ? Sx256 ? Or something ?

[vollosso]

What turbo is this ? Sx256 ? Or something ?

Bw s200sx-56

[rajicase]

^^^corrreccct

[rajicase]

nice power for that turbo and boost level! I was going to predict you would be well over 400whp but didn't want to get you expectations up.

Weird that I only made 13.8psi on the dyno. On the street I make 16.. so for 13.8#, base tune, and tiny crush bent exhaust, 463whp makes my beyond excited

[rajicase]

Vollosso has the nice dyno files maybe he would be kind enough to upload them when he has time

[NOTORIOUS VR]

Weird that I only made 13.8psi on the dyno. On the street I make 16.. so for 13.8#, base tune, and tiny crush bent exhaust, 463whp makes my beyond excited

It seems your boost/turbo/WG setup is highly dependent/sensitive on actual engine load, which is very odd.

Goes back to me thinking you need to go over a few things.

[rajicase]

^^Yeah I agree. I made a boost leak tester but am waiting on a coupler.

When you say go over things, do you mean boost leak test? Or anything else?

[NOTORIOUS VR]

^^Yeah I agree. I made a boost leak tester but am waiting on a coupler.

When you say go over things, do you mean boost leak test? Or anything else?

Everything... boost leak test, exhaust manifold/leaks, WG operation (with a pressure tester, etc)... anything you can think of really that's related to holding and regulating boost.

[Butters Stoch]

Or the dyno sensor was off.
I've had it a few times where the dyno AFR and boost was not accurate to my logs or my gauges, which are very accurate. A little leak at the hose will show wrong readings. You very well could have been in the 16# range. That would seem more likely.

[vollosso]

Dyno sensor was accurate

[vollosso]

Raji's pulls were done unloaded.

[rajicase]

Ah thats right, forgot about that. 0 load on my pulls.

[NOTORIOUS VR]

Ah thats right, forgot about that. 0 load on my pulls.

That looks like a Dynojet to me... so that's simply impossible.

Dynojet's are inertia dynos. The load is fixed.

Even if it's not a dynojet and some other load bearing dyno there is no way it was not loaded since you wouldn't get an accurate reading.

[rajicase]

That looks like a Dynojet to me... so that's simply impossible.

Dynojet's are inertia dynos. The load is fixed.

Even if it's not a dynojet and some other load bearing dyno there is no way it was not loaded since you wouldn't get an accurate reading.

Ill let Vollosso answer or explain, he knows way more about this than I do.

[vollosso]

That looks like a Dynojet to me... so that's simply impossible. Dynojet's are inertia dynos. The load is fixed. Even if it's not a dynojet and some other load bearing dyno there is no way it was not loaded since you wouldn't get an accurate reading.

the load was set to zero.

[someguy2800]

You can get an add on eddy current absorber to put extra load on the roller of a dynojet. I believe what they are saying is that the absorber was turned off so the load was only the drum inertia.

[Jab31169]

Nice numbers for sure! I knew you'd be over 400 by a good bit at 16lbs.

[rajicase]

Thanks!!! Should be easy 500 with a tune revision and better exhaust and same boost level.

1st dyno pull
https://www.youtube.com/watch?v=iNa9qHxX1Kk

- - - Updated - - -

And dyno pull #2 sorry for horribe vid :/
https://www.youtube.com/watch?v=sv3ihm_G8T8

[NOTORIOUS VR]

You can get an add on eddy current absorber to put extra load on the roller of a dynojet. I believe what they are saying is that the absorber was turned off so the load was only the drum inertia.

Which is the way it should be when doing pulls for power. So again, none of that makes any difference at all.

Dynojets are primarily inertia dynos. You can't remove the mass of the drum which is the primary source of load.

[vollosso]

Which is the way it should be when doing pulls for power. So again, none of that makes any difference at all. Dynojets are primarily inertia dynos. You can't remove the mass of the drum which is the primary source of load.

dude cool ypur shit. I dont know why you go off like this its ridiculous.

Inertial dyno only applies to how it measures the power.

I dont know what were talking about anymore... But a dyno like this without the brake applied creates less load on the engine than a highway and if his car likes to change boost based on load i dont see what your going off about...

"Cant remove the mass of the mass of the drum"
lol what are you even getting at??????

[NOTORIOUS VR]

dude cool ypur shit. I dont know why you go off like this its ridiculous.

WTF are you talking about? Are you drunk? Maybe high?

Inertial dyno only applies to how it measures the power.

I dont know what were talking about anymore... But a dyno like this without the brake applied creates less load on the engine than a highway and if his car likes to change boost based on load i dont see what your going off about...

"Cant remove the mass of the mass of the drum"
lol what are you even getting at??????

If you don't know what I'm talking about here, you probably shouldn't be answering questions about the dyno... Just sayin'