LS1Silverado05

iTrader: (41)

So a friend of mine has a Weiand intake that has a Lingefelter Signature on the Weiand nameplate. Its an alum inake...he says he doesnt like it since it seems to hold heat...he said he would trade me straight for my LS6 intake...is there any benefit for me to get his intake?...I figured maybe down the road it might prove its worth?...Worth the trade or no?...

amsterdamn

iTrader: (3)

Wouldn't be worth the work if your looking for more horsepower.

GT Griller

iTrader: (8)

If ur gonna spray or boost ur car then i would go ahead and do it.

LS1Silverado05

iTrader: (41)

Im gonna stay N/A...I didnt know if maybe come time for heads it would be good to have...If its not worth my time I wont waste my time. Thanks guys..

408z28

iTrader: (44)

Some friend!! Yeah Ill trade you strait up .... my half eaten hot dog for your ribeye!!!

Silas2k

iTrader: (5)

u can always port match the metal manifold to a set of heads when/if u get them... but id stick with ls6 if i were in your position

NemeSS

iTrader: (127)

not worth it imo,

GR33N GoblinM6

iTrader: (14)

dont do it.. keep the LS6

5_02ls1

iTrader: (20)

ill be the first to say do it.....it can be opened up top 80+mm and can be fully ported.....and the heat soak is an unproven myth....if you ever decide to spray or go n/a you will have it....

theres a thread in thje newbie stickies that shows it out flowing the ls6.......
and it looks som much better

GR33N GoblinM6

iTrader: (14)

you honestly think a metal intake is the same temperature as a composite intake? Ever take a lazer temp gun and record the temps? I have seen in person a comparison.. an LT1 intake vs LS1 intake.. try 117* for LS1 vs. 163* LT1 while sitting idle at the same RPM 950-850, both at 195* water temps.. both stock.. myth.. i think not..

back to topic before we get this guys thread locked..

ultraz

iTrader: (4)

I wouldnt argue that aluminum does not heat up faster than composite manifold, but it will also cool down faster.

Why dont you throw the temps of a diesel engine while your at it, compare apples to apples.

408z28

iTrader: (44)

WTF??? I have a belly button!!

408z28

iTrader: (44)

I want my ls1 to run like a lt1 anyday!!

LS1-450

iTrader: (33)

Why would the thread get locked? We're having an on topic discussion as to the merits &/or differences between the LS6 & Weiand.

I'm with 5_02ls1. Although, the dispute isn't whether or not the aluminum intake holds more heat @ operating temperature than does a plastic intake. The question is whether or not the warmer intake results in lost hp. I also have never seen evidence to support it & posed a question in a different thread regarding a test that would include confirmation of water & oil temps when testing the two intakes.

My opinion is that the air is in the aluminum head as long or longer than it is inside the intake. Therefore, the head is as much or more to blame for heat soak than is the intake. I would like to see a test where each intake is tested on the same day, on the same dyno, in the same car, w/ the same timing settings, @ the same max RPM, tested in the same gear, using the same oil in the engine, trans, & rear end, same ignition components, same dyno efficiency settings, same elevation, same humidity, same wheel & tire size.....you get the point. Most importantly, the test should be done when the water & oil reach the same operating temperature during the time that the intake is installed.

I do believe that when dyno operators claim that heat soak from the aluminum intake led to lost hp, that there was a loss in hp shown during the runs. It would be good information to have if the statement included all of the variables; especially engine coolant & oil temps evaluated during the runs. This would help to better confirm whether or not the intake was indeed the cause of the hp loss.

chriswtx

iTrader: (5)

The LT1 intake has oil splashing under it and the LS1 doesn't. Not a good comparison. The heat soak issue is a non issue..It get hot as hell here in south Texas as you know. Sure when its parked motor off, yes it gets as hot as the motor. But as soon as you drive it for a couple of mins its cooled off. This summer I drove for 45mins, 98* outside as soon as I got home and parked the car idling I lifted the hood and put my hand on the intake and it was just barely warm to the touch.

The Weiand intake needs to be portmatched even to stock heads. I port matched my Weiand intake to my TSP LS6 stage 2.5. There was a big difference in the head runner and the intake runner. Most of the work was done to the upper and lower walls. The side walls were very close. I didn't do much on the plenum side, just took of some casting flashing...also to add to this, I matched up my template to my stock 241 head and noticed the even with a stock head the Weiand would benefit from porting. The Weiand in stock form blocks about 1/8" of the stock head's intake runners floor and about 1/16" of the top of the runner. It looks like the floor of the Weiand's runner is designed to be portmatched. It wouldn't take much to match the floor to the head..

Before porting...


After porting...

chriswtx

iTrader: (5)

Thought you might like to see this pic of my Weiand. The port on the left is finished, the right one I had done the top before I thought of taking the pic. But as you can see, the bottom of the port needed to be opened up some. The line on the bottom of the right port is where the stock 241 head intake runner is. So it really needs to be port matched even to stock heads to make the most of it.....

5_02ls1

iTrader: (20)

are you serious???a ******* lt1 has coolant passages in the intake.....Please try again.....

GR33N GoblinM6

iTrader: (14)

wow.. relax.. no need to swear little camper.. you're both wrong... LT1 intakes DO NOT have coolant passages.. there is NO coolant running in them, like GEN I intakes.. here is picture for your viewing pleasure, showing the underside of the LT1 intake.. note, NO COOLING PASSAGES..



and here are a picture of the LT1 heads.. NOTE, NO COOLANT PASSAGES .. LT1 used a reverse cooling method..


so before you guys jump on that bandwagon.. do some homework.. the LT1 intake would be very much like the metal LS1 intake.... so its NOT IDENTICAL in testing, but its sure close, considering both are using aluminum heads, but the LT1 has an iron block. I do know of someone local that has an LS1 with an Lingenfelter intake manifold. So i will see if i can locate him and do some further research.

GR33N GoblinM6

iTrader: (14)

see post above this one...

GR33N GoblinM6

iTrader: (14)

hate to say it.. but.. yes..