LSs1Power

iTrader: (5)

My friend and I dont know much about tuning with LS1 Edit so the tunning wasnt that good. We just added 2 degree of timming and that was it. The A/F was good at 13.2 all the way so we didnt touch it. Anyways i was expecting to see 390rwhp or something close to 400rwhp but that didnt happen . The car felt much faster than before and i was confused how a 30rwhp and 3rwtq increase could feel that fast. Anyways after taking a good look at the graph i knew why..... Starting at 4500-6400 i gained around 46rwhp under the curve and around 40rwtq which made me very happy with this cam. Also another nice thing about this cam is that i didnt lose any low end power.

Here is the graph............. http://www.msnusers.com/CarsRelatedG...&PhotoID=5 and this one is a close up http://www.msnusers.com/CarsRelatedG...&PhotoID=4 ....... tell me what do u think guys?

770Guy

Free mods, Ported throttle body, and ASP pulley, close to 400 if im not mistaken?

LSs1Power

iTrader: (5)

Do most of the guys who dyno 400rwhp with only a cam have all these bolt ons? Did anyone get 400rwhp with only Cam, full exhaust and LID?

LEO

iTrader: (3)

I think your combination is fine for the mods you have. I'm sure you may have some more in it, with a little more tweaking, but overall that's a decent running car you've got.

770Guy

ASP pulley, free mods, and electric water pump, will almost certainly get you 400rwhp, you running cats? or ORYP

LSs1Power

iTrader: (5)

With CATS. The dyno before the cam was without Cats, but after the cam the car became very loud i had to put the cats back on.

I cant add the ASP pullies since im getting a Procharger in few months. Im thinking about a TB.

jaberwaki

you explained alot right there...
cats draining you,
tb, free mods, and asp are normal in 400+cam only cars...
also talk to some of the edit masters in here...
i think 2 degrees might not be enough...
i would ask joe overton... he knows his ****

VINCE

iTrader: (1)

Sounds like you scan post and not totally read them.. Cats kill horsepower. When I was cam and headers only I dyno'd 390rwhp/380rwtq with Ed Wrights tuning. Thats with the cats off, 3.42's, unported TB, MTI pulley, no shortbelt, no alum flywheel, and no cutout. I got tired of the rasp and decided to put the cats back on.. I lost 20rwhp with no other changes. Also you mentioned you and your friend know very little about tuning. Good tuning would help you a lot, but get rid of the cats as well if you want to see some of the numbers you see on the board. Also, do not always believe what you read. This is the internet and I have seen people post #'s when they do not even have a car.. I would be happy with those #'s. You have a good starting point for your Supercharged setup.. I would suggest purchasing some 6.0L heads if you can to drop the compression.

LSs1Power

iTrader: (5)

20rwhp loss from the cats I tried the running the car without cats, but it was very loud and i couldnt handle it. I was thinking to put a Cut out before the cats, but i found the collector in that area so i can really do it. My friend said he suggest taking the cats out and putting a muffler instead of the resenator. Do u think that will work?

770Guy

Dynomax bullet muffler instead of the resonator, and no cats.....I think that would be a nice setup, or just ditch the loudmouth and find someone that wants to trade maybe a Hooker catback for your loudmouth, I LOVE my hooker catback, Longtubes+ORYP+Hooker Catback = amazing sound.

1BadAzzWS6

iTrader: (11)

I have the FM4 CAM 112+3. With the stock heads and all the bolt-ons, ported tb, and no cats I'm at 390rwhp and 372rwtq. That was only with MAFT tuning. My a/f was 12.7 across the board. It hasn't been tuned with LS1Edit yet.

LSs1Power

iTrader: (5)

What did u dyno before? Im sure that 112 LSA helps alot in increasing power.

Today i ran my car and checked it with EFI Live and i had .55 degree of knock. Could this affect the performance?

EVIL

i think my feelings are hurt....hahahaha

2 degrees isnt enough timing.

i would take the cats off, and get a stock catback with a cutout.

jaberwaki

no way man you havenothing but respect from me dude...
but i dont want everyonr hoggen up your time or i might have a hard time getting you to work on mine

LSs1Power

iTrader: (5)

Hey EVIL.... How far are u from Mclean Tysons Corner?

lsx24

iTrader: (45)

With 20 rwhp loss from adding CATs, they must have been stock cats, which are very very low flow.

If you get some random or carsound cats, you will lose 5rwhp max, and still be clean (emissions sniffer test friendly) with little or no gas smell. Plus you won't get terrible rasp that non-cat ls1s are famous for.

That's what I would do if I were you, anyway.

Mike K.

You could also try getting a regular catback instead of the Loudmouth like say a hooker catback which is cheap and then putting an exhaust cutout in the I-pipe, I had this setup with no cats and an electric cutout and it was very cool, If I wanted hp just open the cutout with the switch, If I wanted to cruise close it back up and enjoy the ride. Something to think about if you want to ditch the cats.

LSs1Power

iTrader: (5)

Did u have the cut out before or after the cats?

EVIL

im about 10 min from heffners. over by arrundel mills