Looking good....thx for posting the videos!

It was only a matter of time. Here are some pics of the new wheels being test fitted.

https://www.miataturbo.net/attachmen...ine=1416193034[/URL]

https://www.miataturbo.net/attachmen...ine=1416193034[/URL]

https://www.miataturbo.net/attachmen...ine=1416193034[/URL]

https://www.miataturbo.net/attachmen...ine=1416193034[/URL]

https://www.miataturbo.net/attachmen...ine=1416193034[/URL]

https://www.miataturbo.net/attachmen...ine=1416193034[/URL]

Sweet looking wheels.....275s still?

wait.. class change?

Those look like Bogart wheels.

Yea. Sticking with 275's. Until someone builds a 315 30 15

It was just a one event thing. There was nobody in SSM so we ran XP to have someone to race

Good eye :) 15x11 Bogarts

Thanks to Y8 for charging the thread title to something more appropriate. I figured since there was a lot more than head porting in here now, it was time.

A few pictures of some of the off season upgrades

https://www.miataturbo.net/attachmen...ine=1417787285[/URL]

https://www.miataturbo.net/attachmen...ine=1417787285[/URL]

https://www.miataturbo.net/attachmen...ine=1417787285[/URL]

Hate away my Turbo powered cousins :)

You seem to post "hate away" in just about every other post. And no one is hating. And I don't think anyone has ever hated. You think maybe its time to stop being so defensive and dramatic?

Anywho, recent upgrades look hardcore. I'm curious: are you using na, nb, or custom trigger setup with those cams?

I hate him - cause he's actually getting shit done. Actually, it's more redirected hate from my current lack of track car. :P
Keep in it Eric!
Cam spec profile, do tell!

Come on, you know cams are more black magic and voodoo than shocks, theres a secret agent claus on all cam spec sheets that talk about telling and killing. :jerkit:

Those are pretty serious looking ramps and I'm looking forward to more progress here!

It's just based off the general distain for superchargers around this place :)

I'm using a 36-2 tooth crank trigger with a modified NA CAS for cam sync signal.

Haaa. Thanks man. It's so much time and work to have a car this fast and to keep developing it. Thanks foe the words of encouragement

Looking great! My old SM build (for a VW, but very similar to this) used some pretty crazy cams with more lift and more overlap than anyone (at least in the VW world) thought would work on a SC motor. Enough overlap to hear it in the exhaust. Lots of people seemed to think that you couldn't go too aggressive with the cam on an SC motor. But it just kept making more power, and didn't seem to hurt torque at all.

What wheels did you have previously? If they're 15x10, have you (or do you plan to) test them back-to-back? We're on 15x10s just because that's what everyone else seems to run. That's what our car had when we got it, and we're still pretty new to the Miata, so we've got plenty of other stuff to play with. But based on what I've found with A6s in other classes, I suspect the 275s might like a 10.5-11...

I tend not to listen to "they"(i.e. "lots of people") when it comes to my setup. "They" say a lot of things that have turned out to not be true :) I have found that with the twin screw it has unique needs especially with cam and valve timing.

These cams were designed by taking flow bench data from the head, the map of the blower, data logs from 10 National events to get a real RPM band, static and dynamic compression ratios and about 9 other data points. The lift increase is dramatic over a stock cam. So much so that there is no way these profiles would work on a motor that needed to last more than @15 hours between rebuilds. They also required some custom (read very expensive) valve springs to control them.

I haven't tested the 10's and 11's back to back. I would imagine that any data would be simply anecdotal. I imagine that the 11's will require tweaks to shock settings as well as possible spring changes. Even if they don't make the tires work any better, they are lighter than the 15x10 949 6ULs and they look better :)

Any clue to us less experienced why the base circle is narrowed?
Less drag and less weight of course, but is it that simple?

Those things along with oiling advantages. Several other OEM make / model cams have this type of base circle.

https://www.miataturbo.net/attachmen...ine=1420321559[/URL]

Parts are back from B&B Performance Engines. Spent the day cleaning and measuring. Gonna set the ring end gaps tomorrow and start throwing the rack in it on Monday.

Do you use torque plate and torqued main caps to resemble distortion from torqued cylinder head and torqued down main bearings? If so, did you notice the difference in ring caps?