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Old 11-18-2017, 11:01 PM
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Default 400rwhp

I'm putting a LS1 in my -69 Camaro. What is the easiest and cheapest upgrades I can do to get 400 rwhp?
Engine info
Stock LS1 with 241 cylinderheads (-99 Corvette)
Dough's longtube headers and 2.5" Magnaflow
92mm trottlebody

Last edited by Pompelen; 11-18-2017 at 11:12 PM.
Old 11-18-2017, 11:04 PM
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A cam and tune will do it
Old 11-18-2017, 11:15 PM
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Any suggestion on good manufacturers/supplyers on a good cam kit?
Old 11-18-2017, 11:28 PM
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Texas Speed, Tick Performance, and Cam Motion to name a few
Old 11-18-2017, 11:29 PM
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Cam Motion, Texas Speed and Performance, ws6store.com, Brian Tooley Racing, among many others.
Old 11-19-2017, 06:01 AM
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I think if he reworks the heads then less cam is needed than stock 241s and bigger cam with the power higher up the curve
Old 11-19-2017, 06:24 AM
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With all the supporting bolt ons, I would think something fairly mild like a 224/224 and ls6 intake should do it. If you're looking for top end power and budget supports a fast intake, that should definitely do it. And a cam only swap is easier and cheaper than messing with the heads.
Old 11-19-2017, 09:01 AM
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Thanks! I have contacted manufacturers/supplyers. Guess I will hear from them on monday
Old 11-19-2017, 11:01 AM
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Originally Posted by mikedamageinc
With all the supporting bolt ons, I would think something fairly mild like a 224/224 and ls6 intake should do it. If you're looking for top end power and budget supports a fast intake, that should definitely do it. And a cam only swap is easier and cheaper than messing with the heads.
he will not see 400rwhp without working the heads. show me a dyno where anyone has and no unless it is a huge cam.
Old 11-19-2017, 11:04 AM
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https://ls1tech.com/forums/dynamomet...-bolt-ls1.html
Old 11-19-2017, 12:39 PM
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Ls1's have made up to 470 rwhp in a max effort cam only build.
Old 11-19-2017, 01:38 PM
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Oh well I do not know anyone who has made 400rwhp with a 224 cam and bolt ons
Old 11-19-2017, 03:11 PM
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180k mile LS1
799 heads untouched
222/228 lunati cam
1-3/4 longtubes, PS ORY, magnaflow catback
3200 budget converter by circle D
Ls6 intake

387 hp
371 tq
Old 11-19-2017, 03:19 PM
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yeah like I said. no 400rwhp with untouched 241s and a 224 and certainly not if LS1 intake. But yeah lots of dyno tricks possible if someone wants to claim 400rwhp with a 224. I recall when the old and new gen 224 cams were tested on an engine dyno on a stock LS1 with LS6 intake and even electric water pump and no mufflers it was about 447-470 flywheel hp depending if using the 224/224(.581") cam or the 224/227(.615"/.605") cam. Even the later TSP cam would be just under 400rwhp. 1-7/8" dyno headers used as well.


The whole chasing a peak number is ridiculous and pure newb.

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Old 11-19-2017, 03:45 PM
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Ya we just need to drill into peoples heads that dynos are for tuning and bragging rights. If we spent 1/16th of the time talking about dialing suspension for maximum weight transfer while remaining streetable as we do about horsepower, more people would be running low 11s high 10s. OP, don't focus on a HP goal, just tell the cam experts what you want the car to do and they will handle it. If you want to read about the magic behind all of it and understand why your making power then thats totally cool. Its not rocket science. Its an air pump that's ancient by todays standards.
Old 11-19-2017, 03:52 PM
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Originally Posted by Bspeck82
Ya we just need to drill into peoples heads that dynos are for tuning and bragging rights. If we spent 1/16th of the time talking about dialing suspension for maximum weight transfer while remaining streetable as we do about horsepower, more people would be running low 11s high 10s. OP, don't focus on a HP goal, just tell the cam experts what you want the car to do and they will handle it. If you want to read about the magic behind all of it and understand why your making power then thats totally cool. Its not rocket science. Its an air pump that's ancient by todays standards.
Couldn't agree more!
Old 11-19-2017, 04:06 PM
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My bone stock ls6 made 393 with nice power across the board, not peak. Ls6 I know, but trade the cam for an after market and it worth a lot more than the difference between 243 and the 241. Look on the core the forum, they have a proven formula which was something like 224 cam (not stuck on it, just using for example) fast intake and all the bolt ons and it was good for 420 at the wheels. Like it was said, I wouldn't chase dyno numbers but 400 at the wheels give or take a few isn't hard and I consider mine "about 400"
Old 11-19-2017, 05:02 PM
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I made over
400 rwhp with just bolt ons
Old 11-19-2017, 06:57 PM
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I think answers from various camshaft/kit suppliers will start coming in to morrow. I'll keep you posted.
Old 11-20-2017, 07:03 PM
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Suggestions from some off the vendors I have been in contact with

#1 218/227 .600/.600
#2 231/242 .617/.592
#3 218/224 .553/.553
#4 221/226 .595/.586
#5 269/273 .525/.532


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