1999T/A

iTrader: (4)

Made 347rwhp/362tq with the mods in my sig , on the final dyno run . I know , I know , Im slowwwwwwwwwwwww


Jeff did say that I would probably gain 40 - 50 rwhp when I change out the stock catback !

I must have gotten one of them pigs that ppl talk about


I have a paper printout of the dyno sheet , and should be recieving the pics in Email shortly . WHen I do I will post it up .

Brandon Boomhauer

iTrader: (10)

No cutout or anything?

1999T/A

iTrader: (4)

Nope , just Mac midlengths , ORY and a stock catback . I believe Jeff when he said that I should gain a TON with a catback .The dyno graph shows where the HP hits a wall and goes straight . He says thats the stock catback holding me back . I had no idea that the stock catback was so restrictive .

jrp

iTrader: (16)

the stock catback is restrictive, but not 40 - 50rwhp restrictive. your missing a good intake setup. and whats the story on the heads?

1999T/A

iTrader: (4)

Stage 1 LS1 heads meaning some light bowl work , competition valve job , and cleaning up of casting flash ( I was told this was done , but looking in the ports , it looked like only some bowl work was done) . I also have done the !FRA mod and have a SLP lid . LS1 intake though . I am going to remedy these two items in the immediate future . Maybe he means LS6 intake and catback . I would think both of them together would be worth 50 on a H/C car, what do you think ?

silverbeast

iTrader: (16)

If you add a ported throttle body with the intake and cat back you will be closer to the 50 hp gain you are looking for. good luck

LSs1Power

iTrader: (5)

I gained 33rwhp 24rwtq by switching the stock Catback with a Loud Mouth.

1999T/A

iTrader: (4)

So does my low dyno reading seem normal with a stock catback and LS1 intake ?

777

iTrader: (21)

i'd say so...when you choke a cammed car your number go down drastically

1999T/A

iTrader: (4)

Cool , for a minute I thought I was driving a turd LS1 .

00RedWs6

Mods you need: Ported Throttlebody,LS6 Intake,Some sort of free flowing catback i.e.Dynomouth,Hooker,anything but chokemaster

1999T/A

iTrader: (4)

Got a guy in my car club that says to use a dynomax ultraflow and 3 inch I pipe and over the axle pipe . What do you guys think ? Good muffler choice ? It sounds like a str8 thru bullet type muffler , which is definitely better than what I got and its pretty cheap .

1999T/A

iTrader: (4)

I have the Dyno chart in jpg format but its too big to post . Anyone know how to cut it down ? its 800kb .

EDIT : I got it down to 500 KB ! cmon baby, just a little more !

99SSLS1

iTrader: (5)

Let me know when you go again, I need to dyno mine too. I'm new to NC and live in Holly Springs. I don't know many people yet.
Eric

prostock_bigblock

iTrader: (11)

...........

1999T/A

iTrader: (4)

Sure thing man ! Nice to see someone else who lives so close on the boards !

1999T/A

iTrader: (4)

Really ? What was your setup at the time ?

LSs1Power

iTrader: (5)

Stock VS LID and Catback.

Camaro97USAF

More NC people! My cars actually up at CAM right now... OFF topic I know..