Bad_tx_Z28

iTrader: (3)

okay, i hope this doesnt sound stupid...but im trying to gues how much hp im currently making. I have all mods in my sig plus a madtuner.com tune with performance tuning. So what are your guesses. The only reason im asking is because there is no dyno anywhere close to me. so guess away, thanks guys!

PNYKLR-TA

iTrader: (1)

Probably Under 300 Rwhp Something Like 290 Or So Would Be My Guess, But Someone Else Should Chime In Soon And Let You Know.

ss.slp.ls1

iTrader: (36)

I was gonna say 280, but I could be low balling it.

Bad_tx_Z28

iTrader: (3)

Isnt the stock rating like 275?? i was thinking around the 310 or 315. Also are you guys talking about RWHP or at the Flywheel

ss.slp.ls1

iTrader: (36)

I always refer to rwhp.

MadMike 97 Z28

iTrader: (3)

thats at the flywheel

to the wheels i have seen A4 cars make in the 230-250 range stock so i would guess all your mods have gotten you up to 275. however i made 276 with just a CAI on my 97 M6 car, but 97's have better flowing heads and are rated stock at 285.

LSWHO

iTrader: (1)

I dynoed 231 stock

GIZMO

iTrader: (8)

Are you sure of that?

ryanmh1

Rating increase was in 96 and was due to the switch to dual cats which resulted in less exhaust restriction. The 95 California emissions cars with dual cats were also rated at 285 IIRC. WS6 was 305. No engine changes to get that, however.

botlfed

i have the same mods on my 93 transam except for the headers i was 256rwhp so im saying 270

Bad_tx_Z28

iTrader: (3)

well i guess thats not too bad...at least the car runs like a bat out of hell!

lt1-xjs

270-280 rwhp. It takes quite a few bolt on's for most people to get 300 rwhp. Maybe, take it to the track?

Bad_tx_Z28

iTrader: (3)

yeah i have been wanting to, seems about every weekend it wants to rain, or when its nice out im busy...but im def going soon.

mpe331lx

iTrader: (5)

YES

The HP rating did go up due to the Exhaust changes, BUT the 541 heads that came on the 97s (and some 96's) flow slightly better than the previous 374 and 643s.

blk97z28

iTrader: (3)

I did 265 RWHP with only LT'S and y I am getting a full cold air intake and I had a bad O2 sensor when I ran her on the dyno. I think I made "GOOD" numbers for only having the LT'S and Y the 285 rating is at the crank so expect around 235-245 to the wheels stock. i DYNOED 246 stock and 275 now I do what is in my sig.

blk97z28

iTrader: (3)

I made pretty good stock #'s by your standards I did 246 RWHP stock and 270-275 stock RWTQ.

GIZMO

iTrader: (8)

Interesting. That would actually be a 561 head. Have you flowed some? The ones that I have tested did not do so well. Maybe you have some results that you can share?

Bad_tx_Z28

iTrader: (3)

I wish there was more LT guys in my area, nothing but some LS ******...but oh well. They will just have to wait until i decide to rebuild the ole LT1 and blow their doors off

355z28

iTrader: (8)

now take the dang thing to the track i want to see what it runs!!

MadMike 97 Z28

iTrader: (3)

yes i saw this in a thread a while back when i found out that the 561's flow better that the 374's and 643's but the 643's are the preferred head to port because they are thicker castings. The 561's were said to flow 10% better in stock form. here is the thread http://www.camaroz28.com/forums/showthread.php?t=427346