LacViet

I just finish the dyno today. The result is very similar to LudetypeSH.

max power= 230.1
max torque= 192.46

So with AEM CAI instead of Ice box, and thermoblock spacer, LudetypeSH's car has 2 more power and 5 more torque!

I'll post the graph later on tonight, but it looks almost exact the same as the one LudetypeSH posted. The air/fuel ratio is at 12 from the beginning up to around 5.2K rpm. It went down to 11 from 5.2K to 6.2K. Above 6.2k rpm, the air/fuel ratio is back up to 12. Don't really know what it means. Need to do more research tonight. Any thought on this air/fuel ratio thing?

LudetypeSH

Nice numbers....LacViet...how many pulls did you do? I wanted to do a 4th pull but the shop was closing. I also wanted to wait 30-45 minutes in between pulls so that my car could cool down. I might have been able to pull a little higher numers (approx. 1-5 whp) if my car was cooled down...according to the shop. Where did you end up dynoing your car? Thanks.

Here's another dyno sheet with my 2 highest runs on 1 graph:

TLsu

Yeah those numbers look good. The 2hp and 5tq difference is negligable.

fsttyms1

Nice #'s. That difference could be any thing from dyno type to weather.

LacViet

LudetypeSH: I had dyno at the same place you did: Dyno Extreme. I did 3 runs total with one right after another. The first two runs are almost identical with max power=224 and max torque=189. The last run is the highest of the three. I'm happy with the number!

Here is the dyno sheet with all three runs:


and the best run:

blk2001tlon19s

nice

LudetypeSH

Lac Viet...that's still a good number...your engines output is about 302bhp. I'm sure that's what Dyno Extreme told you. Did you see a Blue Supra there? If you did, that's my bro-in-law's car and he is getting ready to sell it after restoring it a bit. Only problem is that it is a automatic...I'd jump on it if it were a six speed.

I have to bring my car back to the shop that installed my Header and spacers....I hear what sounds to be an exhaust leak...hopefully it isn't. I need a second opinion though. The shop is down the street from Dyno Extreme and located on Dale and Katella. The shop is called Quiken Motorsports and they specialize in Honda/Acura. If you need any other stuff installed...I would recommend them.

duy

iTrader: (1)

How much did it cost?

LudetypeSH

I paid $65 for my dyno and the owner of the shop let mee do up to 4 pulls...but I only did 3 pulls.

LacViet

Duy: Are you gonna go to the meet? Haven't seen you at the meet for a while.

I paid the same price. With air/fuel ratio is another $15.

stick

a/f look pretty good. do u see that red dotted line, thats the line they try to aim for while tuning. altho u didnt get tuned, just some pulls, ur a/f look good considering just having bolt on. ur still a little rich. that red dotted line is stoic. u dont want to be above the red line which equals bad.

as for dyno #'s, definitely need to ask this dyno place for a dyno graph w/ zero SAE corrections. those are more meaningful.

LacViet

I have a few question: so if the a/f ratio at 13 is the optimal? which means that more air is needed to enter the engine?


Are you talking about the SAE smoothing? I can change that with the WinPEP 7.

stick

ill try and explain the best that i can because im no expert and far from it.

as for ur a/f ratio it may need more air and/or fuel. u need equal amounts of both if u want to make more power.

as for the SAE smoothing, u could change it ur self but the graph would remain the same.
the dyno guy must change that number for it to take effect on the graph.

snowman81

Nice #'s. That's almost exactly what my AFR looked like. Dropped down in the same spot and everything. I wonder if that has anything to do with VTEC. I don't think I am gonna go with the VAFC yet...maybe sometime down the road.
As for the SAE correction....what the heck does it mean. Mine said SAE:3

Excelerate

iTrader: (1)

Before VTEC is about to engage the ECU starts dumping extra fuel to compensate for the amount of hp about to be created. Once VTEC engages you are operating on a different lobe on the camshaft which is more aggressive than the other lobes. Therefore more air will be flowing in and therefore you need more gas to make more power. So basically the fact that the AFR dips is normal. You will rarely be able to eliminate that dip. And besides on this car there are virtually no gains to be had by playing with the AFR. It has been tried by other members. The Honda Map is perfect.

Phesto

what about that Apexi Neo AFR regulator??
AND HOW MUCH?? lol

duy

iTrader: (1)

Maybe...but my car is basically stock. So, there ain't much to show off.

snowman81

The Apexi Neo is the same as the VAFC II, just in a nicer package. That's the one I was looking into...they run around $350-$400.

Thanks for the info Josh...I don't think that I'll be picking up the VAFC, it's just not worth the money.
Side note, I may stop by this weekend to pick up some rotora rotors and pads for my 02 TL if you have them in stock. I'll check the website to see when you're open. Only if I have time though, I'll be doing quite a bit of running around. Otherwise, I'll be ordering them within the next couple weeks.

LacViet

I have a little time on my hand to play with the dynojet software, and I notice that if I change the SAE smoothing = 1, I gain just a little more power and torque; however, the graph looks little rougher. So, SAE smoothing is just a tool to make the graph looks better?
It also interesting that by changing different Correction factor such as: DIN, EEC, STD, JIS, or Uncorrected, the dyno graph shows either gain +3 horsepower (STD), or lost -15 horsepower (uncorrected). It's totally confusion. Anyway, it's just a tool to help us gauge the improvement of the new mod!

Here is the dyno with SAE smoothing = 1


and here is the original dyno with SAE smoothing = 5

stick

exactly, dynos are just a tool to gauge if the mods really add any HP.

uncorrected graph is what u really want to look at. of course, dyno shops will not do uncorrected since the numbers look less impressive.

the only truly way to gauge how much power u make is do some 0-60 runs and 1/4 mi runs to determine ur trap.

Lacviet, could u post ur uncorrected graph.?

cheezwerkz

just got my apexi afc neo install yesterday and will be gettin the car dyno on tues at xs engineering. so i will let u know how it go

LacViet

Hope your car makes close to 300 at the wheels!
btw, are you coming to the meet?

TLsu

How is his car going to make 300whp? SC, headers?

2003TL-S

I'm pretty sure he meant crank.....right????

LacViet

He had Comptech ice box, header, exhaust, and supercharge. Don't really remember he had pulleys or not.

LacViet

Per your request:

cheezwerkz

header exhaust intake supercharger high boost pulley

Phesto

i am looking for a good place in the bay area to get my apexi neo installed,any help ??

snowman81

I can't help you out with a place to install it but I am interested in seeing your before and after dynos. I'd like to see if there are much gains to be had and how much they lean out your AFR. Do you already have a before dyno with the AFR graph on it? Good luck with the install. I'd also be interested in about how much install and tuning will cost.

stRodda

iTrader: (1)

bump from the dead...


im really interested in seeing if there are any gains to be had by tuning and leaning out some. even if there isnt much power to be had... you could definetly get better mileage.

Excelerate

iTrader: (1)

There were a few members a couple years ago who installed and played around with the settings with the Apexi VAFC and they actually lost power. Honda had it right from the beginning so don't waste your money.

stRodda

iTrader: (1)

any chance the results are still around somewhere? im not doubting you, and im sure anything is possible... its just weird that "correcting" the afr would result in a loss of power.

Edward'TLS

For a highly factory tuned engine, the factory Honda air/fuel ratio map is really fully optimized (or already "correct" in your words). So any messing around with the AFR map values will only "uncorrect" the optimum setting and results only in reduced engine output.

stRodda

iTrader: (1)

wow... ok, thanks guys. ive never delt with v6 hondas before, always been around the high revving 4bangers. im used to running leaner, didnt know some n/a motors needed to run that rich.


but just ouf of curiousity... if someone does have a dyno that has been vafc tuned, i would like to see it. just wondering what kind of results came from changing the afr.

on a sidenote, guess i just saved myself almost $500, since i apparently wont be needing a vafc/pnp harness.