Kirk LTH or Custom made LTH?

BillyMike · Post by **BillyMike** » Sun Jul 13, 2008 6:51 pm

As of now I have a kirk LTH on my 03R/T but I keep seeing post that say the kirk primarys are to small! So what size should they be and how long should they be for best performance drag raceing? Im in south Cali for the time being and have found several places that build custom headers for what ever you want.
Any info would be great.
BTY I cant spell

BillyMike

hybrid-Srt2001 · Post by **hybrid-Srt2001** » Mon Jul 14, 2008 9:05 pm

I would try and find a used header like an afx, or fast fabs, and have a merge collector welded on. It would most likely be cheaper than having one custom made.

blue demon02 · Post by **blue demon02** » Sun Jul 20, 2008 2:38 pm

I say go custom that they if the shop rely knows there stuff they will be able to make it so that its right for your car. Thats one of the biggest things I hate about mass produced headers. What if my setup is differant then the one the header was designed for. NASCAR drivers tune the rpm range on there cars just by changing the headers.

Oh, yea yes the Kirk is a POS. I have nothing good to say about it. Not realy sure what there goal was when they designed the thing but its a compleat wast of money. Preety much anything would be better.

BillyMike · Post by **BillyMike** » Sat Aug 02, 2008 2:38 am

What size should the primarys be and how long should they be?
Any one know?

Adionik · Post by **Adionik** » Sat Aug 02, 2008 5:10 am

Get a TTI and call it a day

BillyMike · Post by **BillyMike** » Sat Aug 02, 2008 1:17 pm

Will the TTI fit the magnun head?

Adionik · Post by **Adionik** » Sat Aug 02, 2008 4:40 pm

Oh....hehe....

BillyMike · Post by **BillyMike** » Sat Aug 02, 2008 5:29 pm

Adionik wrote:Oh....hehe....

I take that as a no.

Adionik · Post by **Adionik** » Sat Aug 02, 2008 6:07 pm

where in texas are you?

BillyMike · Post by **BillyMike** » Sat Aug 02, 2008 6:25 pm

Central Texas. Killeen/Fort Hood its about an hour up 35 from Austin.
Are you located in TX?

03blackrt · Post by **03blackrt** » Sat Aug 02, 2008 6:32 pm

I'd go with the OBX stainless header and modify it.

You going to be running the Crane 14 cam in your sig? Stock R/T intake manifold? Stock valves? These are the key componets to figuaring out size and length of the header.

BillyMike · Post by **BillyMike** » Sat Aug 02, 2008 6:51 pm

03blackrt wrote:I'd go with the OBX stainless header and modify it.

You going to be running the Crane 14 cam in your sig? Stock R/T intake manifold? Stock valves? These are the key componets to figuaring out size and length of the header.

Modify how??? The ports and header wont line up correct if i remember.
I dont know much about size and length depending on airflow. I am also planning on getting a manifold from All Motor Mike some time soon. I am building for a faster 1/4 mile time.

MXer · Post by **MXer** » Sun Aug 03, 2008 12:45 am

The OBX LTH was a nice piece. AMM did a head for me ported to the Magnum head spec's and it bolted up fine. I don't know if the Magnum head bolt pattern is different though.

Post by **occasional demons** » Mon Aug 04, 2008 12:24 pm

All SOHC heads have the same intake and exhaust bolt patterns, just the exhaust ports are larger on the Magnums.

Adionik · Post by **Adionik** » Mon Aug 04, 2008 6:54 pm

BillyMike wrote:Central Texas. Killeen/Fort Hood its about an hour up 35 from Austin.
Are you located in TX?

San Antonio

I love Austin...there is not shit going on in Kileen though.

BillyMike · Post by **BillyMike** » Mon Aug 04, 2008 9:32 pm

Adionik wrote:
BillyMike wrote:Central Texas. Killeen/Fort Hood its about an hour up 35 from Austin.
Are you located in TX?
San Antonio

I love Austin...there is not shit going on in Kileen though.

Dang thats cold. Killeen is a little different because of the Army being here. But for a small area there is a lot of great cars and a all right street scene for all types of cars and trucks. But because im in the Marine Corps im in South Cali for a little while and the scene out here is alot different.

BlackRoseRacing · Post by **BlackRoseRacing** » Sun Aug 31, 2008 9:32 pm

You going to be running the Crane 14 cam in your sig? Stock R/T intake manifold? Stock valves? These are the key componets to figuaring out size and length of the header

Exactly, for a proper setup you don't just throw on a "Performance" header and assume its going to work. If you have a stock setup, its designed to peak power under 6500rpm so a long tube header is just going to push your power band upto that 6500 point or possibly higher. There are ways to figure out the proper sized header for any given applications.....

BillyMike · Post by **BillyMike** » Mon Sep 01, 2008 9:47 am

BlackRoseRacing wrote:
There are ways to figure out the proper sized header for any given applications.....

Well how do I figure this out ?

zeRk_RT · Post by **zeRk_RT** » Fri Sep 12, 2008 9:43 am

Hey guys im wondering i got a 2001 rt that i have

comp cams 400
mpx underdrive pulley
injen cai

im planning to get a header what could be best i dont plan on changing ecu so im stock at 6600rpm

could a long kirk racing headers help me out or its just a waste?