Things that make ya go HMmmmmm????

[Diesel Freak]

oh boy that brings back some memories!!!

 

[Devan Manis]

did a little web crawling today.



Found some interesting (but not completely unexpected) info.



I think I will share it.



so, would someone please tell me how a 60 pound per hour turbo can support 600 HP? :-laf



oh, the bottom one is a HX35

to make sure i do these right the ambient temp is 85degree's farenheit according to the bottom of the hx35's map and the atmospheric pressure is 13. 94? in stead of 14. 7, right?

 

[Diesel Freak]

looks that way

 

[biggy238]

Uh huh...

DF&FG, you guys come up with some fancy numbers. We know what works and thats all that matters. While were out making serious HP, you two are still working on some math calculation to try and figure out how to make HP. I'm tired of with you two. You 2 are intitled to your own opinion, if you could see it you would definitely believe it.

I just can't handle this. . I haven't made it past this point. :-laf



I'll reserve my comment on the issue.



Thanks for the explaination though... This is exactly what I remember reading. . although you made it a little more applicable DF.

Someone needs to build an online calculator for all of this.

 

[Devan Manis]

I think they have one called turbo calculator or something, but i don't know for sure if you have to pay for it or something.

 

[Diesel Freak]

it's more fun figuring it out yourself... then you dont need a friggin 'puter to do the thinking for you, and you have a better understanding of the concepts

 

[Devan Manis]

I have to agree with this, but DF probably knows a few short cuts that I don't.

 

[Diesel Freak]

heh heh, yep, they are on my computer!!!!

 

[pwerwagn]

Someone needs to build an online calculator for all of this.

ask, and you shall recieve... .



http://not2fast.wryday.com/turbo/glossary/turbo_calc.shtml



its fun to play with.

 

[Diesel Freak]

WOW, wish I would have known about that a year ago!!!!



Would have saved a lot of work!!!!!



But its is nice to see that I am on the right track!!!!

 

[biggy238]

Yeah. . where are you on that NOW DF?!?!



I understand it loosely... The concepts are fairly simple... Compress a gas in a system and T goes up. Increase Blade speed and inefficiency becomes an issue. .

I did all of this 3 years ago when I was in a physics course... but 2 following years of the factory life has dulled the senses... .



The real reason I wanted the calculator is the ability to observe... . I hate just looking at equations. . It's easier to understand if you see it used, even if just once.

 

[pwerwagn]

Of all the online calculators I've used, that one is bar none the best I've run across. I use it/play with it all the time. There is one more out there that is also pretty good, but it is designed for bikes and only has the ability to input 4cyl.



If i remember correctly, it was used to pick the turbo that my buddy used on his world record Turbo Mazda Miata... . and it worked .

--Jeff

 

[pwerwagn]

So DF, at this point, what do you think is the best engineered twin setup out there?

what about the best single?

 

[Fishin Guide]

So DF, at this point, what do you think is the best engineered twin setup out there?

what about the best single?

Uh-oh, now you've done it.



Dave

 

[Diesel Freak]

So DF, at this point, what do you think is the best engineered twin setup out there?

what about the best single?

Good Question.



All the vendors hide behind Non Disclosure Agreements and other "Proprietary" BS. They will not give out any usefull info to allow anyone to make a decent comparison.



But, I did just get an e-mail with three other Holset Compressor maps... .

 

[pwerwagn]

I agree with that. Its all a big secret, like diesels are "pioneering" the use of turbos. its funny how you can get tons more info on our HX35 off a DSM forum than you can here... .

I just thought maybe you had more of an inside track for info than me... thought maybe you could make better comparisons.

so what do you have now, HX-35, 40, 50 and 55 maps???

 

[Diesel Freak]

Here is a HX40 map that I would never use. I would bet money that this is the one some vendors compare their turbo to to say theirs is better than a HX40... . other than the little turbine shaft

 

[Diesel Freak]

This one is a little better, but not what I would want to use.

 

[Diesel Freak]

here is the best of the three HX40 maps I now have. I hope this is similar to the one that is in my turbo!!

 

[Diesel Freak]

its funny how you can get tons more info on our HX35 off a DSM forum than you can here... .

No kidding!!!!



It's hillarious that the import people that we all love to pick on have more info at their disposal about the most common turbos that WE USE!!!!!!!!!!!!!!!!!!!!