EVLGTO

I went with a smaller cam, because I've been down the cammed road quite a few times with different LS cars. My cam is the Trickflow/Jegs 228/230 .585/.585 112 lsa and dual spring kit from Scoggin Dickey. It's getting tuned as I type this, I'll put up numbers once its done. 2000 FRC, stock 853 heads,1 3/4 LT headers, corsa xpipe, C5Z TI exhaust w/bypass mod, stock cats, ziptie mod with K&N filter, LS6 intake. I'm predicting about 380whp. Others are saying less, some more.

billymz28

I have the btr stage 2 with PRC 2.5 heads and fast 102mm ported by mamo and put 446 down on a dynomite dyno meter basically reads like a mustang dyno. Put 390 with cam and ls6 intake only with crappy tune

EVLGTO

Wow, both impressive.

turabo87

I'm really interested in your results, not just dyno results but your drivability and overall driving review once you're done. Reason being I might stay with the stock 853 heads (if they are in fact 853 heads that I have). I've yet to check my heads full casting number beneath the valve covers.

EVLGTO

Well, my results were interesting. 363whp/365wtq. The car pulls with a very flat torque curve and feels fast as heck. I think my buddy's dyno reads low, because it feels faster than my 06 law cammed gto that put down 429whp and 392wtq. The vette feels like a rocket. Tons of torque everywhere and you can feel it pull you in the seat way harder than when it was stock. Drivability is awesome, no bucking or surging and idle sounds like it has a nice cam.

billymz28

The drive ability is all in your tuner. My tuner told me anything under stage 3 is easy to make drive like stock and I can say my car drives like stock way better than my last tuner when my car was cam only. He said stage 3 and up is were the driveability can suffer. When he first turned it we didn't get to finish had a knock sound so decided to abort it the tuning session. Thankfully knock was just exhaust leak. It bucked a little on hot starts but went back to finish my drivability tune and it is perfect now. Prevatt automotive did my tune and my buddy's car and highly recommend him. Spent allday tuning my car. Only complaint with my tuner he kept bashing the previous tuner which a little unprofessional in my book just let your tune do the talking.

turabo87

Do you have a graph? If not, what RPM's did you peak torque and peak power at? Also, what's your new rev limiter RPM?

EVLGTO

Shift points are same as stock. The heads are keeping this engine from hitting peak. But I like torque over peak any day.

turabo87

I think I might have to change the title of my thread to All Things Equal: JEGS .585/.585,228/230 vs. BTR Stage II cam. Keeping stock clutch, stock heads is a major plus for me and with plenty of NA torque I'll be a happy camper.

EVLGTO

This was a big concern for me as well, the clutch! I have beat on it these past days and have had no issues.

turabo87

Stock LS1 intake manifold (PN 12563333). Just checked last night. I'm thinking that maybe for that year, some heads didn't have the casting # on that corner of the passenger side cyl head. I haven't had time to check beneath the valve cover for the full casting #, but if I were to bet, I bet no work has been done to this before.

UPDATE: I checked beneath the valve covers and I definitely have the stock 853 heads.