Turbo design

[m-35tom]

Does anyone have a lot of knowledge designing and sizing turbos? I have a 9.0 litre diesel that will not be run at 2500 rpm in a m-35, and want to choose two water cooled turbos for it. I do not want any more than 8 psi boost. i know there are many other input criteria and i am working to get them. max fuel consumption (whole engine, 8 cylinders) 840 cc per minute without turbo, i just want 40 more hp. i am thinking that just burning the wasted fuel (black smoke) might do that.
Tom

 

[gimpyrobb]

Ken was pretty good with turbos. I haven't seen him posting in a while though.

 

[m-35tom]

ken?

 

[gimpyrobb]

There is only one user id here that is Ken. Do a search and it should bring him up. He is in Tx

Best I can do, sorry.

Jwaller plays with turbos for a living if memory serves me correctly, might try him too.

 

[HanksDeuce]

Here are a few helpful links:
http://www.hotrod.com/techarticles/engine/hrdp_1205_how_to_buy_your_first_turbo/viewall.html
Neat article with input on 3 different sized engines from multiple vendors.

http://www.turbobygarrett.com/turbobygarrett/choosing_turbo
Good read for turbo sizing basics.

http://www.squirrelpf.com/turbocalc/
Killer Turbo Sizing Calculator with actual compressor maps. Needs engine parameters to work properly.

 

[m-35tom]

thanks hank, problem is that these sites are for gas engines and get crazy results for big slow turning diesels. i have some more engine specs, but it gets very complicated. i was hoping there might be someone here with design experiance.
tom

 

[HETvet]

Well what are the other engine specs? We need something to chew on. I was going to ask for BSFC, cam specs, head flow,

 

[HETvet]

GTB2260VKLR made by Garrett

 

[m-35tom]

i was thinking about something like this

http://www.ebay.com/itm/310826964204?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

[HETvet]

Those things come stock on the mazda speed engines; 2.3 liter 4 banger turbo engine. Stock it's putting out 8 psi and on that engine can only push about 10-15 psi with the stock SMIC.

The turbo I suggested is one of the 2 turbos that come stock on the 6 liter V12 audi twin turbo TDI that is in the euro spec Q7 TDI. Ball bearing and water cooled.

 

[m-35tom]

have not been able to find compressor side maps for the 2260 or 2860, need range of 10 to 15 lbs/min @1.68

 

[HETvet]

I'll get it for you

 

[HETvet]

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