Why, both the '99 points and dyno reclass cars are TTE/PTE (no star)?

And I forgot to measure actual w/p above, instead of adjusted. It really is just a little better for the points car than I originally calculated.

2015
Points - 2400 lbs @ 145 hp = 16.557 actual, w/ weight and tire (205) adjustment 16.507
Dyno Reclass - 2390 lbs @ 130 hp = 18.38

2016 -
Points - 2410 lbs @ 146 hp = 16.506, no adjustment weight = tire (205)
Dyno Reclass - 2415 lbs @ 129 hp = 18.72

Change from 2015 to 2016 -
Points 16.557 - 16.506 = .051
Dyno Reclass 18.38 - 18.72 = -.34
Total change .051 + .34 = .391 ~ 2.3%

So now the points car has 2.214 w/p advantage ~ 13.4%; instead of 1.82 w/p ~ 11.0%

But this is all just a math exercise, the real question is:
How much money will it take to reach 146hp using only 9 points?

 

Are you saying I shouldn't build a boosted motor with curves like this, to comply with the new average hp rules coming in 2017? (peak 165whp @4k rpm, calculated average hp of ~135whp, useable whp across 2k rpm range of 160whp)

 

Average hp rule.. Where have I seen that before?

(couldn't resist)


+1 intake $70
+3 ECU $1300
+3 exhaust $400

E85 needed. $4000-7500 for blueprinted longblock, depending on how much high rev protection you want. Or zero if you have a healthy OEM engine and plan to keep revs below 7400. Might have trouble reaching power cap with stock crate motor though.

Only now the intake manifold is free since you're doing it with an NB1 instead of swapping in an NB2.

/threadjack

 

That is not an accurate comparison. You need to compare a car dyno reclassed with a PTE* base class.

PTE* used to be 17.3lbs/HP with a 1994 chassis and now for 2016 it is 17.6lbs/HP. So 17.6 on dyno reclass versus 16.5 on points build.

 

Oops, did I fail to preference the analysis with "For a '99"?
I was only looking at Points car vs. Pre-approved Dyno Reclass in Appendix C, for the car I currently own; and how the 2016 rules changed from the 2015 rules.

It would be a big task to analyse all Miata models for points vs dyno reclass, both Pre-approved in Appendix C and the individual reclasses, for both 2016 and 2015.

 

You're missing the point I'm making. Ignore the model year if you want, even though a '94 and '99 dyno reclass are almost the same. When you build a 99 points car you are going to chew up at least 7 points on the engine mods section for power. Since dyno reclass has no engine mod points taken, you get to spend that 7 points on a PTE* base class instead.

Comparing a PTE base class points car to a PTE base class dyno reclassed car is not an even comparison.

 

yep.

tl;dr- PTE* gets you more power per weight than PTE, and that's the comparison that should be made.

No one dyno reclasses to a no-asterisk base class. Or at least they shouldn't. The power advantage is worth more in lap times than basically any other mod except maybe being on edge of running a significantly stickier tire.

 

******* added 90# to my 2001 dyno reclass.... gotta kick that dead horse.

17.96:1

 

90lbs?! Damn.....almost close to TTF ratio :-/. Doesn't make much sense.

 

HAHAHAHAHAHAHA, no.

My reclass last year was 117whp at 2460. This year? 117whp at 2570lb. Thats going from a 21.02 p/w ratio to a 21.96 p/w ratio. Meanwhile, my competition at 2630-2675 has anywhere from 128-135whp.

It doesnt matter how good my setup is, or how stellar I drive the car, or how well I manage traffic, I was barely able to compete previously, and now, after taking an almost 2 whole number hit in power to weight ratio?

Guess I will build that STL motor after all.

 

Exact same for me. I'm now 143whp at 2570 pounds. ****. I don't even have a built motor with a flat hp curve or anything.

 

I really need to get my car on a dynojet. Safe to say if it puts down 135rwhp on a mustang it will do 140+ on a dynojet? ****, it might do 160+rwhp on that crazy dyno they roll out to nationals.....

 

Honestly Mustang dynos can be manipulated easily to read as high or as low as you want. You have to trust the operator who sets up and runs it, maybe see if there are other customers that have done back to back runs on that particular dyno and a dynojet on the same day.

And yeah, take two dice and give them a roll, that's about the best way try and guess how much variance you will have on the MCE mobile dyno.

 

Have you guys already requested new reclasses or is he sending out updates with the +90lb? All of my reclasses are from 2014 so I have to request a new one no matter what. Am I seeing this right that cars with 2015 reclasses are going to have a 90lb advantage?

 

No. It says in the rule book that any cars that have a change in their base class or base weight listing need a new reclass. Every single Miata in the list had a change made, so every single Miata dyno reclass with a date before the 2016 rules release is now invalid and you need to request a new one.

 

Yep, you're right. I forgot about this line. Thanks.

 

Wrong thread I know, but has anyone requested a 2016 D reclass yet?

 

Yeah. 143whp at 2220lbs for D or 2180 for D*.

 

Jeff my D reclass is D 2180/140

I haven't bothered getting an E reclass.

 

1.8L non-vvt NA?