Ok, I finally had a chance to get my car dynoed today.I wasn't too happy though because I was supposed to have my S-AFC setup but the guy told me that the settings are not registering on their computer. He said something about it was resetting but I didn't really understand what he meant. I don't know what was wrong with it. So basically my S-AFC is not doing me any good right now. Oh well, that's another thread though... Anyway, here is my dyno sheet and I need to ask you guys to help me understand it specially the A/F readings. I would appreciate any comments too. My mods are in my sig...

 

the power is about what I would expect from 155k motor with the mods you have. Hard to justify spending so much money to get 150 horses isn't it?

 

Let me guess....You own a TII.....

 

Thats pretty good output for a 155K engine.

 

What's wrong with the SAFC?

 

I don't what's wrong with it.

 

Thats pretty good for an n/a. You still have plenty of room for future mods that should get you up there. Especially when you have your S-AFC tuned In accordingly.

 

that's my problem right now. how do i tune my S-AFC with this dyno sheet. I need some guidance.

 

I don't undertans?

Do you have problems with the SAFC?

 

what you really need is the RPM's.... so you can adjust it at that rpm.. you'll have to figure that out yourself. that speed in whatever gear.

I'm not sure the s-afc will help you much. I don't think you'd want to go much leaner. maybe after 65mph. but I'm not sure what the number should be for N/A's you need to go a bit richer at 50mph. I'm guessing that's at 3800rpm?

but that is one FLAT curve!!! any tourqe readings??

 

Dude dont listen to him Spdstr. Those numbers are awsome for an N/A. Stock whell horspower is 120 S4 to 125 S5 and you have 153. Your kicken most n/a *** on this forum. PPnos has 167 with a street port and I have seen alot of 130-40 something wheel horsepowers. Keep the mods coming.

 

Wow, I am really surprised with this reaction from you guys. I thought 150HP is kind of low with all my mods. I don't know how much more HP can I gain with a properly setup S-AFC. BTW, 6-port wasn't working properly when my car was dynoed today. I'll go again next month and see how much will I improve.

Scott, I noticed that too on my dyno sheet - it didn't have the torque reading and the RPM readings. Should I call them up and ask for it? Do you think they still have my record?

 

they won't have RPM readings. if they did it would have been on the sheet. if it's in MPH that means they were too dumb to figure out how to get an RPM reading on your engine

 

no, they do have it. they probably just missed to add it on the printout.

 

I dont think you need to lean out the fuel at all. It looks great. Just a tad rich on the top end is a good thing. Better than going lean. If you really wanna tune that top end, I guess you could pull that a/f ratio a tad above 13:1 from ~65mph on. Very small increment though. Nice runs man. I am gettin mine dyno'ed soon. I hope to see 140rwhp with the catback I have coming.

 

it doesnt look like you have that many mods... most of the stuff is suspension mods and stuff.. those are great numbers for what you got done.

 

You should not get down on your self, those are great numbers for what you have lets evaluate; Your motor stock produced 146 at the crank and all you have don’t is HI-6 ignition, S-AFC, Header/pre-silencer/cat back and K&N style intake, and electric fan. That sounds good to me and you have a couple of disadvantages going for you. If you want to see the big #’s the series 4 intake is not as aggressive as the series 5, your rotors have a lower compression ratio (compared to the series 5), and the BIG one is you are not ported. For having these disadvantages you are looking good on the dyno, but regardless of what the dyno says its all about how it feels to you. If you like it and are having fun with it then that is all that matters. If you have any questions about making more power e-mail me or PM me. Good job on your dyno and keep that NA pride alive!!!!

- Dana Osborn (Automotive Research and Development)

 

Sounds really good!!! So what else can I mod my car with to get it to 180 at least at the wheels. Oh yeah, I don't like porting my car. Will bigger inectors and fuel pump helps?

 

This is where I get confused. I don't know how to interpret thos ratio on the S-AFC. Can you help please.

 

Who did your dyno? They should have provided a side by side - RPM to RWHP. I hope you didn't spend much.

You really need to find a shop that does it all. I used to go to G-force, when they were in So. San Fran ($75/hr).

 

I went to ATP in Fremont at our RX-7 dyno day and BBQ yesterday. We paid $55 each with the wideband hooked up.

 

That's one purty hp curve. Now imagine if your 6ports were opened- that's good for at least another 15whp. I take it that you're running a true dual exhaust system since you mentioned presilencer(s).

 

I'll get it dynoed again next month and hoping that'll pick more HP. BTW, I'm not running a dual exhaust

 

I called the place today where I dynoed my car and asked them why my printout didn't have the Torque and RPM. The guy told me that the Dynojet didn't pick it up. I think this is the reason why we couldn't setup the AFC. Do you guys have any idea why this happened?

 

Your car is running out of this world lean before the secondaries open. Your AFR's should not be that high (18:1)...