236whp, ~14.5psi / Begi Churbo, Stock 1.6L
#1
TheCarPassionChannel
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My recent re-tune @ Advanced Engine Dynamix in Orange, Ca.
196,000 miles on the stock 1.6L longblock
91 Octane
Begi "T25/28 Hybrid" @ ~14.5psi
MS2PnP
Begi Cast manifold + downpipe
2.5" Catless
(Red graph was 10 months ago, untuned @ 10psi)
196,000 miles on the stock 1.6L longblock
91 Octane
Begi "T25/28 Hybrid" @ ~14.5psi
MS2PnP
Begi Cast manifold + downpipe
2.5" Catless
(Red graph was 10 months ago, untuned @ 10psi)
![](https://www.miataturbo.net/attachments/dynos-timesheets-21/137778-236whp-%7E14-5psi-begi-churbo-stock-1-6l-mtrn5u.jpg?dateline=1429050869)
#5
TheCarPassionChannel
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I have yet to drive a turbo 1.8... but I have the feeling I'll want to swap if I do. I'm guessing along with the bigger lung capacity the 1.8L head flows better as well? I have driven a friend's KA24 S13 with a GT2560R, it literally feels naturally aspirated compared to mine. I don't have an apples-to-apples comparison but I'm sure the 0.86 A/R on this turbo puts a damper on its spool-up.
#8
Former Vendor
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Would have cost you around $600 to upgrade if you had done it before you started the turbo build. Hence the cadre of members here who implore people building 1.6 turbo cars to swap to a 1.8 early on.
#9
TheCarPassionChannel
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