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Old Feb 21, 2019 | 02:55 PM
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Default wastegates

so im wondering is two small gates better than one single one . on a single turbo setup ?
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Old Feb 21, 2019 | 03:27 PM
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It really depends on your packaging situation. For me, i have a twin scroll housing and my hotside if completely divided. I decided to just run twin gates to package everything easier. Works fine. There is some redundancy built in, but it also complicates things.
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Old Feb 21, 2019 | 04:10 PM
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Originally Posted by Ping King
It really depends on your packaging situation. For me, i have a twin scroll housing and my hotside if completely divided. I decided to just run twin gates to package everything easier. Works fine. There is some redundancy built in, but it also complicates things.
ive got a t4 plate with a
two 2.5 in pipes for the merge . im thinking it will be easier to run two 38 mm wastegates then build my own merge .
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Old Feb 21, 2019 | 04:13 PM
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Originally Posted by freeky


ive got a t4 plate with a
two 2.5 in pipes for the merge . im thinking it will be easier to run two 38 mm wastegates then build my own merge .
I used a powerstroke merge with a t4 flange and 2" piping for my hotside. It just ended up working out with the angles.


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Old Feb 21, 2019 | 07:43 PM
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Originally Posted by freeky


ive got a t4 plate with a
two 2.5 in pipes for the merge . im thinking it will be easier to run two 38 mm wastegates then build my own merge .
I run the same merge. I ran for a while with 1 44mm on 1 bank, worked great, I could run 4 psi if I wanted. I recently built a merge for my wastegate to hook it to both banks, I can't tell a difference it seems the same. But I also have a tiny turbine atm, so a lot of back pressure.

you can also put 1 gate on the housing. A lot of guys do that
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Old Feb 21, 2019 | 09:08 PM
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Originally Posted by Lsxford
I run the same merge. I ran for a while with 1 44mm on 1 bank, worked great, I could run 4 psi if I wanted. I recently built a merge for my wastegate to hook it to both banks, I can't tell a difference it seems the same. But I also have a tiny turbine atm, so a lot of back pressure.

you can also put 1 gate on the housing. A lot of guys do that
was you able to mig weld to this merge or did you have to tig weld it
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Old Feb 21, 2019 | 09:23 PM
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Originally Posted by freeky
was you able to mig weld to this merge or did you have to tig weld it

I mig welded it just fine
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Old Feb 22, 2019 | 12:50 AM
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Originally Posted by Lsxford
I mig welded it just fine
that's what I wanted to hear
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Old Feb 22, 2019 | 05:23 AM
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I’ve got the same one also and run 2 38mm tials. Works perfect
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Old Feb 22, 2019 | 06:32 AM
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Originally Posted by RobertD
I’ve got the same one also and run 2 38mm tials. Works perfect
do you have a pic of your setup
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Old Feb 22, 2019 | 06:59 AM
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Old Feb 22, 2019 | 07:10 AM
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thanks robertd for the pics
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Old Feb 22, 2019 | 07:12 AM
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No problem at all
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Old Feb 22, 2019 | 07:19 AM
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robertd whats your setup . engine turbo tranny rearend ?
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Old Feb 22, 2019 | 09:39 AM
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i wanted to run 1 waste gate just because its a single piece. but i always debate what would be cheaper and better.

im not at the point of fabbing yet ( waiting for my painter to paint the goddamn bay ) but when the times comes ill see where goes what!

i kinda wanted a 3 to 1 t4 flange but no one makes that lol
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Old Feb 22, 2019 | 09:52 AM
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Originally Posted by freeky
robertd whats your setup . engine turbo tranny rearend ?
99 mustang
-gen3 4.8, sloppy stage 2 cam pac 1218 springs and doing head studs this weekend
-gt45 69mm turbo
-th400 rmvb with a brake, fti street racer 9.5 2800-3k stall converter
-built 8.8 with 327 rear gear
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Old Feb 22, 2019 | 10:02 AM
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Originally Posted by RobertD


99 mustang
-gen3 4.8, sloppy stage 2 cam pac 1218 springs and doing head studs this weekend
-gt45 69mm turbo
-th400 rmvb with a brake, fti street racer 9.5 2800-3k stall converter
-built 8.8 with 327 rear gear
not bad at all! i had a buddy with a 4.great and that cam and springs ( same im running in my 5.3) but he had a 7875 and e85 and he made i believe 510 on 8 psi or 10? i dont remember
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Old Feb 22, 2019 | 11:35 AM
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From: Saskatchewan, Canada - where arguing "DA" is for the slow and weak...
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I ran a 60mm gate of a 3" pipe after the merge. This was all to do with packaging, weight, and not having it dump to atmosphere.

https://ls1tech.com/forums/forced-in...l#post19985279
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Old Feb 22, 2019 | 11:39 AM
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bet u never got creep with that 60mm
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Old Feb 22, 2019 | 12:04 PM
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Originally Posted by panda240ss
bet u never got creep with that 60mm
We'll see... I hope to have it up and running for the Spring.
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