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55chevy ls1 dyno results

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Old Oct 5, 2009 | 09:55 PM
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Default 55chevy ls1 dyno results
This was my first time to the dyno and I was expecting a little more hp. I'd like some feedback on the results.

2001 Vette LS1 with '98 fbody PCM.

Mods-
Patriot Performance Stage II heads
Comp Cam 224/226 .569/.571 114lsa
Patriot mid length 1 3/4 primary headers
Stock 2000 fbody Tremec 6 speed
Ford 8.8 rear with 373 gears
GTO snorkel tube with Spectra filter (see pic)

I think Spectacle Solutions did a great job with the tuning and they are great folks to work with. They added about 12 hp to the stock tune. They suggested I change out the snorkel tube for a smooth tube and get a better filter. I plan on doing this.
Attached Thumbnails 55chevy ls1 dyno results-ssdynograph.jpg   55chevy ls1 dyno results-pass-eng.jpg  
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Old Oct 5, 2009 | 10:38 PM
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I agree with them on the air intake. That is probably costing you some horsepower. What does the rest of the exhaust system look like?
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Old Oct 5, 2009 | 10:51 PM
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Originally Posted by 1989GTA
I agree with them on the air intake. That is probably costing you some horsepower. What does the rest of the exhaust system look like?
3" collector to 3" Pypes bolt on kit with xpipe all the way out the back with Pypes street pro mufflers.
Attached Thumbnails 55chevy ls1 dyno results-pypes1.jpg   55chevy ls1 dyno results-pypes5.jpg  
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Old Oct 6, 2009 | 12:02 AM
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thats a hell of a car!!!
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Old Oct 6, 2009 | 07:04 AM
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Thanks.

Do the numbers match my setup? 373 rwhp/358 torq
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Old Oct 6, 2009 | 08:19 AM
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thats a dream setup. do you mind posting more pics of the car? as far as intakes go, with all that head room why not go a super vic?
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Old Oct 6, 2009 | 11:08 AM
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im thinking between the mid lengths, the intake, and the rear, you seem pretty close. the intake may be worth 10hp, LTs might be 5ish, and the rar is kind of like how a 9 inch sucks up power so i could see this being somewhat close. i think something might still be a miss though. ill let the experts really help ya though.
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Old Oct 6, 2009 | 12:50 PM
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Nice car. I don't see anything wrong with the exhaust. Could be a stingy dyno. Like was said above you will gain some with a better air intake system.
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Old Oct 6, 2009 | 12:53 PM
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you guys have no idea how gorgeous this car is in person. Pics just dont do it justice.

I offered to trade our 98 vette but he wouldnt bite.

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Old Oct 6, 2009 | 01:57 PM
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Beautiful car.

What wheels are on it, can't see in the pics. Wondering if they might be heavy. Also what clutch/flywheel - my heavy LS7/LS2 eats some HP.
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Old Oct 6, 2009 | 05:58 PM
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Originally Posted by algws6
thats a dream setup. do you mind posting more pics of the car? as far as intakes go, with all that head room why not go a super vic?
I'll add a few pics. Prolly can't afford the super vic.



massls1guy - The wheels are 17" aluminum Billet Specialties Vintec series. The Clutch is a stock LS6 and the flywheel is a 2000 fbody stock one.


everyone - Thanks for the kudos.
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Old Oct 6, 2009 | 06:09 PM
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Yeah, definitely need more pics. Ever since watching two lane blacktop I've needed a '55. The AR 200s wheels looked fantastic on that car!
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Old Oct 6, 2009 | 06:10 PM
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More pics as requested. Thanks everyone.
Attached Thumbnails 55chevy ls1 dyno results-img_1088.jpg   55chevy ls1 dyno results-img_0306.jpg   55chevy ls1 dyno results-interior1-small-.jpg   55chevy ls1 dyno results-beale-st-1.jpg   55chevy ls1 dyno results-img_1086.jpg  

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Old Oct 6, 2009 | 06:26 PM
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Here's a better interior picture and a picture with my friend Shawn's car. I need to lower mine a bit more in the front.
Attached Thumbnails 55chevy ls1 dyno results-bartlett-show-10-small-.jpg   55chevy ls1 dyno results-bartlett-show-7-small-.jpg  
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Old Oct 6, 2009 | 07:02 PM
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Your car is a work of art. No way i'da traded for the vette either
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Old Oct 6, 2009 | 07:12 PM
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a couple of pics I took with my nikon d90 when the car was at the shop.
Attached Thumbnails 55chevy ls1 dyno results-55-chevy-2.jpg   55chevy ls1 dyno results-55-chevy-1.jpg  
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Old Oct 6, 2009 | 07:17 PM
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one I took of the interior
Attached Thumbnails 55chevy ls1 dyno results-55-interior.jpg  
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Old Oct 6, 2009 | 07:20 PM
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Originally Posted by KurtRardin
Your car is a work of art. No way i'da traded for the vette either
oh me either.....but ya know I had to ask.....
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Old Oct 6, 2009 | 07:50 PM
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im speechless!!!!!!!!!
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Old Oct 6, 2009 | 08:56 PM
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Beautiful car! Makes me want to hurry on mine (see below).
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