Paulyy

Id like to share something i've put together with you guys

Pretty much it was Raining over here nothing to do and i was reading on the Garrett webpage and i did the calculations to work out what turbo for this horsepower on paper then figered this is annoying for people to do so i put together a calcuator on Excel with the popular compressor maps to see what i came up with. it's pretty cool to play around with.

All the data i used is from the garrett website.

If anyone wants me to add other compressor maps tell me and send them over and i'll be happy to

Enjoy.
Change log:
1.01 - Removed doubled up compressor map changed doubled gtx3071 map
1.1 - Maps wernt lined up with grid.
Pressure Ratio v1.1

Paulyy

Update v 1.1..... view change log

Van

Pretty cool. I typed in some numbers, though I don't know what 1/2 of those mean... and it puts red dots on the charts!

Paulyy

i didn't know what half of the number ment untill i researched them. and that's why i left some there incase some didn't know. It's pretty usefull to help you pick your next turbo. it won't give you exact results but it's a rought idea.

Van

Do any maps for the old KKKs exist? I race in a stock class so can't change the turbo, but I'm curious about how it compares.

Paulyy

I'm not to sure,
if you look on Here it has "k26" but it's under borg warner K series. not sure if they are the right ones.

Van

In an effort to understand those maps more, I found this post in bimmerforums: http://forums.bimmerforums.com/forum...d.php?t=258035

Paulyy

Nice find
pretty similar to garretts site but it's still info!

mineomolnar

Hi Paulyy,

I know it's been a few years since this conversation was active, but I'd like to ask you to put another turbo map into excel calculator.
I am working on a final project for university in which I am trying to examine a few ways of charging specific engine.
The turbo I need is Garrett's G25-550, and it's maps are listed in the following link:
https://www.turbobygarrett.com/turbo...series-g25-550

If you get my notification and help me it would be very helpful.

King regards

944crazy

I'd like to see this too actually. The new G series looks quite interesting. I might get one after they come down in price and I get bored of the vittesse stg 2 that I'm gonna install soon.

Paulyy

Damn, I haven't used this in a while. forgot how useful it was.

To them up on other compressor maps, just get the 2 final values (Pressure ratio) and (airflow lb/min) and look at them on any compressor map.

But i'll try and add it.

ealoken

Nice, can you add the GTX3582 Gen2 compressor map also?