Hit the dyno again....
#1
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Had an opportunity to hit the dyno again. Thought I would see what a bit more boost would get me. This is the same setup as before, but think I have a problem. The last time I hit 277 rwhp ( https://www.miataturbo.net/forum/t25700/ ). This time I ran 3# more boost on the same setup and the same number. First pull was 260, but it was extremely rich, we ended up with 277 after I leaned it out quite a bit. Seems to feel a bunch stronger, but the numbers don't lie. Any ideas about why this would be? Here's the video, enjoy.
Last edited by JayL; 11-18-2008 at 06:21 PM.
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Ah, that makes more sense.
Yeah, I dunno why your car isn't making more power, if indeed it is not. I got that same BOV for my 99'. Car is super clean. If I were rich, that's how my NB would look. Maybe college will pay off one day. As I'm sure you know, intake manifolds are all the rage these days. I'm awaiting the dyno plots, but a member here recently dyno'd his 99' w/ a stock intake manifold, then swapped it for a 99' manifold w/ gutted out vics chamber. And he made more power. I'll be doing this soon. You 01+ guys could do the same.
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264hp/262ftlbs
275hp/263ftlbs
Build Details
Motor yr/displacement: 95 1.8l
Head: stock 99
Intake manifold: stock 99
Exhaust manifold: AbsurdFlow Tubular
Exhaust size/style: Bellmouth 3" AbsurdFlow
FMIC core: 18x12x3
Turbo: GT2560R
Boost: 15psi
Still waiting for the dyno files but it was obvious that the stock intake is a restriction at those flow levels, NA 1.8 and NB 1.8. With the stock 99 intake mani the car hit a wall powerwise by 6k. With the gutted mani it kept climbing to redline.
Below are the 2 intakes in question. We swapped it at the dyno and ran the car again after retuning on the street.
#12
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Wow those pictures are pretty crazy haha. I was hoping you'd take them.
I don't even wanna know how long that took Paul to hack apart.
I worked on it for an hour and all I did was weld some holes closed and remove the last bit of internal EGR passage that Paul couldn't reach with his die grinder.
I don't even wanna know how long that took Paul to hack apart.
I worked on it for an hour and all I did was weld some holes closed and remove the last bit of internal EGR passage that Paul couldn't reach with his die grinder.
#14
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That's for sure the issue; different loads and rates of acceleration will produce different numbers. I would try to contact Dyno Dynamics and ask them, but it seems the rolling resistance value on each was different, therefore the final output was altered...my uneducated guess would estimate the final numbers should have been closer to 310HP.
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Tour de Franzia
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I thought I had to build some gay ******* circuit ****? If its just hooking up the shift-light, then I'll keep it. My **** would be together if I weren't the glue which held the virtue of the nation together.