Author Topic: External wastegate dumping form manifold to atmosphere?  (Read 5521 times)

Reply #15March 16, 2011, 05:52:39 pm

bugnut

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Re: External wastegate dumping form manifold to atmosphere?
« Reply #15 on: March 16, 2011, 05:52:39 pm »
What are your egt's at full throttle?  When I was running my 1.6 with the k24 my egt's were off the gauge. I could just spin that needle right around, 1600+  That was with the wastegate fully open.  Maybe the k24 is holding you back now.   With the k14 set at 10 psi that should be fully open at 20psi so it should be bypassing the k14 and all the exhaust into the k24.  Now if you are using the stock gate then you might be getting the heat there. 
  Now if I were to put a wastegate on to vent to atmosphere I would do that to keep my drive pressure in check.  But with twins DP shoudn't be a problem if build right.  Just for fun you can hook up a DP gauge and see where that is compared to boost.  Should be 1:1 in a perfect world.






Wow thats awsome, I remember seeing your thread a long time ago. How did it end up turning out? Now that I see that I think Im going to do the same thing for the external on mine, looks alot easier then bucking a hole in the manifold.
Still dont have my engine running yet.  Had a lot of head problems.  Got the valves, head and pistons coated.  went to test the vavles and found out every valve was bent.  The guy I had pick up the head forgot to mention the head moved around and bent the valves.  So I got new valves and had those coated  again.  That took about 2 months out of the build.  Right now I have the engine sitting in the car getting all the hoses plumbed.  Should have it going in about a month :)
1980 Rabbit  1.9/1.6 franko engine.  compound built in the works