Thought you all would be interested in the results of our dyno day today. Also had an E36 M3.

http://www.s2ki.com/forums/showthrea...threadid=38953

 

Hmmm....The best run the TL-S got was the second run. And it was only able to produce 201.7 HP! That is horrible! It lost 60 HP to the wheels!!! The other runs was 199 and 198 HP. You know...that's very very bad. I'm very very disapointed in the results.

 

*scratch head* Most stock TL-S dynos I've seen have been near the 208 range, some even below 200. This isn't that far off, plus the low-end torque is nearly 10 ft-lbs higher than most.

I'm not sure where the "very, very bad" comment is coming from. If you've seen different numbers for stock Type S's, I'd love to see them. Thanks!

 

Hmmm..I see. Well..I guess I'm not using to seeing a 60 HP loss to the wheels. But who knows. My friend said that was about right..it was about 25% powerloss to the wheels. and usually it's 20-25%. So Maybe I should be happy with the results! HEHE! How much HP does the 98-02 Accord V6 engine produce at the wheels?

Maybe it wasn't very very bad..sorry about that comment. I'm just not used to how much HP loss your supposed to have to the wheels. I guess 200 is good huh?!

 

*nod* I was surprised too, but it appears to be normal. The S2000's, with suposedly 20 less hp, had similar readings at the wheels. The shop owner said that 200whp from 260 at the crank isn't unexpected with an auto.

 

Ahhh...yeah...very true. Oh well..there are many things to bump the HP up on the TL-S anyway.

 

Hm... actually 200whp isn't too bad... cars lost roughly 20%-25% to auto tranny, and if you factor it in, 200whp is about right.....

Andy Kuo

 

from the dyno, it's clear that the Comptech headers will extend the flatness of the torque curve frm 5500 rpms to 6500 rpms (175 lbft).

Add a CAI, and you would gain 5-6 lbft all across.
Add the "Future" RES and you would gain 15-16 lbft all across.

With only those you get a torque curve of 200 lbft "flat" up 6500 rpms! That should better even the E36 M3.

Nice!

 

The TLS in question (mine) had a K & N filter with the resonator removed. I would like to see a chart of a completely stock car. There were some runs with a moded S2000 (MG Racing carbon fibre air box, A'muse Exhaust) and it gained absolutely 0 hp. Spent a ton of money w/no return. I wonder if I am losing hp without the resonator. hmmm?

 

I have a chart of a BONE STOCK dyno with my TL-S at 2000kms...unfortunately, photopoint seems to not be working so I can't post it
if anyone can host it, please email me...

 

I guess maybe you are losing HP.

Think about it. The stock setup, even it is more resitrictive, it will draw fresh air from the down below the engine compartment. A cool air is sucked. Now, you remove the resonator and the intake is picking up "hot" air, sucked directly from the Filter element, you could lose HP.

I would say if you are happy with no resonator, get a CAI pipe. I get the Injen and I like it. AEM is nice too.

Either would add some 5-6 HP to the wheels.

 

I doubt it is losing you power, maybe midrange torque... but even
then I doubt it. Leaving the resonator on does not bring in cold
air. Infact it comes right back into the engine compartment.
Removing the resonator is the only way to get fresh air. I put my
resonator on about a month a go just to change the way my car
sounded (and I was bored). I hated it... immediately felt a power
loss, especially in vtec range. Very next day I removed it again.
Butt dynos aren't very accurate... but this one seemed obvious to me.

 

At a dyno, what you get is the "power at the wheels" and it's calculated differently than the specs you read in car magazines. I know this from talking with the guys that tune my Miata. Not sure how the translation works though since I am so not technical. Anyone can explain...

 

These high output engines rarely benefit from aftermarket crap. They have already been quite highly tuned at the factory and short of cams and bigger throttle bodies (i.e. more air and fuel), you won't see lots of gains.

My old M5 usually only benefits from a chip but it is OBD I. Changes to the air intake and exhaust rarely if ever realize gains other than the weight savings on the exhaust. A dyno of a chipped M5 saw 280+hp to the rear wheels. Not bad for a 3.6 liter in 1990.

 

I can host your Dyno Chart. You can send it to me email (bhall01@attbi.com) and I'll post the link.

 

I was quite astonished to see how severely the TLS's torque curve dropped off after 5000rpm. It's a nearly 25% drop from there to 6800rpm. Compare that to the S2000 loosing 12% from 6500 to 9000rpm.

Makes sense, though, given the auto tranny and the typical driving style Honda had in mind. In any case, it makes talking peak numbers particularly difficult to interpret because of the engine's focus.

It's true that the peak torque can't be improved all that much - it's pretty well tuned as it is - it already has more crank torque than the NSX's 3.2. High-end torque, however, is severely lacking IMO. Not important for around-town driving, but will definitely have an effect with full-throttle, to-the-redline acceleration runs.

(Kinda makes me giddy thinking about what Honda has up their sleeve for the new, possibly 3.5L or even 4.0L NSX engine!)

All in all, for a four door luxury car, Honda did an awesome job.

 

sent
btw, I notice you have a GSX-R 1000 also...mines putting out 156.5 RWHP, have you dynoe'd yours?

 

No I havn't dynoed the Gixr. I'll be able to work on the dyno chart tonight. What have you done to your Gixr? Let's see 375 lbs. dry and nearly as much hp as the TLS, I wonder who wins 0 - 60 or 0 to anything? LOL!

 

well, so far I have got the K&N, a full Akrapovic exhaust, removed the set valve and actuator etc...pc3r, full qb carbon fibre body work, ram single sided swingarm made of magnesium, magnesium 5 spoke gold rims, carbon fibre gastank that's 11 pounds lighter than stock...

I'm about 20+ pounds lighter than stock, and am pushing about 14 more HP....

I have a race bike that has cams, headwork, porting and polishing done that's sitting around 173RWHP...

 

where did u get the cf gas tank?... is it safe?

 

got it from a guy I know in Kansas, his name is Charles and he owns Street and Track inport accessories...the tank got about $1000...it's amazing..I'll post pics if Photopoint ever comes back online

 

I wants to see da pics, please. Elistan asks why you didn't just buy a Works Ducati Super Bike, LOL? He and I work together.

 

Oh yea I got tagged with chores last night (wife) so I will post the Dyno chart I got from Astoboy tonight. I got my 4 year old a '84 Honda Z50 over the weekend and my wife didn't think to much of the idea so I am trying to be on my best behavior for a while!

 

1) When I removed the resonator, there was plenty of open space below the Air cleaner box for cool air to come in.
2) I measured the power both with and without resonator using a Vericom 2000 - it was really no different with, without, but the sond and throttle response were more to my liking
3) But I still have a loud hum can't get rid of

 

Here it is: Astroboy's Bone Stock TL-S Dyno run.

http://home.attbi.com/~bhall01/Acura...serun_dyno.jpg

 

Nice Dyno Astro. It look as good if not better than Mike's CL-S.

Now, Where is the Dyno for the CAI and headers..... ? I would expect some 235-238 HP to the wheels.

As headers will broaden the torque curve from 5500 rpm to 6500 rpm.

As CAI will add up to 6-8 HP everywhere....

As the MM would do 3X of a CAI

 

as soon as I get the car back from the stereo shop, I'll take it to the dyno and run it with my intake, headers and exhaust and we'll see what it pulls...

 

Oh! I must see the difference with the mods! OH yeah...do you have pics of your car Astroboy? I tried to find it by doing a search, but no avail. PM me. Thanks