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-   -   Crusher (https://www.miataturbo.net/race-prep-75/crusher-61450/)

rharris19 11-04-2011 12:17 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1320423462

I would be excited to see the dyno plot myself once made public. I have toyed with the idea of using a tuned N/A VVT motor in my Exocet, but will be going the way of a turbo motor.

It always makes me happy to see the attention to detail that seems to be put into this car. It makes me even happier to see it done by a group of guys that you know are doing it themselves to race against some of the factory backed teams. Kudos.

Jeff_Ciesielski 11-04-2011 12:36 PM

The solid state relay system makes me wet. Super impressive car.

GeneSplicer 11-04-2011 02:52 PM

Those must be some pretty dam bright LEDs to house them behind the lens... same ones you had mounted on the hood last year?

ThePass 11-04-2011 03:18 PM

^ I believe they also mount a second pair of those LEDs in the bumper opening for a total of 4.

crashnscar 11-04-2011 03:28 PM


Originally Posted by ThePass (Post 792096)
^ I believe they also mount a second pair of those LEDs in the bumper opening for a total of 4.

Correct.

Reverant 11-04-2011 03:46 PM

Wow, that smartwire unit is really expensive. Unless someone uses all the channels it provides, it might be more economical to go with OTS solid state relays.

hustler 11-04-2011 04:04 PM


Originally Posted by ThePass (Post 792096)
^ I believe they also mount a second pair of those LEDs in the bumper opening for a total of 4.

I will mount your bumper opening.

TurboTim 11-04-2011 06:15 PM


Originally Posted by JasonC SBB (Post 792011)
I guess you should use VVT to limit topend power to the rules.

Yeah, this is what I was thinking. I guess we'll see eventually.

Very nice job Emilio.

miatamania 11-04-2011 06:33 PM

Damn. Nicely done guys. I've always wanted an obnoxiously orange miata.

Gryff 11-04-2011 07:03 PM

I need to change my pants now. Looks absolutely amazing Emilio! As always, best of luck out there!


Originally Posted by miatamania (Post 792177)
Damn. Nicely done guys. I've always wanted an obnoxiously orange miata.

1990 Miata: In pieces waiting on paint

Do it ******~! :jerkit:

bellwilliam 11-04-2011 10:42 PM


Originally Posted by AnnorexicRoadster (Post 792010)
I always thought modern day ABS was faster then not having ABS.

that's the key. there is nothing modern about the ABS unit in Crusher. that is probably a 15 years old design at best.

emilio700 11-05-2011 02:36 AM


Originally Posted by JasonC SBB (Post 792009)
Cool stuff!

What AFR's are you running?

12.8 through midrange, 13.0 on top. Cal is very finely tuned for economy.
Runs on CA91 pump gas.


Originally Posted by Reverant (Post 792108)
Wow, that smartwire unit is really expensive. Unless someone uses all the channels it provides, it might be more economical to go with OTS solid state relays.

The difference is that the Smartwire is fully programmable, values can be displayed on dash, logic circuits can be set up (turn off lights when cranking, turn off fuel pump if fire system triggers, etc). You want the defroster to trip the "fuse" at exactly 13.5amps? No problem. You want it to reset after exactly 4.5 seconds, you bet. You want it to attempt reset no more than 3 times, OK. You want to datalog all system voltages, amps, switch status, it'll do that too. Want to set a warning light on the IQ3 dash if the fuel pump draws more the 7.6 amps for more than 2.3 seconds, sure.

The stuff the Smartwire will do is endless. It ain't cheap but you are going into a cutting edge OEM realm of power control for even a home built project car.

timk 11-05-2011 05:50 AM

What is the matting in the driver's footwell? I need to get some of that as a bare floor is so freakin' slippery in the wet!

deano 11-05-2011 10:57 AM

Soooooo fired up to drive this car! Honored to be part of the the team with one of the BEST prepared enduro cars out there. I hope I can figure out what all those switches do... :)

Cheers,

Dean

JasonC SBB 11-05-2011 12:08 PM


Originally Posted by emilio700 (Post 792280)
12.8 through midrange, 13.0 on top. Cal is very finely tuned for economy.
Runs on CA91 pump gas.

What kind of EGT's you seeing at the end of the main straight?

Did you guys do anything like run the exhaust cam retarded to help control EGT?
Or use Inconel exhaust valves?

turbotyla 11-05-2011 02:52 PM

man that is a beast. What was done besides the intake to get the vvt to 148 whp. that seams like a very good power for a na bp motor.

high(er) comp pistons and tuning ? cams ?

bellwilliam 11-05-2011 03:00 PM


Originally Posted by saboteur (Post 792291)
What is the matting in the driver's footwell? I need to get some of that as a bare floor is so freakin' slippery in the wet!

that's a thermal mat. there are also some of that underneath the car also. but it also double as a friction pad.

you can get one of those stick on skateboard tape also.

billybobster 11-05-2011 08:08 PM


Originally Posted by bellwilliam (Post 792381)
that's a thermal mat. there are also some of that underneath the car also. but it also double as a friction pad.

What brand are you using? I've heat soak issues in the driver's footwell, not during track day sessions but on the multi-hour drive to/from the event.

emilio700 11-05-2011 09:58 PM


Originally Posted by saboteur (Post 792291)
What is the matting in the driver's footwell? I need to get some of that as a bare floor is so freakin' slippery in the wet!

The stuff in the floor is Koolmat. Still a bit slippery when wet but great in the dry.
The inside of the tunnel has Thermo-Tec adhesive backed barrier. Image here. Header and exhaust are wrapped to rear axle with DEI 2" header wrap. Car has almost no radiant heat inside. Putting a ton of thermal barriers on the cockpit side of the tunnel is a waste of time. Exhaust will heat all the sheet metal from the firewall to the rear bulkhead to 180° and radiate buckets of heat even if the little heel protector mat is saving your right foot. Keep the tub from getting hot in the first place and you don't need to go crazy in the interior.


Originally Posted by deano (Post 792323)
Soooooo fired up to drive this car! Honored to be part of the the team with one of the BEST prepared enduro cars out there. I hope I can figure out what all those switches do... :)

Cheers,

Dean

We're honored to have you on the team Dean. For those of you who don't know who Dean is, he's one of the fastest Miata drivers in the country. There isn't anyone faster around Thunderhill IMO. I feel like we have a superteam with all the talent we have gathered.


Originally Posted by JasonC SBB (Post 792346)
What kind of EGT's you seeing at the end of the main straight?

Did you guys do anything like run the exhaust cam retarded to help control EGT?
Or use Inconel exhaust valves?

Supertech SS valves and other measures. No EGT sensor which is an oversight on my part actually. We ran the motor ridiculously lean for quite a while in testing for. Oil, leakdown, compression and borescope all show no harm done. Experience has shown that our target AFR's are safe for a bone stock motor so we know we are good.


Originally Posted by turbotyla (Post 792380)
man that is a beast. What was done besides the intake to get the vvt to 148 whp. that seams like a very good power for a na bp motor.

high(er) comp pistons and tuning ? cams ?

Stock junkyard USDM VVT motor will make 148whp with I/H/E and ECU on pump gas. JDM 10.5:1 motor with square top closer to 160whp with same bolt-ons.

GAMO 11-05-2011 10:26 PM

What size wheels/tire widths?

I'm planning on going this type of NA next year before heading into the boosted world. Should be a nice jump up from a 94 ECU controlled 97 motor. Need to know if I should order some 15x8s or 15x9s, haha.


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