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Old 03-22-2013, 09:55 PM   #1
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Default Swapping a 1.6 turbo setup to a 1.8

Hi I am currently looking into getting a Miata t. I found one but its a 1.6 turboed. My questions is lets say down the line the 1.6 ***** out on me, can I swap all the parts over to the 1.8? Its a begi turbo setup tuned on ms pushing 220 rx8 injectors. Thanks for the help! I have tried to search for this but cant find anything about swapping the turbo kits over
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Old 03-22-2013, 09:59 PM   #2
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The manifold will not be good and depending on your exhaust that may need some modding. Also if you have an intercooler it may need some reworking.

The 1.8 is slightly longer and it makes the downpipe sit back a bit further. Depending on your exhaust you may need mod it to fit.

I had top mount ic piping and had to manipulate it a bit differently due to the lost space between my engine and the sway bar. The manifold is the only thing not possible to modify in a pinch though so you WILL need a new one.

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Old 03-22-2013, 10:04 PM   #3
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Originally Posted by krissetsfire View Post
Most. The manifold will not be good and depending on your exhaust that my need some modding. Also if you have an intercooler it may need some reworking.

The 1.8 is slightly longer and it makes the downpipe sit back a bit further. Depending on your exhaust you may need mod it to fit.
okay thanks I really appreciate the info
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Old 03-23-2013, 09:10 AM   #4
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what about the injectors will they swap over I can still use the ms right? Just need to get it reworked?
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Old 03-23-2013, 09:42 AM   #5
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An engine is an engine. If you're putting a 1.8 in place of a 1.6, you don't have to touch the MS as long as you use all the 1.6 electronics like the coils and CAS.

Injectors work the same '90-'05, but obviously you're going to need more head room, since you're now fueling a larger engine.

I'm guessing you meant 440rx-8 injectors? I've never heard of 220.
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Old 03-23-2013, 10:00 AM   #6
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what manifold does it have?
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Old 03-23-2013, 10:17 AM   #7
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An engine is an engine. If you're putting a 1.8 in place of a 1.6, you don't have to touch the MS as long as you use all the 1.6 electronics like the coils and CAS.

Injectors work the same '90-'05, but obviously you're going to need more head room, since you're now fueling a larger engine.

I'm guessing you meant 440rx-8 injectors? I've never heard of 220.

Yea sorry I meant pushing 220hp but yea it's got rx8 injectors so the seller says.

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what manifold does it have?
I am not sure my guess would be the one that comes with the begi s setup
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Old 03-23-2013, 11:52 AM   #8
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then youd just buy a new begi manifold for a 1.8L. that's about all you'd need, that and the 1.6>1.8 FM install kit maybe.
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Old 03-23-2013, 11:57 AM   #9
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then youd just buy a new begi manifold for a 1.8L. that's about all you'd need, that and the 1.6>1.8 FM install kit maybe.
Okay thanks I really appreciate the info
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