I will have a dyno to post on March 8th. I am getting my car tuned at Carolina Auto Masters. Jeff said that I would probably be around 360 rwhp. I am hoping for more but, my wife is pregnant and I can't spend any more money on the car until after the baby is born.

 

dyno numbers dont matter on an A4 that is probably why you dont see many people posting them

 

Dyno #`s might not matter but assuming you have a setup car you will alwasy go faster with more power. I go alot faster now than I did when i had say 366rwhp . They are usefull to measure gains from mods and to compare to others setups.

 

A4's have a lot of drive train loss. People are into peak numbers, I am into 1/4 mile slips... I am pleased with my dyno numbers, since I have added Kook's headers and 3" Y pipe. My biggest restriction when I dynoed was my FLP Y pipe. JFM gained 16rwhp when he dropped his. That alone would put me around 475 not counting any other gains from the kook's. Once my AS 80mmTB and ported intake go on and the addition of the T-Rex cam which will be here tomorrow, I am hoping to be right around 500rwhp and this is all through a Moser 12 bolt w/ 4.11's and a 4400 stall...

 

My '03 set up was a set of Cartek Stage 2x ls1 heads w/ cartek cam, qtp headers and an ASP pully. I dyno'd 427rwho 395 tq, but because of a rev limiter bounce and my near 4000 lb convertible, I was only running 11.90's

 

I had 400rwhp and 508 rwtq unlocked out of my old setup.

 

Dood you loose 40 hp but unlocking your converter? That seems like alot. I thought the yanks only lost like 10-15 rwhp

BTW great #`s

 

I thought 40 horse was alot too. I acually think its alot bigger than a 3800. It seems much looser more like the 4400's that I've ridden in.

 

My friend has a Yank 4400 and only looses 15 hp . Ya might want to call yank about that. It seems really excessive. Even my old TCS converter only lost 28 hp and we know that was a piece O ****.

 

I already called them and Mike said it sounds like a 3-4 clutchpack slipping. I have my doubts. Why would the tranny slip with the converter unlocked but not slip with it locked up? Since my engine is out, I went ahead and had my tranny beefed up. We'll see what it does when its back together. I'll be pissed if I have to pull the tranny back out to send the converter back.

 

Dynoed 412rwhp and 483tq,this was before TR cam,LS6 intake,verter,and on a 125 shot,im steping up to a 150

 

So everyone is dyno'ing locked up? Odd.

I would like to ask you guys, since you stall (flash/brake) your verter, when you read a dyno thats locked or unlocked, where do you figure your torque is.

launching your unlocked, the STR builds the massive torque, but you may not always launch at the rpm the dyno operator does, and the gear is obviously different.

So call me dumb, but How exactly do you read an unlocked dyno?

Is it right to say that even though you may dyno 481wft/lbs @ 2500 (like my dyno) its not likely ever to lay down that much, since a full flash (also not likely on nittos) will hit 3800? But then i ask when i brake stand the car at launch say at 1800, then it doesn't flash but hits say 3000 on launch, some of the TORQUE is lost since you are not stabbing it?

I'm a little lost here. As far as i can tell dyno's unlocked or locked are both pretty useless since most people will never do either, from a stop, in 3rd gear.

Are we just hoping to plant our shift exntenions back into peak torque or would it be better to analyze the dyno for peak WHP ?

maybe im not making any sense too early after a friday. That is why i asked for unlocked/locked dyno's. I'm trying to figure out based on dyno #'s (mine) where the best launch, and each successive shift would be. Obviously ive got little control of the shifts (have to get the tuner to edit them) but the launch part is what im trying to figure out.

Seems like A4 dyno's hardly ever represent a real world scenario? locked and unlocked

You wont be at 2000rpm's in 3rd at WOT ever locked up, nor would you be at 2000rpm's in 3rd at wot unlocked? (speaking 3500 stall). So basically does that mean my peak tq unlocked #'s are just b/s since i'll never see that?

 

well.... not bad, MSD plug wires, NGK plugs, flowtech cutout and K & N FIPK were added and redynoed. orignally was 307 / 324

with the few new mods added above am now at
330.9 / 344.5 (SAE corrected)

I have to say I am pleased with the results

 

I only dyno unlocked. Best to date is 404/424.

 

I'd be interested in seeing a full list of mods and a graph on your setup, those numbers are impressive.

TIA

 

i still wonder why folks dyno locked up, do you launch locked up with a switch or something? is that faster?

 

well the only reason i would want to dyno locked & unlocked would be to tell how efficent the converter is, but for factual numbers i have only dynoed unlocked, i dont run a lockup switch at the track or anything, so that numbers are really pointless for me.

 

Here is an unlocked dyno with a PY3600E and a race built trans -- I had a failing 4l65e rear planetary and some toasted 3rd gear clutches during this dyno and didn't know it, two weeks later I broke the rear planteary on the way home

Dyno was unlocked and I was only running 25.5 degrees of timing.

http://webpages.charter.net/eyedolx/dyno-11-1-03.jpg

Without the trans problems back when the trans was new after the break-in period and different tuner running 28 degrees of timing this is what car made unlocked.

I don't have the printout but we did a torque spike on a previous run during this and car made 455rwtq on a downshift.

http://webpages.charter.net/eyedolx/dyno-4-1-03.jpg

Now car is on a scaled 25.5 degrees of timing to 30 degrees of timing right before 6600rpm shift. I have a SS4000E -- With PY3600E setup I was seeing 98-100% injector duty cycle at shift. --- now with SS4000E and new tune I am seeing 100% injector duty cycle at 5900rpm and seeing 108% at shift.

No dyno on new setup yet.

 

The reason to dyno locked is so you can see what the motor actually makes, where it comes on and falls off, without everything being skewed by stall torque
multiplication and slippage. Don't know about yours, but the Dynojets I've been on have a very difficult time dynoing unlocked A4s with any consistancy run-to-run. Seems to depend greatly on both dyno operator technique and exactly what you do when you nail it.

Its true most of us aren't locking the converter at all while racing, but it's also true that the real world load your car sees when unlocked is STILL different than being unlocked on the dyno. Just my .02.

 

My girlfriends car.....
2002 Z/28
PP LS6 style heads
224/228 571/591 112
vig 3200
FLP's w orp's
Corsa
bullet muffler in Y
Lid
K&N
ASP
3.73's
On a dyno jet 382, tq was about 342 unlocked

On a mustang style dyno with the same mods as above but with 2.73 gears and no bullet muffler(car was insanely loud) 403 (unlocked) and about 350 rwtq
First time at the track she ran a 12.2x at 111 with the 2.73's and the 1-2 shift at 5500. Haven't had a decent track since the new gears.