Found this on another site and thought it might be helpful to bring it over here. We've had few people push the 18g's with awesome results and even fewer (if any) push the 20g's (havent found results)...

There hasnt been much on here about Greddy kits lately with the new rush of kits being made available. Im all for new kits and options for our platform, but im still interested and would like to see more from those of us who run the Greddy kits.

http://www.trust-power.com/ http://www.supraforums.com.au/forum/...-25g-turbo-kit

 

Im still trying to track down the 18g flow chart but cant find one as easily.

 

I've been trying too but every time I google it, images of Alberto's right foot mashing the pedal keep coming up...

 

Nice find, Paco!!!

 

suscribed for a future reference

 

Based on my calculations, and the compressor map shown above, the 20G compressors in a twin turbo setup should push 750 whp on our 3.5L motors with around 75% efficiency. That is really good efficiency.

On a stroked 4.0L motor, they should be good for around 800 whp at around 73% efficiency, which also is very good.

The only caveat is that these calculations assume that the back pressure is not high enough to create a reversion problem. The A/R on the TD06-20G turbine is about 0.59 (I found this on Internet a while back). If the back pressure is too high, this will adversely affect peak HP, and the numbers above will be overly optomistic.

 

didnt gamermods run the 20g kit with his 4.2 stroker set up to high 900's?

 

High 800's so far

 

gotcha, havent looked at it in awhile

 

His 20g's were modified...

 

i looked around other forums and found that 400-420 is what others are seeing hp wise from a single 18g on DSMs

http://www.dsmtuners.com/forums/turb...reddy-18g.html

 

Super Street Online has an article on "How a turbo works" and they have a T%18z 18g stating its good up too 420hp. If you look on the chart the T518z 18g vs the TD05-18g is a little behind on the graph if you line the up..

http://www.superstreetonline.com/tec.../photo_09.html

http://www.superstreetonline.com/tec...bocharger.html

 

Found this also from another site... scroll down abut 3/4 down for more graphs.. good info..

http://www.stealth316.com/2-turboguide.htm

 

 

Please keep in mind the Engine Demand points on the 2 above flow charts are from Mitsubishi 3000GT/Stealth engines (i don't know how they compare to our motors).