I actually lost my undertray somehow . I know its super bad for cooling but the car never gets hot, and the splitter takes place of the undertray when I'm on track soooo. I should be good I think.

 

It's worth putting the under tray back on. They're surprisingly cheap at the dealer (or at least, they were the last time I replaced mine). I think it's because they get mangled so often that they sell a lot.

--Ian

 

your probably right. Ill see how much the dealer wants for some plastic.

 

The NA one is $68 + $10 shipping or something from Priority Mazda. I was honestly surprised by how cheap it was, and Tommy had them in stock.

 

I challenge you to post a link for an NB one at that price + shipping point.

Also

Alternative to undertray is to extend the splitter back as far as the front suspension pickup points. It should help a great deal compared to no tray at all.

 

The splitter attaches to the subframe near the oil pan. I will need a undertray for street duty apparently.

 

$46.31 plus $11 UPS ground shipping from Mazdaspeed Motorsports Development. That's for a 99.

MSRP on it is only $77.

--Ian

 

lol. I'd happily give them $57.31 for a new undertray, but MMD won't take my money.

Maybe they'll finally accept me once I send pictures of the car with numbers on the doors upside down and stuffed into a tire wall at Laguna. Because that's much more likely to happen before they accept me for membership.

 

Have you called them? AFAICT, they check their email about once every couple years.

--Ian

 

Hah. The next time I do a track ...thing I'll try to rent a transponder and show the world how terrible I am, then maybe they'll love me.

 

Have you considered the LRB aluminum undertray? Btw it's me David.

 

Hi David! the LRB is nice, but I don't think I want to spend that much on a street undergrad. The oem one should do the trick.

 

Well thats weird, there throttle plate is returning all the way closed, but the RPMs stay corresponding to the throttle position. IACV?

 

Here it is.

 

Quick thread diversion. Im currently installing the 6pt harness I got forever ago and am slightly confused on where to put the ASM holes in the floor. The instructions say 20* rearward of the hole in the seat but I have no way to measure 20*. So, how did you guys do it?

 

I took it to Tony at TC Design and let a pro worry about it.

I don't think the precise angle is all that critical, you can just eyeball it. If you want to overthink it, measure the distance between the seat and the floor and do a little math. It's been a while since I took trig (uh, like almost 30 years), but IIRC tan( 20 ) = horizontal distance / vertical distance.

--Ian

 

Trigonometry has change a lot since the 1800's Ian. Thats not how the kids are doing it today.

 

Im definitely overthinking this. But I also want it to pass tech if I ever need to.

HAHAHAH! I was taught SOHCAHTOA. But I'm too lazy to do math so ill just wait till its a last resort.

 

No tech will ever look at the angle of your harness

 

Not even for sectioned races?