jlaw

Let me preface this by saying that I am 100% satisfied with Norris Motorsports and Mike's tuning. I feel he did everything he could and he definitely took care of me. I don't fault him in the slightest and I would tune there again in a heartbeat.

Mods are: Futral F13 (230/232 .595/.585 112+2 - gomer's old cam that made 470/420 with heads), LS6 intake, Grot LT's, MTI lid, dumped Dynomax race bullet, free mods. Stock rear and gears.

Best pull was 375rwhp/360rwtq SAE. It peaks at 6200 and carries the power flat to 6500. Needless to say, this is quite a bit less than where I was hoping to be. I'm on the road and will post the graph when I get home. The curves look good, but the peak #'s just aren't where I expected them to be. AFR was flat, in the 13.1 range.

Untuned, pre-cam/LS6 intake #'s were 333/342. So, cam and intake gave me 42rwhp/18rwtq. By all rights, I should be making bigger numbers. I realize peak numbers aren't everything, but still. I don't have a TB or UD pulley, that may help a bit.

What gives? Any comments/input/advice/suggestions?

JNorris

iTrader: (4)

Is your car an auto or 6sp?

KGSloan

do you have a cutout?

those make a huge difference on the dyno

jlaw

Whoops, forgot to mention that. It's a M6.

My current exhaust setup is LT's to ORY to dumped race bullet... Mike said that cutouts really wouldn't have made a difference. The ORY is pretty crappy though, not mandrel bent. That's something I'll have to change.

Mike K.

We all dyno lower in Florida, this seems to be the norm. Just make sure if you want the best numbers that you leave no stone unturned. Did you dyno with the shortbelt on? A cutout might help who knows but its worth a shot, Was the cam installed correctly?
Are you getting valve float at all ? Do you have an underdrive pulley? Also FWIW I had a friend with cartek heads and cam that got tuned at Norris and he also did not make it to 400 rwhp SAE, Norris told him that a bearing was going bad in the dyno which probably lowered his numbers by 10 or so hp.

I would say try to redyno at a different dyno. If the numbers are the same start looking for more mods or problems.

gomer

iTrader: (13)

Jon, hey here are a few things that I'd try to get a little better number out of it.
1. ASP pulley, worth it's weight in gold on the dyno.. every car should have one.
2. A really good ported TB, on my STOCK WS6 I gained 6rwhp with one, a modded car would gain even more.
3. Fix that offroad Y pipe and make everything smooth in it.. I run my car thru a bullet and dumped thru the cutout after the bullet before the rear axle, so that's a good setup.
4. Change the fuel filter and install new plugs.
5. Pull the air filter while dynoing
6. Stick a short belt on the car, also pull the belt off and check the rolling resistance of the tensioner and idler's on the car.. I found a bad idler on a car I did a while back that was KILLING the dyno numbers on the car by 25rwhp.
7. Also, Norris' dyno is notorious for being low.. might want to try another one for comparison.

Tally TransAm

iTrader: (17)

hey jon i got some advice for you
























quit your damn bitching and dyno racing

LSs1Power

iTrader: (5)

Something doesnt sound right. I have the FM7 cam which is 224/230 .587 .593 114 cam and it dyno'd 385rwhp 378rwtq through the hooker and 392rwwhp 382rwtq through the cutout. The other mods are LID, FLP headers ORY and FM7 cam. I gained 44rwhp with the cam. http://www.msnusers.com/CarsRelatedG...hoto&PhotoID=8

Country Boy

iTrader: (24)

You have to remember... in Florida, 80+% humidity is the norm here. Its VERY rare to see <80%, plus its summer here. If we had the 10% that Texas has, then we would dyno some badass numbers

SSactionLs1

Wouldnt it be more usefull to know what your making when your driving the car? Instead of just high #'s

JZ'sTA

iTrader: (23)

If we had the 10% we could acturally walk outside without melting from our own swet.
It sucks.
Anyways for a M6 those numbers are low but check out another dyno and get a cutout.

jlaw

I don't want to make a big peak number using dyno tricks, that's worthless to me. I just want to know why the heck I'm making such horrible numbers. 18rwtq gain for nearly $1000? To say I'm unhappy would be a massive understatement. The HP is decent, but wtf is up with the TQ. Ugh. Going to bed.

LSs1Power

iTrader: (5)

Heads and cam wont increase TQ by that much. If u really want TQ u can go with either NOS, Turbo or a nice stroker. I gained 44rwhp and only gained 19rwtq from the cam. U will find the same results with everyone with just a cam or heads and cam.

jlaw

No. You missed the point, and obviously don't read many cam-only or h/c dyno threads. There are tons of people making far more torque with similar and smaller cams. It is a fact that I should be making more torque (and more power) than I did.

Anyone else have any more input?

LSs1Power

iTrader: (5)

No i didnt miss the point and believe me i read alot of threads. U were complaining that u gained 18rwtq only from the cam and i told u HEADS AND CAM on a stock CID LS1 motor wont increase the TQ as much as the HP. So i didnt miss the point, but i think u were too sleepy and forgot what u said. As i said before ur numbers are low if that makes u feel better. Oh by the way what type of dyno did u run ur car at? U never answered that question. If its a mustang dyno then ur numbers are fine.

jlaw

I tuned at Norris, he has a Dynojet. If it was on a MD, I wouldn't be complaining.

Black02SS

iTrader: (36)

If it was tuned at Norris, it is a Dynojet. Buddy of mine has a FM11/PP heads and only dyno'd 420's on that same dyno through his 10 bolt, but runs 12.0's at almost 120mph with 1.9 60's. Who cares, what does she run at the track.

Tally TransAm

iTrader: (17)

thank you (and HC02SS, it did go 120+, twice )

jon if you want hp, sell the car and go get your mustang back, it put down right at 400 hp and ftlbs.

but what did it run again???

what do you wanna bet the 03 you raced on thursday put down more than 375 and he still got walked like a little bitch.

your still missing bolt ons, and you have one of the crappiest ypipes ive ever seen. theres another 10-15 in easy cheap mods

stop worrying about dyno numbers. they dont win races.

jlaw

I figured he was talking about you, Ryan. Yeah, I know there's a few things I can do. I plan on going up to SGC this week if possible, we'll see what happens.

Black02SS

iTrader: (36)

Nice to see everyone knew who I was refering too. If it makes you feel any better, my setup is one that is a low dynoing one. Car stops making power at 6k (403/380), but I still managed to run a pretty decent time in the 1/8th (7.7 @ 94mph 1.86 60').