DIY Turbo Discussion greddy on a 1.8? homebrew kit?

1.6 External wastegate turbo manifold options

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Old 07-20-2018, 12:52 PM
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Default 1.6 External wastegate turbo manifold options

Hi guys, been looking for an external gate manifold for my 1.6, T3 flange is prefered. Havent been able to find anything of substance.
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Old 07-20-2018, 01:07 PM
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I assume that is because anyone who needs an external WG isn't going to use a 1.6. The first step to putting an external wastegate on your 1.6 is installing a 1.8
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Old 07-20-2018, 01:08 PM
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Anyone with anything of substance?
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Old 07-20-2018, 01:17 PM
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You should realize, you can find it if it is out there, by google searching. There is no reason to make a thread asking a question like this...
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Old 07-20-2018, 01:21 PM
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Well, by google searching, i have returned nothing, I made a thread here to see if anyone who has encountered similar issues has found a solution.
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Old 07-20-2018, 02:26 PM
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Why do you want an external wastegate?
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Old 07-20-2018, 02:56 PM
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To run a bigger turbo, With a t3 flange most turbos that are ball bearing are only external wastegate, Id like to run a bigger precision, but will require a different manifold or cutting up my cast log manifold and welding it in.
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Old 07-20-2018, 03:03 PM
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Honestly, I think cutting / modifying the existing one will be your only option other then having one made. If that's the route you want to go, check out here: https://www.miataturbo.net/fabulous-...-thread-72795/
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Old 07-20-2018, 03:06 PM
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sweet, wasn't trying to be a dick guys, just really bummed with options for the little 1.6
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Old 07-20-2018, 04:09 PM
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Is there really any point to running a big turbo on a 1.6?
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Old 07-20-2018, 04:27 PM
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sure, the head design isnt anywhere near as good as later 1.8 engines, but others (mr.mattman and greg from car passion channel) have made big power on them. Matt's car is stock head with a built bottom end, making over 500whp.
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Old 07-20-2018, 05:16 PM
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Originally Posted by crash12190
sure, the head design isnt anywhere near as good as later 1.8 engines, but others (mr.mattman and greg from car passion channel) have made big power on them. Matt's car is stock head with a built bottom end, making over 500whp.
Didn't greg do ~300whp on a 2554? Not a big turbo and not exactly big power. I still don't see why you think you need EWG. What is your whp goal?
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Old 07-20-2018, 05:42 PM
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Id like to be around 400, but if i had to go the t25 route i would, just not what id love to do
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Old 07-20-2018, 05:51 PM
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Originally Posted by crash12190
Id like to be around 400, but if i had to go the t25 route i would, just not what id love to do
Plenty of IWG turbos are capable of 400whp.
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Old 07-20-2018, 06:04 PM
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An efr for one, is a t25 and will make 400
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Old 07-20-2018, 06:09 PM
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Originally Posted by ryansmoneypit
An efr for one, is a t25 and will make 400
Yep, 6758 would be my first pick.
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Old 07-21-2018, 10:45 AM
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awesome guys, thanks for the help
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Old 07-21-2018, 01:52 PM
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I think the 6258 would be better for the 1.6 IMO
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Old 07-21-2018, 02:19 PM
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Originally Posted by ryansmoneypit
I think the 6258 would be better for the 1.6 IMO
He won't make 400whp on a 6258.
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Old 07-21-2018, 02:25 PM
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Excuse me, but are these dumb clueless questions and statements seriously being asked/stated by a CERTIFIED PROFESSIONAL TUNER WHO TUNED 30+ Miata’s in his area?!

from your very first post you were a clueless mattman/broke n boosted fanboi. Should’ve at least done enough research to not be so blatant and at least appear like you know what you’re doing

What’s funnier is that just about every single noob who claimed to know something ended up being more clueless than your average high school sanceboi
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