ZR-1 Net Registry Forums - Headers Installation...

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- - Headers Installation... (http://zr1.net/forum/showthread.php?t=22266)

Re: Headers Installation...

Quote:

Originally Posted by Schrade (Post 201654)

What DID they use to hold the gaskets in place in BG???

I used a smear of the RED, HIGH TEMP RTV on both sides of the gasket to stick it in place. That center bolt serves as a convenient hanger to hold the gasket in place. Just have to be careful not to accidentally scrub it out of place while situating the header.

Re: Headers Installation...

Camshaft Position Sensor
Knock Sensor

Below the Knock Sensor would be the Oil Level Sensor mounted on the Oil Pan if the LT5 is a 91' or later.

http://i287.photobucket.com/albums/l...a3b6ea8ee6.jpg

Now.....do not clobber it all up trying to fix it :sign10:

Re: Headers Installation...

I have my top end done, less the.cylinder heads and what a difference!!!

The obx headers hit the steering rack and required a ding in the #1 tube to clear. I don't like it and plan on having the #1 tube reshaped. Pete showed me some Jeal and Watson headers and they all needed a ding to clear, but the obx a little more.

This car has some balls now and is quite impressive. I will have some new dyno numbers soon to post.

Good luck!

Re: Headers Installation...

Quote:

Originally Posted by pushrod-v8 (Post 201909)

Amazing what a little more air does for these motors, isn't it? BTW, my Watsons required no mod. The tubes are 1 7/8" on these, which I think has no real affect on power.

Re: Headers Installation...

The obx are 2", and I am most likely mistaking the brand of one of those headers in petes garage.

Re: Headers Installation...

Quote:

Originally Posted by pushrod-v8 (Post 201923)

The obx are 2", and I am most likely mistaking the brand of one of those headers in petes garage.

Karl,

No I think you are right. He has Jeals and Watsons there. Some of the interference is vehicle specific depending on how the motor is positioned.
1/8" can make a diff.

Re: Headers Installation...

My OBX rubbed on the steering shaft. Had I known this before I had them coated I would have dimpled them. Instead, we shimmed the motor mounts. Don't go too crazy, there ain't much room under the hood to lift the engine.

Re: Headers Installation...

Wouldn't be any fun if it bolted right in, then any body could do it. It seems like I always have to be a bit more creative when working on the Z. Nothing seems to go as planned but I think thats why we we all seem to enjoy these cars...... there just little different if you know what I mean.

Re: Headers Installation...

Quote:

Originally Posted by Schrade (Post 202864)

Bolt right in... Dream on Schrade.

Where's J Becker? What pipes do you have with your automatic? Anyone else been here???

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So we're still working on clearance for the shift linkage. As little milling / modification as possible here.

The PE 3" pipes are designed for a C4, and the D side pipe even has an angle recessed for an LT1 with a 4L60e - I got a CLOSE fit, with no milling. But it was too close, with heat a consideration. The tranny control module has a temp monitor w/ warning, for the tranny fluid heat.

So I decided to wrap the header-to-X-pipe sections (oops - gave away the header wrap excess :o ), and the wrap made for contact with the shift linkage - the rubber boot / sleeve. The additional wrap might also quell some drone...

For the 'Pittman' arm 'A' at the shifter, I can take some bend out, without affecting the shift shaft range of motion. Getting 'Park won't be a problem - it gets the 'P' detente. I never go there anyway - e-brake for parking...

I also zipped off about 1/4" - 5/16" off of that stud for the cable end, along with about 1/3 of the bolt itself, for additional clearance.

Then the rear cable stay bracket has to be given about 1/4" additional recess at the Blue. Bending THAT bracket is out of the question - it has re-enforcement in the 'square'.

https://lh6.googleusercontent.com/-p...4/IMG_6444.JPG

https://lh4.googleusercontent.com/-e.../IMG_6444c.JPG

Looks like you have it whipped into shape Chuck!

They sell some velcro heat sheild you could wrap the linkage with. It comes in a few diameters to fit each subject matter.

Made by a company called DEI??

If you could removed a small section on the header wrap, would it give the clearance needed?

Re: Headers Installation...

What's up Brad...

I had clearance without wrap, but it was too close. I wanted heat protection.

It will clear once I get the bend in forward, and the bracket recess opened up inward toward the pan.

#1 cleared the steering shaft. Only things I see now is the dipstick, and O2 reach.

Everything ELSE should bolt in.

No chance of beach time next week there Brad? Gonna' try to get up with J Fletcher and do some range time one day. 9 beds; only me, sis + stepmom... Gonna' squeeze a few .30 Carbine, M1A .308. My Rock-Ola is a REAL tack driver, ESPECIALLY for .30 Carbine... ;)