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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 09-28-2011, 02:02 PM   #1
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Unexpected benefit of Solo Hi Flow cats

The shifting is better now, not the shifter, its the feel of the car when you engage the clutch after shifting. It used to have a jolting engine brake effect on engagement before, especially 1st to 2nd about 80% of the time. It now engages smooth as glass in every gear without trying to find a sweet spot in rpm's.

Anyone else experience this?
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Old 09-28-2011, 02:09 PM   #2
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I know very well that "engine brake" feel... My car is getting an overhaul at the moment... including going cat less... so I would love for this to be an added bonus.
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Old 09-28-2011, 02:49 PM   #3
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I shifted better too. I think it is because you can hear the engine better and you get a better feel for timing your shifting properly. I have a different exhaust though. With the stock exhaust it was too quiet.
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Old 09-28-2011, 03:11 PM   #4
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I shifted better too. I think it is because you can hear the engine better and you get a better feel for timing your shifting properly. I have a different exhaust though. With the stock exhaust it was too quiet.
I don't think its me, its the car. It doesn't matter what rpm I shift at anymore, you let off the clutch now and barely feel it engage.
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Old 09-28-2011, 08:01 PM   #5
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I did not, and I don't see how removing the cats would impact shifting being smoother or clutch engagement.

Rock on though.
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Old 09-29-2011, 08:31 AM   #6
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Originally Posted by jpizzle007 View Post
I did not, and I don't see how removing the cats would impact shifting being smoother or clutch engagement.

Rock on though.
I don't see how either, maybe coincidence, but I've got 17,000 miles on my car and it has always done that until the cat swap. Does your car jolt or otherwise engage rough in the first few gears?
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Old 09-29-2011, 09:14 PM   #7
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I believe it has something to do with the air/ fuel ratio
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Old 09-29-2011, 09:23 PM   #8
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No, I haven't noticed; I'm still trying to find the sweet(est) spot.

I 'thought' I got a little better feeling after installing the ADM Race Scoop, though.

I've modified my shifting to get through the gears quicker, while trying to keep it
under 2K RPM, but I'm still getting 2-3 notchy-ness.

Better, but I'm still trying to find 'Best'
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Old 09-29-2011, 09:25 PM   #9
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I believe it has something to do with the air/ fuel ratio
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Old 09-29-2011, 09:48 PM   #10
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Quote:
Originally Posted by Ricamaro View Post
No, I haven't noticed; I'm still trying to find the sweet(est) spot.

I 'thought' I got a little better feeling after installing the ADM Race Scoop, though.

I've modified my shifting to get through the gears quicker, while trying to keep it
under 2K RPM, but I'm still getting 2-3 notchy-ness.

Better, but I'm still trying to find 'Best'
my shifter still feels a little notchy sometimes, that hasn't changed. Its the clutch engagement that feels different. Smoother, no engine brake effect. I'm 3 days into the cat install, and it still feels awesome. I shift at 2500 to 3k on 1 to 2 and 2 to 3. Even friends that I let drive it before commented on how rough it was when you let the clutch out. After 17,500 miles in 9 months, I was never able to find that consistent "sweet spot". Sometimes it was at 2500, sometimes 3200. Now it's not an issue. I'd love an explanation, it has to be something to do with the rpm's when you let off the gas.
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Old 09-30-2011, 07:50 AM   #11
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I've had mine on and off a couple of times and after 24k miles I've noticed no difference as far as shifting.
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