I finally got my car dyno tuned and I wanted to get feedback from some pros about the chart. Here is what I have first:

1995 Honda Accord EX 5-Speed
Stillen FPR set to about 48 psi
AEM CAI
V-AFC
HKS Super Drager Exhaust
2 degree timing retard
NGK #7 plugs
65 shot ZEX (35 nitrous pill and 34 fuel pill)

The red graph is the car tuned with the VAFC and the blue is with the nitrous. I wanted HP vs. A/F because I wanted to make sure that i was not running lean. I noticed that the car was running a little lean on spray at the higher RPM's so I am going to change out the fuel pill. I am not sure if I should run a 36 pill or a 32 pill because the 75 shot on the zex uses a 32 pill and the 55 shot uses a 36. Initially, I thought that I would UP the pill to a 36, but it seems to me that if you were running a 75 shot you would want MORE fuel. According to the directions though, it says use a 32 pill????? Which one should I use to add more fuel to the system?

Anyway - here is the graph:



I made 182 hp with 700 psi on the bottle and running a little lean, so with a full warm bottle, a bigger fuel jet, and maybe a pump I would make a little more hp.

suggestions/comments??

Thanks.

 

also, what is the ideal A/F ratio on a dyno graph like this? It looks like on spray it's around 14, but what should it be?

Thanks.

 

here is my car if you want to see it:

 

Where is the torque? A little lean?

 

I'm not too impressed w/ their tuning capabilities (through what I've experienced) but Bryce is very nice and helpful. Nice car BTW

 

yeah - Bryce is a nice guy...I'm not too sure how well he tuned it either, that is why I posted up the graph. I wasn't concerned with torque, I wanted to make sure I wasn't running too lean. I don't understand how to read the a/f on this graph becasue this is my first dyno ever. please explain what a rich number would be and what lean would be...like, rich is like 10 right? so 15 would be lean as hell???? tell me what my chart should be telling me.

thanks.

 

Ahh - 12 is stoich...

ok...so 15 is lean and 10 is rich...got it.

wow - that means my graph sucks ***.

what needs to be done??? On my WOT settings on my VAFC the lower rpms are set negative and the higher rpms are set to 0. does this seem backwards to anyone else but me?

ugh...I'm confused.

 

Also, I figured out that I actually need to run a SMALLER jet on the fuel to get MORE fuel to the engine...How confusing is that ****? lol....

I'm changing it to a 32 pill and hopefully that will help.

someone tell me what else I need to do. thanks.

 

could u use the AFC to tune your motor WHEN your running nitrous?? or can you only tune it without it?

 

nice whip

 

Your torque curve is so much more important than your hp. It will really show how your car would accelerate vs. other cars. You want torque, not hp even tho they are related.

art

 

I'll call Bryce and have him e-mail me the graph with torque. Shouldn't my a/f graph be smoother? what's up with the up and down thing at mid RPMs?

later

 

You can tune the VAFC however you want, but when I run NA (most of the time) it would run rich as hell. You are supposed to tune it NA and then setup your nitrous correctly. That's what I'm trying to do. If I can get it all tuned good (the most important thing for making power in my opinion) it should be a haus.