I held the record for horsepower with a stage 1X cam - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 07-11-2004, 01:17 AM   #1
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Default I held the record for horsepower with a stage 1X cam

for about an hour. I pulled 268.8 with 340 ft/lb torque today. Had some major drop off in power around 6 grand with what sounded like a miss. I wasn't logging misfires so not for sure but going to grab some new plugs and wires tomorrow and change em to see if it helps.

An hour later Chris Mercendante (Merc on clubgp) pulled a 304 with 360 torque to take the record. He has a ported blower and a few other mods over me but his car was dialed in and sounding sweet!

We dynoed about 11 3800'* today 1 of them a series 1 ssei (Gonneville). I never realized the whine on the series 1 blowers was so loud. Much louder than mine. Must be due to the smaller pulley size. His pull was 162 or so at the wheels (dont remember exactly).

Finally we also dynoed Scott'* GXP. Disappointing to say the least. 202 fwhp with 240 ft/lb torque. With a stock rating of 275 crarnk we should have seen 220 or so.

I'll post my dyno sheet tomorrow. To tired to do it tonight.
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Old 07-11-2004, 01:22 AM   #2
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Damn. You have ALL the fun.

Todd, I've never heard an 'intaked' Series 1 that wasn't louder than a Series 2. With my smaller pulley (2.2") and the raised rev limiter, I'm spinning my M62 at 16,000 rpm'* wide open.

Honestly, I don't think it'* any louder than yours in reality, it'* just a higher pitch.
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Old 07-11-2004, 01:26 AM   #3
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I guess it was the pitch that was higher, but whatever it was it made its presence known in a big way.
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Old 07-11-2004, 01:40 AM   #4
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Damn dood.
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Old 07-11-2004, 09:05 AM   #5
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Here are the pulls. The first was with a 3.2 no Knock and a little rich so I put on a 3.0 and Scott leaned it out a bit. 2nd and third pulls were stronger with more boost but had the "miss" problem at 6 grand. Not sure what that is yet. The power equates to

336HP with 425 ft/lb torque at the crank.



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Old 07-11-2004, 11:58 AM   #6
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336!! Wow! Now i tried to find the difference between this and your pre-cam days with the roller rockers . . . No Luck. Weren't you around 304 with just the rockers?

You know me, just trying to figure out if it would be worth my time to go straight for the cam.

one last thing, i could not see the horsepower sheet on your post.
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Old 07-11-2004, 12:54 PM   #7
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Damn dude, That'* some sweet power there Mr. former record holder. Hope you get your 6grand power drop taken care of. 13'* are just knocking on your door!
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Old 07-11-2004, 01:04 PM   #8
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Quote:
Originally Posted by Xac Xado


336!! Wow! Now i tried to find the difference between this and your pre-cam days with the roller rockers . . . No Luck. Weren't you around 304 with just the rockers?

You know me, just trying to figure out if it would be worth my time to go straight for the cam.

one last thing, i could not see the horsepower sheet on your post.
257 (321crank) was my best pull wih the rockers. With the cam I had less torque with about the same horsepower however now that my KR problems if fixed I dropped a pulley size to a 3.0 picking up about 13 hp and can probably go to a 2.8 for another 20 horsepower. It was also VERY muggy and hot yesterday and the dyno computer was only reading 14 percent humidity (umm it was close to 100) so the numbers may be skewed slightly although by how much I dont know. Scott was expecting 280...

As for my pull, if you can see it, check my modsl ist, should also be there.

Search for Dyno by Rogue came up with:

http://www.bonnevilleclub.com/forum/...ht=dyno#198221
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Old 07-11-2004, 01:11 PM   #9
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Your Bonne really is on steroids Rogue.

Great numbers....now let'* see some new times.
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Old 07-11-2004, 04:55 PM   #10
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Quote:
Originally Posted by 2000SilverBullet
Great numbers....now let'* see some new times.
Next chance will be BonnieFest. Can't wait...would be awesome to break into the 13'* at Bfest.
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