I had three runs here's the turnout:

Run #1: Max Power= 258.0rwHP Max Torque= 286.9

Run #2: Max Power= 275.5rwHP Max Torque= 297.0

Run #3: Max Power= 289.5rwHP Max Torque= 302.7

Does that sound about right with a Hotcam Kit and Borla?

Also how much HP is lost through the drivetrain with an Automatic? I was thinking is was around 20%, if so calculated FWHP would be 347.4 HP and 363.24 Torque. Is this accurate?

 

Does your car have headers? If so you have some problems. If not get some headers on there. Most guys with headers, cat back, and CAI are close to what you put down.

 

20% is close i heard it was 22%

 

No headers, still have the stock manifolds on....Does any body know the exact % of loss in an automatic drivetrain??? 22% sounds good, I just wanna be sure...?

Plan on getting JetHot Long Tubes

By the way, what's the best thing to do to improve the drivetrain to improve my rwHP? Torque converter?

 

Hmmm, it's hard to say if it's low are not because you don't have a better intake and headers. I put down 264rwhp/294rwtq with just cai and cutout. It looks like you're only gaining about 30rwhp with the hotcam. I bet it will scream with headers!

Dan

 

Seems a little low actually...... I'm running at 275 rwhp and 315 rwtq. Underdrive pulley, MSD, drop-in K+N, and flowmaster muffler only.

I'd say that headers, cat-back, cai, and maybe even a 52mm TB would kick that car in the pants!

Bob

 

I have a borla catback... I don't have a CAI because I just got my new 98+ SS Hood and don't have the $$$ yet for some bolt-ons... Next are long tube headers, msd, airfoil, CAI, shift kit and pullies. I was way disappointed with the first run but it gradually got better. Maybe I could've done better with more runs.

How efficient would a 52TB be? Does someone know the exact % of drivetrain loss through automatics and manuals? Thanks guys for all your comments, I love to read what your opinions are whether they're good or bad, just let me know please!

 

There is no exact figure because even 2 cars with the same equipment can have different numbers. This is due to machining tolerances and parisitic losses. From all I've read, 20% is the normal average estimate.

As far as a CAI, make your own. Don't pay those greedy ba@#$%ds $200.00 for something you can make for $40.00. I made mine from oversized exhaust pipe and a K&N cone filter. Piece of cake once you get the bend put it in it.

Don't get discouraged and keep at it slow but sure. While your at it let's hope the gas prices start to come down so all this hopping up we do won't break our wallets.

 

Dynos are different, so it's hard to compare two different cars that dynoed on two different dynos.

IMO, those are pretty good numbers, with headers and CAI, you'll probably be around 330rwhp, maybe more.

But I'm trying to figure out why there's a 30rwhp difference between the first and last pulls Where you tuning the car or something?

And the general rule on parasitic loss is, manual: about 15% and an auto: about 20%. There is no exact percent, even for the same tranny.

 

Here is the dyno of someone else with hotcam and manifolds.
http://hcao.home.texas.net/hotcamgain.html

Here is his website incase you want to look at the rest of his mod list. http://hcao.home.texas.net/
On his mod list there it says he has headers but at the top of his dyno it says he has stock manifolds on for the dyno run.

 

Well I was suprised too, I think it had to do with the guy who was in my car , so might've been a little better than what I got.

The last RUN was done in 3rd gear (D). I don't think the guy dynoed much, well atleast camaros. It was done at a ricer shop with a company who is new to dyno'in. What do ya think?

Also I was wondering what gear would be best to dyno the car in, D or OD? Just curious...

 

Paul, you want to dyno with a 1:1 ratio, which is 3rd gear in an A4.

So he did the first two pulls in OD?

Don't go back there, because that guy doesn't really know what he's doing. Every dyno I've been to knows...A4: 3rd gear, M6: 4th gear.

 

Thanks 96SFLZ, I appreciate it. Unfortunately that's the only dynometer within Toledo, the next closest dyno is in Findlay @ Nu-Tel, but that's about a 45 minute drive, when this one is only on the other side of town. They just got this dyno so I think they just need more experience in dyno'in.

But man was is cool hearing my !CAT borla screaming @ 140 mph!

Anyways---So would 3rd be the gear I launch in when at the quarter mile?

Oh yeah, I'm unsure what gear he was in when he did the first two...I wish I had a scanner I would show you my paper I got...

 

Paul, I don't think you can start out in third...pretty sure you'd need a manual valve-body to do that.

You want to start in first gear anyway so just put the car in D and let it do the shifting for you, 1-2-3.

 

If its not tuned and the car is on stock manifold, then its about what can be expected.