99 black ss sj

iTrader: (8)

well i was disappointed with the result, but this will do for now, i didnt scan it yet i can post it but the numbers are, 385 with 358 of torque, they said its because i have cats and i dont have a pulley but should be around 400hp if i get rid of the cats and with a pulley so well see what happends

N4cer

iTrader: (11)

That was through cats and a muffler? No cutout? Not bad for cam only with a few boltons.

Slowhawk

iTrader: (12)

Did you dyno the car before the Cam?

GuitsBoy

iTrader: (4)

Not to mention you still have egr possibly restricting the intake, no ported throttle body, and i can only assume that you have a lid. Some dynos read a little lower than others. Ive seen intake and ehaust LS1s dyno in the 280s. Ive seen one stocker pull 259. Did you notice what other cars were putting down on teh same dyno?

99 black ss sj

iTrader: (8)

no i didnt dyno it b4 i got the cam, yeah parts of it could be the egr but umm maybe if i get rid of the cats,egr and get asp pulley that would bump it up

N4cer

iTrader: (11)

LS6 (at the least) heads would help too.

Doomsday

iTrader: (8)

Do you got a lid yet?

99 black ss sj

iTrader: (8)

yes i have a lid

TXZ28LS1

iTrader: (5)

i dunno man, i mean 385rwhp is pretty bad. u got autos putting that kind of number with a lil 224 cam. something isnt right... cam only u should be well over 400 rwhp on stock heads with that size of a cam.

FstBlkz28

iTrader: (13)

My 230/224 made 395/377 thru intake, LT's, and 3" duals ... now i have cats and a catback & and a pulley ... but haven't redyno'd. But i'd be pissed if i was any lower than 385. Your cam is substantially bigger than mine .. i'd be pretty upset.

Who installed and tuned your car?

99 black ss sj

iTrader: (8)

yeah i am but looking to improve those numbers

prostock_bigblock

iTrader: (11)

is this on a mustang dyno?
and if its on a dyno jet
who did ur tune? I am sure if its not a mechanical problem it must be in the tune. Even when u get rid of cats and installed a pully it wont put the smile on your face. as for a M6, there where couple of small camed motors making 380-395rwhp with a stealth MTI cam and 222 cams and also GM hot cam.

I think with those cam specs u should be atleast 395RWHP and little bit over the 370rwtq.

sidewayz28

iTrader: (24)

not to bust ur ***** but i have a much smaller cam then the MS4 and i put down 395 rwhp with cats...

magius231

iTrader: (8)

sorry Dyno numbers mean spit, there are too many variables that could account for low numbers for you or anyone else. Take it to the track and find out the truth.

Superjoe

iTrader: (2)

Like said before, was that mustand or dynojet? I just dynoed my MS4 on a totally stock '00 motor (with LT's, cat's and gmmg) and put down I think 360rwhp on a mustang dyno. Before that it put down 333rwhp on a dynojet.

orangeapeel

iTrader: (18)

Just cause you went with a bigger cam don't expect it to be this 440rwhp monster. Bigger isn't always better.

300bhp/ton

Think you need to post the dynograph.

There's so many variables. So you need to deduce whether the reading is accurate and on what type of dyno. If that all checks out, then you can look at mechanical reasons such as was the cam degreed correctly?

So:

1. What type of dyno was the run on?

2. What rpms did you spin it to?

3. What rpm was the PEAK hp at?

4. What was the a/f ratio?

5. What cats are you running? Most good high flow cats will only have miniumal if any affect at this level of HP.

I also doubt EGR will have any affect at all. A pulley and ported TB would all help, but that may not be the reason behind the numbers.

orangeapeel

iTrader: (18)

transamfreak01

iTrader: (8)

yeah send a dynograph.. but one of my buddies in his bubble impala only put down about 330 and hes in the mid 12's w/ no weight reduction. he was really upset with the numbers it dynod at but very pleased when he went to the track. dont get to upset with the numbers

Beast96Z

iTrader: (21)

I'd say it's in line for a stock LS1 intake, no TB, and no pully. Get a LS6 intake, ported TB, and a pully and the numbers will be over 400 no problem.