[Caldera]

RRev Motorsports in PDX was having a charity dyno day today, so I took the Miata in. Based on the following chart I expected to see ~115 or so WHP, figuring I'd see a peak 5 or so whp over this I/H/E chart. http://www.flyinmiata.com/tech/dyno_runs/Dewaine_Norris_082099.pdf

Imagine my surprise when I beat it by twenty-three HP!

I hit 132.3 peak HP, and 110.2 peak tq.
Power peak was at about 6750, and is a 45 degree line up the chart. No dips, lulls or otherwise.
The tq crests 100lb/ft at 3400, and doesn't fall back under it until 6900!! RPM

The air/fuel failed to impress me though. All factory fuel management, 130k miles on the pump, etc. It stays at 15:1 until 4400RPM. After that it takes a gentle decline to 11:1 from 5900 to 7000. Time for better fuel management.

The charts are attached. Sorry for the crappy camera phone pics.

My engine Mods: (just the usual bolt-ons)
Racing Beat Intake | Racing Beat Header | Hollow catpipe | Fidanza flywheel | Unorthodox UDP | 1994 Exh-intake cam on redrilled stock gear. |

 

[frictionfighter]

thats pretty baller, 30 more hp and its my target hp.

 

[Caldera]

Strangely, the same can be said for me.

Megasquirt, ITBs, and I think a compression bump should get me close. I think there's serious gains to be made down low in fuel changes until i get around to the ITBs, and I hope that the optimized, shorter (read: non-existant) intake path'll help as well, even if I do lose the shiny bling of the RB elbow.

 

[FooSchnickens]

Heh, your AFR sounds a lot like mine before I found that vacuum leak :lol:

Good numbers there' man. Can't wait to drop some cams in mine and see how she does

Assuming I don't blow all my cash on JDM show pieces :lol:

 

[Bryan]

Good job dude

 

[Caldera]

Heh, your AFR sounds a lot like mine before I found that vacuum leak :lol:

Good numbers there' man. Can't wait to drop some cams in mine and see how she does

Assuming I don't blow all my cash on JDM show pieces :lol:

When the car's cold it acts like it has a vac leak, bad... I attribute that to my removal of the TB warming lines, with no coolant in the TB, it can't figure what to do so if i hit the brakes before the car's really warmed up it bounces idle from 2k to 1K and back. Idles kinda high too.

After a while (which it had been running ~30 mins at dyno time) the idle settles down and it loses that vaccum leak feeling. Wonder if i still have one though. Food for thought, definately.

 

[XCLR8TN]

Hmmm.. (subscribing so I don't have to search to find it later on)..... nice.

 

[Agent935]

Damn. I think I missed you by mere minutes. I Dynoed right after you and put down a mighty 107 with 96 mighty torques. Then on the way home my car started idle drooping all to hell and lost all power. I HOPE it's just the plug wires... I HOPE.

 

[FooSchnickens]

Heh, your AFR sounds a lot like mine before I found that vacuum leak :lol:

Good numbers there' man. Can't wait to drop some cams in mine and see how she does

Assuming I don't blow all my cash on JDM show pieces :lol:

When the car's cold it acts like it has a vac leak, bad... I attribute that to my removal of the TB warming lines, with no coolant in the TB, it can't figure what to do so if i hit the brakes before the car's really warmed up it bounces idle from 2k to 1K and back. Idles kinda high too.

After a while (which it had been running ~30 mins at dyno time) the idle settles down and it loses that vaccum leak feeling. Wonder if i still have one though. Food for thought, definately.

Sounds like it's time to sniff around with some carb cleaner

Mine needs to warm up too, or else it barks at people (Peter) who blip the throttle too much :lol:

 

[asianrice02]

what kind of dyno is this?

 

[albumleaf]

It's a dynojet.

 

[Caldera]

Wow. Holy hell. I did this originally way back in '06? I'd forgotten about this thread.

 

[1slow1g]

well i threw my na on the dyno after work the other day and got a bit of a suprise, 112whp 119tq.
only thing that i have done is an rx7 maf with no filter on it, the air fuels were 15.1 from 4k to red line.
then i hit it with a 50 shot wet and made 153hp and 162tq. car feels decent for such low power numbers.

 

[halfdemonpyro]

newb question..... what is an Exhintake?????? it sounds like a cheap 30 hp so im definatly down for that!

 

[DriftMyMX5]

You replace your intake cam with a stock exhaust cam. Only works on 1.8's....

 

[Nev]

newb question..... what is an Exhintake?????? it sounds like a cheap 30 hp so im definatly down for that!

its where you route your exhaust into your intake

 

[NoiseRacing]

newb question..... what is an Exhintake?????? it sounds like a cheap 30 hp so im definatly down for that!

its where you route your exhaust into your intake

lol DEI anyone

 

[Bryan]

newb question..... what is an Exhintake?????? it sounds like a cheap 30 hp so im definatly down for that!

If you don't know what it is, how the hell do you think it "sounds" cheap?

 

[ultimateforce]

newb question..... what is an Exhintake?????? it sounds like a cheap 30 hp so im definatly down for that!

Everything you could need to know.

http://tinyurl.com/dxd3nw