I have noticed a lot of CAI performance inquiries. Since I have not noticed anyone posting any before and after dynos, I suggest that we sticky this in the P&P forum.

Below are the links to the dyno pull images and the original threads from months ago. Enjoy!!

BASELINE:
http://img227.echo.cx/img227/5715/baselinedynob6vp.jpg
>>Original Thread: https://acurazine.com/forums/ramblings-12/fuckd-up-tidal-wave-kansas-112685/

AFTER AEM CAI + Comptech Catback:
http://img258.echo.cx/img258/5590/ttpdynob9ff.jpg
>>Original Thread: https://acurazine.com/forums/showthread.php?t=114656

 

those are some nice gains for just some simple boltons. did you ever dyno just the catback or just the CAI?

 

no. i purchased the parts all together and installed at once. if comptech numbers are correct, then most of the gains are from the CAI. comptech claims 7.5 HP from the catback.

dyno pulls can be very expensive. this is the reason why i had to go to different dyno shops. both shops were using DynoJet. The "After" shop had a dyno day when i went. they only charged $50 for 4 pulls with A/F ratio readings.

 

those are very impressive numbers...

 

I'll have to look into the AEM CAI

 

I love mine!

 

Just out of curiosity, why does the baseline dyno chart have mph for the x-axis?

 

my guess is as good as yours. the dyno shop that did the pulls did not allow me near the car. i just sat at their waiting area until it was done. i guess charge it to user error.

 

I don't see where VTEC engages on those runs. Did they start the dyno after the motor was VTEC engaged? There should be a noticeable jump in the charts when VTEC kicks in.

 

The charts also seem to indicate a 10% HP increase. Although I guess it is possible but 10% seems rather high for such mods.

 

Honda Tunning Magazine (http://hondatuningmagazine.com/tech/0505ht_tl/) where they featured a TL w/ an Injen CAI and a Comptech Exhaust and the car gained torque (and horsepower) accross the board. See

 

VTEC on the TL is not as dramatic as the I-VTEC as in the RSX.

 

Just for reference, i-vtec actually makes the vtec spike less prevelent because valve timing is adjusted continuously instead of just at one point. Also, note that a jump in power is BAD. A jump implies that switchover rpm is too high, not that the VTEC is better or anything like that.

However, it is probably true that the high rpm cam profile isnt as agressive as the 4 bangers. Probably a combination of the intended market and the fact that it is a SOHC motor.

 

those are great numbers.. now image with the comptech headers and pullies... if they are out... it should give you around 250+whp...easily.....oo and C/T supercharger... 310+whp... now that would be one bad as TL...

 

Ahhh I was wondering about that... just because they both use a DynoJet brand dynamometer doesn't mean they read the same. Calibration, model number, etc. all play a factor for sure. Questionable that you actually gained ~ 30whp.

 

im thinking about gettin a C/T exhaust too. can those of you who have one already tell me how much louder it is compared to the stock exhaust. thanks in advance

 

it's not much louder at all. at least on a 6 speed i can speak for i have a pic of mine in the peformance section

 

My Dyno w/ AEM CAI and Custom Exhaust...


228.6 lb-ft Torque (SAE)
250.7 Horsepower (SAE)

For large version click DYNO LARGE

 

WOW 250WHP IS AWESOME i need to get mine redone witht he comtech exhaust. the aem made that much of a difference was it pain in the but to install. and how low is the tube i am worries about water. I am know idiot i know not to drive threw lakes but i am worried

 

RSX-S = DOHC
TL = SOHC

 

Yes...I own both cars (2004 RSX-S and 2004 TL)

 

I had the AEM installed. I don't worry about water because I'm in So. Cali. If you notice, my car wasn't taken to redline, for what ever reason. I actually think there's more HP (as in the Honda Tuning Dyno, above) at the near redline. My dyno ends at 6,611 rpm. Next time I'm going to make sure it's taken to redline.

 

it's not even that great on the rsx. you should see it on the ITR's engine (b18c5) they have vtec and they have secondary butterflies that open. basically sounds like vtec is engaging twice :P

 

You guys need to read this. Alot of the Dyno's are a bunch of Bull. Just a little something to throw around.

Truth Behind Dynos 350Z Dyno(Part 1)

The Truth Behind Dynos (Part2)

 

if you are doing a before/after comparison you HAVE TO use the same dyno!!
duh!

 

whoa wow wtf?? wait I thought the 3gen tls were pulling 258 on the dynos.. stock. Maybe I am just confused, but arent the new numbers for the 06 Tl the accurate dyno readings for our tls?? I thought thats why it went from 270 to 258. Or are dyno chart readings not the same as what is advertised by companies. I know they inflate numbers, but when you first advertise something as 270 and then it does 200 something is wrong. PLZ help a dyno newb in need!!!

 

no responses eh?? well thats unfortunate...

 

i believe there is another thread for what you are talking about (https://acurazine.com/forums/dating-relationships-14/what-hell-does-mean-120294/).

secondly, the HP rating is the same. it all depends on the system you are using. The new 2006 HP rating is SAE. and remember, car manufacturers do not measure HP from the wheels. they measure from the crank.

 

Dynos are all well and good, and the numbers are purely for bragging rights, but the numbers alone dont make the car.
It doesnt matter if your going in a straight line, or turning left and right, its who gets to the finish line first. My non-vtec Teg is set up for the twisties and I can usually out run most of the more powerful cars I come across. My TL will be set up the same way, good power, even better handling.
The power is all well and good, but if you cant put it to good use, your just spinning your wheels. (pun, lol)

 

Not only that, the before #'s are crap unless a wind fan simulates wind speed because the oem CAI is meant to work with a frontal wind !!!

 

Interesting reading

 

The difference in the number of hp is merely the number alone. The actual amount of power the engine is creating stays the same. The only difference is how the horsepower is calculated mathematically.

 

i am in your area pm me i think i am going to the track next week to catch the 13' sec 1/4. i just put on the 17's on for the winter should be no problem. You should come road racing next year. We have another girl who comes with us she has a Rx7

 

Dynoing is useful.

A 3400 lb car dynoing 215fwhp is probably a low to mid 14 second car. A car hitting 250fwhp is a high 13 second car, maybe a little better.

My 98 Formula has dynoed anywhere from 680-754rwhp, and has run 9.4@143mph... I think dynoing has been quite useful.

 

That would normally be the case on a RWD cars, but FWD tend to have more trouble w/ wheel hop and traction. With better tires (street slicks) those numbers might be achieved.

I'm really surprised by how much power is lost through the drivetrain. Honda has been pretty good @ keeping it around 15%, but the first dyno shows a 20% loss. The Honda Tuning and GoBig dyno's aren't too bad @ 17%.

I was just wondering what transmission you guys have? I want to see the differences in drivetrain loss between the 6MT and the 5AT.

Also, if anyone has some free time, I would like to strap my car and someone w/ a 6MT transmission to a dyno to see what the baseline runs would look like. I have a friend that owns a shop w/ a dyno in La Mirada that would let us get a baseline runs in. I would just need someone willing to spare 15-30 minutes of their time in the Southern California area.

PM me if you're interested

 

This past weekend i had the chance to run my TL on the same dyno as the first run(about 1 year ago). 5AT model.

2004: ~20,000 miles on the odometer. Injen CAI, Comptech Catback. 202 to the wheels.

2005 ~50,000 miles on the odometer. Injen CAI, Custom HKS single outlet exhaust, Sunauto hypervoltage/ground kit. 212 to the wheels.

A 350z with CAI and greddy exhaust put down 216 on the same dyno.

It sure as hell must be nice to put down 250 to the wheels.

 

Well my manual did 233.9whp and i have gone 14.0 flat just about on 19's never got a chance to go back with the 17's i will say the cltuch sucks we really need someone to make a hp clutch for this because the stock one slips way to easy when hot. i spoke to rps and they said they are stoping production on that right now. that hurt because i do not want a factory clutch back in there. not to mention the cost factor and the labor

 

did you check with comptech? i think the CL clutch will match the 3G TL. i think it is the same clutch they used on the thunderhill TL.

 

I need to check i did remember they did a cltuch for that car. that would be great id they did but i need to find out how much clamping power it has over stock. thanks for the input

 

A few people with Comptech clutches have had problems. They re-use the stock pressure plate and it has been known to break under hard use. The stock clutch in the 2nd Gen CL has held up fine with well over 300whp. No need to upgrade the clutch on your N/A 3rd Gen TL's guys/girls.