[Hiflyer746]

I'm trying to find a source of compressor maps for various turbos. . . and having a hard time with it. I would like to compare a bunch of them to try and make a more mathmatical decision on turbos for my truck. Obviously I'm interested in the K31's and the PS 62. If anybody has a clue where I can get them that would rock. Thanks
Tim

 

[kainers]

http://www.rbracing-rsr.com/turbotech.html

 

[Hiflyer746]

All of those maps appear to be turbonetics turbos.
Tim

 

[69W900A]

K31 is a BG, call a BG vendor or call them directly.

PS62, good luck getting a MAP outta those guys.

 

[Hiflyer746]

i think you're right. . . its time to start calling people. But with new info I'm learning. . . I'm starting to think that Compressor maps won't help me as much as i thought I'll just ponder all of this for a while.
Tim

 

[69W900A]

Sorry, I meant BW, not BG.

Ahhh, compressor maps are pretty important. They give you a lot of info about performance. But, if you want to do something that is not a proven setup you'll have to do all the math and the maps are just one part of that.

 

[Hiflyer746]

Ha. . . funny i never would have noticed that. But either I knew it was borg warner or I just assumed. oke: there is no reason for the poking here. I just havn't used it yet. . . and it amuses me
Tim

 

[Charles]

That's one hell of a map right there. You'll have a hard time beating that map for a first stage compressor on a street truck. A DAMN hard time.

 

[Vq2Fast4U]

Good luck getting maps from any turbo maker, they keep them under lock and key. You best bet if to comb the internet. Trust me, I searched high and low for maps when I was setting up my car for FI. The manufacturers dont want them in the competitions hands.

 

[69W900A]

Any of the mainstream vendors will be more than happy to provide maps. I've had Garrett, BW, KKK, Switzer, Rotomaster and Holset all provide me with any map I wanted with a quick phone call.

The poeple who are difficult to work with are the aftermarket guys like HTT, TN, etc. They aren't nearly as forthcoming.

 

[bbunting]

What map do you want? Here are some....



76



106


PS-TN is having all of the new wheels reflowed, so they'll have some updated maps on their new site soon-they were listed on their old site 30 days ago, so its no secret. These are before the new F1 turbine wheels.....so flow numbers will improve.

 

[69W900A]

TN didn't have an online map for the drop-in turbo. Are these new wheels going into the drop-ins, BB or otherwise?

 

[schmity]

I have a few maps here:

http://www.sandstormranch.com/turbo2.xls

You can change the numbers on the calculations tab and it will automatically change the graphs, but the legend won't change.

 

[schmity]

That's one hell of a map right there. You'll have a hard time beating that map for a first stage compressor on a street truck. A DAMN hard time.

What are you calling a street truck? At 300HP you barely on the bottom left of the map. How would you ever get it to spool? Even your website says 850-1400HP.

 

[Logan21SV]

He uses that turbo as a big charger on a compond setup.

 

[Charles]

My truck produces exactly 300rwhp in my daily setting. It also produces 35lbs of boost in that setting just as it sits with the GT47 as the first stage compressor. Oh, and it does it in one helluva hurry.




Oh, I just realized that you're probably using the old 10lbs/min for every 100hp rule of thumb here. Doesn't work out like that for a diesel. We're not running at stoich. Trust me, mine's moving a tad more than 30lbs/min at 300rwhp.


On Edit:

This is a video of the truck in the 300rwhp program absolutely cruising. Never more than half throttle and the boost perfectly follows my foot. Notice the boost gauge (top one is second stage "Manifold" pressure). Even with the tiny little bit of pedal I was giving it that was all on top of 30lbs of boost just cruisin. Also notice that without any effort at all the truck is just going about 55 or so on the speedo with 35" tires and 3.73's. Trust me, it is a very, very streetable turbo.

http://videos.powerstrokenation.com/recentvideos/2/19d37429-19e3-4558-a76c-99b60137606b.htm

(If you're not familiar with a 60lb boost gauge 30lbs is about 11:00. 20lbs is about 9:00

 

[Hiflyer746]

I honestly don't think I'll be able to make room for that charger without a body life. that boys has got to be pretty big.
Tim

 

[bbunting]

I honestly don't think I'll be able to make room for that charger without a body life. that boys has got to be pretty big.
Tim

We have an 88mm on two trucks without a body lift, and with AC-FYI.

 

[schmity]

My truck produces exactly 300rwhp in my daily setting. It also produces 35lbs of boost in that setting just as it sits with the GT47 as the first stage compressor. Oh, and it does it in one helluva hurry.




Oh, I just realized that you're probably using the old 10lbs/min for every 100hp rule of thumb here. Doesn't work out like that for a diesel. We're not running at stoich. Trust me, mine's moving a tad more than 30lbs/min at 300rwhp.


On Edit:

This is a video of the truck in the 300rwhp program absolutely cruising. Never more than half throttle and the boost perfectly follows my foot. Notice the boost gauge (top one is second stage "Manifold" pressure). Even with the tiny little bit of pedal I was giving it that was all on top of 30lbs of boost just cruisin. Also notice that without any effort at all the truck is just going about 55 or so on the speedo with 35" tires and 3.73's. Trust me, it is a very, very streetable turbo.

http://videos.powerstrokenation.com/recentvideos/2/19d37429-19e3-4558-a76c-99b60137606b.htm

(If you're not familiar with a 60lb boost gauge 30lbs is about 11:00. 20lbs is about 9:00

Ok, you have my attention.

I was assuming 20 lbs/air per 1lbs/fuel. Never heard of the 10lbs/min per 100 HP.

If that turbo will spool like you say and make enough air for 1400 HP...Why do you need a dual setup?

 

[Charles]

It only spools like that in a compound setup because the 38R makes that 444 cubic inch engine a 900+cubic inch engine for the 47 to feed.

With the gate held totally open on the 38 the 47 will not make 5lbs of boost until 2500rpm. And will only barely start to come up on boost by redline.

As a single it would be beyond worthless, because you'd only have a 444 cubic inch engine to spool it. Once the 38R puts about 15 or so lbs on the 444, you've got the same basic deal as if you had the GT47 sitting atop a 900inch engine.

I don't remember saying 1400hp, but if I did I don't know why. I think it would be good for about 800ish. But that also depends on your smoke acceptance too. If you don't have a problem with smoke you could ease on up closer to 1000 probably.

Not to mention that it would be a totally different ballgame if it were at 50lbs of boost (it only runs about 25lbs now in the compound setup) and the efficiency would be a fraction of what it is now, it would move LESS air even at the higher pressure when compared to the way it is run in the compound setup and so on. Can't compare a single to compounds like that. Different ballgame.