A running pictorial of my monster Protomotive build
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Originally Posted by z8cw
Once the mismatch between hot and cold side becomes to large you will create too much back pressure in the turbine housing and won't be able to produce any meaningfull HP numbers at higher RPMS.
Craig
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The GT35Rs are much better for quarter mile, no question. It might require a 50 shot to bring them up off the line but they will eat the GT30Rs for lunch in the top end. Because our cars are so dog**** on the launch you will always be relying on that top end charge to claw back some ET.
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Originally Posted by cjv
The GT30 turbo's will run out of breath above 7400 rpm's. They do start earlier as in 3400 rpm's. The GT 35's really don't come on until about 4300 rpm's but they breath well to 9000 rpm's.
If you hasve big valves and ports go with the 35's. If not stay with the 30's.
If you hasve big valves and ports go with the 35's. If not stay with the 30's.
Are these numbers based on your build or stock and what A/R was used on the hotside?
Thanks
CW
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More progress made.
Cynthia almost has lower end finished. The Ductile iron liners will get pressed in next.
Also, Todd is now starting my port work. He'll be doing the majority of the intakes on his mill, then handfinishing them.
Here's a pic of my stock head, compared to stock GT3 and stock GT3RSR heads.
Also, Todd is now starting my port work. He'll be doing the majority of the intakes on his mill, then handfinishing them.
Here's a pic of my stock head, compared to stock GT3 and stock GT3RSR heads.
Last edited by cjv; Mar 15, 2007 at 01:17 AM.
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Scott,
Please update us,
which of the three above heads are you using??
Really cool picture of the three heads!!!
Are those the exhuast ports we are looking at (that are so large on the GT3RS)??
Marty K.
Please update us,
which of the three above heads are you using??
Really cool picture of the three heads!!!
Are those the exhuast ports we are looking at (that are so large on the GT3RS)??
Marty K.
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From: Virginia, USA
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Originally Posted by WOODTSTER
Scott,
Please update us,
which of the three above heads are you using??
Really cool picture of the three heads!!!
Are those the exhuast ports we are looking at (that are so large on the GT3RS)??
Marty K.
Please update us,
which of the three above heads are you using??
Really cool picture of the three heads!!!
Are those the exhuast ports we are looking at (that are so large on the GT3RS)??
Marty K.