What is the best HP and Torque cam for a H & C 346 LS1?

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10-25-2002, 01:20 PM

Reckless

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

Man that's like asking a group of guys which set of ***** is the nicest. Everone will have a different choice <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

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10-25-2002, 03:06 PM

DONAIMIAN

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

Well.... I would not say something excessively large <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> , but not small...... o wait were talking about cams <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

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10-25-2002, 03:09 PM

FatZ28

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

"Man that's like asking a group of guys which set of ***** is the nicest. Everone will have a different choice"

Well Said!!

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10-25-2002, 06:14 PM

Fenris Ulf

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

By definition a cam that has the "best" horsepower won't have a broad torque curve <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

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10-25-2002, 06:33 PM

02 'Hawk

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Reckless:
Man that's like asking a group of guys which set of ***** is the nicest. Everone will have a different choice <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <hr /></blockquote>****, those Coors Light "Twins"

they're the best.

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10-25-2002, 09:06 PM

Brian-GTP

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

Thunder Racing made 455/418 on a 346 https://ls1tech.com/ubb/cgi-bin/ulti...1;t=008127;p=2

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10-26-2002, 12:01 AM

verbs

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

[QUOTE]Originally posted by Brian-GTP:
Thunder Racing made 455/418 on a 346 https://ls1tech.com/ubb/cgi-bin/ulti...1;t=008127;p=2[/Q UOTE]

*cough* shortbelt *cough* <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

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10-26-2002, 12:34 AM

Phil99vette

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What is the best HP and Torque cam for a H & C 346 LS1?

Not considering idle quality but sheer horsepower and torque what is the best cam? Something that produces a nice broad torque curve and good hp?
Phillip

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10-26-2002, 05:17 PM

Fulton 1

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Reckless:
Man that's like asking a group of guys which set of ***** is the nicest. Everone will have a different choice <hr /></blockquote>This is an experiment I'm willing to try. I think with enough practice/research we could come up with a common choice. Someone want to set it up? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

If it were me and I were building a H/C 346 I would definitely look at one of the TR reverse split cams and GTP heads. The dynos I see from these setups are consistently impressive.

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10-26-2002, 08:59 PM

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verbs

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Jason99T/A:
 <blockquote>quote:<hr />Originally posted by verbs:
*cough* shortbelt *cough* <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <hr /></blockquote>And your point is? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> The shortbelt is worth 2hp.<hr /></blockquote>I saw a car do back to back pulls, and consistantly had about 6-7rwhp or so more peak. Maybe it was variance I saw then. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

So I got a few questions for you Jason.

First, if the shortbelt mod is worth 2rwhp, then why even bother doing it? Sounds pretty pointless to me to go to the trouble on the dyno for a measily 2rwhp.

If it does only give 2rwhp, then why would he even bother listing it as one of the mods he had on the car when he dynoed??

That'd be like me adding the Fernco hose mod when telling everyone my basic mods.

Second, why is it that everyone I've seen do it at the track gains .1/1mph or so. Does this mod give like 20rwhp down low but only 2rwhp up top? If this mod does only give 2rwhp (assuming across the board), then there'd be no way people would be gaining .1/1mph at the track from it.

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10-26-2002, 09:19 PM

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Country Boy

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by verbs:
 <blockquote>quote:<hr />Originally posted by Jason99T/A:
 <blockquote>quote:<hr />Originally posted by verbs:
*cough* shortbelt *cough* <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <hr /></blockquote>And your point is? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> The shortbelt is worth 2hp.<hr /></blockquote>I saw a car do back to back pulls, and consistantly had about 6-7rwhp or so more peak. Maybe it was variance I saw then. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

So I got a few questions for you Jason.

First, if the shortbelt mod is worth 2rwhp, then why even bother doing it? Sounds pretty pointless to me to go to the trouble on the dyno for a measily 2rwhp.

If it does only give 2rwhp, then why would he even bother listing it as one of the mods he had on the car when he dynoed??

That'd be like me adding the Fernco hose mod when telling everyone my basic mods.

Second, why is it that everyone I've seen do it at the track gains .1/1mph or so. Does this mod give like 20rwhp down low but only 2rwhp up top? If this mod does only give 2rwhp (assuming across the board), then there'd be no way people would be gaining .1/1mph at the track from it.<hr /></blockquote>and how about using a FULL exhaust. Not just header "extensions". I want to see muffler(s) and all.

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10-26-2002, 09:37 PM

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Jason99T/A

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by verbs:
I saw a car do back to back pulls, and consistantly had about 6-7rwhp or so more peak. Maybe it was variance I saw then. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <hr /></blockquote>

We have done back to back testing with the shortbelt on quite a few cars. The most we ever saw was 3hp peak and most see between 1-2hp.

<blockquote>quote:<hr />First, if the shortbelt mod is worth 2rwhp, then why even bother doing it? Sounds pretty pointless to me to go to the trouble on the dyno for a measily 2rwhp. <hr /></blockquote>

The customer wanted the car dynoed as he raced it on the street or at the track. That was the main reason for the shortbelt. Also, all his previous dynos were with the shortbelt. So, we didn't want to introduce any other variables in the dyno by not running it.

<blockquote>quote:<hr />If it does only give 2rwhp, then why would he even bother listing it as one of the mods he had on the car when he dynoed??<hr /></blockquote>

To most people, the shortbelt is considered a "dyno trick". He included it because he wanted everyone to know what was done to achieve the numbers he posted.

<blockquote>quote:<hr />Second, why is it that everyone I've seen do it at the track gains .1/1mph or so. Does this mod give like 20rwhp down low but only 2rwhp up top? If this mod does only give 2rwhp (assuming across the board), then there'd be no way people would be gaining .1/1mph at the track from it.<hr /></blockquote>If people are seeing .1/1mph from the shortbelt, something can't be right. I and many others have ran back to back at the track and all have seen less than .05/.5mph gain. On my car, it hardly made a measureable difference.

All the above cars I mentioned were running an ASP crank pulley. Was the car running a stock crank pulley when he saw 6-7rwhp with the shortbelt?

[ October 26, 2002, 11:12 PM: Message edited by: Jason99T/A ]

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10-26-2002, 09:39 PM

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Country Boy:
and how about using a FULL exhaust. Not just header "extensions". I want to see muffler(s) and all.<hr /></blockquote>Chris's car was dynoed with his 3" y-pipe and through a wide-open Borla. He was not running open headers w/ extensions. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />

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10-26-2002, 10:12 PM

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Brian Tooley Racing

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

Since all of our Stage II heads have almost the same flow numbers, then the RWHP obtained is dependent on the parts that are put around it. With that being said, I think Verbs made 440 RWHP with the TR 230/224 which is the highest RWHP H/C we have seen. So my vote would be on that cam, you would probably have to flycut the pistons to go any bigger. My 2 cents. Did the GTP car that made 455 RWHP have a TR cam?
Brian @ TEA

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10-26-2002, 10:15 PM

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Jason99T/A

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Brian Tooley:
Did the GTP car that made 455 RWHP have a TR cam?
Brian @ TEA<hr /></blockquote>Brian, the car with the GTP S2 heads had the TR230/224 cam.

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10-26-2002, 10:24 PM

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Brian Tooley Racing

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

I see a pattern. It seems that the TR 230/224 must be THE CAM, for now. The only way it could have been better is if we had come up with it. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

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10-26-2002, 11:04 PM

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Brian Tooley:
So my vote would be on that cam, you would probably have to flycut the pistons to go any bigger.<hr /></blockquote>I disagree (unless you mill the heads. I had .85 clearance with a .010 mill job...I'm sure you could setup it up to a 232/226 or something like that on unmilled heads.

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10-26-2002, 11:09 PM

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verbs

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

<blockquote>quote:<hr />Originally posted by Jason99T/A:
 All the above cars I mentioned were running an ASP crank pulley. Was the car running a stock crank pulley when he say 6-7rwhp with the shortbelt?<hr /></blockquote>Yeah stock pulley. I didn't see pulleys listed in his mods so I assumed they were stock. I figured if you are gonna mention a measily 2rwhp shortbelt mod in there, he'd for sure be mentioning that he had pullies as well. Regardless, his cars a beast, especially with the bulky rear end....some more small mods (carbon fiber driveshaft, alum flywheel, ported TB etc...could land him in the 460's which would kick major ***!!

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10-26-2002, 11:12 PM

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Brian Tooley Racing

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

I didn't know what kind of clearance you got with that cam, .085" is good, thats why I said probably. You should have milled your heads more maybe?

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10-26-2002, 11:16 PM

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Re: What is the best HP and Torque cam for a H & C 346 LS1?

Matt, that's kind of what I figured on the pulley. Bypassing the power steering with a stock crank pulley on the car will probably see a few extra hp/tq over a car with an ASP since it was not being underdriven with the stock crank pulley in place.

Chris's car had a ported TB and an ASP crank pulley, but stock driveshaft and flywheel.

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