Jump to content
Sign in to follow this  
Zedyone_kenobi

Ztherapy excitement

Recommended Posts

Well I am over the top excited to be getting a set of 4 screw SU's done by Ztherapy! I kept my current set of carbs on the car as to have a good set to baseline all my readings, then I can get the new SU's on start tuning.

I know the quality of the products put out by ZT, I am looking forward to getting them on, but any advice and things I should do first. Also any helpful advice on pitfalls in removing the intake?

Thanks!

Signed one excited Z car owner.

Share this post


Link to post
Share on other sites

I'll be interested in hearing other peoples tips and tricks for this also, I have a set of carbs/intake manifold out getting polished and look forward to putting them on. It look really straight forward unless a stud breaks...

Share this post


Link to post
Share on other sites
Also any helpful advice on pitfalls in removing the intake?

You're planning on removing the entire intake manifold and not just the carbs?

Share this post


Link to post
Share on other sites

If the manifold is already off, you've already been through the toughest IMO. The exhaust bolts, and intake/exhaust studs are the main things I was worried about. I let the penetrating oil soak in a while before I tried cracking anything loose. I bought the stud kit from MSA. Studs for the intake manifold made installation much easier.

My '73 had coolant through the manifold so I used a 1/2" pipe plug in the thermostat housing and a plug on the T before the cooling line is routed behind the head (passenger side)

I don't know if this made a difference but I didn't tighten the balance tube completely when I re installed the manifold. My thinking was that the manifolds would install flat against the head

Edited by 70 Cam Guy

Share this post


Link to post
Share on other sites

My main suggestion is do not use a "header" gasket. The paper ones suck. Use a Nissan or other foil and graphite manifold gasket.

For the other guy, use a long extension with a U-joint and socket. You'll have to get in some fairly uncomfortable positions and there will likely be a little pain along with stuffing your hands in tight spaces. It's not that big a deal though.

Share this post


Link to post
Share on other sites

Hi Jon, have you had bad experience with the MSA intake/exhaust gasket? If I understand you, you're referring to a paper style like you might see from Mr Gasket

just as a quick side note, I finally bought my Energy poly bushings so everything is in place to do the coil overs... just need time. I'll send you a picture when I do finally install everything.

As far as the u-joint and socket, I agree. I believe it was the 2nd or 3rd cylinder that has a stud that is impossible to reach with a normal socket. It was even a pain with a shallow universal. Getting the stock manifold unstuck from the head took some convincing with a pry bar. Just take your time.

Share this post


Link to post
Share on other sites

If you're referring to the POS gasket that comes with their 6-1 header, yes I had problems with it. I actually bought the header from Arizona Z Car, but it's the same header, and yeah, I drove the car once and it cracked. Never had any trouble with a graphite gasket.

Share this post


Link to post
Share on other sites

I've had good luck with the three-piece Hooker gasket set. They aren't paper, but are more normal laminated gaskets. Only for square port heads.

http://www.summitracing.com/parts/HOK-10852HKR/

Info from Hooker's site:

This OEM quality gasket is constructed of a thick (.070") laminated, graphite impregnated substrate. The substrate combined with a perforated aluminum core provides superior grip and adhesion.

http://www.holley.com/10852HKR.asp

Share this post


Link to post
Share on other sites
If you're referring to the POS gasket that comes with their 6-1 header, yes I had problems with it. I actually bought the header from Arizona Z Car, but it's the same header, and yeah, I drove the car once and it cracked. Never had any trouble with a graphite gasket.

I should have taken a picture of mine. The msa gaskets I used on my car were not a simple paper gasket, more like a sandwhich of paper and foil in the middle. I doubled them up, gluing them together with copper RTV, then glued the header to the gasket. Got everything mounted, then snug, then I torqued in stages. I let the rtv dry a good half hour before doing the last torquing.

My header leak is fixed, with the header simply resting on the studs, the 2nd primary was too low to seal so with a little tweaking of that primary and keeping the header lifted, everything sealed. Keep in mind this is a who-knows-how-old Clifford header and one of the previous owners cut the flange between the primaries.

Arne, great link!

:beer:

Share this post


Link to post
Share on other sites
Carbs shipped today. Looking forward to this VERY much.

I know the feeling. :) I got my ZTherapy carbs about 2 months ago, and it's been perfect ever since. Hope you'll be as happy with yours as I am with mine. ;)

Share this post


Link to post
Share on other sites

Just get ready to spend a lot of time freshening up everything under the hood.

the ZT carbs look SOOOO damn good, it'll make everything else look shabby by comparison.

big difference in idle and smoothness of engine, and my original carbs ran pretty well.

probably some of the best money i've spent on the Z

Share this post


Link to post
Share on other sites

That was quick. I didn't realize they could do them that fast. I'll be sending mine off at some point. In the past I've resisted because I didn't want the car not drivable for a period of time but the sad reality is that I just haven't driven it in months anyhow.

Share this post


Link to post
Share on other sites

I had a spare intake and carbs I used as a core. My current carbs which work pretty good are still on the car. I will take some vacuum readings and use my uni-syn on it before I remove them to see what difference these carbs make. Also, would like to know how off sync my current set of carbs are. Actually, I think they are pretty good. But to have a working baseline is always good to have.

Share this post


Link to post
Share on other sites

Looks familiar! :cool:

Make sure before you install them that the small little fuel delivery hoses at the bottom of the carbs aren't kinked. One of mine must have gotten budged during shipping, so I had to take the clamp off and reposition it. The video and paperwork tells you all of this though. ;)

Share this post


Link to post
Share on other sites

WOW! Looks awesome. Is that the shack-daddy $630 + Core treatment listed on the price list? It looks amazing!

Share this post


Link to post
Share on other sites

yup, it is the 630 dollar core, plus the intake and balance tube polishing. I also picked up a new PVC valve and PVC hose to the crankcase. OH and got a unisyn while I was at it. Cannot wait to get the PB blaster on the bolts and get that intake/exhaust off.

Share this post


Link to post
Share on other sites

Is that what a polished intake manifold and balance tube are supposed to look like? Huh, I've been polishing mine and they're sort of looking like the attached, wonder what I'm doing wrong?? :) Honestly, your new carbs look amazing. I've been seriously considering sending my polished stuff off to Bruce for final assembly and tuning. I'm sure he will do a much better job then I ever could... I look forward to hearing about how your final installation turns out.

post-18081-14150808529283_thumb.jpg

post-18081-14150808529596_thumb.jpg

Share this post


Link to post
Share on other sites

Yours are definitely more polished than mine buddy! Great job. I would highly recommend clear coating those to prevent tarnish after your done. So much work should be protected.

I think the word polish in Z therapy speak is more of a tumble - polish - clean. I think you have taken it to the extreme...I am sure Bruce has experimented with the best polish he can offer to his clients and still make money. Obviously he could not do what your doing to yours and charge so little.

Keep it up!!

Share this post


Link to post
Share on other sites

Just to freshen up this topic, our carb pieces are run through a high impact machine polish which is designed to close up the cell structure of the aluminum replicating the finish when new. It is not our intention to change the look of the product by doing a chrome polish. We'll leave chrome polish to the owners.

Share this post


Link to post
Share on other sites
We'll leave chrome polish to the owners.

Hi Bruce, I think we all know that you don't aim for a chrome level polish (I was just kidding around). Your product is beautiful, and as you said, returns your clients to [as new or better than new]. Which is appropriate.

Every time I see your work product, my first thought is "wow".

Smoothing and polishing until you have no more fingerprints isn't nor should it be your goal. (and it will never be my goal again).

As I mentioned earlier, if your willing, I'd like my set-up to end up in your expert hands to assemble (now that you have shipped me everything to do it, I'm hoping to ship it all back LOL ).

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.