Garrett for Sale to large???

[Anonymous]

Hi all Found thhis on NZ Ebay type site but wondered what you thought bout a/r size would this produce a large amount of lag...
go to link below...

http://www.trademe.co.nz/Trade-Me-Motor ... 964393.htm

 

[Anonymous]

you might take a look at the super 70 from turbosunleashed. Our enginge should spool it nicely. IIRC its is good for the 300 to 400 hp range.

 

[Anonymous]

im hoping to get one locally in New Zealand. rather than internationally But thanks anyway any comment of the size its for a 250

 

[Anonymous]

Should be all good, I'm sure nizpro use a similar unit.
3' inlet and 2' out i think.

You'd want to make your engine breath as well as possible before chucking it on though.

 

[Anonymous]

Before you decide on ANY turbo, you MUST find out what the exact compressor trim is, then get the compressor map for it. This is not a guessing game!!

 

[Anonymous]

So Linc...
Wheres the compressor trim i.d We are not all as knowledgable about turbos as you seem to be
1. I have read your complete post twice.
2. I have been eagerly reading all info on this website and others on turbos
3. Ihave the Hugh MacInnes Turbocharger book which I have read cover to cover
4. I still do not understand how to properly read the turbo maps
5. Identifing different turbos is still a challenge.

 

[Anonymous]

The only way to find out what exact compressor it has is to take it to a knowlegable turbo shop. If you measure the smallest and largest diameters of the compresor wheel (inducer and exducer) you can get pretty close, but the compresor housing can also cause changes in trim.

http://www.turbobygarrett.com/turbobyga ... ch101.html

http://www.turbobygarrett.com/turbobyga ... ch102.html

http://www.turbobygarrett.com/turbobyga ... ch103.html


To read a turbo map, you need to know how much air your engine (ummm.....4.1 liter??) moves at each RPM...for a starting point. As you add boost, the amount of air in "pounds per minute" go up with boost.

The amount of air pressure in "atmospeheres" is on the left of the turbo compressor map, the mass of air in pounds is along the bottom. You want to find a suitable compressor that will stay towards the center of the "efficiency islands" on the map.

this will help you along:

http://www.turbofast.com.au/welcome.html

http://www.turbofast.com.au/javacalc.html