666 speed

iTrader: (4)

I know it's probably not the smartest idea to start with a cam and I didn't go into it expecting unrealistic numbers for an otherwise stock car.

2004 GTO M6 39,XXX miles

TSP 233/239 .595/.603 112
Patriot Gold dual .650 springs kit
Hardened 7.400 pushrods
LS2 timing chain
K&N in the box filter
and a tune.

First dyno pull 277/271 with a basic tune. After tuning, we showed hp and tq gains through the entire RPM range, but ended with 326/312 at the wheels.

Thoughts? I'm not looking for advice on what to do next. Thanks!

Fabrizi

iTrader: (1)

Headers?

666 speed

iTrader: (4)

Nope. Everything else is stock. Just an FYI for anyone who considers that cam on a stock LS1.

I know the exhaust is choking it up pretty good.

brad8266

iTrader: (23)

Was the 277 before the cam?

PewterScreaminMach

iTrader: (7)

Huh, my dad's bone stock 2004 GTO M6 put down 300 hp to the wheels and a little under 300 rwtq, so I suppose with NO other mods, a cam-only might yield those results. Sounds like it was really weak untuned, though.

WKMCD

iTrader: (2)

I think this is a case where LT's will show a huge improvement. That's a pretty bad choice of cam for stock manifold back exhaust.

666 speed

iTrader: (4)

Thanks. I didn't know what I really thought about the results. The lady who ran the dyno said that '04 GTO's had been putting down ~250 stock on her dyno. I don't know if I believe that or not though.

98camaroLS1M6

iTrader: (35)

mustang dyno? How does the car feel on the street?

666 speed

iTrader: (4)

Ahh, I forgot to mention it was on a Mustang dyno. My apologies. The car feels much stronger on the street. I'm pleased with how it runs cam only.

I was just a bit surprised by the numbers. I've heard that a Mustang dyno can show numbers lower than a Dyno Jet. From the base tune to the dyno tune we gained 49hp and 43tq to the wheels and only came up with 326/312.

brad8266

iTrader: (23)

A mustang dyno is a chassis dyno. A 49 HP gain cam only with no boltons is a solid gain. Dont worry about the dyno numbers, some read lower than others.

snake charmer

iTrader: (118)

cam like that needs to breathe good in and out .

trukk

iTrader: (1)

First time I got my car dyno'd I was 295 on a mustang dyno. Needless to say I was a bit underwhelmed. Then a guy with a procharged z06 got on the same dyno, and pulled a 385. He had 475 numbers on another dynojet, and was pissed.

To the OP, it's all relative. You got some nice gains from your cam

-Chris

jmdgto

when you add lt headers your car will explode with new power. like that term. lol

$750 L98

iTrader: (7)

Well i'm not too dissapointed in my results then, my cam is a 113+3 232/234, with an LQ9/317 heads

Only made 290/380, Looks like headers are next for us - But still strong numbers from your baseline!

venom ws7

iTrader: (13)

Those are good numbers on Mustang dyno no Boltons.

the car is screaming for a set of headers.

Slvr00Bird

iTrader: (2)

+1...

BlkBird2000

iTrader: (10)

Start putting on them bolt ons and your HP/TQ will sky rocket!