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Matt93SE

Matt93SE

Member Since 23 Jul 2011
Offline Last Active Yesterday, 10:41 AM

In Topic: Kicking the Hornets Nest

Yesterday, 10:43 AM

OT - I really want a bridgeport 13b in my Miata @Matt93SE or whatever it takes to get ~200whp at 8-9k. 

A properly built street port 13B will put you there without a problem.  I haven't dyno'd mine, but previous cars built and tuned by same guy are ~210 whp in a 1st gen and ~190whp in a 2nd gen..   And that's on the Weber 48IDA carb and intake manifold that's legal for EP..  I can take the SAME engine and swap the intake manifold and carb for a 51IDA and larger chokes and make ~250whp.   

That's on a street port-- engine life in years, not hours.  typical refresh on one of these engines is in the 50-100hrs range, depending on how much routine maintenance you do.   and that's a simple $1500 refresh for new gaskets and seals, not a major rebuild..  (equivalent to a head gasket/ring job on a piston engine)


In Topic: Kicking the Hornets Nest

Yesterday, 10:21 AM

You had me at "sideways the whole time" and then further sealed the deal with "big boy pants".  This is exactly what I need in my life.

Fun on old tires with Caterhams... 


In Topic: Kicking the Hornets Nest

Yesterday, 09:23 AM

I definitely felt ABS kick in when I had it enabled.  It wasn't necessarily intrusive though.  This probably sounds stupid, but I'm kinda OCD about trying to chase a pure driving experience with little to no computer aids.  The challenge of mastering threshold braking without flat-spotting tires is part of the allure for me.

 

The ABS hate started when I was really enjoying a rain session at MSRC (with ABS kicking in frequently) and my instructor said, "Good job, but try doing this in the wet without ABS like on my NA Miata."  This was the "hold my beer/challenge accepted" moment when I decided to disable ABS and prove to myself that I didn't have to rely on ABS to save my ass.

 

Maybe I should just buy an older, carbureted car with no computer aids to chase that experience?  In the meantime, I'm going to try to find ways to take my relatively modern NC Miata back to the stone ages.  However, it seems that my ABS disable solution is not the right approach per Derek's feedback - so I need to do more research there.

 

buy my first gen RX7..   ~200whp, ~1800-1850lbs (without driver. I've forgotten how much ballast I have in it to get to 2190 w/ driver).  solid axle, no ABS, no traction control, no power steering.  A proper driver can do 1.42 at MSRH in it, possibly faster- but you'll be sideways the hole time to make it happen.  Put on your big boy pants and drive a REAL race car.


In Topic: The LE5pard - Nix's Ecotec Miata Build

19 November 2018 - 11:11 AM

How bad are exhaust temps on that engine?   I assume they're nowhere near as bad as a rotary (..hope you don't have to deal with >1600F exhaust temps!)   I've had good luck with the DEI floor & tunnel shield stuff.  I have 1 layers of it +-12in on the exhaust, another layer +-6in, and then I hit what's left of the hot spots on the inside of the car with one more layer. (there are a couple spots where the 3.5" exhaust basically rubs on the insulation.  it used to have 1/4" clearance to the floor, but I filled that gap with insulation..) all of this is on the right side of the car similar to your setup..

 

I also covered the driver's side of the trans tunnel from the front edge of the seat down to the footwell area to help shield heat from coming through and cooking my right leg.


In Topic: ECR improvements - can we get regular updates in here?

18 November 2018 - 10:14 PM

it's a long dang way for me..  roughly a 6-7hr tow as I have to go straight through both Houston and Dallas metro areas.  there's not a great time to tow through both of them without hitting one of them at rush hour...