Going to dyno on Thursday, HP guesses?

[AJ_RDR_Civic]

I'm asking on some other forums and figure why not ask here especially since my car falls right into SB class for this club..

Earlier in the year I won an hour of free dyno time with a local shop from the SCCA Washington D.C. Region AutoX club. I'm finally going to put it to use and get some numbers from my car. Anyone care to make some guesses? I'll give you a nice hairy, dirty, sticky, moldy cookie if you're right! lol

Engine info:
Original D16Z6 with 210k miles (Manual trans), runs great.
AEM Short Ram Intake
DC Sports 4-2-1 ceramic header
Magnaflow 2.25" cat-back exhaust

If my research is correct, these motors stock put out around 105whp. With the higher mileage, abuse and the minor mods I'll make a somewhat conservative guess that it'll make 110whp. I think I'd be happy with that. Anything under that and I'll definitely end up rebuilding the motor this winter to original stock specs and new parts.

I've come up with an average with what everyone's been saying(I'm asking outside of this forum too) and the average is 103.7whp so far.

I'm still staying confident in my motor. A buddy of mine that has a national competitive hatch Si with the same motor/mods but rebuilt and ECU tune made 125whp with 10k miles on it. He's also said he's seen other similar motor/mod cars with ~200k miles go as high as 114whp. A fellow moderator on another forum said he's always seen stock D16's pull around 105whp. I'm reeeally hoping mine's kinda up there(not 115whp+ but still high for what it is), it does feel real good when I'm racing but only the dyno will tell...

Now I don't know anything about dyno's but a buddy of mine said the dyno I'm running on is a Dyno Dynamics which he calls, and I quote, "the heartbreaker" lol. He actually guessed I'll make 96whp/78wtq on it. Don't know if that dyno will change any of your opinions.

[03threefiftyz]

I'll guess in the 105-110whp area. Uncorrected dyno dynamics tend to read about 7-10% less than a dynojet. My car makes 260whp on a dynodynamics (uncorrected) and 282whp on a dynojet SAE for comparison.

[D_Eclipse9916]

I'll guess in the 105-110whp area. Uncorrected dyno dynamics tend to read about 7-10% less than a dynojet. My car makes 260whp on a dynodynamics (uncorrected) and 282whp on a dynojet SAE for comparison.

Lol is it PTuning you got the free session from? I ran mine on the dyno dynamics and made 223WHP, then after found out it wasnt NASA legal, so I need to get dynoed again this time on a legal dyno. Kinda scared what ill put down, but I know im down on power simply from videos on track with other m3s catching me hard on the second half of the straight.

Im guessing on the heartbreaker dyno 101.6whp.

[AJ_RDR_Civic]

Nah I got the dyno time from York Automotive Inc in Mt. Airy.

[david.valeri]

Nah I got the dyno time from York Automotive Inc in Mt. Airy.

So now I have to deal with the fact that you kick my butt with street tires and less horsepower.

For the record, my Miata put down 105 on Ed York's dyno in mid November.

[AJ_RDR_Civic]

Now can you see why I made a big fuss about allowing the little sohc v-takks in SB? Fairly low hp and I'm sure I'll make even less tq

It sounds like a freshly built prepped SCCA ST motor can make around 125whp. Since SB is technically open to anything but swaps and boost, in theory I could make a significant amount more HP doing an all out motor build. But, I'm looking to stay within ST specs so don't worry about that. Plus, I'm sure a well built Miata can make a decent amount of power and more tq than a civic. Not that it really makes a big difference on the small lots. Tire still > than power...

[FredK]

Tire pressure and temp will make a difference too. I'm guessing 1 hp more than my Miata. What time are you going?
Fred

[AJ_RDR_Civic]

Tire pressure and temp will make a difference too. I'm guessing 1 hp more than my Miata. What time are you going?
Fred

3pm tomorrow. Why? You down for a dyno race? I wonder if I could get them to dyno another car too...I mean I don't think getting numbers for my car will really take an hour since I'm not tuning anything...

[FredK]

They like Miatas, I'll do it if they'll let us. I'll give them a free alignment @ Andrewtech.(kidding)

[AJ_RDR_Civic]

They like Miatas, I'll do it if they'll let us. I'll give them a free alignment @ Andrewtech.(kidding)

If you're serious I'll call them tomorrow morning and see if they'll let me use 2 cars for the dyno time. I can call you and let you know what they say, I still have your number unless you changed it recently..

[03threefiftyz]

They like Miatas, I'll do it if they'll let us. I'll give them a free alignment @ Andrewtech.(kidding)

You sure you remember how to put the top up on the Miata? A bit of chilly drive with it down

[flohtingPoint]

You didn't put an option for my pick AJ =P I thinking 85 whp.

If you want to do it Friday, I can bring the MR2 (if they have time that day, I'll throw down for my dyno time) and you, Fred and I can battle it out for the lowest hp.

[AJ_RDR_Civic]

You didn't put an option for my pick AJ =P I thinking 85 whp.

If you want to do it Friday, I can bring the MR2 (if they have time that day, I'll throw down for my dyno time) and you, Fred and I can battle it out for the lowest hp.

haha well I didn't even think of running 2 cars until now. I set up an appointment with them for tomorrow at 3 which works best for me. Lowest HP war would be fun though!

[flohtingPoint]

You didn't put an option for my pick AJ =P I thinking 85 whp.

If you want to do it Friday, I can bring the MR2 (if they have time that day, I'll throw down for my dyno time) and you, Fred and I can battle it out for the lowest hp.

haha well I didn't even think of running 2 cars until now. I set up an appointment with them for tomorrow at 3 which works best for me. Lowest HP war would be fun though!

Maybe I'll take the MR2 to them later in the year. I think it'd be an all out slugwar though, definitely. The MR2 is VERY lethargic. I think Fred's car would would be the highest and then it'd come down to ours. I think my torque would be higher but your hp would be above mine.

[AJ_RDR_Civic]

haha yeah I got you all beat on tq!

[AJ_RDR_Civic]

Results are in!




93whp @ 6400-6800rpm and 79wtq @ 5800.

http://www.youtube.com/watch?v=DYucQ0t2NcI

Atleast 12-15whp under what it should be making, atleast from this dyno's results. My buddy who's ran his mcoupe on this dyno knows what the real power output is and said he'd do the math on it for me. Still though, not making the power it should. No real surprise. So now my research will continue on for either a new motor or rebuild..

Oh and just because it just came in today, my new battery since my old one died.


Old one


Not as light but half the price of the old one and a better CCA rating. Works for me lol.

[FredK]

That's pathetic! Now I really want to know what the Miata has.

[AJ_RDR_Civic]

haha well I'm sure it'd make more than me atleast

I need more stickers so I can haz more power....