CRZY747

Hey GeorgeC, BADZ is cutting the bottom in order to get better access to port match it, Craig at GTP is in the process of doing this for Jeff. You might want to call Craig if you plan on going with a holly intake with your new setup. He would be able to give you more information on what exactly they are doing, and might be able to help you out if you take this route.

JET

GeorgeC

Ahhhh, now I see. I had never seen a bottom view of the Holley LS1 intake before. Nice...

I'm going to be broke for awhile since I have to pay for a new motor, so I doubt I'll be shopping for one of these intakes anytime soon. Looks promising, though. I'm eager to see some results from folks swapping the LS6 intake out for a ported aluminum one.

Patman

The one big problem with this intake is going to be heat soak. For a street driven car you'll probably see less power than you would with an LS6 intake, although at the track when properly cooled, you should see more. I was talking with Nick Agostino at Performance World last weekend and he was saying that for most combos out there the LS6 intake is preferable. It's only going to really benefit the extreme horsepower cars only. Remember what happens to an LT1 with it's aluminum intake when you run back to back? You lose two tenths from heat soak. The same will happen here. So that little bit of power you might gain from the Holley when cooled down compared to the LS6 intake, will be lost as soon as you make the first pass. Not to mention the added weight.

IndyZ28

but for a fee you could have the intake coated inside and out. MM & FF last month had a 5.0 intake coated on the outside only (no access to the runners inside for coating) and found that with the coating the 5.0 intake was actually being cooled by the incoming airflow at the track. Will you be able to open up the mouth where the TB is bolted is my question though.

DaveSchott

iTrader: (5)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Patman:
<strong>The one big problem with this intake is going to be heat soak. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Have to disagree with you, the heat soak theory is misunderstood, when you throw a bag of ice on an intake you are cooling much more than the intake, like the heads and the water in the jackets. An aluminum manifold cools down very quickly, the upper end of the engine takes a longer.

The real flaw in this theory can be seen by examining flow rates. it takes some time to heat up air, it cannot be done instantaneously. Air does not stay in the intake at WOT long enough to heat it up substantially. If an engine flows 800 cfm at WOT, and the intake has less than 2 cf of volume (real world is more like 1) you have 800/2 or 400 changes or air per minute. That is 6 changes of air per second.

I can see the only way to prove this once and for all is to run insturmented tests of 1) air temp rise going through a manifold in real world conditions and 2) effect of icing down the upper end of the LT1 engine e.g. heads.

LS1's just don't exihibit 'heat soak' but it is there - people throw a bag of ice on an nylon (insultating) manifold. Redirect the cold somehow to the cyl heads and exhaust manifolds and you'll se an LS1 gan .2sec as well.

<small>[ March 14, 2002, 09:29 AM: Message edited by: DaveSchott ]</small>

Pro Stock John

iTrader: (34)

I heard the Holley intake is actually 30 lbs, can anyone confirm? That's substantially heavier than stock.

DaveSchott

iTrader: (5)

30 lbs. is the shipping weight which includes 2 boxes. Someone said 23 lbs, but I'll put mine on an accurate scale tonight.

Fireball

iTrader: (21)

I'm considering LS6 and holley intakes boltons...

moving to bolton section <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

DaveSchott

iTrader: (5)

It weighs 25.5lbs with gaskets and hardware, kinda pudgy.

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong>I heard the Holley intake is actually 30 lbs, can anyone confirm? That's substantially heavier than stock.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">

BADZ

iTrader: (5)

After the port work is done on the intake, I will be getting a polydyne coating for the heads, alum. intake (keeping all heat from sinking in the alum an run cooler), bearings, pistons, rods etc. to reduce all heat factors. I will show cfm flow and numbers between the reg ls6 and a ported alum ls6 and you be the judge.

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

<small>[ March 14, 2002, 04:17 PM: Message edited by: BADZ ]</small>

BADZ

iTrader: (5)

PSJ, It's exactly 23.5 lbs..

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong>I heard the Holley intake is actually 30 lbs, can anyone confirm? That's substantially heavier than stock.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">

2K1_4mula

Actually, with our crappy PCV system, OIL does touch the intake manifold.

This could really be considered an INTERNAL mod.
<img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Patman

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by DaveSchott:

An aluminum manifold cools down very quickly, the upper end of the engine takes a longer.</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Gotta disagree with you there, big time. If I shut off my LT1 and come back an hour later (even with the hood open) and feel my intake, it's still got a ton of heat in it, enough to burn my hand if I held it there long enough. As soon as you open the hood on an LS1 and feel the nylon intake, it's almost cold to the touch, it never gets hot unless you idle it for long periods.

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">
I can see the only way to prove this once and for all is to run insturmented tests of 1) air temp rise going through a manifold in real world conditions and 2) effect of icing down the upper end of the LT1 engine e.g. heads. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have proved this quite often with my previous LT1 car. Cool the car down for a good long time (even without ice, just sitting with the hood open for instance) and it would run 13.5s. Run again right away, and it would slow to 13.7s to 13.8s. With my LS1, with it's nylon intake, I could run all day long and it would never slow down a bit. As a matter of fact I once ran the car 30 times in two hours, barely shutting off the engine at all, and it ran 13.0s to 13.1s all day long except if I screwed up a run. MPH was consistently in the 108s. Do that with an LT1 and watch the mph drop like a stone.

Elite_Hot_Rod

Well mine finally came in yesterday. Strange thing is it has "Weiand" stamped an the top and has Lingenfelters signature etched on the top also. First thing Monday morning it goes to GTP for port matching and polishing to my GTP stage 2 heads. Talking with Craig Gallant at GTP we are looking into having it sent out to have the runners TBC coated in hopes of eliminating the dreaded possible heat soak issue. Should have it back by the end of the week and ready to install with the heads,TR 224/112 cam and a polished BBK 80MM TB. Should be able to post the numbers in about a week and a half. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Mark

<small>[ March 16, 2002, 09:10 PM: Message edited by: Elite_Hot_Rod ]</small>

msce2b-dustin

Just curious, approximately what does a shop charge for porting an intake?? Thanks.

Elite_Hot_Rod

Dustin,

The Holley intake is so new I don't know if you could say there is a "standard" fee. Craig quoted me "about $100.00 bucks" for port matching and polishing but since they haven't done many it could be higher, we'll see. I think it all depends on how far you want to take it. If you go full tilt it will probably be much higher, I just told him to get me some good flow.

Mark

<small>[ March 16, 2002, 11:55 PM: Message edited by: Elite_Hot_Rod ]</small>

Slammed Vette

I was quoted $100 to port match and polish mine too.Was wondering about the coating.Might do that instead of polishing.The bill to get it polished is almost as much as the intake itself.

andy98Z

iTrader: (4)

yea ive heard anywhere from $400-$800 for polishing..

VINCE

iTrader: (1)

Where are the big dyno's? Sounds like another marketing scheme... Hmmmmm.

hondakiller

iTrader: (3)

yeah lets see some numbers. i think a looking at your watch smiley is in the works <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />