Seems like all the midrange differences are 3500-4500, and all the topend 6000+

Pretty cool set of comparos, really helps to have them all laid out together like that.

 

lol at the 2871 tq curve.

 

Here's the FM2R car vs. a MSM Hydra with bolt-ons. You can see how un-awesome the IHI is, for what it is.


And the FM2R car vs. our shop 1999 FM2 (on a stock engine) car.


Sorry to stray, but the more comparitive info the better.

 

If you're posting dyno plots no one's gonna complain. We love dyno plots around here

 

I read hussie's post about his VICS manifold being held zip ties. i swapped a 99 motor with vics to my POS and I sure don't have any solenoids controlling the opening or closing of the butterfly on the plenum. I am assuming that the actuator in the front of the manifold does not close or open the butterfly, therefore the butterfly should always be open and that's good for power in the upper range of the rpm, right?

 

yes. but you really want to hook up the vics and help your midrange torque

 

Now that you mention that I definitely feel that my older setup (95 1.8) was quicker before hitting full boost. Any links to a "vics solenoid for dummies" thread?

 

https://www.miataturbo.net/diy-turbo...how-add-72249/

 

yes. Brain just made one yesterday

*edit: G beat me to it

 

If you have VICS you should absolutely hook it up- it works. My default cross is 5400 RPM in the turbo cars. Dyno one run on, one off, set where the lines cross.

FWIW, VICS wired "on" = VTCS. IOW a loss of top end.

 

Thanks!

You're slow


Great something else to add to the list of what to do. However I remember taking the solenoid (which I didn't know what it was atm) and placing somewhere I don't recall and then moving. With that said I may have lost it along with the valve check. Hopefully I'll sort these parts and add some win to my car over the summer

 

Hey Jeremy just for giggles 'n' *****, can you overlay my last pull on your dyno with my MSM? I'm pretty sure i made 238wtq @ 3800rpms...

It was the last-minute deal on the car i picked up in California the day before on my way home in late July 2011.

 

Sure, which do you want me to overlay it against?

 

Hooking it up was so easy it hurt.

 

Wait, so any comments whether flat top is better than VICS on a completely stock Miata?

I do appreciate the dyno graphs though

 

Igor i suppose. I'm agonizing over whether or not it's worth swapping this setup out as long as i'm on the stock motor. Gut feeling says "no."

Actually i just remembered there was some funkiness with the last 245whp/238wtq pull, though. If that one doesn't look completely terrible then i'd like to see it, otherwise the 2nd to last one is fine.

Bonus points if you can show what kpa/psi the run was at.

Thank you!

 

supposedly the flattop flows enough additional air that your stock computer won't be able to compensate and you'll lean out

 

Really? I would have expected the MAF would be able to account for extra flow.
Anyways, the car in question is a 99 with intake, BP5A cam, 01+ exhaust. Just trying to decide whether to keep the VICS manifold or install the squaretop I have.
I understand I'm probably the only person trying to install it onto a mostly stock Miata

 

Just think about the location of the MAF.

I would say save up some money to get a standalone. With the standalone + Squaretop, you'll get a nice bump in HP and Tq.

 

I can't for the life of me remember where I saw this (probably m.net) but BP5A cam + squaretop + RB or NB2 OEM header + BP4W ECU = lean up top.

I saw it as a statement, I never saw any sort of data or log to back it up. It makes sense though, WOT goes open loop and the stock ECU probably can't compensate.

It would be nice to get some hard data, this is why most of these parts are still sitting in my garage.