Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   Clutch before or after turbo? (https://www.miataturbo.net/diy-turbo-discussion-14/clutch-before-after-turbo-91310/)

fpscolin 11-22-2016 04:19 PM

Clutch before or after turbo?
 
I recently learned that aftermarket clutches have break-in periods, and now I'm conflicted as to what I should do; turbo my car and get it tuned with the stock clutch (risks wasting money on tuning w/ a slipping clutch) or should I put the clutch in first and just accept the fact that it'll go through some tough pulls during the break-in period.

What route have you guys taken?

yossi126 11-22-2016 04:24 PM

Definitely do clutch first and break it in. That way when you go turbo you can thrash it right away.

psyber_0ptix 11-22-2016 04:25 PM

before

Girz0r 11-22-2016 04:26 PM

/thread

ridethecliche 11-22-2016 04:27 PM

Why not just do the clutch first and break it in NA before you boost.

What are your power goals? If you're on a 1.6 your clutch is probably going to slip with any appreciable boost. 1.8 might hold for a bit, but you're better off not having to worry about a slipping clutch when trying to tune the setup.

Swap clutches, drive the car around town for a week or two with a long drive here and there and you should hit the 400-500 mile limit without too much issue.

fpscolin 11-22-2016 05:19 PM

Sorry, should have mentioned something important: the car is currently stored for the winter, which is when I'll be doing the turbo install. Already have the ECU and injectors in.

My options are to delay the install until the spring (installing the clutch over the winter and doing a springtime break in) or do the turbo install now, and do the clutch in the early spring (either before or after the tune)

ridethecliche 11-22-2016 06:00 PM

What turbo setup are you planning to install? Depending on what you're going for, you can tune on stock clutch at low boost, then swap clutch, run it for a week or two before upping the boost and tuning as you go.

Running it low boost might be a good way to get a feel for tuning and monitoring things while working out kinks as you go.

fpscolin 11-22-2016 06:50 PM


Originally Posted by ridethecliche (Post 1376641)
What turbo setup are you planning to install? Depending on what you're going for, you can tune on stock clutch at low boost, then swap clutch, run it for a week or two before upping the boost and tuning as you go.

Running it low boost might be a good way to get a feel for tuning and monitoring things while working out kinks as you go.

MS2PNP T25/28, aiming for 220rwhp. I'm doing everything myself but leaving the tuning to professionals (I tried my hand at it while still N/A and had moderate success, but didn't enjoy it). Ideally I'll only be making one trip to the dyno.

Edit: Some more info about my build for those curious:
'93 Miata 1.6L
BEGI manifold to FM Downpipe, 2.5" custom straight pipe exhaust
RX-8 420cc injectors
CXRacing Intercooler (still gotta figure out the piping)

ridethecliche 11-22-2016 07:23 PM

Your stock clutch will probably not hold together well enough to get that thing tuned. It's probably going to slip while they're trying to dyno and tune it.

fpscolin 11-23-2016 11:04 AM


Originally Posted by ridethecliche (Post 1376655)
Your stock clutch will probably not hold together well enough to get that thing tuned. It's probably going to slip while they're trying to dyno and tune it.

That's what I'm thinking as well :/ I guess I'll upgrade the clutch and do my best to baby it for a while (nothing I can do about getting it tuned though, oh well). Thanks


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